Datasheet SK8.0L CA Datasheet (Philips)

Color Television Chassis

18690_000_090722.eps

090722

21SL921SL9

SK8.0L

CA

Contents Page

1. Revision List 2

2. Technical Specifications and Connections 2

3. Precautions, Notes, and Abbreviation List 3

4. Mechanical Instructions 7

5. Service Modes, Error Codes, and Fault Finding 8

6. Alignments 9

7. Circuit Descriptions 14

8. IC Data Sheets 15

9. Block Diagrams
PWB locations 23
Block Diagram Chassis 24
21SL9 Schematic Overview Chassis 25

10. Circuit Diagrams and PWB Layouts Diagram PWB
21SL9 Mono Carrier: Power Supply
21SL9 Mono Carrier: Frame Deflection (A2) 27 32-33
21SL9 Mono Carrier: Tuner (A3) 28 32-33
21SL9 Mono Carrier: AV Switch (A4) 29 32-33
21SL9 Mono Carrier: Audio amplifier (A5) 30 32-33
21SL9 Mono Carrier: CPU & Decoder (A6) 31 32-33
CRT Board (B) 34 35
Side AV Panel (D) 36

(A1) 26 32-33

©

Copyright 2010 Koninklijke Philips Electronics N.V.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic, mechanical,
photocopying, or otherwise without the prior permission of Philips.

Published by MB/JY 1064 BU TV Consumer Care, the Netherlands Subject to modification EN 3122 785 18961

2010-Apr-23

EN 2 SK8.0L CA1.

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2

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Revision List

1. Revision List

Manual xxxx xxx xxxx.0

• First release.

Manual xxxx xxx xxxx.1

• Chapter 1: Added full Connection overview.

• Chapter 5: Corrected text and mentioned part numbers.

• Chapter 6: Updated Factory Alignment Menu.

• Chapter 8: Updated data sheets.

2. Technical Specifications and Connections

Index of this chapter:

2.1 Technical Specifications

2.2 Directions for Use

2.3 Connection Overview

2.4 Chassis Overview

Note: Data below can deviate slightly from the actual situation,
due to the different set executions.

2.1 Technical Specifications

For on-line product support please use the links in Table 2-1.
Here is product information available, as well as getting started,
user manuals, frequently asked questions and software &
drivers.

Table 2-1 Described Model numbers

CTN Styling Published in:

21PT9470/44

21PT9470/55

21SL9 3122 785 18960

3122 785 18960

2.2 Directions for Use

You can download this information from the following websites:

http://www.philips.com/support
http://www.p4c.philips.com

2.3 Connection Overview

Note: The following connector color abbreviations are used

(acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy=
Grey, Rd= Red, Wh= White, and Ye= Yellow.

2.3.1 Side Connections

1 - Cinch: Video CVBS - In, Audio - In

Ye. - Video CVBS. 1 V

2 - Cinch: Video CVBS - In, Audio - In

Wh. - Audio L. 0.5 V
Rd. - Audio R. 0.5 V

2.3.2 Rear Connections

Figure 2-2 Rear Connections

3 - Aerial - In

. - F-connector. Coax, 75 Ω. D

4 - Monitor out Cinch: Video CVBS - Out

Ye. - Video CVBS. 1 V

5 - Audio out Cinch: Audio - Out

Wh. - Audio L. 0.5 V
Rd. - Audio R. 0.5 V

6 - CVI in Cinch: Video YPbPr - In (21" only)

Gn. - Video Y. 1 V
Bu. - Video Pb. 0.7 V
Rd. - Video Pr. 0.7 V

/ 75 Ω. jq

PP

/ 10 kΩ. jq

RMS

/ 10 kΩ. jq

RMS

/ 75 Ω. kq

PP

/10 kΩ. kq

RMS

/ 10 kΩ. kq

RMS

/ 75 Ω. jq

PP

/ 75 Ω. jq

PP

/ 75 Ω. jq

PP

Figure 2-1 Front Connections

2010-Apr-23

7 - AV in Cinch: Video CVBS - In, Audio - In

Ye. - Video CVBS. 1 V
Wh. - Audio L. 0.5 V
Rd. - Audio R. 0.5 V

/ 75 Ω. jq

PP

/ 10 kΩ. jq

RMS

/ 10 kΩ. jq

RMS

2.4 Chassis Overview

Refer to chapter 9. Block Diagrams for PWB/CBA locations.

Precautions, Notes, and Abbreviation List

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3. Precautions, Notes, and Abbreviation List

EN 3SK8.0L CA 3.

Index of this chapter:

3.1 Safety Instructions

3.2 Maintenance Instructions

3.3 Warnings

3.4 Notes

3.5 Abbreviation List

3.1 Safety Instructions

Safety regulations require the following during a repair:

• Connect the set to the Mains/AC Power via an isolation
transformer (> 800 VA).

• Replace safety components, indicated by the symbol h,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.

• Wear safety goggles when you replace the CRT.

Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:

• General repair instruction: as a strict precaution, we advise
you to re-solder the solder connections through which the
horizontal deflection current flows. In particular this is valid
for the:

1. Pins of the line output transformer (LOT).

2. Fly-back capacitor(s).

3. S-correction capacitor(s).

4. Line output transistor.

5. Pins of the connector with wires to the deflection coil.

6. Other components through which the deflection current

flows.

Note: This re-soldering is advised to prevent bad connections
due to metal fatigue in solder connections, and is therefore only
necessary for television sets more than two years old.

• Route the wire trees and EHT cable correctly and secure
them with the mounted cable clamps.

• Check the insulation of the Mains/AC Power lead for
external damage.

• Check the strain relief of the Mains/AC Power cord for
proper function, to prevent the cord from touching the CRT,
hot components, or heat sinks.

• Check the electrical DC resistance between the Mains/AC
Power plug and the secondary side (only for sets that have
a Mains/AC Power isolated power supply):

1. Unplug the Mains/AC Power cord and connect a wire

between the two pins of the Mains/AC Power plug.

2. Set the Mains/AC Power switch to the “on” position

(keep the Mains/AC Power cord unplugged!).

3. Measure the resistance value between the pins of the

Mains/AC Power plug and the metal shielding of the
tuner or the aerial connection on the set. The reading
should be between 4.5 MΩ and 12 MΩ.

4. Switch “off” the set, and remove the wire between the

two pins of the Mains/AC Power plug.

• Check the cabinet for defects, to prevent touching of any
inner parts by the customer.

3.2 Maintenance Instructions

We recommend a maintenance inspection carried out by
qualified service personnel. The interval depends on the usage
conditions:

• When a customer uses the set under normal
circumstances, for example in a living room, the
recommended interval is three to five years.

• When a customer uses the set in an environment with
higher dust, grease, or moisture levels, for example in a
kitchen, the recommended interval is one year.

• The maintenance inspection includes the following actions:

1. Perform the “general repair instruction” noted above.

2. Clean the power supply and deflection circuitry on the
chassis.

3. Clean the picture tube panel and the neck of the picture
tube.

3.3 Warnings

• In order to prevent damage to ICs and transistors, avoid all
high voltage flashovers. In order to prevent damage to the
picture tube, use the method shown in figure “Discharge
picture tube”, to discharge the picture tube. Use a high
voltage probe and a multi-meter (position V
until the meter reading is 0 V (after approx. 30 s).

Figure 3-1 Discharge picture tube

• All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD w). Careless handling
during repair can reduce life drastically. Make sure that,
during repair, you are connected with the same potential as
the mass of the set by a wristband with resistance. Keep
components and tools also at this same potential.

• Be careful during measurements in the high voltage
section.

• Never replace modules or other components while the unit
is switched “on”.

• When you align the set, use plastic rather than metal tools.
This will prevent any short circuits and prevents circuits
from becoming unstable.

3.4 Notes

3.4.1 General

• Measure the voltages and waveforms with regard to the
chassis (= tuner) ground (H), or hot ground (I), depending
on the tested area of circuitry. The voltages and waveforms
shown in the diagrams are indicative. Measure them in the
Service Default Mode (see chapter 5) with a color bar
signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated
otherwise) and picture carrier at 475.25 MHz for PAL, or

61.25 MHz for NTSC (channel 3).

• Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the
voltages in the power supply section both in normal
operation (G) and in stand-by (F). These values are
indicated by means of the appropriate symbols.

• The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.

). Discharge

DC

2010-Apr-23

EN 4 SK8.0L CA3.

10000_024_090121.eps

100105

MODEL :

PROD.NO:

~

S

32PF9968/10

MADE IN BELGIUM

220-240V 50/60Hz

128W

AG 1A0617 000001

VHF+S+H+UHF

BJ3.0E LA

Precautions, Notes, and Abbreviation List

• Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the “double-D symbol”, are
trademarks of Dolby Laboratories.

3.4.2 Schematic Notes

• All resistor values are in ohms, and the value multiplier is
often used to indicate the decimal point location (e.g. 2K2
indicates 2.2 kΩ).

• Resistor values with no multiplier may be indicated with
either an “E” or an “R” (e.g. 220E or 220R indicates 220 Ω).

• All capacitor values are given in micro-farads (μ= x10
nano-farads (n= x10

-9

• Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).

• An “asterisk” (*) indicates component usage varies. Refer
to the diversity tables for the correct values.

• The correct component values are listed in the Spare Parts
List. Therefore, always check this list when there is any
doubt.

3.4.3 Lead-free Soldering

Due to lead-free technology some rules have to be respected
by the workshop during a repair:

• Use only lead-free soldering tin Philips SAC305 with order
code 0622 149 00106. If lead-free solder paste is required,
please contact the manufacturer of your soldering
equipment. In general, use of solder paste within
workshops should be avoided because paste is not easy to
store and to handle.

• Use only adequate solder tools applicable for lead-free
soldering tin. The solder tool must be able:
– To reach a solder-tip temperature of at least 400°C.
– To stabilize the adjusted temperature at the solder-tip.
– To exchange solder-tips for different applications.

• Adjust your solder tool so that a temperature of around
360°C - 380°C is reached and stabilized at the solder joint.
Heating time of the solder-joint should not exceed ~ 4 sec.
Avoid temperatures above 400°C, otherwise wear-out of
tips will increase drastically and flux-fluid will be destroyed.
To avoid wear-out of tips, switch “off” unused equipment or
reduce heat.

• Mix of lead-free soldering tin/parts with leaded soldering
tin/parts is possible but PHILIPS recommends strongly to
avoid mixed regimes. If this cannot be avoided, carefully
clear the solder-joint from old tin and re-solder with new tin.

3.4.4 Alternative BOM identification

The third digit in the serial number (example:
AG2B0335000001) indicates the number of the alternative
B.O.M. (Bill Of Materials) that has been used for producing the
specific TV set. In general, it is possible that the same TV
model on the market is produced with e.g. two different types
of displays, coming from two different suppliers. This will then
result in sets which have the same CTN (Commercial Type
Number; e.g. 28PW9515/12) but which have a different B.O.M.
number.
By looking at the third digit of the serial number, one can
identify which B.O.M. is used for the TV set he is working with.
If the third digit of the serial number contains the number “1”
(example: AG1B033500001), then the TV set has been
manufactured according to B.O.M. number 1. If the third digit is
a “2” (example: AG2B0335000001), then the set has been
produced according to B.O.M. no. 2. This is important for
ordering the correct spare parts!
For the third digit, the numbers 1...9 and the characters A...Z
can be used, so in total: 9 plus 26= 35 different B.O.M.s can be
indicated by the third digit of the serial number.

Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 1 and 2 refer to the production center (e.g.

2010-Apr-23

), or pico-farads (p= x10

-12

AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers
to the Service version change code, digits 5 and 6 refer to the
production year, and digits 7 and 8 refer to production week (in
example below it is 2006 week 17). The 6 last digits contain the
serial number.

