JVC HV-28P37SJE, HV-28P37SUE Service Manual

YA010200312

SERVICE MANUAL

COLOUR TELEVISION

HV-28P37SUE,
HV-28P37SJE

BASIC CHASSIS

MM

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42

COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED

No.YA010

2003/12

SPECIFICATION

Item

Dimensions ( W × H × D ) 85.4cm × 50.8cm × 49.3cm
Mass 38.0kg
TV RF System CCIR (B/G, I, D/K, L/L') CCIR (B/G, I, D/K, L)
Colour System PAL / SECAM / NTSC (Only EXT mode)
Stereo System A2 (B/G, D/K), NICAM (B/G, I, D/K, L)
Teletext System FLOF (Fastext)

TOP (German system)
WST(World standard system)

Receiving Frequency VHF

Receiving channels E2-E12, E21-E69, S1-S41,

Intermediate Frequency VIF

Colour Sub Carrier
Frequency

Power Input AC220V ~ AC240V, 50Hz
Power Consumption 127W(Average), 2W(Standby)
Aerial Input Terminal 75Ω unbalanced, coaxial
Picture Tube Visible size : 66cm (Measured diagonally) H : 58.3cm × V : 33.0cm
High Voltage 31.0kV (+0.2kV / -0.2kV) (at zero beam current, FULL mode)
Speaker 13cm × 6.5cm, oval type × 2
Audio Power Output 10W + 10W
External

terminal

Audio output (Variable) 0~1000mV(rms), Low impedance, RCA pin jack × 2
Headphone Stereo mini jack (3.5mm) × 1
Remote Control Unit RM-C1800 (AA / R06 dry cell battery × 2)

Design & specifications are subject to change without notice.

EXT-1 (Input/Output) 21 pin Euro connector (SCART socket)

EXT-2 (Input/Output) 21 pin Euro connector (SCART socket)

EXT-3 (Input) 21 pin Euro connector (SCART socket)

EXT-4 (Input) COMPONENT

EXT-5 (Input) S-VIDEO

SECAM

VIDEO

AUDIO

VIDEO
AUDIO

47MHz ~ 470MHz

UHF

470MHz ~ 862MHz

CATV

116MHz ~ 172MHz, 220MHz ~ 469MHz

X, Y, Z, Z+1, Z+2, ITALY (A-H, H+1, H+2),
F2-F10, F21-F69, R1-R12, R21-R69

38.9MHz (B/G, D/K, I , L), 33.95MHz (L')

SIF

33.4MHz (5.5MHz:B/G),

32.9MHz (6.0MHz:I)

32.4MHz (6.5MHz:L, D/K),

40.45MHz (6.5MHz:L')

PAL

4.43MHz

4.40625MHz / 4.25MHz

NTSC

3.58MHz / 4.43MHz

• Video input, Audio L/R inputs and RGB inputs are available.

• TV broadcast outputs (Video and Audio L/R) are available.

• Video input, S-video (Y/C) input, Audio L/R inputs and RGB inputs areavailable.

• Video and Audio L/R outputs are available.

• T-V LINK functions are available.

• Video input, S-Video (Y/C) input and Audio L/R inputs are available.
RCA pin jack × 3

Y : 1V(p-p), Positive (Negative sync provided), 75Ω
PB/PR : 0.7V(p-p), 75Ω

• Progressive-scanning signals (525p, 625p, 1125i, 1250i) are available.
500mV (rms), High impedance RCA pin jack × 2

Mini-DIN 4 pin × 1
Y : 1V(p-p), Positive (Negative sync provided), 75Ω
C : 0.286V(p-p) (Burst signal), 75Ω
1V(p-p), Positive (Negative sync provided), 75Ω RCA pin jack × 1
500mV(rms), Low impedance, RCA pin jack × 2

HV-28P37SUE HV-28P37SJE

Content

47MHz ~ 470MHz
470MHz ~ 862MHz

---------­E2-E12, E21-E69, S1-S41,

X, Y, Z, Z+1, Z+2,
IR A-J, F21-F69

33.4MHz (5.5MHz:B/G),

32.9MHz (6.0MHz:I)

32.4MHz (6.5MHz:L, D/K),

1-2 (No.YA010)

SECTION 1

PRECAUTION

1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK]

(1) The design of this product contains special hardware,

many circuits and components specially for safety
purposes. For continued protection, no changes should be
made to the original design unless authorized in writing by
the manufacturer. Replacement parts must be identical to
those used in the original circuits. Service should be
performed by qualified personnel only.

