Hitachi dp85 schematic

NOVEMBER, 1999 Prepared by: ALVIE RODGERS C.E.T.

This training package is geared specifically to the 61HDX98B HDTV. However, most of
the material will cross over to the 60SDX88B progressive scan HDTV capable set. The
necessary understanding that the 60SDX88B requires a Set-Top-Box to receive SDTV and
HDTV signals is important. The 60SDX88B does NOT have a DM-1 module. This module
is built into the 61HDX98B which allows this set to receive all ATSC formats as well as
Direct TV, NTSC, SDTV or HDTV. It does not have Component Inputs.
The 60SDX88B has a built in FLEX converter that translates any input into either 480P for
NTSC or SDTV and/or 1080I for HDTV. It does have Component Inputs.

The Power Supplies are the same for either set.
The Deflection circuit is very similar between the two sets.
The Signal PWB is very similar between the two sets, minus the differences mentioned
above.
Digital Convergence is the same between the two sets.
61HDX98B is a DP-85 chassis with a 16X9 aspect screen.
60SDX88B is a DP-86 chassis with a 3X4 aspect screen.

SEE DP-86 TRAINING SECTION IN THE BACK OF THE PACKAGE.

CONTENTS... 1999 DP-85 HDTV Projection Television Information

DP-85 CHASSIS TRAINING and INFORMATION” HDTV

CONTENTS

”SECTION” “PAGE”

1): GENERAL BLOCK DIAGRAMS, SECTION:

• Power Supply Block Explanation --------------------------------------------------------- 01-01

• Power Supply Block Diagram ------------------------------------------------------------- 01-02

• DM-1 Module Front End Block Explanation -------------------------------------------- 01-03

• DM-1 Module Front End Block Diagram ------------------------------------------------ 01-05

• AV Selector Block Explanation ------------------------------------------------------------ 01-06

• AV Selector Block Diagram ---------------------------------------------------------------- 01-07

• System Control Block Explanation ------------------------------------------------------- 01-08

• System Control Block Diagram ----------------------------------------------------------- 01-10

• 2H Video Block Explanation --------------------------------------------------------------- 01-11

• 2H Video Block Diagram ------------------------------------------------------------------- 01-12

• Deflection Circuit Block Explanation ---------------------------------------------------- 01-13

• Deflection Circuit Block Diagram -------------------------------------------------------- 01-16

• CRT Block Diagram ------------------------------------------------------------------------- 01-17

• Audio Output Block Diagram ------------------------------------------------------------- 01-18

• Rear Panel Diagram ------------------------------------------------------------------------- 01-19

• 4X3 Displayed on 16X9 Four Possible Modes ------------------------------------------- 01-20

2): POWER SUPPLY INFORMATION, SECTION:

• Digital Circuit Power Supply SHUT DOWN Block Diagram -------------------------- 02-01

• Digital Circuit Power Supply SHUT DOWN Circuit Diagram ------------------------- 02-02

• Digital Circuit Power Supply Visual Trouble Shooting LED's Diagram ------------- 02-03

• Digital Circuit Power Supply Distribution Diagram -------------------------------------- 02-04

• Deflection and High Voltage Power Supply SHUT DOWN Block Diagram --------- 02-05

• Deflection and High Voltage Power Supply SHUT DOWN Circuit Diagram -------- 02-06

• Deflection Power Supply Visual Trouble Shooting LED's Diagram ------------------ 02-07

• Deflection Power Supply Distribution Diagram ------------------------------------------ 02-08

3): HORIZONTAL DRIVE, SECTION:

• Horizontal Drive Circuit Diagram --------------------------------------------------------- 03-01

4): VIDEO SIGNAL INFORMATION:

• Video Signal Main and Terminal Circuit Diagram -------------------------------------- 04-01

• ABL Circuit Diagram ------------------------------------------------------------------------- 04-02

• Horizontal and Vertical SWEEP LOSS DETECTION Circuit ------------------------ 04-03

5): AUDIO CIRCUIT INFORMATION:

• Audio Signal Main and Terminal Board Circuit Diagram ----------------------------- 05-01

• Audio SURROUND Board Circuit Diagram ---------------------------------------------- 05-02

• Audio and Video MUTE Circuit Diagram ------------------------------------------------ 05-03

• Audio MUTE Surround Board Circuit Diagram ----------------------------------------- 05-04

• Audio MUTE Audio Output Board Circuit Diagram ------------------------------------ 05-05

6): DIGITAL CONVERGENCE CIRCUIT INFORMATION:

• Digital Convergence INTER-CONNECTION Diagram -------------------------------- 06-01

CONTENTS PAGE (A-1)

DP-85 CHASSIS TRAINING and INFORMATION” HDTV

CONTENTS

”SECTION” “PAGE”

• Digital Convergence OVERLAY Information -------------------------------------------- 06-02

• Digital Convergence OVERLAY DIMENSIONS --------------------------------------- 06-03

• Digital Convergence REMOTE CONTROL Button Identification ------------------- 06-04

7): MICROPROCESSOR

• Microprocessor Port Definitions ......................................................................................07-01

• Microprocessor Data Port Block Diagram .......................................................................07-03

• Microprocessor Data Communications Block Diagram ...................................................07-04

8): ADJUSTMENTS

• Adjustment Order ...............................................................................................................08-01

2

• I

C Bus Alignments in the Field ...........................................................................................08-02

• Centering Magnets Location ...............................................................................................08-06

• Pre Heat Run Condition .......................................................................................................08-07

• Cut Off and Focus Adjustment ............................................................................................08-08

• Digital Convergence Unit Crosshatch Phase ......................................................................08-09

• Horizontal Position “Coarse” Adjustment ..........................................................................08-10

• Raster Tilt (Deflection Yoke) Adjustment ..........................................................................08-11

• Beam Alignment Adjustment ..............................................................................................08-12

• Centering Magnet and Beam Shape Magnet Identifications ............................................08-13

• Static Centering and Center Adjustment ........................................................................08-14

• Horizontal Blanking Phase Adjustment ..............................................................................08-15

• Horizontal & Vertical Size Adjustment ................................................................................08-16

• Trapezoid Distortion Adjustment .......................................................................................08-17

• Side Pincushion Distortion Adjustment ..............................................................................08-18

• Beam Form Adjustment ......................................................................................................08-19

• Optical System Alignment (Lens) ........................................................................................08-20

• Blue Defocus Adjustment ....................................................................................................08-21

• Red, Green and Blue White Balance Tracking .....................................................................08-22

• Sub Brightness Adjustment Alternate Method .....................................................................08-23

• Horizontal Position “Fine” Adjustment ...............................................................................08-24

DIGITAL CONVERGENCE ALIGNMENT PROCEDURE

• Digital Convergence Overlay Smooth and Full .................................................................08-25

• (3X3) and (7X5) Stopping positions .....................................................................................08-26

• (13X9) Stopping positions ....................................................................................................08-27

• Digital Convergence Remote Control .................................................................................08-28

• Clearing RAM Data . ............................................................................................................08-29

• Raster Centering .................................................................................................................08-30

FULL MODE

• Green 3X3 Adjustment ......................................................................................................................08-31

• Red and Blue 3X3 Adjustment ..........................................................................................................08-32

• Green 7X5 Adjustment ......................................................................................................................08-33

CONTENTS PAGE (A-2)

DP-85 CHASSIS TRAINING and INFORMATION” HDTV

ADJUSTMENTS CONTINUED

”SECTION” “PAGE”

• Red and Blue 7X5 Adjustment ..........................................................................................................08-34

• Green 13X9 Adjustment ....................................................................................................................08-35

• Red and Blue 13X9 Adjustment ........................................................................................................08-36

• Storing New Dig. Conv. Data ...........................................................................................................08-37

• Magic Focus Initialization ................................................................................................................08-38

SMOOTH MODE
Change Screen Format to SMOOTH Mode and repeat steps below.

• Green 7X5 Adjustment (If necessary) ...............................................................................................08-33

• Red and Blue 7X5 Adjustment (If necessary) ...................................................................................08-34

• Green 13X9 Adjustment ....................................................................................................................08-35

• Red and Blue 13X9 Adjustment ........................................................................................................08-36

• Storing New Dig. Conv. Data ...........................................................................................................08-37

• Magic Focus Initialization ................................................................................................................08-38

• Static Centering Adjustment .......................................................................................................... 08-39

Minor Digital Convergence Adjustment

• Minor Adjustments Needed ............................................................................................................08-40

• Accessing Digital Convergence Error Codes ..................................................................................08-41

Adjustments Continued

• Memory Initialization Procedure .......................................................................................................08-42

9): TROUBLE SHOOTING

• No Raster No Power ..........................................................................................................................09-01

• A and B: No Relay Click, Def. Red LED Blinking ...................................................................09-02

• C and R: No Red LED B+ .........................................................................................................09-03

• D, E and F: All LED’s going off at the same time Def. and Power PWB ................................09-04

• G One LED going off a little before the others Dig. and Sig. Power PWB ..............................09-05

• DM-1 Trouble Shooting Figure .......................................................................................................09-06

• DM-1 Troubleshooting Checks ........................................................................................................09-07

• DM-1 Waveforms used for Troubleshooting ..................................................................................09-08

• DM-1 Video Waveforms Troubleshooting Checks ........................................................................09-08

• Deflection Waveforms Troubleshooting Checks ............................................................................09-10

• Other Key Waveforms Troubleshooting Checks ............................................................................09-13

• Smart Card Troubleshooting Checks .............................................................................................09-18

10): COMPONENT IDENTIFICATION AND PARTS INFORMATION

• Component and Parts Identification ...............................................................................................10-01

CONTENTS

CONTENTS PAGE (A-3)

BLOCK DIAGRAM EXPLANATION POWER SUPPLY BLOCK

The 61HDX98B utilizes two switching power sup­plies.
DP-85's stand by switching mode operation is different
from AP-7X and 8X chassis's. Switching frequency of
AP-7X and 8X chassis is dropped to 20kHz during
stand by mode. But the DP-85's power supply is not
dropped during stand by mode. DP-85's is operated
about 100kHz.

Normally Power Supply switching is operated as fol­lowing.

T901: 25- 56 kHz (Normal)
100-200 kHz (Stand by)
TP91 30- 53 kHz (normal)

POWER SUPPLY UTILIZED FOR THE DIGI­TAL AND SIGNAL CIRCUITS:

(Sub Power Supply PWB)

This supplies power primarily to the Digital circuits, i.
e. DM-1 module. This supply runs anytime the set is
plugged into an AC outlet.
The voltages produced are;

• +33V,

• Power for the Satellite dish which is switched be-

tween 13V and 19V dependant upon the channel
being received.

• Stand By 12V also called A12V

• TV9V

• TV5V

• 3.3V

• -5V

POWER SUPPLY UTILIZED FOR THE DE­FLECTION, AUDIO and DIGITAL CONVER­GENCE CIRCUITS: (Deflection PWB)

This supply only operates when the set is turned ON.
When the ON command is received from the DM-1
module, relay S-901 energizes and delivers AC to the
main bridge rectifier D903 located on the Sub Power
Supply PWB.
This supplies power primarily to the Deflection circuit
for the collector of the High Voltage generation circuit
and the collector of the Deflection Output transistor.
Also, the Convergence output amps and the Audio
output amps derive their voltages from here as well.
The voltages produced are;

• +130V used for Deflection and High Voltage cir-

cuits.

• 220V used for the collectors of the R, G, B drivers

on the CRT PWB and the Velocity Modulation

circuits.

• 6.3V to drive the CRT Heaters.

• +28V for the Convergence, Velocity modulation

and Audio Out circuit.

• +13V for Vertical.

• -13V for Vertical and also converted down to

the –5V for the Digital Convergence Unit.
The TV9V supply generated from the Power Supply
for Digital listed above, is regulated down to +5V for
the Digital Convergence Unit and the A12V for the
Power Supply for Digital is used as a switched On/Off
for the Deflection Vcc by the Rainforest IC.

Page 01-01

DP85 POWER SUPPLY BLOCK

DIAGRAM

Fuse

Line

Filter

Relay

Line

Filter

R

POWER SUB P.W.B.

STAND BY

35V

L. NB Sw. Reg.
A12V Sw. Reg.

I901

Sub
Switching
Regulator

EE42

24.5V

-7V

R/F 28V

C21V

9V Sw. Reg. TV9V
5V Sw. Reg. TV5V

3.3V Sw. Reg.

3.3V Sw. Reg.

+33VS Reg

Power Fail

-5V Sw. Reg.
28V
21V

SWITCHED

Switching
Regulator

To Signal Block

POWER DEFLECTION P.W.B.

(130V) Reg

220V

6.3V

IP01

Main

EE49

+28V

-28V

+13V Reg.

-13V Sw. Reg.

-5V Reg.

Def. +B V1&V2
CRT &

Vm Out
Heater

Convergence
Velocity Mod.
Audio Out

Convergence

Vertical

To Deflection Block

Vertical (M13)
DCU

AC108-

132V/

Page 01-02

60Hz.

AC Inlet Type

+5V Reg.TV9V

DCU
HVcc12VA12V

BLOCK DIAGRAM EXPLANATION FRONT END

The 61HDX98B utilizes a non-repairable Front End
Assembly called the DM-1 Module. This module con­tains the main System control center, NTSC Front
End, Direct TV Receiver and ATSC Tuner. The block
diagram indicates the internal blocks contained within
the Front End Assembly, hear after called the DM-1.
Starting counterclockwise from the upper left.

SATELLITE:

This represents the Direct TV satellite dish connection
to the back of the set.
SATELLITE TUNER/IF:
This is the internal IRD, (Integrated Receiver and De­coder). This receives the satellite signal from the LNB
(Low Noise Block) located on the Dish. This block
converts the signal to a usable signal for decoding.

SATELLITE CARD and SATELLITE LINK
BLOCK:

To receive Direct TV signals, the customer is required
to insert an active Security Card into the back of the
set. This care contains a programmable chip that con­tains the consumer’s information and the channels that
the consumer is allowed to receive. Also, this card is
used when billing information is retrieved by Direct
TV.

LINK/MIX:

This block passes the particular signal that the cus­tomer has decided to view on screen. Either the Direct
TV signal or the ATSC tuner.

TERRESTRIAL:

This indicates the outside antenna the consumer has
erected to receive NTSC signals as well as ATSC sig­nals.

CABLE:

This is the input from the consumer’s cable signal.

HD/NTSC TUNER/IF SPLITTER:

This block receives the Terrestrial signal and depend­ant upon which source the consumer has decided to
view, processes the signal through the appropriate
tuner.

• HD: Receives the Terrestrial Signal and routes it

to the ATSC tuner. This tuner is capable of re­ceiving all 18 ATSC formats.

• NTSC: Receives the Terrestrial Signal and route

it to the NTSC Tuner.

• The NTSC signal is routed out of this block on the

line labeled Composite Video to the Signal Selec­tor IC which selects the appropriate signal accord­ing to the consumer’s choice. Either Tuner,
AVX1, 2 or 3 and/or S-In 1,2 or 3.

• The NTSC audio IF signal is routed to the MTS

STEREO DECODER.

• SPLITTER:

• The splitter routes the NTSC signal out to the RF

Out PinP Tuner path to the PinP Tuner.

MTS STEREO DECODER:

Decodes the NTSC Audio IF signal an decodes it into
Left Total and Right Total. This signal is routed to the
Dolby® Pro-Logic decoder.

HDTV LINK:

This block routs the ATSC signal received by the
ATSC tuner to the Link Mix.

NTSC YUV A/D:

This block receives the NTSC luminance and chroma
signals and converters them to a digital signal to be
utilized by the MPEG VIDEO decoder.

FROM MAIN MICRO:

This is communication in and out for the Sub­Microprocessor. Information such as the Selector IC
selection, power on/off commands, etc.., are routed
from the ARM/Transport or Main Microprocessor sec­tion.

SD-A/V:

This is the output of the AC-3 digital audio to be used
by an off board AC-3 decoder.

MODEM:

Direct TV polls the Direct TV receiver section through
the customer’s phone lines and determines such things
as Pay for View authorization, customer’s informa­tion, Card authorization and billing information.

ARM/TRANSPORT:

The Arm/Transport block receives all signals from Di­rect TV, ATSC. It also receives the Infrared remote con­trol signals, Front panel Key data, and Slave Microproc­essor information. This is the Main Microprocessor sec­tion of the DM-1 module. Dynamic RAM and ROM in­formation is processed from Soft ward load into ROM
and determines the state of the Television. Information
from ATSC and/or Direct TV is routed to the MPEG
VIDEO DECODER.

Page 01-03

BLOCK DIAGRAM EXPLANATION FRONT END

MPEG VIDEO DECODER, NTSC UPCONVER­SION, OSD:

What ever signal is requested by the consumer as the
source for viewing is processed through this block and is
output to the YUV D/As.

YUV/DAs:

This block takes the digital signals provided to it and
converts them to an analog signal which is usable by the
signal processing circuits.
All signals are routed out through the line labeled 2.14
YUV/YIQ, (NTSC Signal up converted to 480P or 2.14
HYPBPR which is the HDTV output as 1080I.

MPEG/AC-3 AUDIO DECODER:

This block processes the audio component from the
ARM/TRANSPORT or the block A/Ds AUDIO, which
is the NTSC audio processed by the Pro Logic decoding
circuit, labeled as 5.1, (Front Left, Front Right, Center,
Rear Left and Rear Right + Sub Woofer audio also called
LFE. Then this block processes the signal and outputs all
audio to the Audio D/As.

AUDIO D/As:

This block is the Digital to Analog converter which con­verts the digital audio signal sent to it by the ARM/
TRANSPORT block and converts it to a usable analog
signal to be processed by the audio output section.
The audio labeling is comprised of the following:

L/R = Audio Front Left and Right
LS/RS = Rear or Surround audio Left and Right
C/LFE = C for Center and LFE for Sub Woofer, also

called Low Frequency Effects.

Page 01-04

DP85 FRONT END

BLOCK

Satellite

Terrestrial

Cable

RF Out

PinP

Tuner

DM-1 Module

SATELLITE

TUNER/IF

HD/NTSC

TUNER/IF

SPLITTER

MTS

STEREO

DECODER

L/R

Composite

Video

SATELLITE

VSB

Satellite

Card

LINK

HDTV

LINK

NTSC YUV

A/D

1HYIQ

SD-A/V MODEM

LINK

MIX

MPEG VIDEO

UPCONVERSION

From

Main

Micro

PhoneSD-

ARM/

TRANSPORT

DECODER

NTSC

OSD

YUV

D/As

IR from Ft. Panel

Dimmer, AD, Key In

DRAM

ROM

Data

Address

Handshake

SRAM

From Main Micro

NRSS/ISO7815

MPEG/AC-3

AUDIO

DECODER

5.1 Audio

Digital

A/D's

AUDIO

L/R

AUDIO

D/A's

EEROM

L/R
LS/RS
C/LFE

Page 01-05

2.14YUV/YIQ

2.14 HYPBPR

To 2H Video Circuit

BLOCK DIAGRAM EXPLANATION A/V SELECTOR

C. VIDEO (MAIN) and R/L (AUDIO MAIN):

NTSC Video and NTSC Audio is routed from the
DM-1 Block diagram. They are shown in the Block
Diagram as one line, but they are separate signals.
Anytime a signal is routed from the DM-1 or going to
the DM-1 module, they must be sent through a DM-1
I/F block. This block reduces the noise by a noise can­cellation process. This process uses the output of a
comparator and routes the output back to the negative
input to subtract the noise. It also level shifts the signal
to make it useable by the circuit to which it is routed.

DM-1 I/F BA4558:

This is the noise cancellation and level shift block.

AUDIO/VIDEO SELECTOR TA8851BN:

This is the selector IC. Dependant upon the customer’s
viewing preference, the DM-1 will communicate via
I2C bus communications and select the NTSC signal
which is sent to the demodulator. The demodulator
prepares the NTSC signal for the DM-1 module.
This IC selects the following inputs;
Main tuner
Video One, Two or Three
S-In One, Two or Three
PinP Video and Audio outputs. This can be any of the
input provided above except the PinP has it’s own
tuner.
Note: PinP isn’t available when the customer has se­lected Direct TV or ATSC as it’s source. This is be­cause, as will be shown later, the PinP Video is super
exposed upon the NTSC video only.
Any video source selected for the Main picture will be
routed to the 3D Y/C module.
Note: There are NO Component inputs on this set.