-6

),

).

Figure 3-2 Serial number (example)

3.4.5 Board Level Repair (BLR) or Component Level Repair (CLR)

If a board is defective, consult your repair procedure to decide
if the board has to be exchanged or if it should be repaired on
component level.
If your repair procedure says the board should be exchanged
completely, do not solder on the defective board. Otherwise, it
cannot be returned to the O.E.M. supplier for back charging!

3.4.6 Practical Service Precautions

• It makes sense to avoid exposure to electrical shock.

While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.

• Always respect voltages. While some may not be

dangerous in themselves, they can cause unexpected
reactions that are best avoided. Before reaching into a
powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.

3.5 Abbreviation List

0/6/12. SCART switch control signal on A/V

board. 0 = loop through (AUX to TV),
6 = play 16 : 9 format, 12 = play 4 : 3
format

AARA. Automatic Aspect Ratio Adaptation:

algorithm that adapts aspect ratio to
remove horizontal black bars; keeps
the original aspect ratio

ACI. Automatic Channel Installation:

ADC. Analogue to Digital Converter
AFC. Automatic Frequency Control: control

AGC. Automatic Gain Control: algorithm that

AM. Amplitude Modulation
AP. Asia Pacific
AR. Aspect Ratio: 4 by 3 or 16 by 9
ASF. Auto Screen Fit: algorithm that adapts

ATSC. Advanced Television Systems

ATV. See Auto TV
Auto TV. A hardware and software control

algorithm that installs TV channels
directly from a cable network by
means of a predefined TXT page

signal used to tune to the correct
frequency

controls the video input of the feature
box

aspect ratio to remove horizontal black
bars without discarding video
information

Committee, the digital TV standard in
the USA

system that measures picture content,

Precautions, Notes, and Abbreviation List

EN 5SK8.0L CA 3.

and adapts image parameters in a

dynamic way
AV. External Audio Video
AVC. Audio Video Controller
AVIP. Audio Video Input Processor
B/G. Monochrome TV system. Sound

carrier distance is 5.5 MHz
BLR. Board-Level Repair
BTSC. Broadcast Television Standard

Committee. Multiplex FM stereo sound

system, originating from the USA and

used e.g. in LATAM and AP-NTSC

countries
B-TXT. Blue TeleteXT
C. Centre channel (audio)
CEC. Consumer Electronics Control bus:

remote control bus on HDMI

connections
CL. Constant Level: audio output to

connect with an external amplifier
CLR. Component Level Repair
ComPair. Computer aided rePair
CP. Connected Planet / Copy Protection
CSM. Customer Service Mode
CTI. Color Transient Improvement:

manipulates steepness of chroma

transients
CVBS. Composite Video Blanking and

Synchronization
DAC. Digital to Analogue Converter
DBE. Dynamic Bass Enhancement: extra

low frequency amplification
DDC. See “E-DDC”
D/K. Monochrome TV system. Sound

carrier distance is 6.5 MHz
DFI. Dynamic Frame Insertion
DFU. Directions For Use: owner's manual
DMR. Digital Media Reader: card reader
DMSD. Digital Multi Standard Decoding
DNM. Digital Natural Motion
DNR. Digital Noise Reduction: noise

reduction feature of the set
DRAM. Dynamic RAM
DRM. Digital Rights Management
DSP. Digital Signal Processing
DST. Dealer Service Tool: special remote

control designed for service

technicians
DTCP. Digital Transmission Content

Protection; A protocol for protecting

digital audio/video content that is

traversing a high speed serial bus,

such as IEEE-1394
DVB-C. Digital Video Broadcast - Cable
DVB-T. Digital Video Broadcast - Terrestrial
DVD. Digital Versatile Disc
DVI(-d). Digital Visual Interface (d= digital only)
E-DDC. Enhanced Display Data Channel

(VESA standard for communication

channel and display). Using E-DDC,

the video source can read the EDID

information form the display.
EDID. Extended Display Identification Data

(VESA standard)
EEPROM. Electrically Erasable and

Programmable Read Only Memory
EMI. Electro Magnetic Interference
EPLD. Erasable Programmable Logic Device
EU. Europe
EXT. EXTernal (source), entering the set by

SCART or by cinches (jacks)
FDS. Full Dual Screen (same as FDW)
FDW. Full Dual Window (same as FDS)
FLASH. FLASH memory

FM. Field Memory or Frequency

Modulation
FPGA. Field-Programmable Gate Array
FTV. Flat TeleVision
Gb/s. Giga bits per second
G-TXT. Green TeleteXT
H. H_sync to the module
HD. High Definition
HDD. Hard Disk Drive
HDCP. High-bandwidth Digital Content

Protection: A “key” encoded into the

HDMI/DVI signal that prevents video

data piracy. If a source is HDCP coded

and connected via HDMI/DVI without

the proper HDCP decoding, the

picture is put into a “snow vision” mode

or changed to a low resolution. For

normal content distribution the source

and the display device must be

enabled for HDCP “software key”

decoding.
HDMI. High Definition Multimedia Interface
HP. HeadPhone
I. Monochrome TV system. Sound

2

I

C. Inter IC bus

2

I

D. Inter IC Data bus

2

I

S. Inter IC Sound bus

carrier distance is 6.0 MHz

IF. Intermediate Frequency
IR. Infra Red
IRQ. Interrupt Request
ITU-656. The ITU Radio communication Sector

(ITU-R) is a standards body

subcommittee of the International

Telecommunication Union relating to

radio communication. ITU-656 (a.k.a.

SDI), is a digitized video format used

for broadcast grade video.

Uncompressed digital component or

digital composite signals can be used.

The SDI signal is self-synchronizing,

uses 8 bit or 10 bit data words, and has

a maximum data rate of 270 Mbit/s,

with a minimum bandwidth of 135

MHz.
ITV. Institutional TeleVision; TV sets for

hotels, hospitals etc.
LS. Last Status; The settings last chosen

by the customer and read and stored

in RAM or in the NVM. They are called

at start-up of the set to configure it

according to the customer's

preferences
LATAM. Latin America
LCD. Liquid Crystal Display
LED. Light Emitting Diode
L/L'. Monochrome TV system. Sound

carrier distance is 6.5 MHz. L' is Band

I, L is all bands except for Band I
LPL. LG.Philips LCD (supplier)
LS. Loudspeaker
LVDS. Low Voltage Differential Signalling
Mbps. Mega bits per second
M/N. Monochrome TV system. Sound

carrier distance is 4.5 MHz
MIPS. Microprocessor without Interlocked

Pipeline-Stages; A RISC-based

microprocessor
MOP. Matrix Output Processor
MOSFET. Metal Oxide Silicon Field Effect

Transistor, switching device
MPEG. Motion Pictures Experts Group
MPIF. Multi Platform InterFace
MUTE. MUTE Line
NC. Not Connected

2010-Apr-23

EN 6 SK8.0L CA3.

Precautions, Notes, and Abbreviation List

NICAM. Near Instantaneous Compounded

Audio Multiplexing. This is a digital
sound system, mainly used in Europe.

NTC. Negative Temperature Coefficient,

non-linear resistor

NTSC. National Television Standard

Committee. Color system mainly used
in North America and Japan. Color
carrier NTSC M/N= 3.579545 MHz,
NTSC 4.43= 4.433619 MHz (this is a
VCR norm, it is not transmitted off-air)

NVM. Non-Volatile Memory: IC containing

TV related data such as alignments
O/C. Open Circuit
OSD. On Screen Display
OTC. On screen display Teletext and

Control; also called Artistic (SAA5800)
P50. Project 50: communication protocol

between TV and peripherals
PAL. Phase Alternating Line. Color system

mainly used in West Europe (color

carrier= 4.433619 MHz) and South

America (color carrier PAL M=

3.575612 MHz and PAL N= 3.582056

MHz)
PCB. Printed Circuit Board (same as “PWB”)
PCM. Pulse Code Modulation
PDP. Plasma Display Panel
PFC. Power Factor Corrector (or Pre-

conditioner)
PIP. Picture In Picture
PLL. Phase Locked Loop. Used for e.g.

FST tuning systems. The customer

can give directly the desired frequency
POD. Point Of Deployment: a removable

CAM module, implementing the CA

system for a host (e.g. a TV-set)
POR. Power On Reset, signal to reset the uP
PTC. Positive Temperature Coefficient,

non-linear resistor
PWB. Printed Wiring Board (same as “PCB”)
PWM. Pulse Width Modulation
QRC. Quasi Resonant Converter
QTNR. Quality Temporal Noise Reduction
QVCP. Quality Video Composition Processor
RAM. Random Access Memory
RGB. Red, Green, and Blue. The primary

color signals for TV. By mixing levels

of R, G, and B, all colors (Y/C) are

reproduced.
RC. Remote Control
RC5 / RC6. Signal protocol from the remote

control receiver
RESET. RESET signal
ROM. Read Only Memory
RSDS. Reduced Swing Differential Signalling

data interface
R-TXT. Red TeleteXT
SAM. Service Alignment Mode
S/C. Short Circuit
SCART. Syndicat des Constructeurs

d'Appareils Radiorécepteurs et

Téléviseurs
SCL. Serial Clock I
SCL-F. CLock Signal on Fast I
SD. Standard Definition
SDA. Serial Data I
SDA-F. DAta Signal on Fast I

2

C

2

C bus

2

C

2

C bus
SDI. Serial Digital Interface, see “ITU-656”
SDRAM. Synchronous DRAM
SECAM. SEequence Couleur Avec Mémoire.

Color system mainly used in France
and East Europe. Color carriers=

4.406250 MHz and 4.250000 MHz

SIF. Sound Intermediate Frequency

SMPS. Switched Mode Power Supply
SoC. System on Chip
SOG. Sync On Green
SOPS. Self Oscillating Power Supply
SPI. Serial Peripheral Interface bus; a 4-

wire synchronous serial data link

standard
S/PDIF. Sony Philips Digital InterFace
SRAM. Static RAM
SRP. Service Reference Protocol
SSB. Small Signal Board
STBY. STand-BY
SVGA. 800 × 600 (4:3)
SVHS. Super Video Home System
SW. Software
SWAN. Spatial temporal Weighted Averaging

Noise reduction
SXGA. 1280 × 1024
TFT. Thin Film Transistor
THD. Total Harmonic Distortion
TMDS. Transmission Minimized Differential

Signalling
TXT. TeleteXT
TXT-DW. Dual Window with TeleteXT
UI. User Interface
uP. Microprocessor
UXGA. 1600 × 1 200 (4:3)
V. V-sync to the module
VESA. Video Electronics Standards

Association
VGA. 640 × 480 (4:3)
VL. Variable Level out: processed audio

output toward external amplifier
VSB. Vestigial Side Band; modulation

method
WYSIWYR. What You See Is What You Record:

record selection that follows main

picture and sound
WXGA. 1280 × 768 (15:9)
XTAL. Quartz crystal
XGA. 1024 × 768 (4:3)
Y. Luminance signal
Y/C. Luminance (Y) and Chrominance (C)

signal
YPbPr. Component video. Luminance and

scaled color difference signals (B-Y

and R-Y)
YUV. Component video

2010-Apr-23

4. Mechanical Instructions

17891_100_090723.eps

100420

Mechanical Instructions

EN 7SK8.0L CA 4.

Index of this chapter:

4.1 Set Disassembly

4.2 Set Re-assembly

Note: Figures below can deviate slightly from the actual
situation, due to the different set executions.

4.1 Set Disassembly

Follow the disassemble instructions in described order.

4.1.1 Rear Cover Removal

Warning: disconnect the mains power cord before you remove

the rear cover.