(2) Alterations of the design or circuitry of the products should

not be made. Any design alterations or additions will void
the manufacturer's warranty and will further relieve the
manufacturer of responsibility for personal injury or
property damage resulting therefrom.

(3) Many electrical and mechanical parts in the products have

special safety-related characteristics. These
characteristics are often not evident from visual inspection
nor can the protection afforded by them necessarily be
obtained by using replacement components rated for
higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in
the parts list of Service manual. Electrical components

having such features are identified by shading on the
schematics and by ( ) on the parts list in Service
manual. The use of a substitute replacement which does

not have the same safety characteristics as the
recommended replacement part shown in the parts list of
Service manual may cause shock, fire, or other hazards.

(4) Don't short between the LIVE side ground and

ISOLATED (NEUTRAL) side ground or EARTH side
ground when repairing.

Some model's power circuit is partly different in the GND.
The difference of the GND is shown by the LIVE : ( ) side
GND, the ISOLATED (NEUTRAL) : ( ) side GND and
EARTH : ( ) side GND.
Don't short between the LIVE side GND and ISOLATED
(NEUTRAL) side GND or EARTH side GND and never
measure the LIVE side GND and ISOLATED (NEUTRAL)
side GND or EARTH side GND at the same time with a
measuring apparatus (oscilloscope etc.). If above note will
not be kept, a fuse or any parts will be broken.

(5) If any repair has been made to the chassis, it is

recommended that the B1 setting should be checked or
adjusted (See B1 POWER SUPPLY check).

(6) The high voltage appli ed to the picture tube must confo rm

with that specified in Service manual. Excessive high
voltage can cause an increase in X-Ray emission, arcing
and possible component damage, therefore operation
under excessive high voltage conditions should be kept to
a minimum, or should be prevented. If severe arcing
occurs, remove the AC power immediately and determine
the cause by visual inspection (incorrect installation,
cracked or melted high voltage harness, poor soldering,
etc.). To maintain the proper minimum level of soft X-Ray
emission, components in the high voltage circuitry
including the picture tube must be the exact replacements
or alternatives approved by the manufacturer of the
complete product.

(7) Do not check high voltage by d rawing an arc. Use a high

voltage meter or a high voltage probe with a VTVM.
Discharge the picture tube before attempting meter
connection, by connecting a clip lead to the gr ound frame
and connecting the other end of the lead through a 10kΩ
2W resistor to the anode button.

(8) When service is required, obse rve the original lead dress.

Extra precaution should be given to assure correct lead
dress in the high voltage circuit area. Where a short circuit
has occurred, those components that indicate evidence of
overheating should be replaced. Always use the
manufacturer's replacement components.

(9) Isolation Check (Safety for Electrical Shock Hazard)

After re-assembling the product, always perform an
isolation check on the exposed metal parts of the cabinet
(antenna terminals, video/audio input and output terminals,
Control knobs, metal cabinet, screw heads, earphone jack,
control shafts, etc.) to be sure the product is safe to operate
without danger of electrical shock.

a) Dielectric Strength Test

The isolation between the AC primary circuit and all metal
parts exposed to the user, particularly any exposed metal
part having a return path to the chassis should withstand a
voltage of 3000V AC (r.m.s.) for a period of one second. (.
. . . Withstand a voltage of 1100V AC (r.m.s.) to an
appliance rated up to 120V, and 3000V AC (r.m.s.) to an
appliance rated 200V or more, for a period of one second.)
This method of test requires a test equipment not generally
found in the service trade.

b) Leakage Current Chec k

Plug the AC line cord directly into the AC outlet (do not use
a line isolation transformer during this check.). Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal part of the cabinet, particularly
any exposed metal part having a return path to the chassis,
to a known good earth ground (water pipe, etc.). Any
leakage current must not exceed 0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.2mA AC
(r.m.s.).