Page 01-06

C. Video (Main)

R/L (Audio Main)

A/V SELECTOR BLOCK DP85

CHASSIS

TERMINAL P.W.B.

DM-1

I/F

B4558

Comp. Video (Main) R/L (Main)

RF from DM-1

Tuner U001

VT+33V

Video 4 V4, S4, L/R4

PinP Video and

Selected L/R

(NTSC Main Audio)

+5V +9V

PinP

Lock
Clock
Data
Enable

MonoAudio

PinP
Video
Mono

AUDIO/VIDEO

SELECTOR

TA8851BN

PinP Video

to PinP Unit

Video D YC
To 3DYC

9V

I2C

PinP L/R Out

To Audio Out PWB

Video One In

Video Two In

V1 S1 L/R1

V2 S2 L/R2

V3 S3 L/R3

Video Three In

Page 01-07

BLOCK DIAGRAM EXPLANATION
SYSTEM CONTROL AND SIGNAL PROCESSING

MAIN VIDEO FROM SELECTOR IC:

At the bottom left hand side is shown the Main Video
from Selector label. This is the NTSC video from the
selector IC. This is routed to two blocks.

3D Y/C:

The 3D Y/C separates luminance from the chroma. It
also add the 3D effect, (if the 3D Y/C is turned on
within the menu). Noise is canceled and the two sepa­rate components are output to the Video/Chroma De­modulator.

VIDEO/CHROMA DEMODULATOR:

This IC decodes the signal down to it’s Luminance and
Chroma. components and outputs it as 1HYIQ.

DM-1 I/F:

Noise cancellation and level shifting preparing the sig­nal for the DM-1 module.

1HYIQ:

1HY = Standard NTSC format luminance. (Also
known as 480I).
I and Q = Standard NTSC format, demodulated
chroma components.

SYNC DET.:

Separates the Sync signal from the composite video sig­nal.

SYNC DET.:

This block outputs composite sync to the PinP unit which
is used for timing for display. This is specifically related
to the Demodulator, D/As and Read/Write clock. The
Read/Write clock also is controlled by the frequency of
the Subcarrier also called fsc.
The Composite sync is also sent to the DM-1 on the line
labeled as 1H Composite Sync. The DM-1 uses this sig­nal for OSD positioning, auto channel detection and AFC
loop activation.

TV uCOM MICROPROCESSOR:

This is the slave Microprocessor or Sub-Microprocessor.
This IC is in constant communications with the DM-1
module. The slave uP. Receives or outputs the following
signals;

HBLK: = Input; this is the Horizontal Blanking signal.
Used for Service OSD signal creation timing.

S.WIDE: = Output; when the customer watches regular
NTSC 4X3 aspect source, they have a choice of viewing

the signal in one of 4 ways.

Normal: This will display a standard 4X3 picture
with black panels on each side of the picture.
Fill: This will expand the picture to fill the screen.
The top and bottom will be cropped.
Full: This will expand the picture side ways and fill
the screen. However the picture will be non-linear.
Smooth Wide: This will keep the center of the pic­ture linear and stretch the outside edges to fill the

screen.
With the four choices above, the DM-1 module controls
the signal for 3 of them; Normal, Fill and Full. However,
during Smooth Wide, the deflection circuit is switched to
perform the stretching of the sides. The slave Microproc­essor outputs S.Wide during this time.

CUT OFF: = Output; labeled as V. Stop, during the Ser-
vice adjustments for Cut Off, (Screen Background con­trols), the vertical must be collapsed. This output causes
the B+ to the vertical output IC front end to be grounded
and grounds the vertical trigger pulse called V. Saw.

D. SIZE: = Output; labeled as Digicon Size, during
Smooth Wide mode, the Digital Convergence Unit, hear
after called DCU, must know that the set is in the dis­torted deflection mode. This signal tells the DCU just
that.

MAGIC SW: = Input; when the customer presses the
Magic Focus button on the control panel, the DCU noti­fies the slave micro. That it is busy performing Magic
Focus. The slave micro. Notifies the DM-1 module and
the DM-1 module ignores infrared pulses from the re­mote control.

CLOSED CAP. DATA: = Input; This input receives the
composite sync signal and decodes the Closed Caption
Data. (Data Slice line 21) and the communicates with the
DM-1 Module. The DM-1 Module actually introduces
the Closed Caption Characters into the Video stream.

F. PANEL: = Output, Dependant upon the customer’s
menu selection, will determine the IRE level of the side
panels when 4X3 Normal mode is used. By raising the
side panel IRE levels, the 4X3 picture won’t burn in the
CRT’s.
MAIN SYNC DET: = Input; this is used for detecting the
Closed Caption Data. This information is routed to the
DM-1 module for OSD generation. NOTE: the sub­micro. Doesn’t produce OSD characters for Closed Cap­tion.
PinP SYNC DET: = Input; PinP tuner sync is routed to
the sub-micro. And is used during PinP tuner channel

Page 01-08

BLOCK DIAGRAM EXPLANATION
SYSTEM CONTROL AND SIGNAL PROCESSING

selection to activate AFC.

MAIN SYNC DET. = Input; This input is used for Ser­vice OSD positioning and Auto Programming channel
detection.

PinP SYNC DET. = Input; This input is used for judge­ment of the Slave Microprocessor to determine the AFC
Loop activity of the PinP Tuner.

MUTE (Audio): = Output; during channel change, ex­ternal video selection with no input, power up or power
off, and loss of Vertical Blanking, the audio and video
are muted.

V.MUTE (Video): = Output; during child lock, channel
change, or power on/off, the video is muted.

POWER: = Output; when the front power button or the
remote power button is pressed, the DM-1 module noti­fies the sub-micro. And the sub-micro. Outputs a power
on/off command to the relay driver Q-007. Outputs high
for ON and low for OFF.

OSD & OSD BLK: = Output, this is the on screen char­acters for the Service Menu only. OSD Blk is OSD
blanking. This cleans us the video where the OSD is to
be inserted.

HV BLK: = Input; this inputs are utilized by the Micro­processor for Service OSD positioning.

HV BLK PH: = Output; during Service Adjustment and
in the NTSC normal mode. This picture doesn’t fill the
screen. The areas on the side of the picture are called
Side Panels. This can be adjusted. The HV BLK PH,
controls the timing of the side panel OSD outputs.

SIDE PANEL APL FROM 2H VIDEO PWB: = Input;
the Microprocessor receives a pulse created within the
2H video PWB. This pulse represents the timing pulse
for the Side Panel OSD production.

Blocks continued;
OSD MIX: Only the Service menu OSD is output from
the Slave Microprocessor. The Digital convergence unit
puts out OSD characters as well. This characters product
the Service Grid and other text during Digital Conver­gence adjustments and/or Magic Focus. The two OSD
sources are received by the OSD Mix. This is comprised

of a quad Or Gate and outputs the signal to be superim­posed upon the video signal path from the DM-1 Mod­ule.

PinP VIDEO FROM SELECTOR IC: The video from
the PinP tuner is routed to the PinP unit and the Sub Mi­croprocessor for Closed Caption decoding.

Page 01-09

DP-85 CHASSIS SYSTEM CONTROL & SIGNAL PROCESSING

BLOCK

PinP

Unit

PinP
Video

3D

Y/C

Unit

Y/C

Y/C

H Sync
V Sync

1 H Composite

Sync

I2C

Closed Cap. Data

Digital OSD / Busy

TV uCOM

Microprocessor

HBlk

S. Wide

Cut. Off

D. Size

Magic Sw.

F Panel
Main Sync Det
PinP Sync Det
Mute (Audio)
V.Mute (Video)
Power
OSD & OSD Blk
for Service Menu

OSD RGB Ys

OSD

MIX

+

RGB Ys

OSD

AD8056

VIDEO/

CHROMA

DEMOD

YIQ

Mix

YIQ

1HYIQ

DM-1

I/F

Clamp

I2C

Sync Det.

Y

MEMORY

Sync Det.

PinP

Sync Det.

I2C

HV BLK
H BLK PH

Side Panel
APL
from 2H
Video PWB

Page 01-10

PinP Video from Selector
IC

PinP V

SIGNAL P.W.B.

CCD Video

CCD Video

PinP

Main Video from Selector IC

Main

BLOCK DIAGRAM EXPLANATION 2H VIDEO

The 2H Video PWB is similar to the Rainfor­est circuits used in the past. The YUV/YIQ
(480P) and/or the Y-PR/PB (1080I) is routed
through another DM-1 Interface IC for noise
cancellation and level shifting and into the
Rainforest chip, IX01. Here the signal is pre­pared for the CRT’s. Pedestal level detection,
Chroma preparation, OSD RGB from either
the DCU or the Slave Microprocessor is input
here.

Remember that the OSD for Customer usage
such as the Channel numbers, clock, Main
Menu, etc.. is generated by the DM-1 Mod­ule.

Also, ABL controls the brightness and
Contrast; as well as the color level at this
chip.

The Velocity modulation control signal is
produced from the Rainforest IC. This signal
is a representative of the Peak White compo­nents of luminance and drives the Velocity
Modulation coils on each CRT.

Page 01-11

2 H VIDEO BLOCK DP-85

CHASSIS

2H VIDEO P.W.B.

OSD RGBABLI2C

YUV/YIQ/

Y PB PR

2.14 HV SYNC

YUV/YIQ/

Y PB PR

2.14 HV SYNC

+9V

+5V

DM-1

I/F

+5V -5V

RGB PROCESSOR

TA1276AN

Clamp H/V Blk.

YUV RGB

Y

YUV
YIQ
YPBPR

APL

DETECT

RGB

VM

SPANEL

Side Panel

APL

2.14 HV SYNC

CLAMP

GEN.

Clamp

HV. Blk.

Gen.

HBLK PH

HV Blk

+9V

2.14 SYNC

Page 01-12

BLOCK DIAGRAM EXPLANATION DEFLECTION BLOCK

The 61HDX98B deflection circuit differs from con­ventional Hitachi product. It utilizes in a sense, two
horizontal output circuits. One for Deflection and on
for High Voltage. The notations around the Block dia­gram will be described in a counter clock wise fashion
as best a possible.

CUT OFF:

Cut of collapses the Vertical circuit during I2C Bus
alignments, during CRT Set Up.

I2C:

Communication from the Sub Microprocessor I001
during sweep variations due to Standard/NTSC 480P
mode and 1080I High Definition mode.

ABL:

ABL voltage is generated by monitoring the current
through the flyback transformer. This voltage will
fluctuate down when the scene is bright and up when
the scene is dark. The ABL voltage will manipulate
the screen brightness and contrast to prevent blooming
under these conditions.

HV SYNC:

The composite sync is routed into the Sync processor
which determines the sweep condition for the signal
being provided.

H and V BLK:

Horizontal and Vertical Blanking is developed within
the Deflection circuit. The Horizontal Blanking pulse
operates around 13V P/P and is produced by taking a
sample pulse from the Deflection transformer T752.
The Vertical Blanking pulse is generated from the
Vertical output IC, I601 pin 7. This pulse normally
operates at 23V P/P.

IR:

The Infrared Pulses coming from the remote control
are routed through the Deflection PWB to the Digital
Convergence Unit. During DCAM (Digital Conver­gence Adjustment Mode), the Remote Control pro­vides manipulation pulses for the DCU.

DIG RGB BUSY:

This indicates Digital RGB and BUSY.
Digital RGB represents the on screen characters pro­duced by the DCU for generating the Digital Conver­gence adjustment grid and text produced during cer­tain conditions such as Magic Focus, Sensor Initializa­tion, Data Storage, etc…

Busy notifies the sub Microprocessor I901 which in
turn notifies the DM-1 module that the DCU has en­tered the DCAM. During this time, the DM-1 module
ignores the remote control commands.

MAGIC SW:

When the customer presses the Magic Focus button on
the front of the set, it produces a command for the
DCU to begin the Magic Focus process.

D SIZE:

Digital Size is a control signal for raster enlargement
when MAGIC FOCUS is operated. Raster enlarge­ment is required for the MAGIC FOCUS PATTERN
to hit the photo sensors.
This signal is output from DCU and input to the Sub
Microprocessor I901. The Sub Microprocessor con­trols the I702 on the DEF.SUB PWB) for enlarging
raster size.
In case of AP-85, this control signal is called "A.
SIZE". It's the same function between DIG.SIZE and
A.SIZE.

S WIDE:

Smooth Wide is a condition entered through the Menu
by the customer while watching an NTSC 4X3 aspect
video source and the customer wants to fill the screen.

TO CONVERGENCE YOKES:

The DCU provides compensation signal for deflection
abnormalities to the convergence output IC. The Con­vergence output IC in turn, amplify the signals and
rout them to the convergence yokes.

+26V, 26VP and RETRACE PULSE:

The positive 26V and the negative 26V is routed to the
Deflection transformer I752. They enter the trans­former as a pure DC voltage. A 15V P/P horizontal
pulse is added to the DC voltage and leaves as +26VP
and –26VP. From here these voltages are routed to the
Convergence output section and they are rectified.
They become +33V and -33V respectively. This proc­ess prevents the need for another power supply.

+B 130V:

The Deflection transformer receives the 130V V1 DC
source.

DF OUT:

Generated from the I702 on the Sub Deflection PWB
and the Horizontal Blanking pulses, a Dynamic Focus
waveform is created. This is a parabolic waveform that

Page 01-13

BLOCK DIAGRAM EXPLANATION DEFLECTION BLOCK

is superimposed upon the static focus voltage to com­pensate for beam shape abnormalities which occur on
the outside edges of the screen because the beam has
to travel further to those locations.

HV PARABOLA:
Described above.

SCREEN 700V: 700V Supplied to the screen grids on
the CRT’s.

FOCUS 9KV:
Focus voltage supplied to the CRT’s.

32Kv HV:
32,000 volts DC supplied to the CRT’s anodes.

TO DEFLECTION YOKES:

Horizontal and Vertical deflection wave forms driving
the deflection yokes.

INTERNAL BLOCKS DESCRIPTION

HV CONTROL:

The uPc1344C IC generates the horizontal drive signal
utilized by the High Voltage circuit. The HV control
IC receives it’s locking pulse from the Deflection cir­cuit. A feed back voltage is sampled from the High
Voltage Regulation Detector circuit and compared
with a reference voltage to maintain an accurate 32KV
on the CRT’s.

VERTICAL OUTPUT:

The vertical output utilized in the 61HDX98B operates
differently from previous chassis. This circuit utilizes
a +13V and a –13V to generate the waveform to drive
the vertical deflection yokes. A pump up circuit is util­ized to product the retrace pulse for the vertical deflec­tion yoke. It’s at this time when a higher pulse is
needed because the beam has to travel from the bottom
of the screen to the top very rapidly. The vertical out­put IC receives it’s trigger pulse from the ramp gen­erator.

SYNC PROCESSOR:

The Sync Processor located in I702 on the Sub Deflec­tion PWB, detects the horizontal sync rate for the dis­played signal, either 480P or 1080I.

VERTICAL RAMP GENERATOR:

I702 on the Sub Deflection PWB generates the Verti­cal Saw signal. This signal is controlled by several
factors. The Sync Processor detection and I2C data
communication.

DIST CONTROL:

Distortion control is another signal produce by I702
and sent to the Side Pin cushion circuit. These com­pensation parabolic wave forms are combined with the
horizontal circuit to compensate for Side pincushion
errors.

H-SIZE SIDE-PIN CONTROL:

This circuit generates the Side Pincushion Distortion
compensation pulse which is impressed onto a coil
located in the output side of the Deflection Output sec­tion and compensates for Pin Cushion distortion.

HORZ. DRIVE and HORZ. OUT:

This circuit comprises the Drive and Output for the
Deflection output circuit.

S-CORRECT (SMOOTH MODE):

During Smooth mode, the deflection circuit is manipu­lated so that the outside 1/3 of the picture is stretched
to fill the screen. The center 2/3 of the picture is left
undistorted. When an S Wide signal is received, a ca­pacitor is switched off on the output side of the De­flection output circuit.

PHOTO SENSOR:

There are 8 sensors located on the internal outside
edges of the cabinet. These Photo Cells receive the
light patterns being generated during MAGIC FOCUS
or SENSOR INITIALIZATION and deliver this volt­age to the Sensor Distribution circuit.

SENSOR DISTRIBUTION:

This represents the amplifiers that receive the Photo
receivers (Photo Cells) inputs during Magic Focus op­eration.

DIGITAL CONV. UNIT:

This is the Digital Convergence Unit. This is a non­repairable unit. It contains the distortion compensation
wave form generation circuits, RAM, ROM and D/A’s
for the convergence circuit.

SERVICE SWITCH:

When the set needs a convergence alignment, the Ser-

Page 01-14

BLOCK DIAGRAM EXPLANATION DEFLECTION BLOCK

vice Switch is pressed. This switch is located on the
deflection PWB. By removing the front speaker grill,
the Service Technician has access to this switch.

CONV. OUT:

The Convergence output block represents the two (2)
Convergence output IC’s. These two IC’s contain the
amplifiers for the Red, Green and Blue convergence
outputs.

HDT T752:

Represents the Deflection output transformer. By
separating the Deflection circuit from the High Volt­age, any distortions that would be generated by fluc­tuations within the High Voltage won’t be visible
within deflection.

DYNAMIC FOCUS OUT:

This circuit amplifies the parabolic signals provided
by the Deflection circuit and I702 on the Sub Deflec­tion PWB and impresses these wave forms onto the
static DC voltage use for focus. This keeps the beam
as sharp or focused as possible in the corners of the
screen.

HIGH VOLTAGE REGULATION DETECTOR:

This circuit monitors a feed back voltage produced
from the High Voltage Flyback transformer and routes
an output signal to two circuits.

1.) A sample voltage is sent to the Horizontal Driver
IC for regulation of the High Voltage and;

2.) If the High Voltage climbs too high, a shut down
signal is produced to shut down the power supply until
a repair can be made.

FOCUS PACK:

The focus pack receives the Focus voltage and the
High Voltage and distributes them to the CRT’s.

FBT TH01:
Is the main Flyback Transformer producing High
Voltage.

Page 01-15

Cut Off

I2C

HV Control

(uPC1344C)

DP-85 DEFLECTION BLOCK

HV DRIVE

(MC3415IP)

DIAGRAM

To Deflection YokesTo Deflection Yokes

HV OUT

(IMB12-140)

ABL

32Kv

HV

High Voltage
Transformer

HV Sync

V Blk

IR

Dig RGB

Busy

HV Blk

Page 01-16

ABL

H Blk

From uP

C

2

I

SYNC.

PROCESSOR

H Drive

PHOTO

SENSOR

/ 8

SENSOR

DISTRIBUTION

Magic SW

D Size

VERTICAL

OUT

LA7648

VERTICAL

RAMP

GEN.

Busy

Dig RGB

8
/

DC couple
/

S Corrected
V-SAW

H Blk

IR

DIGITAL

CONV.

UNIT

3

DIST.

CONTROL

HV Blk

6
/

V Parabola

Saw

Modulator

HORZ.
DRIVE

Size Regulation

Control

H-SIZE

+

Diode

(SMOOTH MODE)

SIDE-PIN

CONTROL

HORZ.

OUT

S-CORRECT

SERVICE

SWITCH

REGULATION

Vcp

S Wide

VOLTAGE

DETECTOR

Parabola

1100V

+26V,

HV

+

26V

FBT

THO1HIGH

FOCUS

PACK

Focus

12Kv

DYNAMIC

FOCUS OUT

2SC4686X3

Deflection Transformer

HDT

T752

+

CONV.

OUT

DF

Out

Retrace Pulse

34v, -34v

6
/

To Convergence

3

Focus

/

(9KV)
Screen

/

(700V)

3

+B (130V)

Yokes

S Wide

220V

12V

CPT P.W.B. (R)

VIDEO OUTPUT

AMP

DP-85 CRT PWB BLOCK DIAGRAM

Beam Shape, Beam Alignment,

Focus, VM Coil,

Deflection and Convergence Yokes

R

220V

12V

220V

12V

220V

26V

CPT P.W.B. (G)

VIDEO OUTPUT

AMP

CPT P.W.B. (B)

VIDEO OUTPUT

AMP

VM OUT P.W.B.