1. Remove all the fixation screws of the rear cover.

2. Now, pull the rear cover backwards and remove it.

4.2 Set Re-assembly

To re-assemble the whole set, do all processes in reverse
order.
Be sure that, before the rear cover is mounted:

• The mains cord is positioned correctly in its guiding
brackets (make sure that the strain reliefs are replaced in
its correct position and that it will function correctly!).

• All wires/cables are returned in their original positions.

Figure 4-1 Set Disassembly SL8 styling

2010-Apr-23

EN 8 SK8.0L CA5.

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

5.1 Test Points

5.2 Service Modes

5.3 Error Codes

5.4 Fault Finding

5.1 Test Points

See chapter 9. Block Diagrams.

Perform measurements under the following conditions:

• Service Default Mode.

• Video: color bar signal.

• Audio: 3 kHz left, 1 kHz right.

5.2 Service Modes

This chassis does not contain a specific Service Mode. Service
and Alignment of the TV set can be done via the Factory Mode
by the service technician, see section 6.3 Software Alignments

5.3 Error Codes

Not applicable.

5.4 Fault Finding

• Check the IC soldering and relevant circuitry on physical
damage or check for defective capacitors.

5.4.7 Picture with Horizontal Bright Line and Sound

Check both supply voltages of vertical IC301 and relevant
circuitry on correctness. Also check the vertical synchronizing
signal from IC101.

5.4.8 Remote Control Malfunction

Check the voltage on pin 39 of IC101. The normal value should
be 5.15 V. If this is correct check front control panels soldering
connections. If can't be solved, check the remote control,
crystal or transmitting diode of the remote control are in good
condition.

5.4.9 No Sound

Check power supply of sound IC (IC401) and relevant circuitry.
Do not exclude IC401 to be defective. If needed replace the
speakers.

5.4.10 Poor Sound Quality

Check the sound system after searching the channel which
should set at NTSC or AUTO. If still has problem, check
accompany board circuit on chassis good or not.

5.4.1 Power on Failure

Check whether the power supply is working properly and
whether the values of voltages normal. If those are correct,
check line transistor and transformer are working properly or
check fore or back line for defects.

5.4.2 Horizontal Deflection Transistor Defective: No Picture, No Sound.

To find the fault for a defect horizontal deflection transistor
please check the following items:

• Over voltage to breakdown.

• Over current to burn.

• Horizontal frequency too low.

• Horizontal drive inefficient.

5.4.3 Picture Interference

• Check if the signal line contact is good.

• Change Tuner if is necessary.

5.4.4 Cannot find any TV program

Checking method: Check the closed circuit from tuner to
picture decoder IC to detect whether there are defective
components. Or check whether the resistance of R217, R213,
C208 and R209 has increased which also could cause the
problem.

5.4.5 No Good Picture or Double Image

Check the correctness of the signal from IF to Q202 and
relevant circuit. In this case the problem can be Q202 and/or
SAW101.

5.4.6 Picture not or incorrect Colored

• Check the circuit from IC101 to R.G.B. three gun circuit.

2010-Apr-23

6. Alignments

Alignments

EN 9SK8.0L CA 6.

Index of this chapter:

6.1 General Alignment Conditions

6.2 Hardware Alignments

6.3 Software Alignments

6.4 Factory mode Settings

6.1 General Alignment Conditions

6.1.1 Default Alignment Settings

Perform all electrical adjustments under the following
conditions:

• Power supply voltage: 230 V

• Connect the set to the mains via an isolation transformer
with low internal resistance.

• Allow the set to warm up for approximately
20 to 30 minutes.

• Measure voltages and waveforms in relation to chassis
ground (with the exception of the voltages on the primary
side of the power supply).
Caution: never use heatsinks as ground.

• Test probe: 100 : 1, R

• Use an isolated trimmer/screwdriver to perform
alignments.

i

/ 50 Hz (± 10%).

AC

> 10 MΩ, Ci < 3.5 pF.

6.2 Hardware Alignments

Note: The only hardware alignment in this TV set is the

adjustment of the main voltage (B+), see below.

6.2.1 Main Voltage Adjustment

In order to adjust the main voltage, connect a voltage meter to
TP312 or TP637 and adjust R636 to a voltage of 115 V ±1.0 V.

2. Press the keys [i+], “Smart sound” and “Smart picture” to
enter the factory menu. When in “B/W BALANCE” page,
press “0” on the RC.

3. Adjust flyback transformers Screen knob till OK is
displayed on screen, press “0” to exit.

Table 6-1 To increase/decrease CUT R/G

Function CUT R+ CUT R- CUT G+ CUT G-

RC key 1 4 2 5

6.3.4 Horizontal Adjustment

1. Provide a 50 Hz monoscope pattern.
– Press the keys [i+], “Smart sound” and “Smart picture”

to enter the factory menu.

– Press the keys [i+] again and “ADJUST” appear on

screen.

2. Press key “0” and adjust “HPH” to set picture horizontal
centre to CRT horizontal centre.

6.3.5 Vertical & YUV/RGB Horizontal Adjust (Key 0)

1. Provide a 50 Hz cross hatch signal, set TV to standard
mode. Adjust VSL so that half picture of the pane cross
appears. The picture’s vertical line is just at the bottom of
the half picture. Adjust VSL to make the centre of the
picture’s vertical line and the kinescope are in
superposition.

2. Adjust VSI to obtain picture’s vertical re-display ratio more
than 90%.

3. Provide a 60 Hz cross hatch signal, do step 1 and 2 again
to adjust.

4. If necessary, fine adjust above items.

6.3 Software Alignments

Put the set in its MENU mode (factory mode) as follows (see
also figure “Factory Mode” on the next page):

• Press the keys [i+], “smart sound” and “smart picture” to
enter the factory menu.

• Press the keys [i+] again and “ADJUST” appear on screen.

• Press the number keys to enter the adjust page, press B /
y to choose the items that to be adjusted, Press z /A to
adjust its value.

• Press [i+] to quit factory mode.

The different alignment parameters are described further on.

6.3.1 RF AGC Voltage Adjust

1. Provide a 571.25 MHz, 60 dB half color bar signal.

2. Enter factory mode and press key 1.

3. Measure tuner AGC point voltage, adjust AGC item till the
voltage is 2.4 V, or till picture noise just disappears. (typical
value is at 27).

6.3.2 Focus Fine Adjust

1. Provide a cross-hatch pattern signal.

2. Set state to “Rich” mode.

3. Adjust flyback transformers Focus knob till picture is clear.

6.3.3 Screen Voltage Adjust (Key 0)

1. Set picture to “AV Standard” mode, without signal input.

2010-Apr-23

EN 10 SK8.0L CA6.

Alignments

6.4 Factory mode Settings

How to enter and exit service modes

1. Enter “FACTORY MODE”: press “Display”, ”Sound

mode” and “PP” on the Remote Control.
Enter “DESIGN SERVICE MODE”: after entering
“FACTORY SERVICE MODE”, select “SC”, then press
“8” and “9” on the Remote Control.
Normally “DESIGN SERVICE MODE” is not needed for
production line. Exit service mode: press “DISPLAY”
key to exit service mode.

2. In service mode, pressing digital keys directly can
enter the corresponding page, pressing “MENU” key
can enter the next page. Pressing “UP” and “DOWN”

Table 6-2 Factory Alignments Menu

Description of the factory menu Display string Range (Index value) Default

Horizontal shift HSH 0 to 63 32

EW width EWW 0 to 63 32

Vertical slope. This will switch screen to half blank. VSL 0 to 63 32

Vertical shift VSH 0 to 63 32

Vertical amplitude VAM 0 to 63 32

S-correction SC 0 to 63 32

East West Parabola Width PW 0 to 63 32

East West Trapezium TC 0 to 63 32

East West Upper Corner Parabola UCP 0 to 63 32

East West lower Corner Parabola LCP 0 to 63 32

Horizontal parallelogram HPAR 0 to 63 32

Horizontal bow HBOW 0 to 63 32

Black level offset Course BLOC 0 to 63 7

Black level offset Red BLOR 0 to 63 32

Black level offset Green BLOG 0 to 63 32

Black level offset Blue BLOB 0 to 63 32

White point Red WPR 0 to 63 32

White point Green WPG 0 to 63 32

White point Blue WPB 0 to 63 32

AGC Take over. Also used as TOP when an internal AGC tuner is used. AGC 0 to 63 32

Sub brightness SUB-BRI 0 to 63 0

In TV or YUV, brightness of white balance WBT 0 to 63 32

In TV or YUV, brightness of white contrast WCT 0 to 63 32

VG2 Adjustment VG2 0 to 63 32

Out of factory BOX 0, 1 0

Speech treble S-TR 0 to 63 24

Speech bass S-BA 0 to 63 42

Music treble M-TR 0 to 63 42

Music bass M-BA 0 to 63 48

Theatre treble T-TR 0 to 63 32

Theatre bass T-BA 0 to 63 48

AV curve offset compare to TV AV-OF -31 to 32 0

The volume setting for OSD 5 V-05 0 to 81 5

The volume setting for OSD 10 V-10 15

The volume setting for OSD 20 V-20 25

The volume setting for OSD 30 V-30 35

The volume setting for OSD 40 V-40 55

The volume setting for OSD 50 V-50 65

The volume setting for OSD 63 V-63 81

Soft brightness S-BRI 0 to 63 32

Soft colour S-COL 0 to 63 32

Soft contrast S-CON 0 to 63 20

Soft sharpness S-SHA 0 to 63 25

Natural brightness N-BRI 0 to 63 32

Natural colour N-COL 0 to 63 25

Natural contrast N-CON 0 to 63 21

Natural sharpness N-SHA 0 to 63 32

Rich brightness R-BRI 0 to 63 38

Rich colour R-COL 0 to 63 30

Rich contrast R-CON 0 to 63 50

Rich sharpness R-SHA 0 to 63 20

keys can select the items to adjust, pressing “LEFT”
and “RIGHT” keys can adjust the values.

3. BUS OPEN mode: In service mode, pressing “MUTE”
key can enter “BUS OPEN” mode, which is useful for
white balance adjustment using AUTO WHITE
BALANCE EQUIPMENT or mass data written into the
EEPROM IC. Pressing “MUTE” can exit “BUS OPEN”
mode.

4. FACTORY mode: In service mode, pressing “A/CH”
key can enter “FACTORY MODE”, which is useful for
aging in production lines. Pressing “8” and “9” on the
Remote Control again can exit “FACTORY MODE”.