Alternate Check Method

Plug the AC line cord directly into the AC outlet (do not
use a line isolation transformer during this check.). Use
an AC voltmeter having 1000Ω per volt or more
sensitivity in the following manner. Connect a 1500Ω
10W resistor paralleled by a 0.15µF AC-type capacitor
between an exposed metal part and a known good earth
ground (water pipe, etc.). Measure the AC voltage
across the resistor with the AC voltmeter. Move the
resistor connection to each exposed metal part,
particularly any exposed metal part having a return path
to the chassis, and measure the AC voltage ac ross the
resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Any voltage measured must
not exceed 0.75V AC (r.m.s.). This corresponds to

0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.3V AC
(r.m.s.). This corresponds to 0.2mA AC (r.m.s.).

AC VOLTMETER
(HAVING 1000 /V,
OR MORE SENSITIVITY)

0.15 F AC-TYPE

PLACE THIS PROBE

1500 10W

GOOD EARTH GROUND

ON EACH EXPOSED
METAL PART

(No.YA010)1-3

1.2 SAFETY PRECAUTIONS [FOR UK]

(1) The design of this product contains special hardware and many circuits and compon ents specially for safety purposes. For

continued protection, no changes should be made to the original design unless auth orized in writing by the manufacturer.
Replacement parts must be identical to those used in the original circuits. Servi ce should be performed by qualified pe rsonnel
only.

(2) Alterations of the design or circuitry of the product should not be made. Any design alterations or additions will void the

manufacturer's warranty and will further relieve the manufacturer of responsibility for personal injury or property damage
resulting therefrom.

(3) Many electrical and mechanical parts in the product have special safety-related characteristics. These characteristics are often

not evident from visual inspection nor can the protection afforded by them necessary be obtained by using replacement
components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are
identified in the Parts List of Service Manual. Electrical compo nents having such features are identified by shading on the
schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the
same safety characteristics as the recommended replacement part shown in the Parts List of Service Manual may cause shock,
fire, or other hazards.

(4) The leads in the products are routed and dressed with ties, clamps, tubing’s, barriers and the like to be separated from live parts,

high temperature parts, moving parts and / or sharp edges for the prevention of electric shock and fire hazard. When service is
required, the original lead routing and dress should be observed, and it should be confi rmed that they have been returned to
normal, after re-assembling.

WARNING

(1) The equipment has been designed and manufactured to meet international safety standards.
(2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
(3) Repairs must be made in accordance with the relevant safety standards.
(4) It is essential that safety critical components are replaced by approved parts.
(5) If mains voltage selector is provided, check setting for local voltage.

1-4 (No.YA010)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 21-pin Euro connector (SCART) : EXT-1/EXT-2/EXT-3 Pin No. Signal designation Matching value EXT-1 EXT-2 EXT-3

1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used
2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2) Used (R3)
3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used
4 AUDIO GND Used Used Used
5 GND (B) Used Used Used
6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2) Used (L3)
7 B input 700mV
8 FUNCTION SW

(SLOW SW)

Low : 0V-3V
High : 8V-12V, High impedance

9 GND (G) Used Used Used

10 SCL / T-V LINK Not used Used
11 G input 700mV

12 SDA Not used Used (SDA2) Not used
13 GND (R) Used Used Used
14 GND (YS) Used Not used Not used
15 R / C input R : 700mV

C : 300mV
16 Ys input (FAST SW) Low : 0V-0.4V, High : 1V-3V, 75Ω Used Used Not used
17 GND (VIDEO output) Used Used Used
18 GND (VIDEO input) Used Used Used
19 VIDEO output 1V
20 VIDEO / Y input 1V

(P-P)
(P-P)

21 COMMON GND Used Used Used

(P-P= Peak to Peak, B-W= Blanking to white peak)

, 75Ω Used Used Not used

(B-W)

Used Used Used

Not used

(SCL2 / TV-LINK)