VM OUT

G

B

Page 01-17

RGB

VM

SCREEN

FOCUS CONV.

Def.

Yokes

30KV

HV

AUDIO OUTPUT SECTION DP-85

CHASSIS

To

Headphone

Jack

L/R

From DM-1

TL/TR

Fixed Vari

Out L/R

FR Ext

Out

FL Ext

Out

FR

to Spk

FL

+9V

-9V

DM-1

I/F

Headphone

Amp

+9V

+9V

Clock

Data

I2C

HL/R

HL/R

L/R LS/RS/C/LFE

TL/TR

CONTROL

Graphic Equalizer

Perfect

Volume

+9V

DM-1

I/F

L/R

RL/RR

PinP L/R

L/R

From

Audio/Video

Selector IC

+9V
9V

PinP L/R
From
Selector IC

L R

Front

Audio

Amp

26V

Center

Audio Amp

21V

Sub Woofer

Rear

R

Audio

L

Amp

FL/R

28V

Clock

Data

RL/RR

HP L/R

I2C

+9V

I2C

L/R

C

LFE

CONTROL

Graphic Equalizer

Headphone L/R

CONTROL

FL/FR
L/R
C/LFE

+9V

L+C

R+C

+9V

L/R

C

LS/RS

Page 01-18

DP-85 REAR PANEL (61HDX98B)

DSS IN

DM-1 MODULE

Rear Panel 1

SMART

CARD

SLOT

AC-3 Jack

Telephone

Interface

ANT B

ANT A

REAR SPEAKER

8 ONLY

+

R

-

-

R

+

INT.

EXT.

+

L

-

-

L

+

FRONT SPEAKER

8 ONLY

S-VIDEO S-VIDEO

VIDEO

(MONO)

VIDEO VIDEO

(MONO)

L

(MONO)

L

L

Page 01-19

TRANSMITTER

OUT

R L

R L

FIX/VARIABLE

OUT

LFE/SUB

WOOFER OUT

R

AUDIO AUDIO AUDIO

INPUT 1 INPUT 2

R

INPUT 3

R

DP-85 CHASSIS 4 MODES TO DISPLAY A (4x3) IMAGE ON (16X9) DISPLAY

DM-1 Module controls the video content for Normal, Full and Fill modes,

while the deflection circuit is manipulated for the Smooth Wide mode.

NORMAL MODE (4x3) FULL MODE (4x3)

Side PanelSide Panel

Normal Mode 4X3 with Black Mask (Linear)

FILL MODE (4x3)

Cropped

Slightly

above

black

to avoid

4X3

burning

an image

Full Mode 4X3 Stretched to fit (Non-Linear)

Stretched Stretched

SMOOTH WIDE MODE (4x3)

Linear

Linear

Page 01-20

Cropped

Fill Mode 4X3 Cropped (Linear)

Deflection Circuit remains at 33.75KHz for all modes, (NTSC & SDTV = 540P, HDTV = 1080I. (Labeled in schematic as 2.14H)

Smooth Wide Mode 4X3 Center (Linear)

Outside edges Stretched to fit (Non-Linear)

DP-85 DIGITAL CIRCUIT POWER SUPPLY SHUTDOWN BLOCK

I901

ShutDown Pin (7)

I905

on Power Supply

7 3 2

Photocoupler

Driver &

Output IC

Shut Down SCR

+5V Short Det.+3.3V Short Det.

+9V Short Det.-5V Loss Det.

+3.3Vs Too Hi Det.+5V Too Hi Det.

+5Vs Too Hi Det.+9V Too Hi Det.

+12VS Too Hi Det.D3.3V Too Hi Det.

Page 02-01

DP-85 DIGITAL CIRCUIT POWER SUPPLY SHUTDOWN DIAGRAM

DIGITAL & SIGNAL

I901

ShutDown Pin (7)

on Power Supply

Driver &

Output IC

5

R907

D905

POWER SUPPLY SHUT-DOWN
Active High

7 3 2

I905

Photocoupler

D908

Run B+

R919

Red LED
Shut Down
Identification

DIGITAL & SIGNAL
POWER SUPPLY SHUT-DOWN
Active Low

Q913

ShutDown

S.C.R.

TV 5V Short Det.

R908

D964

1/2 AC In

Start Up B+

NOTE: +12VS is the same as A12V and STBY12V

No Start Up B+ = Off
Normal = Glowing
Blinks during Shutdown because
of the internal current draw.

15.1V ~ 22.5V pin 5 I901

-5V Loss Det.

R975

-5VS
R976

+5VS

D974

TV 5V Too Hi Det.

+5V +3.3Vs

Q917

D972

+5V

D925

+9V

TV 9V Short Det.

On

STBY +12V

Off

R9A

0

E C

B

Vcc

Q916

D958

On

D953D952

Off

Q914

B

Off

PQS1

Power5

On

C

E

D934

+3.3V Too Hi Det.

TV 9V Too Hi Det.

D3.3V Too Hi Det.

+9V

D3.3V

D975

D938

D933

D936

+5Vs

+12VS

+5V Too Hi Det.

+12VS Too Hi Det.

Page 02-02

Audio

F/R 28V

R927

DP-85 CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES

(SUB POWER PWB) DIGITAL POWER SUPPLY 10 GREEN L.E.D.s and 1 RED L.E.D.

(11 Total L.E.Ds. for visual trouble sensing observation)

LNB Power

Audio

Center 21V

R928

TV 9V

R945

TV 5V

R9E3

+12VS

R956

13V/19V

R939

+5VS

R965

-5VS

+3.3VS

R966

D3.3V

R972

R969

D919

D908 is a RED L.E.D.

Off = No I901 B+
On (Mid) = I901 B+
On (Bright) = Shutdown

Page 02-03

D920

D908

R919

D930

Osc B+

1.9V

D971

ALL GREEN L.E.D.s

D928 D924

Start Up or Run

24.2V

5

I901

Driver/Output IC

100% Dead Time &

7

IC B+ Detection

R916

D943

24.2V

1.9V

D962 D945

D947

Vcc

I905

4

3

I905 Shutdown

Photocoupler

12 Shut Down

Inputs

1

2

Q913

Shutdown

SCR

DP-85 DIGITAL CIRCUIT POWER SUPPLY DISTRIBUTION DIAGRAM

Page 02-04

AC Plug

AC Input

FUSE

F901

Noise Filter

L901, 2, 3

Rectifier

D901

Protector
E992: 7K

Switching

Control

I901

D908:

Protect Red LED

To

Deflection

Power Supply

Protection

Block

Live Cold

Switching

Transformer

T901

Feedback

I904

Protect

I905

AC Clock

I906

RELAY

S901

Relay

S902

Relay

S903

DP86

Only

AC Clock

60Hz

Protector

E994 : 7K

Protector

E995 : 7K

Protector

E996 : 5K

Voltage
Control

24, 5V

Q915

Rectifier

+28V : D911

Rectifier

+21V : D912

Rectifier

+35V : D918

Rectifier

+24V, 5:D914

TV ON/OFF

Switch

Q914, Q918

TV Main ON/OFF

ON = LO
OFF = Hi

D919 : F28

D920 : C21

A12V

Regulator
+12 : I907

Regulator

TV9V : I908

Regulator

TV5V : I914

Protector

SCR: Q913

= RED OR GREEN L.E.D.

STAND BY +12V

D928 : +12V

D930 : TV9V

D971 : TV5V

Short Circuit

Detector

REAR +28V

CENTER +21V

D

D

"D"

D925:

<4V

D925:

<4V

Audio

+28V

Audio
+21V

33VS :

D936 : >14.7V

ZD

D975 : >10.8V

ZD

D933 : >6.7V

ZD

Over

Voltage

Detector

+33V

+12VS

+9V

+5V

DP-85 DEFLECTION POWER SUPPLY SHUTDOWN

BLOCK DIAGRAM

IP01

ShutDown Pin (7)

on Power Supply

Driver &

Output IC

220V Short Det.

Heater

Short Det.

13V

Short Det.

28V Short Det.

Deflection B+ (130V)

Excessive Current Det.

IP06

Photocoupler

QP06

QP05

ShutDown

S.C.R.

DP25

Heater Too

High Det.

-M13V

Loss Det.

-M28V

Loss Det

Deflection B+ (130V)

Excessive Voltage Det.

DP23

DP34

X-RAY

PROTECT

Flyback

Excessive

Current Det.

Heater Loss

Det.

Excessive

High Voltage

Det.

Deflection

Transformer

Failure Det.

Side Pin

Failure Low

Det.

Q754

Side Pin

Failure High

Det.

High Voltage

Stability Too

High Det.

Page 02-05

DP-85 DEFLECTION POWER SUPPLY SHUTDOWN DIAGRAM

TP91

DP11

13

CP16

IP01

ShutDown Pin (7)

on Power Supply

Driver &

Output IC

200V Short Det.

DP37

220V

Heater

DP36

DP35 ?

QP04

RP31

0.47

DP17

DP19

IP06

Photocoupler

Excessive High

Voltage Det.

DP35 May Not Be in Set.

Deflection B+ (130V)

Excessive Current Det.

DP18

DP23

QP05

ShutDown

S.C.R.

DP25

DP34

Deflection B+ 130V

Deflection B+ (130V)

Excessive Voltage Det.

Deflection Flyback

Excessive Current Det.

Flyback

TH01

9

QH03

10

DH24

5

DH31

QH07

DH30

RH23

1.2

Heater
DH25
DH26

DH27

Heater Loss Det.

Doesn't
go to
CRT's

DP30

13V

DP31

28V

DP27

DP26

RP45 RP44

-M28V

-28V Loss Det. -13V Loss Det.

+28V

Deflection B+ 130V V1

DP29

DP28

RP41 RP40

-M13V

Q777

QP06

13V Short Det.

28V Short Det.

+13V

6
1

DP33

DP32

Heater from Def. Power Supply. Goes
to CRT's

Heater To High Det.

7
8

T752

H.Blk

X-RAY

PROTECT

RP42

D759

C769

QH06

High Voltage Stability Too

D753

D757

Deflection Transformer

D754

Q754

D756

Inoperative Det.

High Det.

Side Pin Failure High

Det.

D760

Side Pin

Failure

Low Det.

Page 02-06

13V

DP-85 CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES

DEFLECTION PWB 5 GREEN L.E.D.s and 1 RED L.E.D.

(6 Total L.E.Ds. for visual trouble sensing observation)

130V

+28V

Deflection B+

RP39

-M28V-M13V

DP06 is a RED L.E.D.

Off = No IP01 B+
On (Mid) = IP01 B+
On (Bright) = Shutdown

Page 02-07

RP23

DP15

RP17

DP06

Osc B+

1.9V

RP37

ALL GREEN L.E.D.s

Start Up or Run

24.2V

5

IP01

Driver/Output IC

100% Dead Time &

7

IC B+ Detection

RP38

RP60

24.2V

1.9V

RP26

DP16DP22DP20

4

3

Vcc

IP06

IP06 Shutdown

Photocoupler

16 Shut Down

Inputs

RP46

DP21

1

2

QP05

Shutdown

SCR

DP-85 DEFLECTION POWER SUPPLY DISTRIBUTION DIAGRAM

Page 02-08

Power Supply

Block

Protector

EP91: 4K

Switching

Control

IP01

DP06:

Protect

Red LED

Live Cold

Switching

Transformer

TP91

Feedback

IP05

Protect

IP06

Protector

EP92: 4K

Protector

EP93: 5K

Protector

EP94: 7K

Protector

EP95: 7K

Protector

EP96: 7K

Protector

EP97: 7K

Voltage Control

+130V: IP04

Rectifier

+220V:DP07

Rectifier

+7V:DP08

Rectifier

+15V:DP09

Rectifier

+15V:DP10

Rectifier

+28V:DP12

Rectifier

-28V:DP13

Rectifier

+130V:DP11

Regulator

+6.3V: IP02

Regulator

+13V: IP03

Regulator

-13V: QP01

Protector

EP96: 7K

Protector

SCR: QP05

DP36,

DP37:<4V

D

DP35: <4V DP32: >7.4V

D

DP15: +13V DP30: <5V

D

DP16: M-13V DP28: > -13V

D

DP20: +28V DP31: <5V

D

DP21: -28V

DP22: +130V QP04: >1.4V

Protect In

DP25: >-24V

D

D

Short

Circuit

Detector

On/Off

Over

Voltage

Detector

Power

ZD

DP28: >20V

ZD

DP26:

>32V

ZD

DP18:

>166

V

ZD

HVcc

Switch

QP08

Video

+220V

Heater

+6.3V

Vert/HVcc:

+13V

Vert:

-13V

Conver:

+28V

Conver:

-28V

Deflection

+130V

HVcc
+12V

DP-85 Deflection

Circuit Protection

DM-1

Module

Power On/Off

by Remote or

Front Pannel

DP-85 DEFLECTION Vcc PRODUCTION CIRCUIT

PQD2

From I907 A12V Reg.

5

5

I001

Slave Micro

Power On/Off

Q007

53

Power ON

Driver

(Relay Driver)

A12V

PQS1

Other Power
On/Off Circuits

3

DEFLECTION PWBSUB POWER PWBSIGNAL PWB

A12V or STBY +12V

Start Up Power

QP08

23

3

I702

DVccVRef-In

I701

5V Reg.

I703

Comp.

1

1
2

DP41

1

PDD1

8

SUB DEFLECTION PWB

Run Power

RP66

13V

From IP03

13V Reg.

Page 02-09

DP-85 SERIES CHASSIS HORIZONTAL DRIVE

CIRCUIT

Q701

PDD1

7

9

To I001 OSD

Position

To PinP

Unit

I702

H Out

18 16

29

FBP In

17

26

PSD2

6

H.Blk.

AVCC
Switched AVCC

Osc.

H. Sync In

Q751

Q755

To Convergence Circuit

To Sweep Loss Det. Circuit

C770

C771

IH01

Q1

A1

1

28V

12

T751

3
1

10

6
4

Osc

Q777

130V V1

IH02

Drive

H. Def. Yoke R

H. Def. Yoke G

H. Def. Yoke B

T752

1
6

QH08 QH01

7
8

H Pulse

11

12

9

10

QH09

Def.

+28V

+28P

M28V

M28P

7

To Side Pin Circuit

To Dynamic Focus

To Deflection Loss

To X-Ray Protect

130V V2

TH01

9

High
Voltage

10

Page 03-01

12

13

Clamp

E

QH10

14

1

Ref. V.

FBP In

QH05

QH04

HV Sample

12

QH06

HV Sample too High
X-Ray Protect

r
r

o

r

DP-85 SERIES CHASSIS VIDEO SIGNAL PATH (Main & Terminal)

V1

Aux Inputs

V2

V3

4V

Avx 4 In

S-4 In

PinP TUNER (Mono)

S-1 In

S-2 In

Front Control PWB

DM-1

Digital Control Center

U001

Always PinP

S Det.

Aux Input 4

PMT1

Signal PWB

20

S Det.

S Det.

Terminal PWB

2

S-Y4

S-C4

Q202

PST1

3

S-Y1

S-C1

S-Y2

S-C2

PFV

8

5
3

I201

3

+

-

2

PinP Video

Terminal

PWB

1

20

21
23

5

3

7
9

11
13
15

17
50

Main Video
NTSC

I301

Yout1

Cout1

Lum/Audio
Selector IC

PinP V Out

36

44
42

Q035

Q301

3DY

Q302

3DC

Q039

PST1

11
13

Q034

6

C In

40

Y In

20

3
2

PMZ

I008

Y Out

I009

+

-

PCX

11
13

9
7

B-Y

Out

R-Y

Out

PST2

Comp/S-Y
S-C

3DY
3DC

Y1 In

29

B-Y1 In

30

R-Y1 In

31

21

22

1

PMS2

1

Q041

Q040

3DYC

Comb

Filter

I011

3

+

-

2

I010

3

+

-

2

U002

11

5

6
7

1

1

PinP V
Y
I
Q

PinP
Unit

Page 04-01

PZC

B

1

To CRT PWB

G

3

R

5

Signal Sub PWB

QX23

QX28

QX33

41

42

43

IX01

Rainforest

IC

53

51

52

Y

V/PR

U/PB

QX07

QX08

QX09

V/PR

U/PB

IX02

Y

1

QX01

3

+

-

2

Y

1

14

Y

DM1

IX03

1

1

QX03

3

+

-

2

QX05

3

+

-

2

V/PR

U/PB

3

5

PWB

ATSC/

NTSC

12

10

V (Cr)

U (Cb)

DP-85 CHASSIS A.B.L. CIRCUIT DIAGRAM

See uP

Data

Signal

Path

PSZ2

RX78

RX79

QX14

RX80

9V

DX02

RX82

ABL

9

DX01

CX21

CX20

RX81

CX24

CX39

PSZ1

SDA2

16

SCL2

17 28

RH22

High Voltage B+

130V V2

QH03

See XRay Protect

RH23

CH18

Collector of Horz.

Output Transistor

Rainforest

45

27

SDA2

SCL2

To QH01

IX01

IC

B+

C

TH01

Signal Sub

PWB

To Anodes

To

Focus

ABL

3

Page 04-02

Signal

PWB

PSD2

1

ABL Pull-Up Resistors

Deflection PWB

Deflection B+ 130V

V1

[ Current Path ]

13V

RH59RH58

Clamp

As Brightness goes Up, ABL Voltage goes Down. (Inverse Proportional)

CH25

RH56

DH33

DP-85 SWEEP & AC LOSS DETECTION CIRCUIT

12V

Vertical

Blanking

From

Pin 9 I601

V. Blk.

24V P/P

Horizontal

Blanking

From

Q755 Emitter

CN04

H. Blk.

11.6V P/P

SPOT

From Pin 9

of Micro I001

Cut Off

Vertical

Output IC

I601

Invert Input

Non Invert

Input

5V

CN01

R604

R605

QN01

RN01

RN02

CN03

QN05

RN11

RN12

PSD

2

2

3

Vert SAW

R602

5

4

Q601

Q602

Stops Vertical Drive
during Cut Off
adjustment, I2C

RN03

12V

RN10

RN09

DN04
DN05

Prevents CRT Burn

Q610

RN04

DN01

CN02

QN03

DN06
RN13

Spot Inhibit

QN07

RN06

8.57V

DN02

DN03

RN07

0V

RN08

DN11

RN16

RN15

CN05

DN07

9.72V

RN17

QN02

12V

8.57V

CN06

RN05

QN04

DN16

DN14

DN09

DN10

QN06

Horz. 13V Loss/

Start Up Spot Killer

QH02

14

1

13 Error Out

12

7

Stops High Voltage
Drive Signals From
being produced
during 13V start up

RN14

DN08

RN17

RH40

High Voltage

Driver IC

IH02

Reference
Feed Back

Error In

Drive

From I906 Pin 3

AC Photo Coupler

10V P/

P

ACK 5V

RN18

Page 04-03

DP-85 SERIES CHASSIS AUDIO SIGNAL PATH

(Main, Terminal & Audio Output)

Page 05-01

4L

Avx 4 In

4R

NOTE: The J31101 Lum type connector Pins are

Aux Input 4

opposite of PMT1. They are correct here.

Front Control PWB

DM-1

Digital Control Center

I001

Microprocessor

Signal PWB 1 of 2

Surround PWB 2 of 2

Left Rear Spk Jack

Right Rear Spk Jack
External Right Spk Jack

External Left Spk Jack

Front Left Spk

Front Right Spk

PL

2

PR

2

Int.

Spk.

SS01

Center Spk

J31101

SCL1

47

SDA1

43

Ext.
Spk.