2010-Apr-23

Alignments

Description of the factory menu Display string Range (Index value) Default

IF select; IFA, IFB, IFC IF 0: 58.75 MHz

AGC speed adjust A SPD 0 to 3 1

Blue screen B B 0: No signal is snowflake

Video mute; switch source whether blanking V-M 0: No black blanking

Mute pin type M-MODE 0: MUTE low; DEMUTE high

AV POC SETTING A-POC 0: POC=0

TV POC SETTING T-POC 0: POC by LOCK or SL setting

Blue screen condition BLUE 0:AV by IFI setting, TV by IFI or SL setting

Switch off condition OFF 0: Program setting

VG2 mode VG2-MODE 0: Light line adjust mode

VG2 brightness adjust VSD-Bri 0 to 63 32

CCD delay DELAY 0 to 127 2

BTSC mode select MODE 0 to 2 0

SAP send LOW or HIGH SAP-LH 0: SAP low

Stereo Sense LOW or HIGH STEREO-LH 0: Stereo low

SAP Level 1 or 2 SAP1-2 0: SAP level 1

SIF or BASE BAND mode SIF-BASE 0: SIF mode

BTSC detect time for switch source DETECT 50

Bass and treble present in sound menu BAS-TRE 0: Off, 1: On 0

DSK register, Dynamic skin control on/off DSK 0: Off, 1: On 0

Disco Gain, register DISG 0x4a bit 6 DISG 0: Off, 1: On 0

Coring of SVM output single; register COFF 0x48 bit 7 COF 0: Off, 1: On 0

Cap bank switch; NTSC next DCXO_CAP setting DCXO 0 to 3 2

PAL-M Cap bank switch for DCXO; PAL-M next DCXO_CAP setting PM-DCXO 0 to 3 2

PAL-N Cap bank switch for DCXO; PAL-N next DCXO_CAP setting PN-DCXO 0 to 3 2

AKB register setting AKB 0: AKB setting 0, CCC function

OSD vertical position for 50 Hz O-V50 0 to 63 35

OSD vertical position for 60 Hz O-V60 0 to 63 35

OSD Horizontal position O-HOR 10 to 50 36

PCB Logic LOGIC 0: 3P67SN, 1: 5P67SN, 2: 3P69SN 1

Init NVM INIT 0: Off, 1: On 0

AV1 present for AV status AV1 0: Off, 1: On 1

SIDE present for AV status SIDE 0: Off, 1: On 1

AV2 present for AV status AV2 0: Off, 1: On 0

S-VIDEO present for AV status S-V 0: Off, 1: On 0

YUV present for AV status YUV 0: Off, 1: On 0

TV MONO select, Left sound output MONO 0: Stereo, 1: Mono 0

Stand-by remember R-POWER 0: power on, 1: power off, 2: power remember 0

Vertical linearity for 50 Hz 5VLIN 0 to 63 32

Vertical linearity for 60 Hz 6VLIN 0 to 63 32

Vertical scroll for 50 Hz 5VSCR 0 to 63 32

Vertical scroll for 60 Hz 6VSCR 0 to 63 32

VX or VA setting in 16 : 9 mode,
VX-VAM = 0, Setting VX register
VX-VAM = 1, Setting VA register

VX or VA setting in 4 : 3 mode,
VX-VAM = 0, Setting VX register
VX-VAM = 1, Setting VA register

VX or VA setting in 4 : 3 expand mode,
VX-VAM = 0, Setting VX register
VX-VAM = 1, Setting VA register

Max-brightness MAX-BRI 0 to 63 63

Sub-contrast

Max-contrast MAX-CON 0 to 63 63

Max-colour MAX-COL 0 to 63 63

No signal EWW N-EWW -32 to +31 0

Black stretch depth DEP 0: 15 IRE, 1: 30 IRE 0

Colour temperature of soft S-C 0: normal, 1: cold, 2: warm 2

Colour temperature of natural N-C 0: normal, 1: cold, 2: warm 0

Colour temperature of rich R-C 0: normal, 1: cold, 2: warm 1

ZOOM 16 0 to 63 0

ZOOM N 0 to 63 25

ZOOM EX 0 to 63 51

SUB-CON

1: 45.75 MHz
2: 38.90 MHz
3: 38.00 MHz
4: 33.40 MHz
5: 33.90 MHz

1: No signal is blue screen

1: blanking

1: MUTE high; DEMUTE low

1: POC by IFI setting

1: POC by LOCK or IFI setting
2: POC by LOCK or IFI or SL setting

1:Program setting

1: AV by IFI setting, TV by IFI and SL setting

1: Character adjust mode

1: SAP high

1: Stereo high

1: SAP level 2

1: BASE BAND mode

1: AKB setting 1

0 to 63

EN 11SK8.0L CA 6.

1

1

1

0

1

1

1

1

0

0

0

1

1

0

2010-Apr-23

EN 12 SK8.0L CA6.

Description of the factory menu Display string Range (Index value) Default

4 : 3 expand present state 4:3 0: Off, 1: On 0

16 : 9 present state 16:9 0: Off, 1: On 1

VX or VAM active for VX 16 : 9 VX, Normal and VX Expand VX-VAM 0: VX, 1: VAM 0

Peak white limiting PWL 0 to 63 15

Cathode HDOL 0 to 15 12

Correction for DC offset in the IF-PLL

Blue stretch BLUE-S 0: Off, 1: On 0

FBC and FBC1 register FBC-FBC1 0: FBC = 0, FBC1 = 0

YD0-YD3 register, using PAL, Lightness delay P-YD 0 to 15 9

YD0-YD3 register, using NTSC, Lightness delay N-YD 0 to 15 8

YD0-YD3 register, using AV, Lightness delay A-YD 0 to 15 10

DMPH register DMPH 0: Off, 1: On 0

CBAF0 and CBAF1 register, Frequency select of BASS CBAF0-1 0 to 3 0

CBAF0 and CBAF1 register, Frequency select of TREBLE CTRF0-1 0 to 3 0

CB register CB 0: Fsc, 1: 1.1 × Fsc 0

MAT, MUS, MTXF register, MATRIX 0: MAT = 0, MUS = 0, MTXF = 0

FMWB register FMWB 0 to 3 3

HCO register, 0: HCO = 0, 1: HCO = 1 HCO 0, 1 0

AGN, Gain for FM demodulator, AGN = 0 (normal), AGN = 1 (+6 db) AGN 0: PAL AGN = 0, NTSC AGN = 0

AGNE1; AGNE0, Extra gain setting for FM AGNE 0: normal

FMWS1; FMWS0, Window selection for FM demodulator

BPB2, bypass sound bandpass filter section 2 BPB2 0: activated, 1: bypassed 1

Fast filter IF-PLL

AV COR1, COR2 register setting A-COR 0: off

TV COR1, COR2 register setting T-COR 0: off

FOA and FOB setting FOA-FOB 0: In AV, FOA = 1, FOB = 1, In TV, FOA = 0, FOB = 0.

DSG register, TV mode TV-DSG 0, 1 1

DSG register, AV mode AV-DSG 0, 1 1

menu position adjustment MENU-H 0 to 63 32

DSGL S register DSGLS 0: +0 db, 1: +6 db 1

Slicing level horizontal sync separator SSL 0: 50%, 1: 30% 0

Force slicing level for vertical sync FSL 0: dependent on noise detector

AAS1;AAS0, Black area to switch of the black strength AAS 0: 10%, 1: 12%, 2: 6%, 3: 8% 2

SOC0, SOC1, Soft clipping level SOC 0: 0%, 1: 5%, 2: 10%, 3: off 2

HBL, RGB blank mode HBL 0: normal, 1: wide 1

WBF, Timing of wide blanking

WBR, Timing of wide blanking

In TV or YUV, Brightness of black balance BT 0 to 63 32

In TV or YUV, Contrast of black balance CT 0 to 63 32

NVM C0, Character 0 C0 48 to 255

NVM C1, Character 1 C1 48 to 255

NVM C2, Character 2 C2 48 to 255

NVM Year Y 8 to 10 8

NVM Month M 1 to 12 7

NVM Day D 1 to 31 8

XDT, X-ray protect

XDT SW active, XDT protect available XDT-OFFON 0: Off, 1: On 1

SW detect times, XDT protect detect times XDT-TIME o to 255 10

In power off, STB register setting STB 0: STB Off, 1: STB On 1

EVG register, Field protect function EVG 0: EVG Off, 1: EVG On 0

Alignments

OIF

FMWS

FFI

WBF

WBR

XDT 0: Hardware protect, 1: Software protect 0

0 to 63 32

1: FBC = 1, FBC1 = 0
2: FBC = 0, FBC1 = 1
3: FBC = 1, FBC1 = 1

1: MAT = 1, MUS = 0, MTXF = 0
2: MAT = 0, MUS = 1, MTXF = 0
3: MAT = 1, MUS = 1, MTXF = 0
4: MAT = 0, MUS = 0, MTXF = 1
5: MAT = 1, MUS = 0, MTXF = 1
6: MAT = 0, MUS = 1, MTXF = 1
7: MAT = 1, MUS = 1, MTXF = 1

1: PAL AGN = 0, NTSC AGN = 1
2: PAL AGN = 1, NTSC AGN = 0
3: PAL AGN = 1, NTSC AGN = 1

1: +3.8 db
2: -6.0 db
3: -3.0 db

0: 100 kHz
1: 225 kHz
2: 450 kHz
3: 900 kHz

0: normal, 1: increased 0

1: 0 to 20
2: 0 to 40
3: 0 to 100

1: 0 to 20
2: 0 to 40
3: 0 to 100

1: FOA = 0, FOB = 1
2: FOA = 1, FOB = 0

1: fixed slicing level of 60%

0: 3.5 μs, 1: 5.9 μs

0: 7.8 μs, 1: 10.2 μs0

0

0

1

1

1

1

1

0

0

0

2010-Apr-23

Alignments

EN 13SK8.0L CA 6.

Description of the factory menu Display string Range (Index value) Default

CHSE1 CHSE0 register, If CHSE ON setting on, CHSE value of strong signal

Auto low signal identification CHSE ON 0: Off, 1: On low signal according to CHSE setting 0

OSD error protect PRO 0: Off, 1: On 0

OSD error times PRO1 0 to 255 0

Black level offset Red of YUV normal Y-BR -32 to +31 0

Black level offset Green of YUV normal Y-BG -32 to +31 0

Black level offset Blue of YUV normal Y-BB -32 to +31 0

White point Red of YUV normal Y-WR -32 to +31 0

White point Green of YUV normal Y-WG -32 to +31 0

White point Blue of YUV normal Y-WB -32 to +31 0

Black level offset Red of YUV cool Y-C-BR -32 to +31 0

Black level offset Green of YUV cool Y-C-BG -32 to +31 0

Black level offset Blue of YUV cool Y-C-BB -32 to +31 0

White point Red of YUV cool Y-C-WR -32 to +31 0

White point Green of YUV cool Y-C-WG -32 to +31 0

White point Blue of YUV cool Y-C-WB -32 to +31 0

Black level offset Red of YUV warm Y-W-BR -32 to +31 0

Black level offset Green of YUV warm Y-W-BG -32 to +31 0

Black level offset Blue of YUV warm Y-W-BB -32 to +31 0

White point Red of YUV warm Y-W-WR -32 to +31 0

White point Green of YUV warm Y-W-WG -32 to +31 0

White point Blue of YUV warm Y-W-WB -32 to +31 0

Black level offset Red of TV normal T-BR -32 to +31 0

Black level offset Green of TV normal T-BG -32 to +31 0

Black level offset Blue of TV normal T-BB -32 to +31 0

White point Red of TV normal T-WR -32 to +31 0

White point Green of TV normal T-WG -32 to +31 0

White point Blue of TV normal T-WB -32 to +31 0

Black level offset Red of TV cool T-C-BR -32 to +31 0

Black level offset Green of TV cool T-C-BG -32 to +31 0

Black level offset Blue of TV cool T-C-BB -32 to +31 0

White point Red of TV cool T-C-WR -32 to +31 0

White point Green of TV cool T-C-WG -32 to +31 0

White point Blue of TV cool T-C-WB -32 to +31 0

Black level offset Red of TV warm T-W-BR -32 to +31 0

Black level offset Green of TV warm T-W-BG -32 to +31 0

Black level offset Blue of TV warm T-W-BB -32 to +31 0

White point Red of TV warm T-W-WR -32 to +31 0

White point Green of TV warm T-W-WG -32 to +31 0

White point Blue of TV warm T-W-WB -32 to +31 0

CHSE

0: colour sensitivity -34 dB
1: colour sensitivity -37 dB
2: colour sensitivity -41 dB
3: colour sensitivity -46 dB

0

2010-Apr-23

EN 14 SK8.0L CA7.

7. Circuit Descriptions

Circuit Descriptions

Index of this chapter:

7.1 Introduction

7.2 The various circuits

7.1 Introduction

The SK8.0L CA is a CRT TV based on the 3P69 platform. In
this chapter, only a general description of the various circuits is
given. For more detailed information, see the circuit diagrams
in this manual.

7.2 The various circuits

7.2.1 Tuner

The function of the tuner is to select the channel to be received
and suppress the interference of neighboring channels, to
amplify the high frequency signal, to improve the receiving
sensitivity and SNR, and to generate a PIF signal through
frequency conversion.