, 75Ω Used Used Not used

(B-W)

(B-W)
(P-P)

, 75Ω

, 75Ω

Used (R) Used (C2/R) Used (C3)

(Negative sync), 75Ω Used (TV OUT) Used (LINE OUT) Not used
(Negative sync), 75Ω Used Used Used

[Pin assignment]

20 18 16 14 12 10 8 6 4 2

21 19 17 15 13 11 9 7 5 3 1

2.2 MAIN DIFFERENCE LIST

Item

HV-28P37SUE HV-28P37SJE

Content

POWER CORD QMPN160-185-JC QMPK130-185-JC

TV RF System CCIR (B/G, I, D/K, L/L') CCIR (B/G, I, D/K, L)
Receiving Frequency VHF 47MHz ~ 470MHz ←

UHF 470MHz ~ 862 MHz ←

CATV 116MHz ~ 172MHz, 220MHz ~ 469MHz ---

Receiving channels E2-E12, E21-E69, S1-S41,

X, Y, Z, Z+1, Z+2, ITALY (A-H, H+1, H+2),
F2-F10, F21-F69, R1-R12, R21-R69

E2-E12, E21-E69, S1-S41,
X, Y, Z, Z+1, Z+2,
IR A-J, F21-F69

(No.YA010)1-5

2.3 FEATURES ADVANTAGES OF D.I.S.T

D.I.S.T. (Digital Image Scaling Technology) realizes a flicker-free, high-resolution picture(1 250i/75Hz).
It can accept virtually all currently used video signal formats, reproducing them with high resolution and improved detail that is very
clear to the viewer. The signal path of D.I.S.T. from input to output can be divided into 5 components: (1) Interl ace-Progressive
Converter; (2) Formatter; (3) Enhancer LSI; (4) Driver; and (5) Display Device.

Structure of D.I.S.T

1

PAL 625i

NTSC 525i

PAL 625p

Source signal format

Compared with current 100Hz technology, the advantages of D.I.S.T. mean that:

(1) Diagonal lines are smooth and free from jaggies since the number of scanning lines has been increased to 1250i.
(2) There is no field flicker, since the Formatter raises the frame rate to 75Hz.
(3) There is no line flicker, thanks to the I-P conversion to a progressive signal.
(4) Scenes with movement are also smooth, thanks to both I-P conversion and the formatting process.
(5) Vivid, sharp contours and solid presen ce are ma de possible by the suppo rt of additio nal technologies such as th e Enhan cer

LSI "Super DigiPure" while faithful reproduction without blur or smear is ensured by the Wide-Range CRT Driver.

(6) The refined signal displayed on an appropriate devi ce su ch as a CRT or PDP will provide unprecedented picture quality and

the highest levels of resolution.

(7) Global compatibility can be enjoyed with a maximum 1500i/60Hz display for NTSC DVD or VCR playback on PAL, as well as

other versatile signal sources including PAL, NTSC, DVD or D-VHS.

MULTI SCREEN FUNCTION

POP (Picture-Out-Picture)

Back programs can be seen at once. Three programs are displayed on screen right-hand side besides the program (VHF / UHF
/ CATV)received now.

INDEX

A favorable program can be selected from the 12 previews on the screen.

SPLIT

Different images, such as a program and video, can be simultaneously seen on two screens.

NATURAL FLAT

It became legible from any position by CRT with few reflection and reflect lumps on the flat screen.

Super Digipure

Super Digipure function create a natural-looking picture by eliminating unnecessary edges from high-contrast and crisp images.
And displayes fast-moving pictures more smoothly and naturally on the screen.

COMPONENT VIDEO INPUT TERMINAL

Since the component video input terminal is equipped, it reappears direct without deterriorating the signal from DVD or Video player.