2

5

PMT1

7

4

PST3

5
4

PSP1

5
7

1

3

PCL

2

PFV

8
7

L-Audio (NTSC)

R-Audio (NTSC)

Terminal PWB

Rear Left
Rear Right

12

I401

FT/

Audio

Output

7

IC

Center

Terminal PWB

I202

3

+

-

2
5

+

-

6

2
4

11

12

1

7

SCL1

SDA1

Front Left
Front Right

I402

Center Audio

Output IC

20
22

Lum/Audio
Selector IC

6

Main Audio

4

27
26

Rear Output IC

12

I403

7

Q403

2

11

I301

Main Audio

PinP

Audio

Out

PinP

Audio

In

2
4

11

D414
D415

Q407

8

AVX 1

10
14

AVX 2

16
51

AVX 3

49

PST1

45
43

L

35

R

33

1
3

Audio Output PWB

D420
D421

Mute (PAS1 Pin 5)

D426
D427

Center Speaker Off
(PAS1 Pin 2)

Q411

Front Speaker Off (PAS1 Pin 1)

Mute (PAS1 Pin 5)

Left Total

10

Right Total

11

PinP Left

13

PinP Right

14

1

Mono PinP

Rear Speaker Off (PAS1 Pin 3)

Mute (PAS1 Pin 5)

Main Audio

Signal PWB

Left Select

Right Select

Signal PWB

2 of 2

20

PinP Tuner

Rear Left

Rear Right

F L Out
F R Out

LFE/SW

Sub Woofer

Center

1L
1R

2L
2R

3L
3R

PSU1

1
2

9

10

PAS2

8
9

1
2

4

6

Aux Inputs

(See Surround Audio Signal Path)

(See Surround Audio Signal Path)

Right
Front

Left

Front

PAS2

2

1

DP85 SURROUND AUDIO SIGNAL

PATH

ISO1

Ft\

30
28

PinP Audio

PSU1

10

9

R
L

See Main Audio
Selector/Signal
PWB

Trans-

mitter

Audio

Cont

Rt

2

Selected Audio
Lt

1

Selected Audio

10

1

ISO8

Perfect

Volume

8

3

QS03 QS04

13
20

QS01 QS12

Transmitter
Out Jacks

FL/FR/RL/RR/PinP L/R

IG01

R

L

15

18

23

10

1

7

3

+

L Ft

-

2

R Ft

5

+

-

6

MAIN AUDIO

NOTE:
The connector Pins on
the DM-1 are backwards
compared to PMS1.

PMS1

R

1

1

3

L

1

3
2

3
2

IS10

+

-

IS09

+

-

Right
Total
In

Left
Total
In

MODULE

DM-1

To Audio Output PWB

Fixed/Vari

Audio Out L

Fixed/Vari

Audio Out R

Sub Woofer

LFE/

6

Sw

Center

4

To Audio Output PWB

R Ft + Center

L Ft + Center

Rear Right

Rear Left

QS13

LFE/Sw

IS12

1

7

Center

32

1

QS07QS08

QS09QS10

+

-

+

-

Center

3
2
5
6

13

CENT/LFE

20

15

18

Graphic EQ

ISO2

Mix/Vari

Audio

Cont.

R Ft

L Ft

R Ft

L Ft

5

3

1

32

1

IG15

Graphic EQ

LFE

(Sub Woofer)

Center

R Ft

L Ft

3

+

-

2

1

7

7

1

Center

IS07

IS05

LFE
(Sub

5

3

+

-

2
5

+

-

6

5

+

-

6
3

+

-

2

7

15

13

Woofer)

Center

R Ft
(Right
Front)

L Ft
(Left
Front)

MODULE

DM-1

9

10

Rear Right

Rear Left

5
6
3
2

IS04

+

-

+

-

7

1

2
3
6
5

IS06

IS11

+

-

+

-

Right

5

+

-

6
3

+

-

2

11

9

Rear

Left
Rear

PHP

1

7

1

3

To
Head
Phone
Jacks

R Ft +

7

1

Center

L Ft +

Center

Rear Right

Rear Left

32

1

15

18

ISO3

Rear/
Head-

Phone

Audio

Cont.

5

3

20

R R

L R

HPL

HPR

13

Page 05-02

DP-85 Series Chassis AUDIO and VIDEO MUTE Circuit

Also see Mute Circuit Diagram (Surround and Audio Output PWB)

I001

V MUTE

Micro

Processor

MUTE

56

10

A5V

RO10

RO52

RO51

R145

D009

9V

A12V

RO93

Q022

RO92

D008

Mute 2

D010

R095

RO70

R094

Q008

PSD2

6

R096

R097

D011

C012

R098

V. Mute

"SPOT"

Horizontal & Vertical

Sweep Loss Det.

AC Loss Det.

(From Deflection PWB)

Q009

R099

Q010

V Mute 2

V Mute

Mute

2H Video PWB

From QZ13 and IZ07

HVBlk

PSZ2

Spot

14

DX05

PZC

7

PZC

7

Spot

Grounds Bias to Q8A3,

PSU1

16

V Mute 2

15

Mute 2

Rainforest

IX01

RY04

CRT PWBs

Q853 & Q803

Surround PWB

25

FBP
In

Page 05-03

Signal PWB

DP-85 MUTE CIRCUIT DIAGRAM (SURROUND PWB)

Also see Audio and Video Mute Circuit Diagram

Also see Mute Circuit Diagram (Audio Output PWB)

VMUTE2

MUTE2

PSU1

16

15

Transmiter Right

DS20 DS21

Transmiter Left

DS22 DS23

Fixed/Variable Right

DS24 DS25

VMUTE2

Fixed/Variable

DS26 DS27

Left

QS05

RSC6

QS06

RSC7

QS11

RSF4

QS12

RSC4

RSC5

RSF2

RSF3

CS86RSH3CS73

CS87RSH4CS74

CS84RSH1CS77

CS85RSH2CS78

Transmiter Right
Out

Transmiter Left
Out

Fixed/Variable
Right Out

Fixed/Variable
Left Out

MUTE2

DS28

DS29

PSA1

VMUTE2

MUTE2 MUTE

4

5

VMUTE

LFE/Sub

Woofer

DS30

RSF5

QS14

RSF9

See Audio

Output Mute

Circuit

Diagram

RSF8

CS83CS82

LFE/Sub
Woofer Out

Page 05-04

DP-85 MUTE CIRCUIT DIAGRAM (AUDIO OUTPUT PWB)

Also see Audio and Video Mute Circuit Diagram
Also see Mute Circuit Diagram (Surround PWB)

MUTE

Ft Spk Off

VMUTE 4

PAS1

5

1

D412

D413

D414

D415

D424

Front Right

Front Left

R418

C409

Rear Right

R415

Q401

R416

Q402

R417

Q403

Q409

R448

R412C401

R413C402

R444C440

R420

C403

R414

C404

R415

C442

R446

4

2

11

C409

4

Front
Right

Front Audio

Output IC

Front
Left

Mute

Rear
Right

Rear Audio

Output IC

I401

I403

Rear Spk

Off

Center

Spk Off

R413C402

Rear Left

C404

Rear

2

Left

Q410

3

D425

D426

D427

D418

R450

C447

Rear Left

R451

R449

Q411

R452

R431C423

Q406

2

D419

D420

D421

R436

C429

R437

R449

Q407

R438

R447

C425

R433

11

C448

2

11

C430

Mute

Center Audio Output IC

I402

Center

Center Audio

Output IC

Mute

Page 05-05

DP-85 CHASSIS "DIGITAL CONVERGENCE" INTERCONNECTION CIRCUIT DIAGRAM

DM-1

2 4

9

5V

2

HMO1

IR Receiver

3

Ft. Control

Sensor

8 Total

Page 06-01

Sensors

PMF

1

QM05

PWB

PWB

LED

S0-S7

12
11
10

9

3
4
5
6

IR In

7

Out

QM01

I002

PMS2

IR

PFS

2

Memory

IP

IR

Out

I001
Main Up

19
23
17
21

57

Busy

44 Auto Conv. Sw.

Q002

PSD4

1
2
3
4
5
6
7

PDS1

+5V

1

N/C

2

Gnd

3

Gnd

4

S7

5

S6

6

S5

7

S4

8

S3

9

S2

10

S1

11

S0

12

OSD B

OSD G

OSD R

+5V

Deflection PWB

BUSY
OSD R
IR-In

OSDG
ADJ
OSDB

STAT

Adj B

42

Adj G

43

Adj R

54

OSD Blk

51

Busy 2

Signal PWB

SK01

"DCAM" Digital
Convergence Mode

QK0

6

QK0

7

QK0

8

5V Digital

Deflection PWB

Adj B

Dig OSD B

Adj G

Dig OSD G

Adj R

Dig OSD R

+5V SRAM

10

9
4
5
1

2
12
13

-5V

+5V

HBlk
D Size
V Sync

1 of 2 PDS

Gnd

S7
S6
S5
S4
S3
S2
S1
S0

B

I105

G

R

OSD Blk

1

PDG

2
3
4
5
6
7
8

9
10
11
12
13
14
15

UKDG

HC2111ASY

Convergence

"DCU"

"Mounted on

Deflection

1

2

3

4

5

6

7

8

9
10
11

D/H OSD Sel

BTX

8

GTX

6

RTX

3

OSD

11

Digital

Unit

PWB"

Q012

Q013

Q014

Q011

Blk

Signal PWB

PDS 2of 2

12
13
14
15
16
17
18
19
20

PSZ1

BV
BH

Gnd

GV
GH

Gnd

RV
RH

Mute

IK02

OSD B

13

OSD G

12

OSD R

11

OSD Blk

Normal

"Lo"

1

2

3

QX17

+27P
+33V

QX16

+28V

I501

33

Rainforest

34

QX15

35

3214

10

BV

5

15 16

IK05

BH

14

GH

6

817 12

817 12

GV

15 16

IK04

RV

14 13

RH

6 7

10 5

+27P +33V

Deflection PWB

PZC

QX33

QX28

5

B

To CRTs

3

G

41

42

QX23

43

1

R

To Blue Convergence Yokes

PCB

CYV+

CYV­CYH+

CYH-

CYH+

CYH-

CYV-

CYV+

CYH+

CYH-

CYH-

2

1
4

3

PCG

4

To Green Convergence Yokes To Red Convergence Yokes

1

1

2

PCR

2

1
4

3

18

-

+

11

-

+

13

9

-

+

+

+

+

7

4

-33V-27P

4

18

-

11

-

CYH+

8

-

DIGITAL CONVERGENCE OVERLAY AND MAGIC FOCUS

4 MODES TO DISPLAY A (4x3) IMAGE ON (16X9) DISPLAY

1

NORMAL MODE (4x3) FULL MODE (4x3)

Normal Mode 4X3 with Black Mask

DIGITAL CONVERGENCE ALIGNMENT

When performing a complete
Digital Convergence Alignment,
it is necessary to utilize an Overlay.

The 61HDX98B will require 2 (two)
different overlays.

One overlay will be utilized for any of the following:

1.) Normal mode

2.) Full mode

3.) Fill mode

(Liner)

3

FILL MODE (4x3)

2

Full Mode 4X3 Stretched to fit (Non-

Liner)

Cropped

And a different overlay will be utilized for:

4.) Smooth Wide Mode

After completion of Digital Convergence Alignment,
Memory Store must be performed. After Memory
Store, Sensor Initialization must be performed as
well.
Sensor Initialization must be performed after
the Digital Convergence alignment data is STORED
for any one of the following modes:

1.) Normal mode

2.) Full mode

3.) Fill mode

Also, Sensor Initialization must be performed after
the Digital Convergence alignment data is STORED
for the following

4.) Smooth Wide Mode mode

MAGIC FOCUS (AUTO DIGITAL CONVERGENCE)
Customer's function

When the customer presses the magic focus button,
it will be necessary for them to perform Magic Focus
in similar fashion.
Pressing Magic Focus will correct any one of the
following Modes:

1.) Normal mode

2.) Full mode

3.) Fill mode

Cropped

4

Fill Mode 4X3 Cropped

(Liner)

SMOOTH WIDE MODE

(4x3)

Liner

Liner

Magic Focus must also be pressed for:

4.) Smooth Wide Mode mode

Deflection Circuit remains at 23.75KHz for all modes, even HDTV 16X9. (Labeled in schematic as 2.14H)

Stretched Stretched

Smooth Wide Mode 4X3 Center (Liner) Outside edges Stretched to fit (Non-

Liner)

Page 06-02

DIGITAL CONVERGENCE OVERLAY DIMENSIONS

20 88 113.4 2088113.4113.4113.4113.4113.4113.4113.4
41
49

97

97

DIGITAL CONVERGENCE OVERLAY FULL MODE

1350

H. SIZE

97

97

97

97

49
41

46.7

47.8

95.5

26 119 269511910710710710410411495

BR

762

Centering Offset

Part Number H312182A

V. SIZE

DIGITAL CONVERGENCE OVERLAY SMOOTH MODE

1350

H. SIZE

95.5

95.5

95.5

95.5

95.5

47.8

46.7

BR

762

Centering Offset

Part Number H312221

V. SIZE

Page 06-03

DP85 SERIES CHASSIS "CLU-614MP" REMOTE CONTROL

REMOTE PERSONALITY WHILE IN THE

DIGITAL CONVERGENCE ADJUSTMENT MODE D.C.A.M.

To Clear R.A.M. data.

*

Turn set OFF.
Press and hold the Service Button on
deflection P.W.B. Then Power
Button.

POWER

D.C.A.M.

Digital convergence adjustment
mode

"PIP" = "ROM READ"

Reads old R.O.M. data.

(Last data stored in R.O.M.

(Press 2 times)

"PIP CH" = "INITIALIZE"

Perform after

STORE & before EXIT

[SWAP + PIP CH]

"ANT" = "PHASE"

*

(Aligns Cursor to Grid)

"INFO" = "CALCULATION"

(Calculates mid-points)

"MENU" = "REMOVE COLOR"

Removes color

not being adjusted.

(Will NOT remove GREEN )

"USER" ="GREEN adjust"

Digital Cursor Blinks GREEN

3x3 adjustment mode

*

(Press 5 times), can only be

entered when R.A.M. is cleared.

"MOVES DIGITAL CURSOR"

Moves Adjustment Point

(2) Up, (4) Left,

(5) Down, (6) Right

"INPUT" = "BLUE adjust"

Digital Cursor Blinks BLUE

13 x 9 adjustment mode

(Press 5 times)

TV SATCABLE

DTV/SAT

PIP CH M OVEANT

LAST

MUTE

VOL CH

INFO EXIT

GUIDE

USER HELP

MENU

FAV

CH

SVCS SCHED

REC SELECT

1

4

7

2
5

8

SWAPPIP

TV / CABLE / SAT

V C R

AUDIO

FAV

CH

3

6

9

C.S.INPUT

0

HITACHI

CLU-614MP

"SWAP" = "ROM WRITE"

(STORE)

Stores data into R.O.M..

(Press 2 times)

"MOVE" = "RASTER ADJ"

Used to align Red and Blue

raster with Green.

(2 Additional lines will Appear)

"EXIT" = "ENTER & EXIT"

Enter or Exit the D.C.A.M.

Must initially enter D.C.A.M. with

Service Button on chassis.

L

I
G
H
T

Toggles between External Video

and Internally generated Cross

hatch. After exiting the DCAM,

(Press 5X)

set can change channels or

external video source.

"CURSOR KEYS" =

"(ADJUSTMENT)"

Adjust the selected color at

the current stopping position.
Up
Down
Left
Right

" 0 " = "RED adjust"

Digital Cursor Blinks RED

7x5 adjustment mode

(Press 5 times)

PAGE 06-04

DP-85 CHASSIS SLAVE MICROPROCESSOR I-001 PIN/PORT DESCRIPTION

Pin No. ID Port Identification Function Active

1 HSYNC OSD H. Pulse Receives Horizontal Blanking pulses 5VP/P for Service OSD positioning Pulse
2 VSYNC OSD V.Pulse Receives Vertical Blanking pulses 5VP/P for Service OSD positioning Pulse
3 AD4 AFC Receives the AFC S-Curve signal produced by the PinP tuner indicating the accuracy of the PinP tuning. Signal

5 TIM2 PIP Sync Det Detection of PinP Tuner Sync for Auto Programming and AFC Low
6 P43 AC (50/60 Hz) Detection of A/C line frequency from Schmitt Amp Q015 and Q016 Pulse
7 AD3 Side Panel APL Timing Pulse input for OSD creation of Side Panels Pulse
8 AD2 Dimmer (Not Used) n/a

9 P26 V.STOP Cutoff. This output Stops the Vertical circuit and shuts off the Spot circuit High
10 P27 CH Change Mute Mutes Audio through Q022 to Surround PWB during channel change High
11 PWM4 H.BLK-HP Outputs a control signal to the RC network attached to IZ06 controlling the phase of the Side Pannel pulses. High

12 P50 MAIN/PinP Outputs a control signal to I012 for selection of Main Sync or PinP Sync. High
13 P01 SCL Clock for the EEPROM Data
14 P47 Smooth Wide Outputs control signal to Q753 and I751 to switch deflection to Smooth Wide High
15 P02 SDA Data for the EEPROM Data
16 P51 4:3 When Fill, Full or Smooth Wide mode is selected in NTSC, output high to prevent generation of Mask Pulse

17 SIN Tx Data output from Slave Micro to DM-1 module Data
18 N/A N/A No Connection

19 INT1 Request Request data from/to the DM-1 Module Data
20 N/A N/A No Connection

21 SOUT Rx Data input from DM-1 module to Slave Micro Data
22 N/A N/A No Connection

23 SCLK Clock Clock for the DM-1 data transmission Data
24 Avcc Avcc +5V

25 HLF HLF
26 RVCO TRVCO Resistive Fixed
27 VHOLD VHOLD Fixed by Capacitor
28 CVIN C. Video Input Input for Composite Video for Closed Caption detection. However, the DM-1 module actually generates the Closed Caption charac-

29 CNVSS CNVSS
30 OSC In OSC in
31 OSC Out OSC Out
32 VSS Ground Ground
33 Vcc Vcc +5V
34 OSC In OSC In

Page 07-01

35 OSC Out OSC Out

since no side panels are used.

ters.

High

Signal

DP-85 CHASSIS SLAVE MICROPROCESSOR I-001 PIN/PORT DESCRIPTION

Pin No. ID Port Identification Function Active

36 CVIN Reset Reset active Low. Reset by I003 during first AC power application and by Q026 when the DM-1 module resets the Slave Microproc-

37 P31 CLOCK Clock for the PinP Tuner data communications Data
38 P30 DATA Data for the PinP Tuner for Channel change, Programmable Divider, band selection, etc.. Data

39 P03 ENABLE Enables the reception of data by the PinP Tuner Data
40 P16 Headphone SEL Det Active Low detects the insertion of the Headphone Jack Low
41 P15 LOCK Notifies the Slave Micro by a Low, when the PinP tuner PLL Phase Detector is locked Low
42 SDA2 SDA Data for controlling the 1H Video, 2.14 Video Processor, PinP, LFE/Center Audio Control, Headphone/Rear Audio Control, 3DYC

43 SDA1 SDA Data for the PinP/Front audio controller and AV switch IC Data
44 P67 Auto

Convergence SW

45 SCL2 SCL Clock for controlling the 1H Video/Chroma, 2.14 Video Processor, PinP, LFE/Center Audio Control, Headphone/Rear Audio Control,

46 P66 P.BLK. (Not Used) n/a
47 SCL1 SCL Clock for the PinP/Front audio controller and AV switch IC Data
48 P65 Data Data to control the Front L/R and Center Graphic Equalizer Data
49 P10 KEYIN Not Used. n/a
50 P20 KEYIN Notification of the OEM in which the chassis is used. Diode D002 identifies it as Hitachi by feeding back Key Out2 pulses from pin

53 P20 Power ON/OFF When the DM-1 Module instructs the Slave Micro. to turn ON, this output goes high High
54 P62 Clock Clock for data communications to control the Front L/R and Center Graphic Equalizer Data
55 P07 Auto Convergence Size When Magic Focus is initialized or run, the deflection size is widened to guarantee light strikes the Photo cells. High
56 P61 V.MUTE Mutes Audio and Video through Q008 and Q010 to Sub Video and Surround PWB during channel change High
57 P06 Auto

Convergence Busy
58 P60 UV/IQ Not Used. n/a
59 P05 HOR. Det Receives a High when the 130V line is drawing excessive current. Shuts off relay. High
60 P04 Run Supply Det. (Not Used) n/a
61 OSC Blk OSD (Blk) Outputs a pulse slight wider and in time with the OSD characters to clean up video where character will be displayed. Pulse
62 B OSD (B) Outputs Blue characters for the Service Menu Pulse
63 G OSD (G) Outputs Green characters for the Service Menu Pulse
64 R OSD (R) Outputs Red characters for the Service Menu Pulse

essor.

and Deflection IC's.