7.2.2 IF Channel

The IF Channel mainly ensures the sensitivity and selectivity of
the complete TV set. The IF AMP integrated in the UOCIII is
made up of a three-stage dual-differential amplifier with a gain
value above 70 dB, a SNR of 55 dB and a bandwidth of 7 MHz.
The video demodulation circuit is made from the built-in PLL
Sync Detector. The spectrum of the demodulation carrier is
unitary and it is not affected by the content of the video signal.
The tuner features stable receptivity while the signal output
from the video detector features high fidelity. The built-in PLL
circuit of the UOCIII generates a 38.0 MHz or 38.9 MHz
demodulation reference signal for the sync detector to
demodulate the video signal; this is called “PLL sync
demodulation”.

7.2.3 Sound Channel

An external ceramic filter is used to select the second SIF
signal for the sound channel of UOCIII from the signal output of
the video detector. The audio signal is obtained after limiting
amplification and demodulation by the intermediate frequency
detector for the SIF signal, and then the audio signal is fed to
the BTSC stereo/SAP decoder TDA9850. From that it is output
to the audio amplifier TFA9842, which drives the speakers to
provide the sound. The intermediate frequency detector and
volume-control attenuator that are built in the UOCIII are set
and adjusted via the CPU.

7.2.4 BTSC stereo/SAP decoder

The stereo identification can be read by the I
different pilot thresholds (data STS = 1; STS = 0) can be
selected via the I

SAP Demodulator

The composite signal is fed from the output of the input level
adjustment stage to the SAP demodulator circuit through a 5fH
band-pass filter. The demodulator level is automatically
controlled. The SAP demodulator includes an internal field
strength detector that mutes the SAP output in the event of
insufficient signal conditions. The SAP identification signal can
be read by the I

Noise Detector

The composite input noise increases with decreasing antenna
signal. This makes it necessary to switch stereo or SAP off at
certain thresholds. These thresholds can be set via the I
bus. With ST0 to ST3 the stereo threshold can be selected and
with SP0 to SP3 the SAP threshold. A hysteresis can be
achieved via software by making the threshold dependent of
the identification bits STP and SAPP.

Mode Selection

The stereo/SAP switch feeds either the L - R signal or the SAP
demodulator output signal via the internal dbx noise reduction
circuit to the dematrix/switching circuit. Different switch modes
provided at the output pins OUTR and OUTL are available.

dbx Decoder

The dbx circuit includes all blocks required for the noise
reduction system in accordance with the BTSC system
specification. The output signal is fed through a 73 ms fixed de­emphasis circuit to the dematrix block.

SAP Output

Independent of the stereo/SAP switch, the SAP signal is also
available at pin SAP. At SAP, the SAP signal is not dbx
decoded. The capacitor at SDE provides a recommended de­emphasis (150 ms) at SAP.

Integrated Filters

The filter functions necessary for stereo and SAP demodulation
and part of the dbx filter circuits are provided on-chip using
transconductor circuits. The required filter accuracy is attained
by an automatic filter alignment circuit.

7.2.5 CRT Drive Circuit

In the driver circuit, both the voltage and current of the R/G/B
signal are amplified, after which the CRT drive circuit
modulates the cathode beam current of the CRT. The R/G/B
signal input into the driver circuit is of negative polarity.

2

C-bus.

2

C-bus.

2

C-bus. Two

2

C-

Input Level Adjustment

The composite input signal is fed to the input level adjustment
stage. The control range is from -3.5 to +4.0 dB in steps of

0.5 dB. The maximum input signal voltage is 2 V (RMS).

Stereo Decoder

The output signal of the level adjustment stage is coupled to a
low-pass filter which suppresses the baseband noise above
125 kHz. The composite signal is then fed into a pilot detector/
pilot cancellation circuit and into the MPX demodulator. The
main L + R signal passes a 75 ms fixed de-emphasis filter and
is fed into the dematrix circuit. The decoded sub-signal L - R is
sent to the stereo/SAP switch. To generate the pilot signal the
stereo demodulator uses a PLL circuit including a ceramic
resonator. The stereo channel separation is adjusted by an
automatic procedure to be performed during set production.

2010-Apr-23

7.2.6 Power Supply Circuit

The function of the power supply circuit is to supply various
stabilized operating voltages and to provide protections against
excessive voltages and currents.

8. IC Data Sheets

H_17210_039.eps

100421

Block diagram

Pinning information

This section shows the internal block diagrams and pin layouts
of ICs that are drawn as “black boxes” in the electrical
diagrams.

8.1 Diagram A1, STR6554, (IC601)

IC Data Sheets

EN 15SK8.0L CA 8.

Figure 8-1 Block Diagram and Pin Configuration

2010-Apr-23

EN 16 SK8.0L CA8.

H_17210_040.eps

100421

Block diagram

18961_301_100421.eps

100421

Block diagram & Pinning information

8.2 Diagram A1, PC817, (IC602)

IC Data Sheets

Figure 8-2 Block Diagram and Pin Configuration

8.3 Diagram A2, LA78141, (IC301)

2010-Apr-23

Figure 8-3 Block Diagram and Pin Configuration

8.4 Diagram A5, TDA7266SA (IC401)

18961_300_100421.eps

100421

Block diagram

Pinning information

1

2

3

4

5

6

7

9

10

11

8

N.C.

N.C.

S-GND

PW-GND

OUT2+

OUT2-

VCC

IN2

ST-BY

MUTE

N.C.

IN1

V

CC

OUT1-

OUT1+

13

14

15

12

1

2

4

Vref

7YB-TS

IN1

V

CC

V

CC

133

+

-

-

+

OUT1+

OUT1-

15

14

12

6ETUM

IN2

+

-

-

+

OUT2+

OUT2-

8

9

S-GND

PW-GND

IC Data Sheets

EN 17SK8.0L CA 8.

Figure 8-4 Block Diagram

2010-Apr-23

EN 18 SK8.0L CA8.

I_17880_007.eps

100421

Pinning information

IC Data Sheets

2010-Apr-23

Figure 8-5 Pin Configuration

H_17210_030.eps

100421

Pinning information

IC Data Sheets

EN 19SK8.0L CA 8.

Figure 8-6 Pin Configuration

2010-Apr-23

EN 20 SK8.0L CA8.

H_17210_031.eps

100421

Pinning information

IC Data Sheets

Figure 8-7 Pin Configuration

2010-Apr-23

8.5 Diagram A6, TDA12165 (IC101)

18961_302_100421.eps

100421

Block diagram

IC Data Sheets

EN 21SK8.0L CA 8.

Figure 8-8 Block Diagram

2010-Apr-23

EN 22 SK8.0L CA8.

P

ersonal Notes:

IC Data Sheets

2010-Apr-23

10000_012_090121.eps

090121

9. Block Diagrams

I_17890_003.eps

B

K

A1

A2

A3

A4

A5

A6

A7

&57 %2$5'

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PWB locations

Block Diagrams

EN 23SK8.0L CA 9.

2010-Apr-23

Block Diagram Chassis

18961_400_100422.eps

100422

TDA12165

Y UV

REAR AV SIDE AV

ANTENNA

FS TUNER

IF AMP SAW101

IF

MTS-LA72703

AV-SW HEF 4052

L

R

AV OUT

VLR

V

LR

RLV

AMP-TDA7266

KEY CONTROL

R

G

B

IK

24C08

W6554A

V AMP TDA4863AJ

H DRIVE

SPL

SPR

CRT BOARD

21" CRT

V−DY

H−DY

R OUT

G OUT

B OUT

SW

90V-260V

DEG COIL

POWER

SCL

SDA

PHILIPS UOC TOP

+115V FOR B+

+45V

+12V FOR MAIN

+20V FOR AMP

KEY

AUDIO

3DD5023

SCL

SDA

A1A1

A2A2

A3A2

B

GD

A7A5

A5A4

A8A6

IF

A3

Cb

CrY

CVBS OUT

SIDE Video

REAR Video

LR

RL

Tuner AGC

SLIM PART

Block Diagrams

EN 24SK8.0L CA 9.

2010-Apr-23

21SL9 Schematic Overview Chassis

18961_401_100422.eps

100422

R419

100

R141

1K

R133 39K 1%

R111

100

R123 100

R104 100

R122 12K

R140 1K

R121

0.1uF/63V

C107

10uF/16V

C142

0.15uF/63V

C121

0.22uF/63V

C122

0.01uF/100V

1

2

3

5

4

SAW101
K1976M(3P69SN)