NTSC 525p

I-P Converter

Core of D.I.S.T

2

Formatter

3

Enhancer LSI
"Super Digipure"

4

Wide Range
CRT Driver

Supporting Components

5

Fine
Pitch
CRT

1-6 (No.YA010)

2.4 FUNCTIONS

 FRONT PANEL

 REAR PANEL

1 2 3

Remote control sensor

1

Power lamp

2

3

Power button

EXT-

4

EXT-

1

Y

L

EXT-

S

E

P

X

L

T

5

R

2

S

PrPbR

EXT-

3

S

L

AUDIO OUT

R

SIDE CONTROL JACK

AV TERMINAL BOARD

8

9

EXT-

Y

PrPbR

4

EXT-1

L

EXT-2

11

12

S

13

EXT-3

S

4

S

5

6

4

Headphone jack

5

P / buttons, -/+ buttons

6

Volume button

EXT-5 terminal

7

E

P

X

T

5

10

7

L

R

8

Aeriel terminal

9

EXT-4 terminal

10

AUDIO OUT terminal

11

EXT-1 terminal

12

EXT-2 terminal

13

EXT-3 terminal

L

R

AUDIO OUT

(No.YA010)1-7

 REMOTE CONTROL UNIT

1

2

3

4

5

6

7

8

9

10

123

4

56

9

8

7

0

AV

3D

ZOOM

TV

MENU

OK

BACK

11

12

13

14
15

16

17

18

19

20

VCR / TV / DVD

switch

1

Muting key

2

Number key

3

Information key

Zoom key

4

3D Sound key

5

TV key

6

Function (UP/DOWN, RIGHT/LEFT) keys

7

Text key

8

Programme / keys

9

VCR/DVD/Text control key

10

11

Standby key

12

VCR/TV/DVD Switch

13

AV key

14

Colour key

15

Multi screen key

16

Freeze/Swap key

17

MENU key

18

OK key

19

BACK key

20

Volume -/+ keys

1-8 (No.YA010)

2.5 TECHNICAL INFORMATION

2.5.1 SYSTEM BLOCK DIAGRAM

MAIN PWB

IC1781[10]

MAIN MEMORY

SCL0 / SDA0

DIST PWB

IC1301[0Z]

RGB PROCESSOR

MAIN PWB

IC1721[10]

IP LATCH

IC3001[0Z]

MAIN CHROMA

DEMODULATOR

IC1701[10]

MAIN DAC

IC0212[0H]

DAC1

SCL1 / SDA1

IC801[0S]

SUB CHROMA

DEMODULATOR

IC001[0M]

MAIN MICRO COMPUTER

DEF OSC PWB

IC0161[0H]

DEF CONTROL

IC802[0S]

SUB DIGITAL

COMB FILTER

AV SW PWB

MAIN PWB

TU1001[10]

SCL3 / SDA3

TUNER

IC101[0S]

AV S W

AV SW PWB

IC1251[10]

COMPONENT VIDEO

SW

IC1201[10]

SYNC SEP

IC1001[0Z]

DIST PROCESSOR

DIST PWB

IC1101[10]

MULTI SOUND

PROCESSOR

SCL2 / SDA2

(No.YA010)1-9

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER

(1) Unplug the power plug.
(2) Remove 13 screws [A] as shown in the Fig. 3.
(3) Withdraw the REAR COVER toward you.

NOTE:

When reinstalling the rear cover, carefully push it i nward after
inserting the chassis into the rear cover groove.

3.1.2 REMOVING THE SIDE CONTROL JACK ASSY

• Remove the REAR COVER.
(1) Remove 1 screw [B] as shown in Fig.3.
(2) Slightly pull the SIDE CONTROL JACK ASSY toward you,

and detach the claw from FRONT CABINET. Then it can be
removed.

(3) Then disconnect the conne ctor [F] and [CN 016] as shown

in Fig.1.

3.1.3 REMOVING THE SIDE CONTROL PWB

• Remove the REAR COVER.

• Remove the SIDE CONTROL JACK ASSY.
(1) Remove 3 claws [C] from backside of the SIDE CONTROL

JACK ASSY as shown in Fig.1.

(2) Remove the SIDE CONTROL PWB from the SIDE

CONTROL JACK ASSY.

3.1.7 CHECKING THE PW BOARD

(1) Pull out the MAIN CHASSIS (Refer to REMOVING THE

MAIN CHASSIS).