When the Magic Focus switch is pressed, the DM-1 module notifies the Slave Micro.
Then the Slave Micro outputs a high from this pin to the DCU to start Magic Focus.

3DYC and Deflection IC's.

38.

Whe the DCU is activated by the Service Only switch, this pin is notified via Q002. After notification,
the Slave Microprocessor notifies the DM-1 module via data to ignore Infrared commands.

Low

Data

High

Data

Data

High

Page 07-02

DP-85 SYSTEM CONTROL PORT DESCRIPTION

U001

AC (50/60 Hz)

PIP Sync Det

Side Panel APL

(N/A) Dimmer

CH Change Mute

Smooth Wide

H.BLK-HP

Arm Up

DM-1

Rx SOUT

Auto Convergence SW P67

Power On/Off P20

V.MUTE P61

V.STOP P26

(N/A) P.BLK P66

Headphne SEL Det P16

HOR. Det P05

(N/A) Run Supply Det

Auto Convergence Busy

Auto Convergence Size

OSD (Blk)

6

P43
TIM2
AD3
AD2
P27
P47

7

8

10

14

PWM4
INT1Request

19

SCLKClock

17

SINTx

44

53

56

9

46

40

59

60

P04

57

P06

55

P07
OSC Blk

49

47

43

45

42

37

38

39

41

3

50

13

15

SCL1

SDA1

SCL2

SDA2

AD4

P10/

I001

5

11

23

21

130V Ex. Current

61

P31
P30

P03

P15

P23
P01

P02

CLOCK

DATA

ENABLE

LOCK

AFC

KEYIN

SCL
SDA

SCL
SDA

SCL

SDA

SCL
SDA

SCL
SDA

SCL
SDA

SCL
SDA

SCL
SDA

I002

IS01

I008

IX01

U002

I301

IS02

IS03

PINP
TUNER

EEPROM

PINP/Front
Audio Control

1H Video/
Chroma

2.14H Video
Processor

PinP

AV SW

LFE/Center
Audio Control

Headphone/Rear
Audio Control

OSD (B)
OSD (G)

OSD (R)
OSD H.Pulse
OSD V.Pulse

(N/A) UV/IQ

4:3

MAIN/PinP

C. Video Input

62

B

63

G

64

R
HSYNC
VSYNC

58

P60

16

P51

12

P50
CVIN

28

SCL

U301

3D Y/C

SDA
SCL

I702

Deflection

SDA

1

IG02

2

48

54

P65
P62

Data
Clock

Front L/R
Graphic
Equalizer

IG11

Data

Center
Graphic

36

Clock

ResetCVIN

Equalizer

Page 07-03

DP-85 CHASSIS MICROPROCESSOR DATA COMMUNICATIONS CIRCUIT DIAGRAM

IOO1

Micro Processor

SCL2

SDA2

NOTE:

J22600 Lum type connector

Pins on the DM-1 are

backwards compared to

PMS2.

ICP TX

ICP REQUEST

ICP RX

ICPCLK

SDA3

SCL3

45
42

17
19
21
23

15
13

PMS2

5
3
6
4

10
12

9

11

5
6

U002

2
1

PCX

3
2

J22600

SDA3
SCL3

SDA2
SCL2

SCL2
SDA2

PinP

UNIT

3D Y/C

UNIT

DM-1

MODULE

IOO2

EEPROM

SDA2

I008

1H Video/

Chroma

3334

SCL2

PSZ1

17
16

PSU1

4
5

PSD1

1
2

26
27

PDD2

9
8

2H Video PWB

SCL2

SDA2

IX01

Rainforest

SCL2
SDA2

Sub Deflection PWB

I702

Sweep Control

SCL2

4

SDA2

3

Surround PWB

16

Center/LFE

17

Audio Control

16

Rear/Headphone

17

Audio Control

IS02

IS03

Page 07-04

GEQ CLOCK

GEQ DATA 13

PinP Tuner Enable

PinP Tuner Data

PinP Tuner Clock

SDA1

54
48

39
38
37

43SCL1
47

17

Enable

16

Data

15 Clock

U001

Tuner 2

(Mono)

Pinp

12

GEQ CLOCK

GEQ DATA

27
26

SCL1

SDA1

6
7

IS01

Front/Transmit

Audio Control

16
17

16
17

Terminal PWB

IG02

Front

Equalizer

IG11

Center

Equalizer

I301

PST3

5
4

27
26

SDA1

A/V Select

SCL1

DP-85 SERVICE ADJUSTMENT ORDER “PREHEAT BEFORE BEGINNING”

Order Adjustment Item Screen Format Signal DCU Data

1

Cut Off FULL

2

Pre Focus FULL

3

DCU Phase Data Setting FULL

4

DCU Phase Data Setting SMOOTH

5

Horz. Position Adj. (Coarse) FULL

6

Horz. Position Adj. (Coarse) SMOOTH

7

Raster Tilt FULL

8

Beam Alignment FULL

9

Raster Position FULL

10

Horz. Blanking Phase FULL

11

Horz. Size Adjust FULL

12

Vertical Size Adjust FULL

13

Trapezoid FULL

14

Side Pin FULL

NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC

CLEAR

NTSC
NTSC

CLEAR

NTSC
NTSC
NTSC
NTSC
NTSC

CLEAR
CLEAR
CLEAR
CLEAR

15

Horz. Size Adj. SMOOTH

16

Vertical Size Adjust SMOOTH

17

Trapezoid SMOOTH

18

Side Pin SMOOTH

19

Beam Form NORMAL

20

Lens Focus Adjust FULL

21

Static Focus Adjust FULL

22

Blue Defocus FULL

23

White Balance Adjustment FULL

24

Sub Brightness Adjustment FULL

25

Horz. Position Adjustment FULL

26

Horz. Position Adjustment SMOOTH

27

Convergence Alignment FULL

28

Convergence Alignment SMOOTH

29

Magic Focus Initialize FULL

30

Magic Focus Initialize SMOOTH

NTSC
NTSC

NTSC DCU Grid

NTSC
NTSC
NTSC
NTSC
NTSC
NTSC

NTSC Color Bar

NTSC
NTSC
NTSC
NTSC
NTSC
NTSC

CLEAR
CLEAR
CLEAR
CLEAR

CLEAR to start

It is necessary to follow the order when performing an alignment on the 61HDX98B

PAGE 08-0 1

DP-85 I2C SERVICE MODE Page 1 of 4 Total of 117 Adj. with 13 Field Adjustments

OSD

(Text)

ADJ.

RANGE

INIT.

VALUE

CONTROLLED

DEVICE

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

No.

1 SERVIC SERVICE Off/On Off
2 SUBBRT SUB BRIGHTNESS 0~255 127
3 HBLKPH
4 HPOS-F H. Position (Full) 0~127 76
5 SPIN Side Pin (Full) 0~63 22
6 TRAP Trapezoid (Full) 0~63 25
7 HSIZ H. Size (Full) 0~127 30
8 VSIZ-F V. Size (Full) 0~127 46

9 H-POS-S H. Position (Smooth) 0~127 76
10 SPIN-S Side Pin (Smooth) 0~63 18
11 TRAP-S Trapezoid (Smooth) 0~63 26
12 HSIZ-S H. Size (Smooth) 0~127 58
13 VSIZ-S V. Size (Smooth) 0~127 47
14 PHPOSI PIP H. Position (CENTER) 0~63 14 PinP Unit
15 PVPOSI PIP V. Position (CENTER) 0~63 12 PinP Unit
16 CONT Contrast (CENTER) 0~127 63 UNI-COLOR -18dB to 0dB TA1276AN
17 CONT-T Contrast (Center offset) Theater Mode 0~127 63 UNI-COLOR -18dB to 0dB TA1276AN
18 BRT-YIQ Brightness YIQ TA1276AN
19 BRT-T Black Level (Center offset) Theater Mode 0~255 127 -40IRE to +40IRE TA1276AN
20 C-YIQ Color (Center) (NTSC-YIQ) 0~127 63 Color Min -20dB to +4dB TA1276AN
21 C-170 Color (Center) (SMPTE-170M) 0~127 63 TA1276AN
22 C-709 Color (Center) (ITU-R709) 0~127 63 TA1276AN
23 T-YIQ Tint (Center) (NTSC-YIQ) 0~127 63 TINT -32deg to +32deg TA1276AN
24 T-170 Tint (Center) (SMPTE-170M) 0~127 63 TA1276AN
25 T-709 Tint (Center) (ITU-R709) 0~127 63 TA1276AN
26 S-NTSC Sharpness (Center) (NTSC) 0~127 63 Sharpness Min -20dB to +14dB TA1276AN
27 S-SDTV Sharpness (Center) (SDTV) 0~127 18 TA1276AN
28 S-HDTV Sharpness (Center) (HDTV) 0~127 63 TA1276AN
29 S-T Sharpness (Center offset) Theater Mode 0~127 63 SHARPNESS -20dB to +14dB TA1276AN
30 G-9300 Green Drive (9300K) 0~127 63 DRIVE -5dB to 0dB to +3dB TA1276AN

H. BLK. PHASE

ADJUSTMENT ITEMS

0~63 32

ADJ. VARIABLE RANGE

-40IRE to +40IRE TA1276AN

uPc1885
uPc1885
uPc1885
uPc1885
uPc1885
uPc1885
uPc1885
uPc1885
uPc1885
uPc1885

Only adjust those adjustments with a YES in the ADJ column.

Page 08-02

DP-85 I2C SERVICE MODE Page 2 of 4 Total of 117 Adj. with 13 Field Adjustments

OSD

(Text)

ADJ.

RANGE

INIT.

VALUE

CONTROLLED

DEVICE

No.

ADJUSTMENT ITEMS

ADJ. VARIABLE RANGE

31 B-9300 Blue Drive (9300K) 0~127 63 TA1276AN
32 G-7500 Green Drive (7500K) 0~127 54 TA1276AN
33 B-7500 Blue Drive (7500K) 0~127 46 TA1276AN
34 R-CUT Red Cutoff 0~255 127 R CUTOFF 2V to 2.5V to 3V TA1276AN
35 G-CUT Green Cutoff 0~255 127 G CUTOFF 2V to 2.5V to 3V TA1276AN
36 B-CUT Blue Cutoff 0~255 127 B CUTOFF 2V to 2.5V to 3V TA1276AN
37 HFVM H. F/V Min. OSC Frequency (Full) 0~63 8 uPc1885
38 HFVO H. F/V OSC Frequency (Full) 0~63 31 uPc1885
39 SPB-F Side Pin Balance (Full) 0~31 15
40 HDTY-F H. Duty (Full) 0~31 15

uPc1885

uPc1885
41 SPC Side Pin Corner (Full) 0~63 31 uPc1885
42 ----- Don't Care
43 VSL-F V.S. Linearity (Full) 0~31 15 uPc1885
44 VCL-F V.C. Linearity (Full) 0~31 15 uPc1885
45 ----- Don't Care
46 ----- Don't Care
47 ----- Don't Care
48 RGBBRT RGB Black Level (Digital Convergence) 0~127 63 -4dB to 0dB to +3dB TA1276AN
49 RGBCNT RGB Contrast (Digital Convergence) 0~127 90 -18dB to 0dB TA1276AN
50 WPSL White Peak Suppressing Level (WPSL) 0~1 1 0:130IRE 1:110IRE TA1276AN
51 HIBRT High Bright Color (HIBRT) 0~1 0
52 CGAMMA Color Gamma Correction Point 0~3 0
53 CLIMIT Color Limiter Level (CLR) 0~1 0
54 SUBCNT Sub Contrast 0~31 16
55 YGAMMA Y-Gamma CURVE 0~3 0
56 CDE CDE 0~1 1
57 RPHYIQ (R-Y) Phase (NTSC-YIQ) 0~3 2
58 RBGYIQ (R-Y) / (B-Y) Gain (NTSC-YIQ) 0~3 0
59 GPHYIQ (G-Y) Phase (NTSC-YIQ) 0~3 2
60 GBGYIQ (G-Y) / (B-Y) Gain (NTSC-YIQ) 0~3 0

0:Off 1:On
0:Off 1:O.2Vp-p 2:0.4Vp-p 3:0.6vp-p
0: 1.8Vp-p 1: 2.2Vp-p

-3dB to +3dB
0:Off 1:-2.5dB 2:-4.8dB 3:-6.5dB
0:On 1:Off
0:90deg 1:92deg 2:94deg 3:112deg
0:0.56 1:0.68 2:0.79 3:0.86
0:236deg 1:240deg 2:244deg 3:253deg
0:0.30 1:0.34 2:0.40 3:0.45

TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN

Only adjust those adjustments with a YES in the ADJ column.

Page 08-03

DP-85 I2C SERVICE MODE Page 3 of 4 Total of 117 Adj. with 13 Field Adjustments

OSD

(Text)

ADJ.

RANGE

INIT.

VALUE

CONTROLLED

DEVICE

No.

61 RPH170 (G-Y) Phase (SMPTE-170M) 0~3 0
62 RBG170 (R-Y) / (B-Y) Gain (SMPTE-170M) 0~3 2
63 GPH170 (G-Y) Phase (SMPTE-170M) 0~3 2
64 GBG170 (G-Y) / (B-Y) Gain (SMPTE-170M) 0~3 3
65 RPH709 (R-Y) Phase (ITU-R709) 0~3 0
66 RBG709 (R-Y) / (B-Y) Gain (ITU-R709) 0~3 3
67 GPH709 (G-Y) Phase (ITU-R709) 0~3 2
68 GBG709 (G-Y) / (B-Y) Gain (ITU-R709) 0~3 0
69 OSDACL OSD-ACL (OS-ACL) 0~1 1
70 RGBACL RGB-ACL (TX-ACL) 0~1 0
71 SVM-PH VSM PHASE 0~3 3

ADJUSTMENT ITEMS

ADJ. VARIABLE RANGE

0:90deg 1:92deg 2:94deg 3:112deg
0:0.56 1:0.68 2:0.79 3:0.86
0:236deg 1:240deg 2:244deg 3:253deg
0:0.30 1:0.34 2:0.40 3:0.45
0:90deg 1:92deg 2:94deg 3:112deg
0:0.56 1:0.68 2:0.79 3:0.86
0:236deg 1:240deg 2:244deg 3:253deg
0:0.30 1:0.34 2:0.40 3:0.45
0:On 1:Off
0:Gain1/2 2:Normal
0:-40ns 1:-20ns 2:0ns 3:+20ns

TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN
TA1276AN

TA1276AN
72 PIPVOL PinP Volume
73 APC-NT APACON PEAK f0 (NTSC) 0~7 7
74 APC-SD APACON PEAK f0 (SDTV) 0~7 6

0:Off 1:4MHz 2:3.3MHz 4:2.5MHz
5:Off 6:13MHz 7:10MHz 8:8MHz

TA1276AN

TA1276AN
75 APC-HD APACON PEAK f0 (HDTV) 0~7 5 TA1276AN
76 SVMLMT Velocity Modulation Limit 0~1 0
77 DCR-PO D.C. Restoration Point 0~7 0
78 DCR-RA D.C. Restoration Rate 0~7 0
79 DCR-LI D.C. Restoration Limit 0~3 0
80 BSP
81 ABSP
82 BSP-T
83 ABSP-T
84 YGM-PO
85 STRCNT
86 STRCSD

Black Stretch Start Point
APL to Black Stretch Start Point
Black Stretch Start Point (Theater)
APL to Black Stretch Start Point (Theater)
Y-Gamma Point

0~7 2
0~3 1
0~7 0
0~3 0
0~1 0

0:Parabola Modulation OFF 1:On
0:0% to 7:42%
0:100% to 7:130%
0:100% 1:87% 2:73% 3:60%
0:22IRE to 7.56IRE
0:0dB to 3:1.5dB
0:22IRE to 7.56IRE
0:0dB to 3:1.5dB
0:100IRE 1:95IRE

TA1276AN

TA1276AN

TA1276AN

TA1276AN

TA1276AN

TA1276AN

TA1276AN

TA1276AN

TA1276AN

87 STRCHD
88 RGB-GM
89 BLC
90 BSG

RGB-Gamma
Black Level Automatic Correction (B.L.C.)
Black Stretch Gain (B.S.G.)

0~1 1
0~1 1
0~1 1

0:OFF 1:ON
0:OFF 1:ON
0:ON 1:OFF

TA1276AN

TA1276AN

TA1276AN

Only adjust those adjustments with a YES in the ADJ column.

Page 08-04

DP-85 I2C SERVICE MODE Page 4 of 4 Total of 117 Adj. with 13 Field Adjustments

OSD

(Text)

ADJ.

RANGE

INIT.

VALUE

CONTROLLED

DEVICE

No.

91 BDL
92 DADV
93 DAS
94 ABLV
95 ABLS
96 ABLV-T
97 ABLS-T
98 TINT-P
99 CLR-P

100 TNT-NT
101 CNT-NT
102 CLR-NT
103 CCD-D
104 CCD-S
105 CCD-W
106 CCD-C
107 CCD-SD
108 CCD-CD

Black Detection Level (B.D.L.)
Dynamic ABL Detection Voltage
Dynamic ABL Sensitivity
ABL Detection Voltage
ABL Sensitivity
ABL Detection Voltage (Theater)
ABL Sensitivity (Theater)
Tint (PinP)
Color (PinP)
Tint (Main Picture) NTSC
Contrast (Main Picture) NTSC
Color (Main Picture) NTSC
CCD Data Slice Line (00E0H)
CCD Start Bit Position (00E1H)
CCD Window Position (00E2)
CCD Clock Line Counter (00E6H)
CCD Start Bit Position (00E7H)
CCD Clock Line Detection (00E9H)

ADJUSTMENT ITEMS

ADJ. VARIABLE RANGE

0~1 1
0~7 0
0~7 0
0~7 0
0~7 0
0~7 0
0~7 0

0:3IRE to 1:0IRE
0:MIN 7:MAX
0:MIN 7:MAX
0:MIN 7:MAX
0:MIN 7:MAX
0:MIN 7:MAX
0:MIN 7:MAX

TA1276AN

TA1276AN

TA1276AN

TA1276AN

TA1276AN

TA1276AN

TA1276AN

0~255 160 PinP Unit
0~255 121 PinP Unit
0~127 56 TA1270AF

0~31 27 TA1270AF

0~31 12 TA1270AF
0~255 17
0~255 210
0~255 41
0~255 5
0~255 1
0~255 108

109 YNR
110 YOUTGM
111 ----- Don't Care
112 RESET

Initial Set

113 ----- Don't Care
114 HFV H. F/V (Full) 0~255 243 uPc1885
115 VPOS-F V. Position (Full) 0~127 63 uPc1885
116 VMAX-F V. Output Max. Size (Full) 0~31 18 uPc1885
117 VSM-GA VSM GAIN 0~3 0

0:0dB 1:-6dB 2:-9dB 3:Off

TA1276AN

Only adjust those adjustments with a YES in the ADJ column.

Page 08-05

DP-85 SERIES CHASSIS MAGNETS, SCREEN CONTROLS and FOCUS BLOCK ASSEMBLY

DP-85 MAGNETS
Adjustment Points

FRONT

RED CRT GREEN CRT BLUE CRT

4

5

(1)

Centering magnet RED

(2)

Centering magnet GREEN

(3)

Centering magnet BLUE

(4)

Beam Form Magnets

21 3

4

6

5

(5)

Beam Alignment magnets

(6)

Focus Block Assembly RED, GREEN &

4

5

BLUE
Also: Drive Adjustment controls for
RED, GREEN & BLUE

PAGE 08-0 6

PRE HEAT RUN CONDITION DP-85 Series Chassis.

PRESET EACH ADJUSTMENT
VR TO CONDITION AS
SHOWN:

A) Before Pre Heat Run.

1) Red and Green Drive VR on

the CRT PWB. (Not on Blue

CRT).

Pre set

12~2

between the
12 o’clock
and 2 o’clock
position.

DRIVE VR

2) SCREEN VR ON FOCUS
PACK.

Pre Set fully counter
clockwise.

SCREEN VR

3) Focus VR on focus pack

Pre Set fully clockwise.

FOCUS VR

Projection Front View

RED CRT GREEN CRT BLUE CRT

Screen VR

R G B

Focus VR

R G B

FOCUS PACK

PAGE 08-0 7

CUT OFF and FOCUS ADJUSTMENT DP-85 CHASSIS

ADJUSTMENT PREPARATION:

A) Pre Heat Run should be
finished.