C110

0.022uF

C105
10uF/16V

X101

24.576MHz

C1310.01uF/100V

C117
100uF/16V

C106

10uF/16V

C132

0.1uF/63V

L103 100uH

C141

6800pF/100V

C124

1.5uF/50V

C140

1000pF/100V

C139

1000pF/100V

C138

1000pF

C137

0.022uF/100V

C102 10uF/16V

C129

0.1uF/100V

L102

10uH

C109

390

L101 10uH

C103

10uF/16V

R246

39K

R204
33K

AV-Vout

+5V-VSP

+8V

FM-OUT

EHT-IN

RF-AGC

VIF-IN2

VIF-IN1

VDR1

VDR2

EW

+5V-VP1

LED

KEY-IN

AV1-SW

AV2-SW

C111

0.1uF/63V

Main Board Assembly

1

2

3

4

5

6

7

8

9

10

11

IF-OUT

GND

+33V

N.C

+5V

SDA

SCL

A.S

N.C

AGC

N.C

A101

TUNER

TP101

R207 47K

C201 10uF/16V

C204

100pF/50V

C205
100pF/50V

C202

0.1uF/63V

C207

0.1uF

C208

0.01uF/50V

C203

0.01uF

C212

0.01uF/50V

C213
47uF/16V

C206
100uF/16V

C408
1uF/50V

R204 100

R206
10K

R203

100

R208 680

R209

820

R212

27

R213

1.2K

R217

5.6K

R216
75

TP104

L203

100uH

TP105

TP102

TP103

Q202

2SC2717

L201

0.82uH

R464 1K

R463

1K

R134 12K

R106 100

C113

0.1uF/63V

C136

0.1uF/50V

C120
10uF/16V

L107

10uH

C114

0.1uF/63V

C116 0.1uF/63V

C115 0.1uF/63V

R115 100

R117 100

R116 100

R109 100

R108 100

R107 100

R110 100

R143

10K

R462 1K

R126

100

R125

100

1

2

3

54

6

7

8

E0

E1

E2

VSS

VCC

W.P

SCL

SDA

IC001

24C08

C133

0.01uF/100V

C134

0.1uF/50V

C147

560pF

C135

0.1uF/50V

C143
100uF/16V

C119

100uF/16V

C118

100uF/16V

L104 10uH

L105 10uH

L001
10uH

L106

10uH

R129 1.8K

ZD104

8V2

ZD105

8V2

ZD106

8V2

R102

8V2

R101
39K

R118 100

ZD107A

27K

+3.3V-STB

BCK-IN

R-OUT

G-OUT

B-OUT

BCL-IN

YUV-UIN

YUV-YIN

YUV-VIN

V-GUARD

+5V-VSP

H-OUT

H-AFC

MAIN-RO

MAIN-L O

Front-RIN

AV-ROUT

AV-LOUT

AV-VIN

Front-LIN

+3.3V-STB

IR-IN

STANDBY

MUTE

R113

100

R114 100

R112

3.3K

R136

3.3K

R135

3.3K

R124
1K

R128

3.3K

R185

10K

SCL

SDA

+3.3V-STB

+5V-STB

+3.3V-STB

VLR

P01

Side AV Board

1

2

3

4

CN01

FOR SIDE AV IN

1

2

3

4

CN401

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

0Y

2Y

Y-COM

3Y

1Y

INH

VEE

VSS

SW-B

SW-A

3X

0X

X-COM

1X

2X

VCC

IC402

HEF4052

Q402
2SC1815Y

R411
180

R418
68

R447
150K

R446
150K

R412

75

R414

75

R413
75

ZD406

8V2

ZD490
8V2

R490

75

R443

75

ZD402

8V2

ZD404

8V2

ZD403
8V2

Q401
2SC1815Y

R430

1.5K

R405
100

R421
100K

R424
100K

Q403

2SC1815Y

R431

1.5K

R404
100

R420

100K

R422

100K

AV-ROUT

RF-AGC

SCL

SDA

+5V-VSP

+45V

+8V

VIF-IN1

VIF-IN2

+12V

AV-Vout

Front-RIN

YUV-YIN

YUV-UIN

YUV-VIN

AV1-SW

AV2-SW

+12V

TV-Lout

AV-LOUT

R417

47K

R416

47K

C406

1n2

C405

1n2

C411

10uF/16V

C417

1000pF

R423

47K

C412

10uF/16V

C402

10uF

C401 10uF

C416
1000pF

LED

KEY-IN

+5V-STB

IR-IN

1

2

3

IR

GND

VCC

M001

R180
10

R182

2.7K

R183 100

R18118K

R602

200K 1W

R184

10K

C180
100uF/16V

D108

SW181

CH-

SW180

CH+

SW183

VOL-

SW182

VOL+

Panel Section

SW601

Mains Switch

L

N

CN603

T602

LCL-2815

T601

LCL-2815

F601

T3.15A L 250V

R601

2.2M 1W

C607

0.22uF/250V

C606

0.22uF/250V

D604

4A8BL

D605 4A8BL

D602
4A8BL

D603

4A8BL

C130

0.1uF/100V

TV-Rout

DL601
JQX-14F

D601
1N4148

C419
47uF/16V

R627
10

R630

47K

R622
10K

Q602

2SC1815Y

C637

47uF/16V

C629

220uF/16V

C611

4700pF/500V

C612

4700pF/500V

C605

470pF/250V

C610
470pF/250V

IC602
PC817

t

R604
5 OHM

C622
220uF/450V

1

3

4

5

6

7

DGND

VCC ADJ FB

BD

IC601

STR-6554

C615

0.1uF/63V

C601

0.01uF/63V

ZD606

33V

R603

39K

C623

10uF/50V

R608

2.2K

R606

6.8K

R607
220

C618

470pF

ZD601
18V

D608
BA158

R610

8.2M 1/2W

R609
22 1W

TP657

TP656

T602

T601

T604

T603

T606

T607

t

RT601

9 OHM

1

2

CN603

C600

0.1uF/250V

J601

optipnal

C617

1000pF/2KV

C624

2200pF/400V

D614

RU3A

D611 BA158

D613
BYW36

D609
RU4Y

C627

560pF/2KV

R631
1K

IC603
TPL431

R633
100K

R636
220K 1%

R615 680

R637

4.7K 1%

R635
NC

C636

0.1uF/63V

C633

100uF/160V

R616

1K

R614

0.33 2W

C626
680pF/500V

C632

1000uF/63V

C638

1000uF/25V

R613

0.33 2W

C625

680pF/50V

C620
680pF/50V

3

4

6

7

8

9

14

12

15

11

2

T603

BCK-40-LF01

R611

0.18 2W

C631
1000uF/16V

VDR601

LSE-PQ0720-3-C

TP651

FOR DEGUASSING

T610

T611

T610

RST601
220 1W

GRT601

GS37-301M

T601B

FB601

T608

T606

T607

T608

T609

T612

T615

T613

MAINS COIL

1

2

DEGAUSSING COIL

Q606

2SC2230

ZD603

3.6V
D615

1N4148

L602
120uH

C642

1uF/50V

ZD602

5.1V

Q604

2SA1013

D612
BA158

R621

2.2K

C609

100uF/16V

C630

1000uF/16V

R624

22 2W

R625

430

Q605
2SC2703

CRT

Q504
2SC2482

Q506
BF422

Q505
BF423

D504

BA158

C508
1nF 50V

C506

10uF 250V

L501
10uH

CRT Board

C507

1000pF 2KV

G501

C510

10uF 250V

D501
BA158

R529
1M

ZD501
8V2

+195V

HEATER

1

2

3

4

5

CN101

1

2

3

4

5

H501

G-OUT

R-OUT

BCK-IN

B-OUT

R510
47

R511

1.2K

R513

270

R512
47

C502
390pF/50V

D503

1N4148

R515
15K 2W

R516

220 1W

R514
330

R517 2. 7K 1W

R527 2.7K 1W

R508 2.7K 1W

Q507
2SC2482

Q509
BF422

Q508
BF423

D506

BA158

R521
47

R520

1.2K

R523

270

R522
47

C503
390pF/50V

D505

1N4148

R525
15K 2W

R526

220 1W

R524
330

Q501

2SC2482

Q5013
BF422

Q502
BF423

D502

BA158

R501
47

R502

1.2K

R503

270

R504
47

C501
390pF/50V

D501

1N4148

R506

15K 2W

R507

220 1W

R505
330

1

2

3

4

H302

R528
220K

T504

T502

T503

T501

T505

T511

T510

T513

T514

T516

T512

T515

T518

T517

T519

T506

T505

T507

T508

T509

T522

T520

T523

T524

1

2

3

4

CN302

B+

+195V

H-OUT

AFC

HEATER

GND

-15V

+15V

-140V

ABL

Q302

3DD5032

C317

2n7*

C318

8n2*

D3028
BY228

C319

6n2/2KV

C321

0.022uF/400V*

D307

RU4B

L301

2.8mH

L304
36uH*

C329

2200pF 2KV

R342

470K*

D341

1N4148

D301

1N4148

R302

560

R303

180

ZD303
18V

D305
BA158

C311

470pF 500V

L302

160uH*

C320

0.39uF/400V*

C323

0.18uF/400V*

R317
56K *

T302
BCT-19G

C302

680pF 500V

Q301
2SC2482

R315

2.7K

C314

2200pF 500V

R307
100

C357
N.C

D304

BYW36

C310
470pF 500V

D303
BYW36

C309

470pF 500V

C325

4.7uF 50V

C315

1000pF/100V

C303 0.1uF *

R311

0.33 2W

C315

1000uF/25V

+13V-V

R312

0.33 2W

C316

1000uF/25V

R313

15K 2W

H-AFC

B+115V

R314

0.33 2W

C306

10uF/250V

+195V

+45V

R306
1K 2W

C312

4.7uF/63V

H-OUT

R304
22 1/2W

R316

2.2 2W

Q303

FQP630

EW

R319

270

C309

0.41uF/400V*

R318

2.7 2W*

R322

1K

R341

6.2K*

C101
33uF

9

4

5

3

8

6

2

10

1

7

SCREEN

FOCUS

5

11

T301

FBT

TP306

TP307

TP308

TP309

TP310

TP311

TP312

TP313

TP314

TP315

TP316

TP317

TP319

2KV

2KV

TP319

TP320

TP321

TP322

TP323

TP325

TP326

TP327

TP328

TP330TP331

TP332

TP333

TP334

TP335

TP337

TP336

TP338

TP339

H DEFLECTION COIL

V DEFLECTION COIL

+8V

EHT-IN

BCL-IN

HEATER

123 4567

IN-

VCC+

FBG

VCC-

VOUT

OSS

IN+

IC301

LA78141

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

OUT1+

OUT1-

VCC

IN1

N.C

MUTE

ST-BY

PGND

SGND

N.C

N.C

IN2

VCC

OUT2-

OUT2+

IC401

3P69SN:TDA7266SA

MAIN-R O

C460

0.22uF/63V

C467
4700pF

R470
10K

C461

0.22uF/63V

C466 4700pF

R471

10K

MAIN-L O

+13V-A

R461
100K

R473
100K

C481

1000uF/25V

C480

0.01uF/50V

C469

2.2uF/50V

VDR1

R350
100

R361

1.8K*

C354

220uF

D350

BA158

R351
100

VDR2

R363
270 2W*

C352

0.1uF/63V

R360

1.8K*

t

R362
50k

ZD604

3.9V

R643

390

R629

47

Q608
S8050

D617

1N4148

ZD609

5.1V

C613

47uF/16V

C641

100uF/16V

C634

47uF/160V

C603

0.01uF/100V

C640

0.01uF/100V

C639

220uF/16V

R626 220

+5V-VSP

STANDBY

+5V-STB

B+115V

+45V

+12V

+3.3V-STB

+13V-A

TP622

T643

TP621

TP623

TP627

TP625

TP624

T630

TP619

TP637

TP620

TP014

TP626

TP633

TP662

TP660

TP631

TP629

Q304

2SC1815Y

D351

1N4148

C358

0.01uF/50V

R365
150K

R364

22K

ZD304

5.1V

C353

0.1uF/63V

R354

* 2w

R353
1 2W*

R356

1.5 2W

C350

0.22uF/63V

R366

3.9K

TP331

V-GUARD

ZD108

5.1V

C128

0.01uF/100V

R131

330 1W

+5V-VP1

FOR SPEAKER

MUTE

Q460
2SC1815Y

Q462

2SA1015

R475

0

R467

1K

C408

0.01uF/100V

D461
1N4148

C462
220uF/16V

R466

2.2M

R460

1K

FM-OUT

TP401

TP403

TP402

TP404

TP405

TP406

TP407

TP408

TP409

TP410

TP411

TP412

TP823

TP820

TP819

+12V

AC 110~220V

TP106

TP107

TP109

TP113

TP112

TP108

TP201

TP202

TP203

TP204

TP205

TP206

TP207

TP208

TP209

TP210

TP211

TP212

TP213

TP214

TP215

TP001

TP002

TP003

TP004

TP005

TP006

TP007

TP008

TP009

TP010

TP011

TP012

TP013

TP014

TP015

TP016

TP017

TP216

TP217

TP218

TP219

TP220

TP221

TP222

TP223

TP224

TP225

TP226

TP227

TP228

TP229

TP230

TP231

TP232

TP233

TP235

TP241

TP248

TP450

TP451

TP452

TP454

TP431

TP430

AV-SW1 AV-SW2
TV
AV1

Side-AV

AV2

S-Vedio

CVI

LL
H

H

HH

H

H

L

L

HL

IC201
KA33V

C113

0.01uF/100V

C112

47uF/50V

R215

6.8K

R619

33 2W

ZD608

8.2V

C645

0.01uF

+8V

R127

3.3K

NON-Common Assembly

R617 10K

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

ATTENTION: HOT AREA

R308

8.2K*

FORO DEBUG TOOLS

+115V

+45V

+12V

+13V

D405

1N4148

1

2

3

4

CN201

R202

100

R201

100

C209
47uF/50V

L202

33uH

R120 100

R103

100

C127

0.01uF/100V

ZD201
5V6

3P69AP:TDA7269SA

C126

100pF/50V

ZD103

5V6

R237
1K

ZD101

8V2

C146 2.2uF/50V

C145 2.2uF/50V

C112

2.2uF/50V

C123

2.2uF/50V

K1977M(3P69AP)

!