(2) Erect the MAIN CHASSIS vertically so that you can easily

check the PW Board from back side.

3.1.8 CAUTION

(1) When erecting the MAIN CHASSIS, be careful so that

there will be no contacting with other PW Board.

(2) Before turning on power, make sure that the wire connector

is properly connected.

(3) When conducting a check with power supplied , be sure to

confirm that the CRT EARTH WIRE (BRAIDED ASS'Y) is
connected to the CRT SOCKET PW board.

3.1.9 WIRE CLAMPING AND CABLE TYING

(1) Be sure to clamp the wire.
(2) Never remove the cable tie used for tying the wires

together.
Should it be inadvertently removed, be sure to tie the wires
with a new cable tie.

3.1.4 REMOVING THE AV TERMINAL BOARD

• Remove the REAR COVER.
(1) Remove 7 screws [D] as shown in Fig.3.
(2) Remove 2 claws [E] at the bottom of the AV TERMINAL

BOARD as shown in Fig.2.

(3) Shift the AV TERMINAL BOARD slightly in the direction of

arrow [G], and remove it as shown in Fig.2.

3.1.5 REMOVING THE MAIN CHASSIS

• Remove the REAR COVER.
(1) Slightly raise the MAIN CHASSIS, and release two claws

at the bottom of both sides of the MAIN CHASSIS.

(2) Then withdraw the MAIN CHASSIS backward from the

FRONT CABINET (If necessary, detach the wire clamp,
connectors etc.).

3.1.6 REMOVING THE MAIN SPEAKER

• Remove the REAR COVER.
(1) Remove 2 screws [H], and detach the MAIN SPEAKER

HOLDER as shown in Fig.3 (When removing 2 screws [H]
of the MAIN SPEAKER HOLDER, the lower side screw

first, and then upper one).
(2) Remove 2 screws [J] attached the MAIN SPEAKER.
(3) Follow the same steps when disassemble the other hand

MAIN SPEAKER.

F

CN016

AV TERMINAL
BOARD

C

SIDE CONTROL

PWB

C

(Back view)

Fig.1

G

E

E

1-10 (No.YA010)

Fig.2

FRONT CABINET

CRT SOCKET
PWB

LINE FILTER PWB

K

MI-COM
PWB

MAIN SPEAKER

HOLDER

L

LF BASE

MAIN SPEAKER

CLAW

H

J

POWER & DEF. PWB

M

HVT HOLDER

MAIN CHASSIS

Fig.1

REAR COVER

FRONT
CONTROL
PWB

CONTROL
BASE

B

CLAW

MAIN PWB

DIST PWB

AV SW PWB

EHT PWB

DEF OSC PWB

AV TERMINAL
BOARD

D

POWER CORD

A

Fig.3

(No.YA010)1-11

3.2 MEMORY IC REPLACEMENT

3.2.1 MEMORY IC

This TV use the memory IC. In the memory IC, there are memorized data for correctly operating for the video and deflection circuits
and more. When replacing the memory IC, be sure to use IC written with the initial values of data.

3.2.2 PROCEDURE FOR REPLACING MEMORY IC

1. Power off

Turn the power off and unplug the power plug.

2. Replace IC.

Be sure to use the memory IC written with the initial se tting
data.

SERVICE MENU

1. IF

3. AUDIO

5. VSM PRESET

7. 3DNR

9. SHIPPING(OFF)

1-9 : SELECT i : EXIT

2. V/C

4. DEF

6. STATUS

8. IP

0. BUS FREE

3. Power on

Connect the power plug and turn the power on.

4. Setting of recieve channels

Fig.1

Set the receive channels. For setting, refer to the OPERATING
INSTRUCTIONS.

5. User settings

SYSTEM CONSTANT SET

1. P MUTE NO

Check the user setting items according to "FACTORY
SHIPPING" at page later. If these are different, set the correct
value.

6. Check the SYSTEM CONSTANT items

(1) Before operating the SERVICE MENU, con firm that the

setting of VCR/TV/DVD switch of the REMOTE
CONTROL UNIT is at the "TV" side. If this switch have
not been properly set, you cannot enter the SERVICE
MENU.