ADJUSTMENT PROCEDURE:

1) Go to I

2

C ADJ. Mode. (With

power ON, press the TV/
SAT and the CURSOR

DOWN [q] button. The
Service Menu is displayed.)

2) Choose SERVICE item [1]

of I2C ADJ. Mode. (Select

CURSOR RIGHT [u] and
the Vertical will collapses).

3) Adjust any Screen VR.

Screen VR should be turned
clockwise gradually until
that particular color is
barely visible.

4) Repeat for the other two

colors.

FOCUS ADJUSTMENT:

1) Short the 2pin sub­miniature connector on the
CRT PWB (TS), to remove
any color not being
adjusted and adjust one
color at a time. (The

adjustment order of R, G
and B is just an example.)

2) Adjust the Focus VR for
Red until maximum Focus is
achieved.

3) Repeat for Blue and Green.

4) To Return to Service Menu,
press the CURSOR RIGHT
[u] key on remote.

Screen VRs

Focus VRs

Projection Front View

RED CRT GREEN CRT BLUE CRT

Screen VR

R G B

Focus VR

R G B

FOCUS PACK

PAGE 08-0 8

DP-85 CHASSIS

DCU CROSS-HATCH PHASE SETTING ADJUSTMENT PROCEDURE

Adjustment Preparation:

1) Cut Off adjustment should
be finished.

2) Video Control: Brightness
90%, Contrast Max.

Adjustment Procedure:

1) Receive any NTSC signal.

2) Screen Format is FULL

3) Press and Hold the
SERVICE ONLY switch on
the deflection PWB.

4) Press the ANT key on the
Remote, then press the
EXIT key. (This is the
Phase adjustment mode).

5) Adjust data value using the
keys indicated in the chart,
until the data matches the
values indicated in the
chart.

Exiting Adjustment Mode:

6) Press Help key on remote
control.

7) Press SWAP key TWICE to
store the information.

8) When Green dots are
displayed, press the 8 key
on remote.

9) Press the SERVICE ONLY
switch to return to normal
mode.

SMOOTH Mode Adjustment
Mode:

10) Change the Display Format
to SMOOTH/WIDE Mode.

11) Repeat steps 3 through 9
for the SMOOTH/WIDE
mode.

PHASE MODE (FULL and SMOOTH/WIDE)

Display Format

ADJUST USING

4 and 6 keys on Remote

2 and 5 keys on Remote

Cursor Left t and Right u on Remote

Cursor Up p and Down q on Remote

Address Data Value

PH-H B9

PH-V 07

CR-H 4E

CR-V 0C

PAGE 08-0 9

DP-85 CHASSIS

HORIZONTAL POSITION “COARSE” ADJUSTMENT PROCEDURE

Adjustment Preparation:

1) Cut Off adjustment
should be finished.

2) Video Control: Bright­ness 90%, Contrast
Max.

Adjustment Procedure
NORMAL MODE:

1) Receive any NTSC
crosshair signal.

2) Screen Format is NOR-
MAL

3) Press the SERVICE
ONLY switch on the
deflection PWB and
display the Digital Con­vergence Crosshatch
pattern.

4) Mark the center of the
Digital Convergence
Crosshatch Pattern
with finger and press
the SERVICE ONLY
switch to return to
normal mode.

5) Enter the I2C Bus align­ment menu and select
Item [4] HPOS-F and
adjust the data so that
the center of Video
matches the location

of the Digital Cross­hatch pattern noted in
step {4}.

6) Write down the data
value.

7) Exit from the I2C
Menu.

SMOOTH/WIDE Mode
Adjustment:

1) Receive any NTSC
crosshair signal.

2) Screen Format is
SMOOTH.

3) Press the SERVICE
ONLY switch on the
deflection PWB and
display the Digital Con­vergence Crosshatch
pattern.

4) Mark the center of the
Digital Convergence
Crosshatch Pattern
with finger and press
the SERVICE ONLY
switch to return to
normal mode.

5) Enter the I2C Bus align­ment menu and select
Item [9] HPOS-S and
adjust the data to the
same value as the data
value entered for the

NORMAL mode Step
{6}.

6) Press the MENU button
on remote to exit ser­vice menu mode.

PAGE 08-10

DP-85 CHASSIS

RASTER TILT (Deflection Yoke) ADJUSTMENT PROCEDURE

Adjustment Preparation:

1) The set can face any
direction.

2) Receive the Cross­Hatch Signal

3) VIDEO CONTROLS:
Factory Preset.

4) SCREEN FORMAT:
should be FULL mode.

5) The lens focus should
have been coarse ad­justed.

6) The electrical focus
should have been
coarse adjusted.

7) The Digital Conver­gence RAM should be
cleared.

(Turn power off, press
and hold the SERVICE
ONLY switch, then
press the POWER but­ton).

The Service Only
switch is on the De­flection PWB.

Adjustment Procedure :
GREEN:

1) Apply covers to the
RED and BLUE lenses
or short the 2P Sub
Mini connector [TS] on
each CRT PWB to pro­duce only GREEN.

2) Turn the Green defle c­tion yoke and adjust
the TILT until the
green is level. [+/-
2mm tolerance]. See
diagram.

RED:

1) Remove cover from
RED CRT and align
RED with GREEN.

2) [+/- 1mm tolerance

when compared to
Green]

BLUE:

1) Remove cover from
BLUE and cover the
RED CRT. Align BLUE
with GREEN.

2) [+/- 1mm tolerance

when compared to
Green]

3) REMOVE ALL COV­ERS.

4) Turn the power off.

l = ñ 2mm

l

Vertical Center axis of

Cross-Hair signal

PAGE 08-11

BEAM ALIGNMENT for DP-85 CHASSIS

ADJUSTMENT

(WARNING: Remove all rings, watches and jewelry to avoid shock.)

Preparation for adjustment:

1) Adjust at least 30 minutes
after turning on power
switch.

2) Raster inclination, center­ing, horizontal and vertical
amplitudes and optical fo­cus adjustment should be
completed.

3) Brightness: 90%
Contrast Max.

4) Receive cross hatch signals,
or dot pattern
RASTER TILT adjustment
should be finished.

5) SCREEN FORMAT should
be FULL mode.

Adjustment procedure:

1) Green (G) tube beam align­ment adjustment:
Short-circuit 2P subminia­ture connector plug pins of
Red (R) and Blue (B) on the
CRT boards and project
only Green (G).

2) Put Green (G) tube beam
alignment magnet to the
cancel state as shown in

Figure 1.

Fig. 1

The figure shows that the
long and short knobs of the
2P magnet are aligned, this is
the cancel state.

3) Turn the Green (G) static
focus VR counterclockwise
all the way and make sure
of position of cross hatch
center on screen.

4) Turn Green (G) static focus
VR clockwise all the way.

5) Turn two Beam alignment
magnet in any desired di­rection and move cross
hatch center to position
found in step (3).

(See Figure 2 below).

6) If image position does not
shift when Green static fo­cus VR is turned, adjust­ment complete.

7) If image position does

move, repeat steps [2]
through [6].

8) Conduct beam alignment

for Red and Blue in the
same way.

9) Red (R) focus on focus

pack.

10) Blue (B) focus on focus

pack.

11) Upon completion of adjust-

ment, place a small
amount of white paint on
the beam alignment mag­nets, to assure they don’t
move. (If available).

BEAM SHAPE
Preparation for adjustment

IMPORTANT: Screen format
should be “NORMAL“.

1) The beam alignment should
have been completed

PICTURE TUBE SIDE

Figure 2

2) The Yoke Tilt, centering,
horizontal/vertical amplitude
and optical focus adjust­ments should have been
completed.

3) Brightness: 90%, Contrast:
Max..

4) Input a NTSC DOT signal.

Adjustments procedure:

1) Green CRT beam shape ad­justment.

2) Short-circuit 2P sub-mini
connectors on Red and Blue
CRT PWB to project only
the Green beam.

3) Turn the green static focus
VR fully clockwise.

4) Make the dot at the screen
center a true circle as
shown in Figure 2 on page

01-19, using the 4-Pole

magnet shown in Figure 2

bellow.

5) Also adjust the Red and
Blue CRT beam shapes ac­cording to the steps (1) to
(3).

6) After the adjustment is
completed, return R, G and
B static VRs to the Best Fo­cus point.

TABS

BEAM SHAPE &

ALIGNMENT MAGNET

4-POLE BEAM SHAPE
CORRECTION MAGNET

ZERO FIELD SPACER

(NO ADJUSTMENT)

2-POLE BEAM
ALIGNMENT MAGNET

PAGE 08-12

DP-85 CHASSIS CENTERING MAGNET vs. BEAM FORM MAGNET

ADJUSTMENT

NOTE:
The Centering Magnet and Beam Form and Beam Alignment magnets are shown on the
right to avoid confusion when adjusting.

Figure 1 shows the Centering magnet. This magnet is normally made of metal and is
located up against the back side of the yoke assembly.
(Not down on the neck of the CRT)

CENTERING MAGNET

Figure 1

Figure 2 shows the Beam Form and Alignment magnet. This magnet is normally made of
plastic and is located close to the CRT PWB on the neck of the CRT.

BEAM FORM & ALIGNMENT MAGNET

PICTURE TUBE SIDE

Figure 2

TABS

4-POLE BEAM SHAPE
CORRECTION MAGNET

ZERO FIELD SPACER

(NO ADJUSTMENT)

2-POLE BEAM
ALIGNMENT MAGNET

PAGE 08-13

RED, GREEN and BLUE CENTERING FOR THE DP-85 CHASSIS

Centering adjustment using the
Centering Magnets.

1) Display a Cross-Hair signal from
an external generator.

2) Contrast: Maximum Brightness:
Center

3) The focus adjustment should have
been completed.

4) The electrical focus should have
been adjusted.

5) Yoke Tilt should have been
completed.

6) The convergence DCU RAM
should have been CLEARED.

(With Power OFF, press and
hold the Service Switch down,
then press power. When picture
appears, press the Service
Switch again to bring up the
DCU Crosshatch.)

Adjustment procedure:

1) Select the Green adjustment
mode, “Recall” on the remote

control. “See Digital

Convergence adjustment
procedure”.

2) Apply the Digital convergence
overlay.

3) Press the “Menu” button on the
remote to turn off Red and Blue.

4) Adjust the centering magnets for
G on the back side of the
Deflection Yoke and align the
center of the G Crosshatch to the
center of the overlay.

5) Select Red adjustment Mode,
“0” on the remote control.

6) Adjust the R centering magnet
and align the center of R with the
left centering offset mark on the
overlay.

7) Select Blue adjustment Mode,
“Input” on the remote control.

8) Adjust the B centering magnet
and align the center of B with the
Right centering offset mark on
the overlay.

Offset Measurements.

The actual measurements for Red
and Blue offset are as follows:
Red is aligned 10 mm left of center
Blue is aligned 30 mm right of
center.

Geometric

Center of

Screen

Red

Red offset = 10mm

Green

Blue

Blue offset = 30mm

PAGE 08-14

HORIZONTAL BLANKING PHASE ADJUSTMENT DP-85 CHASSIS

This adjustment is only neces­sary when the 2H video PWB
is repaired or replaced.

Adjustment Preparation.

1) VIDEO control : Factory
Preset.

2) Beam Form adj. Complete.

3) Receive any NTSC signal,

resolution chart would be
best.

FULL MODE NTSC

Adjustment procedure:

1) Go to I

mode. (Press the TV/SAT

2

C Service Adj.

and Channel Down button

4) Select item [3] (HBLKPH)

5) Adjust until l2 is equal with

together to display Service
Adj. Mode.)

2) Choose item [7] (HSIZE-F)
with the remote up/down
keys, and NOTE the current
data value. Reduce to mini­mum.

3) Display only Green by
shorting the sub mini 2pin
connector on the Red and
Blue CRT PWB.

6) Choose item [7] (HSIZE-F)

7) Return item [7] data value

Note: Only this side moves with adjustment.

with the remote up/down
keys.

l1. (See figure below).

with remote up/down keys.

with the one noted in step
(2) of Adjustment Proce­dure.

1

l

l 2=l 1

This point has no video

l

2

PAGE 08-15

HORIZONTAL & VERTICAL SIZE ADJUSTMENT PROCEDURE DP-85 CHASSIS

VERTICAL SIZE:
(Display Mode FULL or
SMOOTH/WIDE as Depicted)

1) Install the correct Overlay

dependant upon the Dis­play Mode being adjusted.

2) Input any NTSC Signal.

3) Digital Convergence RAM
should be cleared. With
Power Off, press and hold
the Service Only Switch on
the Deflection PWB, then
press Power. (See Page 08-

25).

4) Project only the Green
raster.

5) Press the “EXIT” button on
remote control 5 times to
exit DCAM and access
turner video.

6) Enter I2C Service Mode and
choose Item [8] (VSIZ-F)

• FOR SMOOTH/WIDE MODE

• [Smooth/Wide select Item

[13] (VSIZ-S)]

6) Adjust data value using left
and right cursor on remote
control until raster matches
the top and bottom mark
on the overlay.

7) Press the “MENU” key on
remote control to exit Ser­vice Menu.

HORIZONTAL SIZE:
(Display Mode FULL or
SMOOTH/WIDE as Depicted)

1) Enter I2C Service Mode and
choose Item [7] (HSIZ-F)

• FOR SMOOTH/WIDE MODE

• Smooth/Wide select Item

[12] (HSIZ-S)

2) Adjust data value using left
and right cursor until the
5th line from center
matches the lines indicated

on the left and right hand
side of the overlay.

3) Press the “MENU” key on
remote control to exit Ser­vice Menu.

NOTE: Centering magnet may
be moved to facilitate.
Distance is important, not cen­tering.

NOTE: There are two different
overlays used during this proc­ess.

Alternate Method:

Adjust Horizontal and Vertical
Size until the size matches the
chart below.

VERTICAL

Size of Screen

61 Inch 770 +/- 5mm

Full Mode Smooth Mode

Distance of l

VERTICAL SIZE

Distance of l

690 +/- 5mm

HORIZONTAL

Size of Screen

61 Inch 1130 +/- 5mm 1115 +/- 5mm

Full Mode Smooth Mode

Distance of l

HORIZONTAL SIZE

l

Note: Use 5th line from Center.

Distance of l

PAGE 08-16

TRAPEZOID DISTORTION ADJUSTMENT DP-85 CHASSIS

Adjustment Preparation.

1) VIDEO control : Factory
Preset.

2) SIDE PIN adjustment should
be finished..

3) Digital Convergence RAM
should be cleared. With
Power Off, press and hold
the Service Only Switch on
the Deflection PWB, then
press Power. (See Page 08-

25).

4) Display only Green by se­lecting Green adj. Mode,
“USER”, and the pressing
the “MENU” key to turn off
Red and Blue.

5) Press the “EXIT” button on
remote control 5 times to
exit DCAM and access
turner video.

Adjustment procedure FULL
MODE:

1) Receive any NTSC signal

and Display Format is set to
FULL mode.

2) Go to I

mode. (Press the TV/SAT

2

C Service Adj.

and Channel Down button
together to display Service
Adj. Mode.)

3) Choose item [6] (TRAP-F)
with the remote up/down
keys.

4) Adjust Trapezoid as shown.

5) Press “MENU” key on re­mote to exit Service Menu.

Adjustment procedure
SMOOTH/WIDE MODE:

1) Receive any NTSC signal

and Display Format is set to
SMOOTH/WIDE mode.

2) Go to I

mode. (Press the TV/SAT

2

C Service Adj.

and Channel Down button
together to display Service
Adj. Mode.)

3) Choose item [11] (TRAP-S)
with the remote up/down
keys.

4) Adjust Trapezoid as shown.

5) Exit Service Mode by press­ing the “MENU” key.

6) Power off to exit DCU
cleared mode.

Adjust Trapezoid in both FULL and SMOOTH

Mode until side lines are vertically straight.

PAGE 08-17

SIDE PIN DISTORTION ADJUSTMENT DP-85 CHASSIS

Adjustment Preparation.

1) VIDEO control : Factory
Preset.

2) SIDE PIN adjustment should
be finished..

3) Digital Convergence RAM
should be cleared. With
Power Off, press and hold
the Service Only Switch on
the Deflection PWB, then
press Power. (See Page 08-

25).

4) Display only Green by se­lecting Green adj. Mode,
“USER”, and then pressing
the “MENU” key to turn off
Red and Blue.

5) Press the “EXIT” button on
remote control 5 times to
exit DCAM and access
turner video.

Adjustment procedure FULL
MODE:

1) Receive any NTSC signal

and screen format is set to
FULL mode.

2) Go to I

mode. (Press the TV/SAT

2

C Service Adj.

and Channel Down button
together to display Service
Adj. Mode.)

3) Choose item [5] (SPIN-F)
with the remote up/down
keys.

4) Adjust Side Pin as shown.

5) Press the “MENU” key on
remote to exit Service Ad­justment Mode.

Adjustment procedure
SMOOTH MODE:

1) Receive any NTSC signal

and screen format is set to
SMOOTH mode.

2) Go to I

mode. (Press the TV/SAT

2

C Service Adj.

and Channel Down button
together to display Service
Adj. Mode.)

3) Choose item [10] (SPIN-S)
with the remote up/down
keys.

4) Adjust Side Pin as shown.

5) Exit Service Mode by press­ing the “MENU” key.

6) Power off to exit DCU
cleared mode.

Adjust Side Pin in both FULL and SMOOTH Mode

until side lines are vertically straight.

PAGE 08-18

BEAM FORM ADJUSTMENT for the DP-85 CHASSIS

ADJUSTMENT

BEAM FORM
Preparation for adjustment

1) IMPORTANT: Screen for-

mat should be “NORMAL“.

2) The beam alignment should
have been completed.

2) The Yoke Tilt, centering,
horizontal/vertical amplitude
and optical focus adjust­ments should have been
completed.

3) Brightness: 90%, Contrast:
Max..

4) Input a NTSC DOT signal.

Adjustments procedure:

1) Green CRT beam shape ad­justment.

2) Short-circuit 2P sub-mini
connectors on Red and Blue
CRT PWB to project only
the Green beam.

3) Turn the green static focus
VR fully clockwise.

4) Make the dot at the screen
center a true circle as
shown in Figure 2, using
the 4-Pole magnet shown in

Figure 1.

5) Also adjust the Red and
Blue CRT beam shapes ac­cording to the steps (1) to
(3).

6) After the adjustment is
completed, return R, G and
B static VRs to the Best Fo­cus point.

BEAM ALIGNMENT AND FORM MAGNETS

PICTURE TUBE SIDE

TABS

4-POLE BEAM SHAPE
CORRECTION MAGNET

ZERO FIELD SPACER

(NO ADJUSTMENT)

2-POLE BEAM
ALIGNMENT MAGNET

Figure 1

TRUE CIRCLE
DEGREE a/b

b

SPECIFICATION
a: 0.9
b: 1.1

a

Figure 2

PAGE 08-19

OPTICAL SYSTEM ADJUSTMENTS DP-85 CHASSIS

L

ens Cyli nder

Focus adjustment
DP-8X Series Chassis:
Preparation for adjustment

1) Receive the Cross-hatch
pattern signal.

2) The electrical focus adjust­ment should have been
completed.

3) Deflection Yoke tilt should
have been adjusted.

4) Brightness = 50%

• Contrast = 60% to 70%

Adjustment procedure

4) Short the 2pin sub-

miniature connector on the
CRT P.W.B. TS, to produce
only the color being ad­justed and adjust one at a
time. (The adjustment order
of R, G and B is just an ex­ample.)

2) (See Fig. 1) Loosen the fi x-

ing screw on the lens as­sembly so that the lens cyl­inder can be turned. (Be
careful not to loosen the
screw too much, as this
may cause movement of
the lens cylinder when
tightening.)

3) Rotate the cylinder back
and forth to obtain the best
focus point, while observ­ing the Cross-Hatch.
(Observe the center of the
screen).

• Hint: Located just below

the screen are the two cen­ter speakers. These speak­ers are mounted on two
wooden panels. Remove
the panels to allow access
to the focus rings on the
Lenses.

4) After completing optical fo­cus, tighten the fixing
screws for each lens.