L

N

R638
0*

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

PLDET

DC-IN

DC-OUT

FIL

PISIF

GND

CSAPDET

ADDSEL

SDA

SCL

DBXIN

DETSPE

TIMESPE

TNWID

SPECIN

DE6B

PORCH

POLCH

VCC

POLED

REG

MAIN-OUT

PLC

PTFILT

IC801

LA72702

C802 1uF/16v

C803

0.47uF

C804

4.7uF

C821

0.1uF

C805 0.1uF

C808

2.2uF

C80922uF/16v

R808

10K

R802

100

R801

100

R803 560K

C810

4.7uF

C811
22uF

C812

4.7uF

C813

4.7uF

C815

100uF

C801

1uF/16V

C819 1uF

C817

1uF

C816 2.2uF

C818 0.1uF

C423 2.2uF/50V

C424 2.2uF/50V

C820 0.1uF

L801 100uH

Q801

2SC1815Y

R805

10K

R807
270K

R806
270K

C814 33nF

C822 33nF

C800 10uF/50V

TV-Lout

TV-Rout

+5V-VSP

SDA

SCL

J804

J805

For 3P69AP only

TDA12155(For Asia Pacific)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

Vedio-Out

64

63

62

61

60

59

58

57

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

Vp2(5V)

Vcc(8V)

IF-PLL

GND2

DECSDEM

FM-IN

EHTO

AGC-Out

IREF

VSC

VIF-IN2

VIF-IN1

VDR-A

VDR-B

EWD

DECBG

SECPLL

GND1

PH1LF

PH2LF

Vp1(5V)

DECDIG

XTALOUT

XTALIN

NTSC-M

SCART-In

LED

SCART ID

AV1 SW

AV2 SW

KEY-In

VDDp(3.3V)

SDA

SCL

W.P

Mute

Stand By

IR-In

VDDc(3.3V)

GND5

VPE

VDDa(3.3V)

B-Out

G-Out

R-Out

BLKIN/SVM

BCL-In

YUV-Uin

YUV-Yin

YUV-Vin

Y-Out

Y-SNYC

Side-LIN

Side-VIN

AV-LIN

AV-RIN

Side-RIN

Audio-R

Audio-L

FBISO

H-Out

GND3

VP3(5V)

IC101

TDA12165(For LATAM)

D302

1N4148

C355

0.033uF

CRT Deflection Coil

1

2

CN350

1

2

1

2

3

CON301

1

2

3

V-OUT AV1-VIN

YUV-YIN

L-OUT AV1-LIN

YUV-UIN

R-OUT AV1-RINYUV-VI N

V-IN R-INL-IN

RCA*9

AV-VIN

R492

100K

C494

1000pF

R491

100K

C495

1n2

L490 560uH

L491 560uH

Front-LIN

For 14inch only

C418

1000pF/100V

R722
47K

L402 56uH

L401 56uH

C409

10uF

C441

10uF

C403

10uF

C404

10uF

ZD405
8V2

R415

75

Optional

C407
47uF/16V

C415
1000pF

ZD401
8V2

123 4

123 4

CN460

R+

R-L+

L-

R485

2.2M

D404

1N4148

C463

2.2uF

R205
N.C

C211

N.C

TP110

C210
N.C

TP111

TP605

TP432

TP433

TP434

TP435

TP436

TP437

TP438

TP448

TP449

Q462

2SA1015

TP344

TP346

TP345

TP348

TP343

TP340

TP341

TP347

TP349

TP802

TP803

TP804

TP805

TP806

TP806

R810

0*

TP821

R809
270K

TP641

TP642

TP643

TP640

TP644

TP414

TP413

TP807

TP808

TP809

TP810

TP811

TP812

R804 4K7

TP815

TP816

TP812

TP801

TP818

TP655

TP654

TP653

TP652

TP444

TP442

TP445

TP446

TP328

TP324

TP659

TP663

TP630

Q607

2SA1015

R629A
47
2W

2W

R639

430

D616

1N4148

R618

390

R612

0.18 2W

TP618

TP617

TP616

TP615

TP628

Block Diagrams

EN 25SK8.0L CA 9.

2010-Apr-23

Circuit Diagrams and PWB Layouts

18961_500_100422.eps

100422

Power Supply

A1 A1

R602

200K 1W

Panel Section

SW601

Mains Switch

L

N

CN603

T602

LCL-2815

T601

LCL-2815

F601

T3.15A L 250V

R601

2.2M 1W

C607

0.22uF/250V

C606

0.22uF/250V

D604

4A8BL

D605 4A8BL

D602
4A8BL

D603

4A8BL

DL601
JQX-14F

D601
1N4148

R627
10

R630

47K

R622
10K

Q602

2SC1815Y

C637

47uF/16V

C629

220uF/16V

C611

4700pF/500V

C612

4700pF/500V

C605

470pF/250V

C610
470pF/250V

IC602
PC817

t

R604
5 OHM

C622
220uF/450V

1

3

4 5

6 7

D GND

VCC ADJ FB

BD

IC601

STR-6554

C615

0.1uF/63V

C601

0.01uF/63V

ZD606

33V

R603

39K

C623

10uF/50V

R608

2.2K

R606

6.8K

R607
220

C618

470pF

ZD601
18V

D608
BA158

R610

8.2M 1/2W

R609
22 1W

T602

T601

T604

T603

T606

T607

t

RT601

9 OHM

1

2

CN603

C600

0.1uF/250V

J601

optipnal

C617

1000pF/2KV

C624

2200pF/400V

D614

RU3A

D611 BA158

D613
BYW36

D609
RU4Y

C627

560pF/2KV

R631
1K

IC603
TPL431

R633
100K

R636
220K 1%

R615 680

R637

4.7K 1%

R635
NC

C636

0.1uF/63V

C633

100uF/160V

R616

1K

R614

0.33 2W

C626
680pF/500V

C632

1000uF/63V

C638

1000uF/25V

R613

0.33 2W

C625

680pF/50V

C620
680pF/50V

3

4

6

7

8

9

14

12

15

11

2

T603

BCK-40-LF01

R611

0.18 2W

C631
1000uF/16V

VDR601

LSE-PQ0720-3-C

FOR DEGUASSING

T610

T611

T610

RST601
220 1W

GRT601

GS37-301M

T601B

FB601

T608

T606

T607

T608

T609

T612

T615T613

MAINS COIL

1

2

DEGAUSSING COIL

Q606

2SC2230

ZD603

3.6V
D615

1N4148

L602
120uH

C642

1uF/50V

ZD602

5.1V

Q604

2SA1013

D612
BA158

R621

2.2K

C609

100uF/16V

C630

1000uF/16V

R624

22 2W

R625

430

Q605
2SC2703

R461
100K

R473
100K

C481

1000uF/25V

C480

0.01uF/50V

C469

2.2uF/50V

ZD604

3.9V

R643

390

R629

47

Q608
S8050

D617

1N4148

ZD609

5.1V

C613

47uF/16V

C641

100uF/16V

C634

47uF/160V

C603

0.01uF/100V

C640

0.01uF/100V

C639
220uF/16V

R626 220

+5V-VSP

STANDBY

+5V-STB

B+115V

+45V

+12V

+3.3V-STB

+13V-A

TP622

T643

TP621

TP623

TP627

TP625

TP624

T630

TP619

TP637

TP620

TP014

TP626

TP633

TP662

TP660

TP631

TP629

FOR SPEAKER

MUTE

Q460

2SC1815Y

Q462

2SA1015

R475

0

R467

1K

C408

0.01uF/100V

D461
1N4148

C462
220uF/16V

R466

2.2M

R460

1K

TP401

TP410

TP411

TP412

+12V

AC 110~220V

R619

33 2W

ZD608

8.2V

C645

0.01uF

+8V

NON-Common Assembly

R617 10K

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

ATTENTION: HOT AREA

+115V

+45V

+12V

+13V

D405

1N4148

!

L

N

R638
0*

123 4

123 4

CN460

R+

R-L+

L-

R485

2.2M

D404

1N4148

C463

2.2uF

TP605

TP641

TP642

TP643

TP640

TP644

TP414

TP413

TP659

TP663

TP630

Q607

2SA1015

R629A
47
2W

2W

R639

430

D616

1N4148

R618

390

R612

0.18 2W

TP618

TP617

TP616

TP615

TP628

10. Circuit Diagrams and PWB Layouts

21SL9 Mono Carrier: Power Supply

EN 26SK8.0L CA 10.

2010-Apr-23

Circuit Diagrams and PWB Layouts

18961_501_100422.eps

100422

Line and Frame deflection

A2 A2

B+

+195V

H-OUT

AFC

HEATER

GND

-15V

+15V

-140V

ABL

Q302

3DD5032

C317

2n7*

C318

8n2*

D3028
BY228

C319

6n2/2KV

C321

0.022uF/400V*

D307

RU4

B

L301

2.8mH

L304
36uH*

C329

2200pF 2KV

R342

470K*

D341

1N4148

D301

1N4148

R302

560

R303

180

ZD303
18

V

D305

BA158

C311

470pF 500

V

L302

160uH*

C320

0.39uF/400V*

C323

0.18uF/400V*

R317
56K *

T302

BCT-19G

C302

680pF 500V

Q301
2SC248

2

R315

2.7K

C314

2200pF 500

V

R307

100

C357
N.C

D304

BYW

36

C310
470pF 500

V

D303
BYW3

6

C309

470pF 500V

C325

4.7uF 50V

C315

1000pF/100V

C303 0.1uF *

R311

0.33 2W

C315

1000uF/25

V

+13V-

V

R312

0.33 2W

C316

1000uF/25V

R313

15K 2W

H-AF

C

B+115

V

R314

0.33 2W

C306

10uF/250V

+195V

+45V

R306
1K 2W

C312

4.7uF/63V

H-OU

T

R304

22 1/2W

R316

2.2 2W

Q303

FQP630

EW

R319

27

0

C309

0.41uF/400V*

R318

2.7 2W*

R322

1K

R341

6.2K*

C101
33uF

9

4

5

3

8

6

2

10

1

7

SCREEN

FOCUS

5

1

1

T301

FB

T

TP306

TP307

TP30

8

TP309

TP310

TP31

1

TP31

2

TP313

TP314

TP315

TP316

TP317

TP319

2KV

2KV

TP319

TP320

TP32

1

TP322

TP323

TP325

TP326

TP327

TP328

TP330

TP331

TP33

2

TP333

TP33

4

TP33

5

TP337

TP33

6

TP338

TP339

H DEFLECTION COIL

V DEFLECTION COIL

+8V

EHT-IN

BCL-IN

HEATER

123 4567

IN-

VCC+

FBG

VCC-

VOUT

OSS

IN+

IC301

LA78141

MAIN- RO

MAIN- LO

+13V-A

VDR1

R350
10

0

R361

1.8K

*

C354

220uF

D350

BA15

8

R351
100

VDR

2

R363
270 2W*

C352

0.1uF/63V

R360

1.8K*

t

R362
50k

+5V-VSP

STANDBY

+5V-STB

B+115

V

+45V

+12V

+3.3V-ST

B

+13V-A

Q304

2SC1815Y

D351

1N4148

C358

0.01uF/50V

R365
150K

R364

22K

ZD304

5.1V

C353

0.1uF/63V

R354

* 2w

R353
1 2W*

R356

1.5 2W

C350

0.22uF/63V

R366

3.9K

TP331

V-GUARD

ZD108

5.1

V

C128

0.01uF/100V

R131

330 1

W

+5V-VP1

MUT E

+8

V

!

!

!

!

!

!

!

R308

8.2K*

R237
1K

D302

1N4148

C355

0.033uF

CRT Deflection Coil

1

2

CN350

1

2

1

2

3

CON301

1

2

3

TP344

TP346

TP345

TP348

TP34

3

TP340

TP341

TP347

TP349

TP328

TP324

21SL9 Mono Carrier: Frame Deflection

EN 27SK8.0L CA 10.