(2) Press the [INFORMATION ] key and [MUTING] key on

the REMOTE CONTROL UNIT simultaneously.
(3) The SERVICE MENU screen on Fig.1 will be displayed.
(4) While the SERVICE MENU is displayed, again press the

[INFORMATION] key and [MUTING] key simultaneously.

Then display the SYSTEM CONSTANAT SET screen as

shown in Fig.2.
(5) Refer to the "SETTING VALUE OF SYSTEM

CONSTANT SET", and check the setting items. when it

differ, adjust it with the [FUNCTION (UP/DOWN)] key

and adjust it with the [FUNCTION (RIGHT/LEFT)] keys.
(6) Press the [MENU] key to memorize the setting value.
(7) Press the [INFORMATION] key twice to return to the

normal screen.

7.SERVICE MENU setting

Verify what to set in the SERVICE MENU, and set whatever is
necessary. Refer to the ADJUSTMENT for setting.

MUTING

SERVICE MENU

Enter

INFORMATION

Exit SERVICE MENU

FUNCTION

UP / DOWN

Select the setting item

- / + : STORE i : EXIT

MENU

Fig.2

123

4756

9

8

0

AV

3D

ZOOM

TV

MENU

OK

BACK

VCR/TV/DVD

SWITCH

MENU

Memorize the

adjustment data

FUNCTION

RIGHT/LEFT

Adjust the value

1-12 (No.YA010)

3.3 FACTORY SHIPPING SETTING

3.3.1 SETTING VALUE OF SYSTEM CONSTANT SET
Setting item Variable range Setting value

1. P MUTE YES / NO NO

3.3.2 SETTING OF REMOTE CONTROL UNIT

Setting item Setting value Setting item Setting value

POWER ON 3D SOUND OFF
VOLUME 10 ZOOM PANORAMIC
CHANNEL 1 MULTI SCREEN OFF

3.3.3 SETTING OF MENU SCREEN

Setting item Setting value Setting item Setting value

PICTURE SETTING FEATURES

PICTURE MODE BRIGHT SLEEP TIMER OFF
CONTRAST Centre BLUE BACK ON
BRIGHT Centre CHILD LOCK ID:-----, ALL CH OFF
SHARP Centre APPEARANCE TYPE A
COLOUR Centre SETUP
HUE Centre LANGUAGE ENGLISH
COLOR TEMP. COOL PICTURE TILT Centre
DIGITAL VNR AUTO(LOW) EDIT / MANUAL PRESET CH only
Super Digipure AUTO others : Blank
MOVIE THEATER AUTO DECORDER(EXT-2) OFF
Colour Digipure ON EXT SETTING
COLOR SYSTEM Depend on preset channel S-IN EXT-2
4:3 AUTO ASPECT PANORAMIC ID LIST Blank

SOUND SETTING DUBBING EXT-2
BASS Centre
TREBLE Centre
BALANCE Centre
HEADPHONE VOLUME 10
3D CINEMA SOUND ON

SURROUND MID

BASS BOOST MID

3.3.4 SERVICE MENU SETTING ITEMS
Service menu Sub menu item Description

1. IF 1. VCO, 2. ATT

2. V/C 1. CUT_OF_R ~ 15. RY_ANGLE

3. AUDIO 1. ERROR LIMIT ~ 21. CENT TRE It is no required for adjustment. Don't change the value.

4. DEF 1. FREE-RUN ~ 11. V. LIN

5. VSM PRESET 1. CONT ~ 8. WDR B

6. STATUS 1. SOFT ~ 4. IC It is no required for adjustment. Don't change the value.

7. 3DNR 1. YNR LIM ~ 90. HGCON21 It is no required for adjustment. Don't change the value.

8. IP 1. ASL GAIN ~ 70. BVMCORINGON It is no required for adjustment. Don't change the value .

9. SHIPPING Initialize the all data. It is no requirement for adjustment.

2

0. BUS FREE Stops the all I

C bus communication. It is no requirement for adjustment.

(No.YA010)1-13