5) When adjusting the Green
Optical focus, be very care­ful. Green is the most domi­nant of the color guns and
any error will be easily
seen.

6) Repeat Electrical Focus if
necessary.

FIXING SCREW

LENS ASSEMBLY R, G, B.

Fig. 1

PAGE 08-20

BLUE DEFOCUS ADJUSTMENT PROCEDURE

Adjustment Preparation:

1) Video Control: Brightness
90%, Contrast Max.

2) Dynamic Focus check
should be finished.

3) SCREEN FORMAT should
be FULL mode.

Adjustment Procedure
NORMAL MODE:

1) Receive any NTSC cross­hatch signal.

2) Screen Format is FULL

3) Turn the B FOCUS VR fully
clockwise.

4) Adjust BLUE defocus ac­cording to the following
specifications.

1mm on each side equaling
2mm total.
See figure.

DP-85 CHASSIS

Blue Defocus “Sticking Out”

Center of Blue crosshatch line

Screen VR

R G B

Focus VR

R G B

FOCUS PACK

Blue Focus VR on

FOCUS PACK

PAGE 08-21

ADJUSTING THE RED, GREEN AND BLUE WHITE BALANCE AND TRACKING
for DP-85 Chassis

Note: When Vertical is collapsed, make adjustments quickly because the image can burn on the CRTs phosphors.

White balance adjustment

1) Screen adjustment

2) High brightness white bal-

ance

3) Low brightness white bal-

ance

Adjustment VRs:
Screen adjustment VRs on Focus
Block
Drive adjustment VRs on CRT P.
W.B.
Red Drive = R829R
Green Drive = R879G

Preparation for adjustment

1) Start adjustment 20 min-

utes or more after the
power is turned on.

2) Turn the brightness and

black level OSD to mini­mum by remote control.

3) Receive a tuner signal, (any

channel, B/W would be
best).

4) Set the drive adjustment

VRs (Red R829R and Green
R879G) to their mechanical
centers.

Adjustment procedure

1) Go to I

power ON, press DTV/SAT
and Cursor Down buttons
at the same time. Service
Menu is displayed.)

2) Choose SERVICE item

2

C ADJ. Mode. (With

Number [1] of I

Mode. (Select ON by Cur-

2

C ADJ.

sor Right and the Vertical
will collapses).

3) Gradually turn the screen
adjustment VRs (red, green,
blue) clockwise and set
them where the red, green
and blue lines are equal and
just barely visible.

4) Return Service item on I2C

Screen VRs

Focus VRs

Projection Front View

RED CRT GREEN CRT BLUE CRT

ADJ to Off by Cursor Right.

Number [1].

Adjust the Sub Brightness

Number [2] SUBBRT using

I2C Bus alignment proce­dure so only the slightest
white portions of the raster
can be seen.

Continued on Next Page

5) Input a gray scale signal

Screen VR

R G B

Focus VR

R G B

FOCUS PACK

W

Y

CY G MG

R BL

75%

A7 A6 A5 A4 A3 A2 A1

B

D

Q

I

W 100%

BLK

The background is set to black.
perform the adjustment without

observing the boundary parts.

The background is set to
lighter black.

PAGE 08-22

ADJUSTING THE RED, GREEN AND BLUE WHITE BALANCE AND TRACKING
for DP-85 Chassis

Note: When Vertical is collapsed, make adjustments quickly because the image can burn on the CRTs phosphors.

into any Video input and
select that input using the
INPUT button on the re­mote or front control
panel.

6) Turn the Brightness and
Contrast OSD all the way
up.

7) Make the whites as white
as possible using the drive

W

Y

CY G MG

75%

A7 A6 A5 A4 A3 A2 A1

B

D

Q

I

W 100%

SUB BRIGHTNESS ADJUSTMENT FOR THE DP-85 CHASSIS

adjustment VRs (red,
green).

8) Set the Brightness and
Contrast to minimum.

9) Adjust the low brightness
areas to black and white,
using screen adjustment
VRs (red, green, blue).

10) Check the high brightness
whites again. If not OK,

R BL

The background is set to black.
perform the adjustment without

observing the boundary parts.

The background is set to
lighter black.

BLK

ALTERNATE METHOD

repeat steps 6 through 9.

11) Press the MENU key on

remote to Exit Service
Menu.

ALTERNATE METHOD:
ADJUSTMENT PREPARATION:
(Coarse Adjustment)

1) Start adjustment 20 min­utes or more after the
power is turned on.

2) Receive a tuner signal.

3) Set the contrast and color
controls to minimum.

4) Set the brightness to mini­mum position on the dis­play.

5) The room light should be
very low.

ADJUSTMENT PROCEDURE

1) Go to I2C ADJ. Mode. (With

power ON, press TV/SAT
and Cursor Down buttons
at the same time. Service
Menu is displayed.)

2) Adjust Sub Brightness

Number [2] SUBBRT, so

that only the brightest
points of the picture can be
seen on screen, using I2C
Bus alignment procedure.

3) (Also see White Balance

Tracking).

4) Press the MENU key to exit
Service Menu

USING A GENERATOR:

1) Use the input signal shown
above, (GRAY SCALE)

2) Adjust Sub Brightness

Number [2], so that the

points A1 and A2 sink to
black and A3 is slightly
visible, using I2C Bus align­ment procedure.

3) Press the MENU key to exit

Service Menu

PAGE 08-23

DP-85 SERIES CHASSIS

HORIZONTAL POSITION “FINE” ADJUSTMENT PROCEDURE

Adjustment Preparation:

1) Video Control: Brightness
90%, Contrast Max.

Adjustment Procedure
NORMAL MODE:

1) Receive any NTSC cross­hatch signal.

2) Screen Format is FULL

3) Enter the I2C Bus alignment
menu and select Item [4]
HPOS-F

4) Adjust the data so that the
Left and Right hand side
are equal as noted in the
figure on the right.

5) Press the “MENU” button

to exit from the Service
Menu.

SMOOTH Mode Adjustment:

1) Receive any NTSC cross­hatch signal.

2) Display Format is
SMOOTH/WIDE mode.

3) Enter the I2C Bus alignment

menu and select Item [9]
HPOS-S

4) Adjust the data using the

left and right cursor keys,
but DO NOT balance the
Left and Right hand side.
Smooth mode with have a

FULL MODE:

Balance left and right side display position.

shift due to the DM-1 mod­ule. This is normal. (See fig­ure below).

5) Press the “MENU” button
to exit from the Service
Menu.

SMOOTH MODE:

Do not Balance left and right side display position.
Screen WILL shift left 6 to 7mm)

A BA=B

A B

PAGE 08-24

DIGITAL CONVERGENCE OVERLAY FULL AND SMOOTH MODE DP-85

Red and Blue Centering Offset is necessary to free up memory in the Digital Convergence Unit.
It is important to offset the Red and Blue centering during Magnet Centering. Failure to do so, could produce a
Memory Overrun error. Red Offset = 10mm and Blue Offset = 30mm for Normal and Smooth /Wide Mode.
Green is Geometrically centered.

DIGITAL CONVERGENCE OVERLAY FULL MODE

1350

20 88 113.4 2088113.4113.4113.4113.4113.4113.4113.4
41
49

97

97

H. SIZE

97

97

97

97

49
41

26 119 2695119107107107104104114

95

46.7

47.8

95.5

95.5

BR

Centering Offset

V. SIZE

H312182A = Full Mode JIG Screen Kit

DIGITAL CONVERGENCE OVERLAY SMOOTH MODE

1350

H. SIZE

762

95.5

95.5

95.5

95.5

47.8

46.7

V. SIZE

BR

762

Centering Offset

H312221 = Smooth/Widel Mode JIG Screen Kit

PAGE 08-25

DP-85 DIGITAL CONVERGENCE

3

19

33

34

ADJUSTMENT POINT STOPPING POSITIONS

3 X 3 MODE (9 stopping positions)

(NOTE: This mode can only be activated when the Digital RAM is cleared, see Page 8-12)

To clear the RAM: PRESS AND HOLD THE SERVICE ONLY SWITCH (Service only switch is located on
the deflection PWB), THEN PRESS AND HOLD THE POWER BUTTON. . The set will come on in Video

mode with cleared RAM data. Press Service Only Switch again.
Set will have no convergence correction. Press “USER” 5 times to access the 3 X 3 Mode.

NOTE: Old ROM data can be restored by pressing the PIP button TWICE.
The set will be restored to the last condition when data was stored.

This mode should
only be needed
when a complete
Digital
convergence
adjustment is
necessary.

2

4

5

MUST USE OVERLAY IN THIS MODE

1

6

9

Begin with Green

8

7

in this mode

5 X 7 MODE (35 stopping positions)

DIGITAL CONVERGENCE CURSOR STOPPING POINTS.

Press the “0” button on the remote 5 times. The raster will blink and the cursor will flash indicating 5 X 7
MODE.

18

1617

35

23

20

21

22

3

11

12

24 25

4

5

2

1

6

26 27

910

8

7

15

14

13

28 29

32

31

30

Note: Grid will actually be slightly different than shown.

PAGE 08-26

DP-85 DIGITAL CONVERGENCE

787980

818283

112

113

114

115

116

117

ADJUSTMENT POINT STOPPING POSITIONS

13 X 9 MODE (117 stopping positions)

Press the “INPUT” button on the CLU-914MP remote 5 times to activate the 117 stopping positions.
The raster will blink and the cursor will flash indicating 13 X 9 MODE.

NOTE:
This is the normal mode when entering the digital convergence adjustment mode.

84

51

50

49

464748

7785

76

75

74

73

111

86

87

88

89

90

91
92

Sometimes during adjustment, S-Distortion can occur. This is when the line has a noticeable wavy
appearance at a certain location. If this is encountered, enter the (5X7) mode and readjust the line. Then
perform Calculation. It may be necessary to return to the (3X3) mode as well.
Note: Store will also perform Calculation.

52

53

54

55

56

57

93 94

36

37

38

39

40 41

58

26

27

28

29

30

12

13

14

15

16

59 60

95

96

1011

3

4

2

1

5 6 7

17
61

18

62 63

97 98

25

9

8

19

99

24

23

22

21

20
64 65

100

101

35

34

33

32

31

45

44

43

42

72

71

70

69

68

66

67

102 103

110

109

108

107

106

105

104

PAGE 08-27

DP-85 SERIES CHASSIS "CLU-614MP" REMOTE CONTROL

REMOTE PERSONALITY WHILE IN THE

DIGITAL CONVERGENCE ADJUSTMENT MODE "D.C.A.M.

To Clear R.A.M. data.

Turn set OFF.
Press and hold the Service Button on
deflection P.W.B. Then Power

*

Button.

"PIP" = "ROM READ"

Reads old R.O.M. data.

(Last data stored in R.O.M.

(Press 2 times)

"PIP CH" = "INITIALIZE"

Perform after

STORE & before EXIT

[SWAP + PIP CH]

"ANT" = "PHASE"

*

(Aligns Cursor to Grid)

"INFO" = "CALCULATION"

(Calculates mid-points)

"MENU" = "REMOVE COLOR"

Removes color

not being adjusted.

(Will NOT remove GREEN )

"USER" ="GREEN adjust"

Digital Cursor Blinks GREEN

3x3 adjustment mode

*

(Press 5 times), can only be

entered when R.A.M. is cleared.

"MOVES DIGITAL CURSOR"

Moves Adjustment Point

(2) Up, (4) Left,

(5) Down, (6) Right

"INPUT" = "BLUE adjust"

Digital Cursor Blinks BLUE

13 x 9 adjustment mode

(Press 5 times)

POWER

TV SATCABLE

DTV/
SAT

PIP CH MOVEANT

MUTE

VOL CH

INFO EXIT

GUIDE

USER HELP

MENU

FAV

CH

SVCS SCHED

REC SELECT

1

4

7

INPUT

TV / CABLE / SAT

LAST

2
5

8

FAV
CH

SWAPPIP

V C R

AUDIO

3

6

9

C.S.

0

HITACHI

CLU-614MP

D.C.A.M.

Digital convergence adjustment
mode

"SWAP" = "ROM WRITE"

(STORE)

Stores data into R.O.M..

(Press 2 times)

"MOVE" = "RASTER ADJ"

Used to align Red and Blue

raster with Green.

(2 Additional lines will Appear)

"EXIT" = "ENTER & EXIT"

Enter or Exit the D.C.A.M.

Must initially enter D.C.A.M. with

Service Button on chassis.

L

I

Toggles between External Video

G
H
T

Up
Down
Left
Right

(Press 5X)

and Internally generated Cross

hatch. After exiting the DCAM,

set can change channels or

external video source.

"CURSOR KEYS" =

"(ADJUSTMENT)"

Adjust the selected color at

the current stopping position.

" 0 " = "RED adjust"

Digital Cursor Blinks RED

7x5 adjustment mode

(Press 5 times)

FRONT CONTROL PANEL

PAGE 08-28

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

Digital Convergence Alignment

Center the Overlay Jig geometrically on the screen

Receive any NTSC signal (Crosshair if possible)

Set SCREEN FORMAT TO FULL mode

Clear RAM data (DCU RAM)

Service only

switch

is on the

deflection

PWB.

No DCU Correction added

results in severe

pincushion distortion

Use the Centering

Magnets closest to

the Yoke

Front View

R

G

Press and hold the
Button, then press the
simultaneously until the set is on.
When video appears, press

SWITCH

again.

SERVICE SWITCH

POWER

Center Magnet Adjustments

Select the External Center Cross Signal by
pressing the
Remote

B

INPUT

EXIT

button 5 times, then the

button .

Align the
individual center crosses
to their respective marks
on the Overlay using the
Yoke Center Magnets

Red =
Left 10mm

Green =
Center

G,R,B

Blue =
Right 30mm

Button

SERVICE

Internal

Digital

"Cross Hatch

Signal" is
projected

External Selected Center

Cross with no DCU center

data

R G B

A

Geometric Center of Screen

PAGE 08-29

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

A

Static Centering Alignments

(Moves Entire Raster)

Internal Cross Hatch

Press the Remote "MOVE"

button (

extra lines will appear

at top and bottom

)

Extra Lines

appear

indicating

Raster Mode

Signal selected

Press the Remote Cursor

buttons to match the

selected Crosshatch

(red and blue) to the

green.

Press the Remote

"MOVE "

to

exit Static Centering.

(

extra lines will disappear)

button

Remote

Adjust Color Up

Adjust

Color

Left

MENU

FAV

CH

Adjust Color Down

FAV

CH

Adjust
Color
Right

Align "Red" and "Blue" static centers

"Green" should already be centered

B

PAGE 08-30

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

B

Convergence 3x3 Point Adjustment Mode

(Green Coarse Alignment)

"USER" Button

is used for

selecting the

3X3

Adjustment

Mode (when

pressed 5

times).

Cursor blinks

at intervals

of 3 to

indicate the

3X3

Adjustment

Mode

Press the Remote

button to enter the Green

Adjustment Mode

Press the Remote

button 5

Use the Remote

buttons to move the Adjustment

Point location

times

3X3 Adjustment Mode

Press the Remote

MENU

project

tube only

blinking cursor)

Buttons

to adjust the lines so that

the green cross hatch align

with the Overlay (Jig)

Before Adjustment

"USER"

to enter the

button to

the green

2, 4, 5, 6

(intersection of

and the

USER

number

Cursor

(The 3X3 Mode

can only be

entered when

the DCU RAM

data is cleared)

Green Only

Remote

USER

Selects GREEN

3X3 Mode =

9 Adjustment Points

Remote

MENU

FAV

CH

Adjusted by cursor keys

After Adjustment

FAV

CH

Remote

2

4 5

6

Moves location of

Adjustment Point

(Intersection of
blinking cursor)

Lines symmetrically

aligned at Adjustment

Points

C

Continue on next page

PAGE 08-31

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

C

Before Calculation

Press the Remote

to Calculate points in between the

adjustment points

"INFO"

button

Calculation

points to prevent "S" Distortion

Convergence 3x3 Mode (9 Point) Adjustment

(Red / Blue Coarse Alignment)

After interpolation, press the Remote

Green always

projected

Crosshatch is

yellow when the

red and green

crosshatches align

to select the Red Convergence Adjustment Mode

Cursor

blinks RED

Selects RED

Press the Remote

the adjustment point, and the

to converge the selected color onto green

2,4,5,6

averages the error between the

"0"

button

Remote

654
987

0

buttons to move

Cursor

buttons

Cursor Blinks Blue

Crosshatch is cyan when the blue

and green crosshatches align

White internal crosshatch

should be projected

Press the Remote

"

INFO

interpolate as often as

" button to

necessary

Has the Blue

3x3 Convergence

Mode been

aligned?

Yes

Press Menu

Button

Selects

Blue

No

D

Remote

INPUT

Press the Remote

"

INPUT

Select the Blue

Convergence

Adjustment Mode

C.S.

0

" button to

654
987

PAGE 08-32

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

D

Convergence 7x5 Point Adjustment

(Green Only Alignment)

Remote

654
987

Press the Remote

five times to enter the 7X5 mode

Press the Remote

to project

" 0 "

button

" USER"

the green only

INPUT

Selects the 7X5

button

Selects GREEN

C.S.

0

mode

Remote

USER

Use the Remote
perform convergence point adjustment at every
other intersection of the crosshatch

35 convergence adjustment points

in 7X5 mode

Press the Remote

to interpolate points in between

the adjustment points

Cursor

and

E

2,4,5,6

Adjust

"INFO"

Color

Left

button

buttons to

Remote

Adjust Color Up

MENU

FAV

CH

Adjust Color Down

FAV

CH

Adjust
Color
Right

PAGE 08-33

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

E

Remote

Convergence 7x5 Point Adjustment

(Red/Blue Alignment)

INPUT

654
987

C.S.

0

Perform

adjustment

at every

other

intersection

Cursor blinks red

at intervals of 2

to indicate the

7x5 mode

Press the Remote

the Red/Green Crosshatch

Press the Remote Cursor and
buttons to perform convergence
point adjustment at every other
intersection of the crosshatch

" 0 "

Press the

Remote

button to

interpolate as

often as

necessary

button to project

2,4,5,6

"INFO"

Press the Remote

Cursor Blinks Blue

"INPUT"

button to select the Blue

Convergence Adjustment

Mode

White Internal

Crosshatch

should be

projected

Has the Blue

7X5 Convergence Mode

been aligned?

Yes

Press Menu Button

F

Selects Blue for

adjustment

INPUT

Remote

654
987

C.S.

0

PAGE 08-34

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

F

Convergence 13X9 Point Adjustment

(Green Only Alignment)

Remote

USER

Selects GREEN

117 convergence

adjustment points in

13X9 mode

Press the Remote

button five times to

enter the 13X9 mode

Press the Remote

button to project

the green only

Use the Remote
buttons to perform convergence
point adjustment at every other
intersection of the crosshatch

" INPUT "

Cursor

"USER"

and

2,4,5,6

Selects the

13X9 mode

INPUT

Remote

Adjust Color Up

Remote

654

987

C.S.

0

Adjust

Color

FAV

Left

CH

Press the Remote "INFO " button

to interpolate points in between

the adjustment points

MENU

FAV

CH

Adjust Color Down

Adjust
Color
Right

G

PAGE 08-35

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

G

Press the Remote

Perform

adjustment

at every

intersection

Cursor blinks red

indicating the

13X9 mode

Adjust Color Up

Adjust

Color

FAV

Left

CH

Adjust Color Down

White Internal

Crosshatch

should be

projected

Convergence 13X9 (117 Point)

Adjustment

Mode and to project

Remote

MENU

FAV

CH

(Red/Blue Alignment)

" 0 "

button to enter RED Adjustment

the Red/Green

Press the Remote Cursor and

2,4,5,6

convergence point adjustment at
every intersection of the
crosshatch

Adjust
Color
Right

buttons to perform

Press the

Remote

13X9 Convergence

"I

button to

interpolate as

often as

necessary

Has the Blue

Mode been

aligned?

Yes

NFO

Crosshatch

"

Press the Remote

button to select the Blue

Convergence Adjustment

INPUT

Cursor Blinks Blue

Mode

No

Selects Blue for

adjustment

Remote

0

"INPUT"

Remote

INPUT

654
987

C.S.

654
987

C.S.

0

Press the Menu Button

to Display all colors

H

PAGE 08-36

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

H

Store New Convergence Data in Rom

Press the Remote "SWAP"

button twice to begin the ROM

Write mode = STORE

ROM WRITE?

1

This screen is projected at the first

press of SWAP button

3

This screen appears with a series of

green dots indicating a successful

Write to Rom or Store.

Note: If Red dots appear, retry the

process. If Red dots appear the

second time, replace the Digital

Convergence module.

2

Screen goes blank for several

seconds at the second push of

the SWAP button

!!!! WARNING !!!!

Initialization must be done after a

Write to Rom, (STORE) in order

for MAGIC FOCUS to operate.

If this is not done, when the

MAGIC FOCUS button is pressed,

the Static Centering Mode will be

entered.

Return to the Digital Conv.

Adjustment Mode and Initialize

the Magic focus.

Press the Remote "SWAP"

button to return to the Digital

Convergence Adjustment mode

I

PAGE 08-37

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

I

Magic Focus Initialization

Press the Remote

ROM WRITE?

Again the screen projects

"ROM WRITE"

press of

This screen appears with a series

of green dots indicating sucessful

sensor Data Initialization

at the first

"SWAP"

1

button

Press the Remote "PIP CH" button

to begin the Initialization Mode

3

"SWAP"

2

button once

MAGIC FOCUS

Screen projects

different light

patterns during the

Initialization Mode

Press the

with Digital Convergence Setup for

Press the "

Change the screen format to

After completing

"Menu"

Install the Smooth/Wide Overlay. Press the Service

Return to

Button to return to Crosshatch. Finished

Service Only Switch

Only switch to enter the DCAM.

(D)

and align to the Overlay.

"NORMAL

adjustments, operation complete.

" to Exit to Normal Mode

"SMOOTH/WIDE"

and

SMOOTH/WIDE"

"Normal Mode"

mode.

mode

.

PAGE 08-38

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

Additional MINOR Adjustments

Available to the Service Technician

CENTER

Press and Hold

Focus

seconds until

button for 5

"CENTER"

appears on Screen

Release Button

Internal

or

Crosshair

Center Cross

should appear.

CENTER

ADJUSTMENT

Magic

Static

or

Center

alignment

is off.

Screen goes black

for several seconds.

Remote

Adjust Color Up

Adjust

Color

Left

MENU

FAV

CH

Adjust Color Down

STATIC

Press and hold the

Focus

until "

button for 10 seconds

STATIC

Screen.

Release Button

Internal crosshatch

should appear.

Adjust

FAV

Color

CH

Right

STATIC

ADJUSTMENT

Magic

" appears on

Center Cross will blink

indicating which Color can

be adjusted. Adjust using the

cursor keys on the Remote.

To select other color, press

the Menu Button.

Press "MAGIC FOCUS Button" to Exit to normal Mode

Center Cross will blink

indicating which Color can

be adjusted. Adjust using the

cursor keys on the Remote.

To select other color, press

the Menu Button.

PAGE 08-39

DP-85 DIGITAL CONVERGENCE ALIGNMENT PROCEDURES

Convergence Touchup

Overlays NOT required!

Convergence Point Adjustment

IMPORTANT:

Begin in FULL mode.

Enter the Service Mode by pressing the "

Switch

" on Deflection PWB.

Press the "

Press following for Selected Color to Adjust;

USER

=

Green

Press "0" five times to select the
Press

"INPUT"

Note: 3X3 mode can not be entered without clearing ROM data.
Press

"2, 4, 5, 6"

Press cursor Up / Down / Left / Right to Adjust Convergence

five times to select the

When adjustment is complete,

DATA by pressing the

MENU

" button to Remove

colors not being adjusted.

0 = Red INPUT = Blue

7X5

Mode

to move Adjustment Point

SWAP

Service Only

13X9

Mode

STORE

the New

button twice.

After Storing, initialize the

button ONCE and then press the

See "Complete Digital Convergence Alignment procedure" for more

MAGIC FOCUS

details.

by pressing the

PIP CH

button.

SWAP

1 2

Press the Service Only Switch

to Exit to Normal mode.

Set display mode

to Smooth/Wide mode

After Smooth/Wide

has been completed

Touch Up

complete

PAGE 08-40

MAGIC FOCUS ERROR CODES FOR THE DP-85 CHASSIS

CONVERGENCE ERRORS:

If an error message or code appears while performing MAGIC FOCUS or initialize (SWAP and PinP CH in
Digital Convergence Adjustment Mode, follow this confirmation and repair method.

♦ Turn on Power and receive any signal.
♦ Press the Service Only Switch on the Power/Deflection PWB.
♦ Press PIP and then the PinP CH buttons on the remote control.
♦ Error code will be displayed in bottom right corner of screen.
♦ If there is no error, and INITIAL OK will appear on screen.

ERROR!!

Error Code

X

No. 1 3

5) Follow repair table for errors.
ERROR!!.

CONNECT1!

Error

Code

1 VF Error Replace DCU

2
*2

3*2 A/D Level Same as Error Code 2

Error

Display

Code

Connect 1 1. Darken Outside Light

2. Placing of Sensor

3. Is pattern hitting sensor?

4. Check connection and solder bridge of sensor

5. Replace Sensor.

6. Replace Sensor PWB.

7. Sensor Connector check.

8. Replace DCU.

9. Adjustment check (H/V size, centering).

Countermeasure

Error Message

Sensor Position

Application

Initialize Magic

Focus

X X

X

—

X X

4 Over Flow 1. Check the placement

2. Adjustment check (H/V size, centering).

3. Conv. Amp. Gain check*1 (check resistor values
only)

5 Convergence Same as Error Code 4

7 Operation Same as Error Code 4

9 Connect 2 Same as Error Code 2

10 Noise Input strong field. Strong signal. Check the wiring of

connector between sensor and DCU

11 Sync Input strong field. Strong signal. Check the wiring of

connector between sensor and DCU

*1 = RK 42, 46, 50, 54, 58, 62 check these resistors. *2 = Sensor Position

X

X

X X

— X

X X
X X

X X

PAGE 08-41

MEMORY INITIALIZATION PROCEDURE for the DP-85 CHASSIS

HDTV POWER ON

PROCEDURES

(Requires Remote Control):

1. Turn off TV.

2. Unplug power cord (or turn off
power strip).

3. Wait approximately 30 seconds.

4. Plug in power cord (or turn on
power strip).

5. Wait for about 20 seconds.

6. Turn on TV.

7. Press front panel [TV/SAT] but­ton once for Satellite program­ming.

8. Enter the HDTV channel number,
then press the [Select] or [Menu]
button.

Initialization as in the past. Service
Adjustment Data will be erased.
All Service Adjustment Data will be
lost.

EEPROM REPLACEMENT:

When the EEPROM is replaced, new
data for the Service I2C will be in­volved. Before operating the set the
EEPROM must be initialized.

To Initialize the EEPROM:

1) If possible, write down the data
values for all Service Adjustments.

2) With Power Off remove the old
EEPROM and install the new
EEPROM.

3) With Power ON, Short circuit pin

justment must be checked and
aligned according to adjustment
section.

9. Wait up to two minutes, depend­ing on antenna strength, for chan­nel programming to download.

10. The HDTV loop tape program
should appear on the screen.

IMPORTANT:
Do not perform the normal Memory

1 and 2 of the PP1 Connector for
at least 5 seconds.

4) Investigate all adjustments. If data
was obtainable from the previous
EEPROM, enter same data values
into new EEPROM.

5) If no data was available from pre­vious EEPROM, each service ad-

PAGE 08-42

TROUBLE SHOOTING (NO RASTER NO POWER DP-8X Series Chassis.

DP-85 CHASSIS TROUBLESHOOTING

1.) No Raster and No Power (How to check Diagnosis LED's)

No

Raster

B

No

(Deflection PWB)

Is Red LED

"Blinking"?

Protection

Yes

(Control PWB)

Is Power

Indicator Red LED

"on"? DM09

Yes

(Power PWB)

Is Click shound of

relay heard?

S901

Yes

(Deflection PWB)

Check Diagnosis

Red LED

No

A

No

Is Red LED "OFF"?

No means ON but

NOT Blinking.

If Blinking, go to

"B"

(Power PWB)

Check

DIAGNOSIS

Red LED

(Power PWB)

Protection

No

Yes

C

(Deflection PWB)

1. Trun OFF Power SW.

2. Turn ON again after several
minutes and carefull observe
ALL green LED's

(Deflection PWB)

Did 5 green LED's

turn OFF

same Time?

No

Yes

D

(Deflection PWB)

1. Trun OFF Power SW.

2. Turn ON again after several
minutes and carefull observe
ALL green LED's

Didn't

Light at

(Deflection PWB)

ALL

Did 5 green LED's

turn OFF

same Time?

No

Yes

F

G E

R

PAGE 09-0 1

TROUBLE SHOOTING (NO RASTER NO POWER DP-8X Series Chassis.

DP-85 CHASSIS TROUBLESHOOTING

1.) No Raster and No Power

A

(Signal PWB)

Is Voltage

at pin (33) of

I001 5V?

(Signal PWB)

Is Voltage

at pin (53) of

I0015Vdc?

(Signal PWB)

Check Q007

(Power PWB)

D960, S901

(Signal PWB)

No Relay Click Heard

Yes

No

Yes

No

(Power PWB)

Green LEDs Should be ON

(Signal PWB)

Check

Q001, D007,

L001, L004

(Signal PWB)

Is Voltage

at pin (6) of I001?

AC Clock In

2.5Vdc?

Yes

(Signal PWB)

Check I001

I003 Reset IC

X001 Crystal

No

(Signal PWB)

Check

Q015, Q016

I003 Reset IC

X001 Crystal

(Power PWB)

I906, D909

(Deflection PWB)

B

(Deflection PWB)

Is Voltage at pin (5)

of IP01 21V-24V?

Yes

(Deflection PWB)

Has Protector

EP91 blown

Yes

(Deflection PWB)

Check

IP01, DP04,

Replace EP91

No

No

(Deflection PWB)

(Deflection PWB)

Check

DP02, RP05,

RP06, CP05

Check

IP01

PAGE 09-0 2

TROUBLE SHOOTING (NO RASTER NO POWER DP-8X Series Chassis.

DP-85 CHASSIS TROUBLESHOOTING

1.) No Raster and No Power

(Power PWB)

C

All HOT Ground All HOT Ground

(Power PWB)

Check D907

Replace I901

(Power PWB)

Check

I901, D961,

Shorts on B+ Lines

Replace E992

Yes

(Power PWB)

No

Is Voltage at pin (5) of

I901 21V-24V?

(Power PWB)

R

All HOT Ground All HOT Ground

Yes

(Power PWB)

No

Has protector

E992 blown

(Power PWB)

Check

F901, R902,

D963, R907

R908, C914, I901

(Power PWB)

Check
I901, R912,
R913, R914

PAGE 09-0 3

TROUBLE SHOOTING (NO RASTER NO POWER DP-8X Series Chassis.

DP-85 CHASSIS TROUBLESHOOTING

1.) No Raster and No Power

(Deflection PWB)

D

All LED's Going OF
at the same time.

(Deflection PWB)

Does raster appear

with G and K of QP05

shorted?

Yes

No

(Deflection PWB)

Is base voltage

Q751 normal?

(0.45Vdc)

Yes

(Sub Deflection PWB)

Check I702

No

pin (18) Hout.
pin (16) Def HVcc
pin (3) -SDA2 (Data)

pin (4) -SCL2 (Clock)

(Deflection PWB)

Q701, QP08, DP41

(Deflection PWB)

Check

QP05

E

(Power PWB)

Does raster appear

with G and K of

Q913 shorted?

(Power PWB)

Check Q913

(Deflection PWB)

F

(Power PWB)

All LED's Going OF
at the same time.

Yes

(Deflection PWB)

Are voltages of both

ends of T751

(primary side) normal?

No

(Power PWB)

Q913, I905, D954, D961,
I904, Q915, D955

(Deflection PWB)

DP22 (+130V)
Check
EP98, DP11,
Q777, QH01, TH01,
DH11,etc.

28V

Yes

Check

(Deflection PWB)

No

Check
T751, R754, R755,
EP96, LP13

(Deflection PWB)

Q777, QH01,T751, T752

(Deflection PWB)

DP15 (+13V)
Check
EP94, IP03,
Vertical Out I601, Q655,
Q656, etc.

Check

(Deflection PWB)

Find which LED is

going Dark or OFF.

(Other LED's are going OFF a little

latter)

One LED Going OFF a little before the
others.

(Deflection PWB)

DP16 (-13V)
Check
EP95, QP01,
Vertical Out I601, QK01,
UKDG,etc.

(Deflection PWB)

DP15 (+28V)
Check
EP96, DP12,
IK04, IK05, etc.

(Deflection PWB)

DP21 (-28V)
Check
EP97, DP13,
IK04, IK05, etc.

PAGE 09-0 4

TROUBLE SHOOTING (NO RASTER NO POWER DP-8X Series Chassis.

DP-85 CHASSIS TROUBLESHOOTING

1.) No Raster and No Power (GREEN LED's going OFF)

(Power)
Find which LED is going Dark and OFF
(Other LED's are going OFF a little later)

(Power)

D924 is Dark

(LNB)

(Power)

D943 is Dark

(+5VS)

(Power)

D962 is Dark

(-5VS)

(Power)

D928 is Dark

(-5VS)

PMQ1,

PMQ2, PMQ3

disconnect

PMQ1,

PMQ2, PMQ3

disconnect

PMQ1,

PMQ2, PMQ3

disconnect

PMQ1,

PMQ2, PMQ3

disconnect

(Power)

Is D924

dark?

(Power)

Is D943

dark?

(Power)

Is D962

dark?

(Power)

Is D928

dark?

One LED Going OFF a little

G

before the others.

Dark

Bright

Dark

Bright

Dark

Bright

Dark

Bright

(Power)

Check LNB line

I912, Q904, Q903

D926, D921, etc.

Check DM-1

(Power)

Check +5VS line

I909, D942, etc.

Check DM-1

(Power)

Check -5VS line

Q909, etc.

Check DM-1

Check Standby

+12V line

(Power) D927, I907

(Signal PWB) Q001,

I001, etc

Check DM-1

(Power)

D945 is Dark

(+3.3VS)

(Power)

D947 is Dark

(D+3.3VS)

(Power)
D971 (TV5V)
Check D970,

I914, Q914, etc.

PMQ1,

PMQ2, PMQ3

disconnect

PMQ1,

PMQ2, PMQ3

disconnect

(Power)
D930 (TV9V)
Check D929,

I908, Q914, etc.

(Power)

Is D945

dark?

Bright

(Power)

Is D947

dark?

Bright

(Power)

(Audio R+21V)

Check +21V line

E995, D912,

I402, etc.

Dark

Dark

D920

(Power)

Check +3.3VS line

I911, D946, etc.

Check DM-1

Check Standby

D+3.3VS line

I911, D946, etc

Check DM-1

(Power)

D919

(Audio F+28V)

Check +28V line

E994, D911,

I401, I403, etc.

PAGE 09-0 5

DP-85 HDTV DM-1 TO CHASSIS INTERFACE

DM-1

Module

PMQ2

Molex type

PMQ3

Molex type

PMT1

D:LUMBP

PMS1

LUM18P

TV Reset

13

GND (IP)

1

PMS2

LUM14P

CV. Sync

7

H. Sync

2

LUM12P

V. Sync

4

PMZ

Power Fail >20V

9
2
3
8

6

10

7 7
2
5

4
6

8
10
12
14

12
11
10

9

1

3

5

12 12
10

8

+33VS
+12VS

-5VS

+3.3VS

+5VS

VIDEO (NTSC)

L-Audio (NTSC)

R-Audio (NTSC)

Right (Front)

Left (Front)

R_Sur (R-Rear)

L_Sur (L-Rear)

Center

LFE (Sub Woofer)

IP.Request

IP.Clock

IP.TX
IP.RX

Y

V (Cr)

U (Cb)

2H.Y

2H.PR

2H. PB

9
2
3
8

6

10

2
5

4
6

8
10
12
14

12
11
10

9

1

3

5

10

8

PTV MAIN CHASSIS

Power Supplies
from
PTV to DM-1

Power Supplies
from
PTV to DM-1

NTSC (1H)
AUDIO &
VIDEO

ATSC
Dolby Digital 5.1
(6-Ch Audio)

Digital
Communications

NTSC IN
(1H) Video

ALL SIGNALS
FROM DM-1
1080I/480P

NOTE:

All pins shown in
the Schematic for
the Lum type
connectors
between the DM-1
module and the
main chassis are
backwards .

The pins
depicted here
are correct.

NOTE:

Lum type
connectors are
backwards:
PMF, PMS1, PMS2,
PMT1 and PMZ

All Molex type
connectors are
O.K.
PMQ1, PMQ2 and
PMQ3

WARNING:

All signals except "data communications" have matching "reference" output. To measure,
hook scope probe to convenient ground and measure signal. The "reference" for any
given signal is the same but 180 degrees out of phase. Always consult the schematic for
the actual pin number of the desired signal.

scope to the REF line will cause damage to components.

All analog signals between DM-1 and PTV Chassis are differential outputs.

Connecting the ground clip of a grounded

PAGE 09-0 6

DM-1 TROUBLESHOOTING SYMPTOMS, and ACTIONS (See drawing Page 09-06)

SYMPTOM ACTION COMMENTS

Suspected failure of DM-1.

(Power L.E.D. does not blink
twice when AC Power is ap­plied.) Note: New DM-1 modules
do NOT blink the power LED.

DM-1 boots up OK but TV does
not turn on. (Power LED blinks

twice when AC Power is ap­plied). Note: New DM-1 modules
do NOT blink the power LED.

Chassis powers on, OSD pre­sent but no video.

PWR_FAIL must be
>20vdc. Check all power
supplies (+5, +3.3, -5,
+12 & +33VDC) from
PTV to DM-1.
(See drawing) PMQ-2,
PMQ-3

Check communications
activity between DM-1 &
PTV on PMS-2

(See drawing for pin #'s).

1. Check signal sources.

2. Apply ATSC/BSS
signal, check for
"Link Locked LED"
(inside DM-1).

3. If Link LED is on (Link
Locked), check
2H-Y, H&V at PMZ.
(See drawing)

Power L.E.D. blinks
twice when AC Pwr.
is applied if DM-1
boots up properly.

Note: New DM-1
modules do NOT
blink the power LED.

DM-1 turns on PTV
Chassis.

Functional DM-1 will
generate OSD with­out a signal source
attached.

Chassis powers on, but no
OSD. Power LED blinks twice
when AC Power is applied,

(DM-1 is functional).
Note: New DM-1 modules do
NOT blink the power LED.

Video from ATSC/BSS plays
OK, but RF NTSC does not
play.

Check 2H-Y, H&V at
PMZ (See drawing). If
signals OK, trouble­shoot PTV chassis.

1. Check RF NTSC signal
source.

2. Check NTSC
composite video at
PMT-1 (See drawing)

3. Check Sync, Y, R-Y &
B-Y at PMS-2
(See drawing)

A functional DM-1
will always make
OSD if chassis is OK.
Must press button
on remote to see
OSD.

Make sure active
channel selected.

Page 09-07

WAVEFORMS FOR DM-1 TROUBLESHOOTING (See Page 09-06 for DC Voltages)

After checking all the DC voltages between the DM-1 and the Main chassis, investigate the Waveforms.

Check on Connector PMS2 Pin 3 (IP. Request)

Check on Connector PMS2 Pin 4 (IP. Clock)

WARNING!

If measuring from any PMZ Connector as Reference, other that Ground, make sure the Scope isn’t grounded.
Damage to the DM-1 module will occur. Reference Pin example: Pin 2,4,6,8,10, & 12

Check on Connector PMS2 Pin 5 (IP. TX)

Waveform only available during Power On and Off

Check on Connector PMS2 Pin 6 (IP. RX)

WAVEFORMS FOR DM-1 VIDEO TROUBLESHOOTING
(See Page 09-06 for DC Voltages)

Check on Connector PMT1 Pin 1 (Video NTSC)

Check on Connector PMS2 Pin 14 (NTSC Y) Check on Connector PMS2 Pin 10 (NTSC U Cb)

Check on Connector PMS2 Pin 12 (NTSC V Cr)

Page 09-08