2010-Apr-23

Circuit Diagrams and PWB Layouts

18961_502_100422.eps

100422

Tuner

A3 A3

1

2

3

5

4

SAW101

K1976M(3P69SN

)

1

2

3

4

5

6

7

8

9

10

11

IF-OUT

GND

+33V

N.C

+5V

SDA

SCL

A.S

N.C

AGC

N.C

A101

TUNER

TP101

R207 47

K

C201 10uF/16V

C204

100pF/50V

C205

100pF/50V

C202

0.1uF/63V

C207

0.1uF

C208

0.01uF/50V

C203

2u10.012CF

0.01uF/50V

C213

47uF/16

V

C206
100uF/16V

R204 100

R206
10K

R203

100

R208 680

R209

820

R212

27

R213

1.2K

R217

5.6K

R216
75

TP104

L203

100uH

TP105

TP10

2

TP103

Q202

2SC2717

L201

0.82uH

RF-AGC

SCL

SDA

+5V-VSP

+45V

+8V

VIF-IN1

VIF-IN2

TP10

6

TP107

TP109

TP113

TP112

TP108

IC201
KA33V

C113

0.01uF/100V

C112

47uF/50V

R215

6.8K

C209

47uF/50

V

L202

33uH

K1977M(3P69AP)

R205

N.C

C211

N.C

TP110

C210

N.C

TP111

21SL9 Mono Carrier: Tuner

EN 28SK8.0L CA 10.

2010-Apr-23

Circuit Diagrams and PWB Layouts

18961_503_100422.eps

100422

AV Switch

A4 A4

+5V-VP1

LED

KEY-I

N

AV1-SW

AV2-S

W

C408
1uF/50V

+5V-STB

+3.3V- STB

VLR

P0

1

Side AV Board

1

2

3

4

CN01

FOR SIDE AV IN

1

2

3

4

CN401

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

0Y

2Y

Y-COM

3Y

1Y

INH

VEE

VSS SW-B

SW-A

3X

0X

X-COM

1X

2X

VCC

IC402

HEF4052

Q402
2SC1815Y

R411
18

0

R418
68

R447
150K

R446
150K

R412

75

R414

75

R413
75

ZD406

8V2

ZD490

8V2

R490

75

R443

7

5

ZD402

8V2

ZD404

8V

2

ZD403

8V2

Q401
2SC1815Y

R430

1.5K

R405

100

R421
100K

R424
100K

Q403

2SC1815Y

R431

1.5

K

R404
100

R420

100K

R422

100

K

AV-ROUT

+12 V

AV-Vout

Front-RIN

YUV-YIN

YUV-UIN

YUV-VIN

AV1-SW

AV2-S

W

+12V

TV-Lou

t

AV-LOUT

R417

47K

R416

47

K

C406

1n2

C405

1n

2

C411

10uF/16V

C417

1000pF

R423

47

K

C412

10uF/16V

C402

10u

F

C401 10uF

C416
1000pF

TV-Rout

C419
47uF/16V

FM-OUT

TP24

1

TP248

TP450

TP451

TP452

TP454

TP43

1

TP430

AV-SW1 AV-SW2
TV
AV1

Side-AV

AV2

S-Vedio

CVI

LL
H

H

HH

HH

L

L

HL

SDA

SCL

V-OUT AV1-VIN

YUV-YIN

L-OUT AV1-LINYUV-UIN

R-OUT AV1-RIN

YUV-VI

N

V-IN R-INL-IN

RCA*9

AV-VIN

R492

100K

C494

1000p

F

R491

100K

C495

1n2

L490 560uH

L491 560uH

Front-LIN

For 14inch only

C418

1000pF/100V

R722

47

K

L402 56u

H

L401 56uH

C409

10uF

C441

10u

F

C403

10uF

C404

10u

F

ZD405

8V2

R415

75

Optional

C407
47uF/16V

C415
1000pF

ZD401

8V2

TP432

TP433

TP434

TP435

TP43

6

TP437

TP438

TP448

TP449

TP44

4

TP44

2

TP445

TP446

21SL9 Mono Carrier: AV Switch

EN 29SK8.0L CA 10.

2010-Apr-23

Circuit Diagrams and PWB Layouts

18961_504_10042.eps

100422

Audio amplifier

A5 A5

AV-ROU

T

AV1-S

W

AV2-SW

+12V

TV-Lout

AV-LOUT

LE

D

KEY-IN

+5V-ST

B

IR-IN

TV-Rout

+13V-V

H-AFC

B+115

V

+195V

EHT-IN

BCL-IN

HEATER

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

OUT1+

OUT1-

VCC

IN1

N.C

MUTE

ST-BY

PGND

SGND

N.C

N.C

IN2

VCC

OUT2-

OUT2+

IC401

3P69SN:TDA7266SA

MAIN -RO

C460

0.22uF/63V

C467
4700pF

R470
10K

C461

0.22uF/63V

C466 4700pF

R471

10K

MAIN -LO

+13V-A

R461
100K

R473
100

K

C481

1000uF/25V

C480

0.01uF/50V

C469

2.2uF/50V

VDR1

VDR2

+13V-

A

V-GUARD

+5V-VP

1

MUT E

Q460

2SC1815Y

Q462

2SA101

5

R475

0

R467

1K

C408

0.01uF/100V

D461
1N414

8

C462
220uF/16V

R466

2.2M

R460

1

K

FM-OUT

TP40

1

TP403

TP402

TP40

4

TP405

TP406

TP407

TP408

TP40

9

TP410

TP411

TP41

2

TP823

TP820

TP819

+13

V

D405

1N4148

3P69AP:TDA7269SA

1

2

3

4

5

6

7

8

9

10

11

1

2

24

23

22

21

20

19

18

17

16

15

14

13

PLDET

DC-IN

DC-OUT

FIL

PISIF

GND

CSAPDET

ADDSEL

SDA

SCL

DBXIN

DETSPE

TIMESPE

TNWID

SPECIN

DE6B

PORCH

POLCH

VCC

POLED

REG

MAIN-OUT

PLC

PTFILT

IC801

LA72702

C802 1uF/16v

C803

0.47uF

C804

4.7u

F

C821

0.1uF

C805 0.1uF

C808

2.2uF

C80922uF/16

v

R808

10K

R802

10

0

R801

100

R803 560

K

C810

4.7uF

C811
22uF

C812

4.7uF

C813

4.7uF

C815

100uF

C801

1uF/16V

C8

19 1uF

C817

1uF

C816 2.2uF

C818 0.1uF

C423 2.2uF/50V

C424 2.2uF/50V

C820 0.1uF

L801 100u

H

Q801

2SC1815Y

R805

10K

R807
270

K

R806
270K

C814 33nF

C822 33nF

TV-Lout

TV-Rou

t

+5V-VSP

SDA

SCL

J804

J805

For 3P69AP only

R485

2.2M

D404

1N414

8

C463

2.2uF

Q462

2SA1015

TP802

TP803

TP804

TP80

5

TP806

TP806

R810

0*

TP821

R809

270K

TP414

TP413

TP807

TP808

TP809

TP810

TP811

TP81

2

R804 4K7

TP81

5

TP816

TP81

2

TP801

TP818

+12

V

21SL9 Mono Carrier: Audio amplifier

EN 30SK8.0L CA 10.

2010-Apr-23

Circuit Diagrams and PWB Layouts

18961_505_100422.eps

100422

CPU and decoder

A6 A6

R419

100

R141

1K

R133 39K 1%

R111

100

R123 100

R104 100

R122 12K

R140 1K

R121

0.1uF/63V

C107

10uF/16V

C142

0.15uF/63V

C121

0.22uF/63V

C122

0.01uF/100V

C110

0.022uF

C105
10uF/16V

X101

24.576MHz

C1310.01uF/100V

C117
100uF/16V

C106

10uF/16V

C132

0.1uF/63V

L103 100uH

C141

6800pF/100V

C124

1.5uF/50V

C140

1000pF/100V

C139

1000pF/100V

C138

1000pF

C137

0.022uF/100V

C102 10uF/16V

C129

0.1uF/100V

L102

10uH

C109

390

L101 10uH

C103

10uF/16V

R246

39K

R204
33K

AV-Vout

+5V-VSP

+8V

FM-OUT

EHT-IN

RF-AGC

VIF-IN2

VIF-IN1

VDR1

VDR2

EW

+5V-VP1

LED

KEY-IN

AV1-SW

AV2-SW

C111

0.1uF/63V

R464 1K

R463

1K

R13412K

R106 100

C113

0.1uF/63V

C136

0.1uF/50V

C120
10uF/16V

L107

10uH

C114

0.1uF/63V

C116 0.1uF/63V

C115 0.1uF/63V

R115 100

R117 100

R116 100

R109 100

R108 100

R107 100

R110 100

R143

10K

R462 1K

R126

100

R125

100

1

2

3

54

6

7

8

E0

E1

E2

VSS

VCC

W.P

SCL

SDA

IC001

24C08

C133

0.01uF/100V

C134

0.1uF/50V

C147

560pF

C135

0.1uF/50V

C143

100uF/16V

C119

100uF/16V

C118

100uF/16V

L104 10uH

L105 10uH

L001
10uH

L106
10uH

R129 1.8K

ZD104

8V2

ZD105

8V2

ZD106

8V2

R102

8V2

R101

39K

R118 100

ZD107A

27K

+3.3V-STB

BCK-IN

R-OUT

G-OUT

B-OUT

BCL-IN

YUV-UIN

YUV-YIN

YUV-VIN

V-GUARD

+5V-VSP

H-OUT

H-AFC

MAIN -RO

MAIN -LO

Front-RIN

AV-ROUT

AV-LOUT

AV-VIN

Front-LIN

+3.3V-STB

IR-IN

STANDBY

MUT E

R113

100

R114 100

R112

3.3K

R136

3.3K

R135

3.3K

R124
1K

R128

3.3K

R185

10K

SCL

SDA

+3.3V-STB

+5V-STB

+3.3V-STB

RF-AGC

SCL

SDA

+5V-V

SP

+45V

+8V

VIF-IN1

VIF-IN2

+12V

AV-Vout

Front-RIN

YUV-YIN

YUV-UIN

YUV-VIN

C130

0.1uF/100V

+195V

HEATER

1

2

3

4

5

CN101

G-OUT

R-OUT

BCK-IN

B-OUT

1

2

3

4

CN302

TP201

TP202

TP203

TP204

TP205

TP206

TP207

TP208

TP209

TP210

TP211

TP212

TP213

TP214

TP215

TP001

TP002

TP003

TP004

TP005

TP006

TP007 TP008

TP009

TP010

TP011

TP012

TP013

TP014

TP015

TP016

TP017

TP216

TP217

TP218

TP219

TP220

TP221

TP222

TP223

TP224

TP225

TP226

TP227

TP228

TP229

TP230

TP231

TP232

TP233

TP235

R127

3.3K

FORO DEBUG TOOLS

1

2

3

4

CN201

R202

100

R201

100

R120 100

R103

100

C127

0.01uF/100V

ZD201
5V6

ZD101

8V2

C146 2.2uF/50V

C145 2.2uF/50V

C112

2.2uF/50V

C123

2.2uF/50V

C800 10uF/50V

TDA12155(For Asia Pacific)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

Vedio-Out

64

63

62

61

60

59

58

57

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

Vp2(5V)

Vcc(8V)

IF-PLL

GND2

DECSDEM

FM-IN

EHTO

AGC-Out

IREF

VSC

VIF-IN2

VIF-IN1

VDR-A

VDR-B

EWD

DECBG

SECPLL

GND1

PH1LF

PH2LF

Vp1(5V)

DECDIG

XTALOUT

XTALIN

NTSC-M

SCART-In

LED

SCART ID

AV1 SW

AV2 SW

KEY-In

VDDp(3.3V)

SDA

SCL

W.P

Mute

Stand By

IR-In

VDDc(3.3V)

GND5

VPE

VDDa(3.3V)

B-Out

G-Out

R-Out

BLKIN/SVM

BCL-In

YUV-Uin

YUV-Yin

YUV-Vin

Y-Out

Y-S

NYC

Side-LIN

Side-VIN

AV-LIN

AV-RIN

Side-RIN

Audio-R

Audio-L

FBISO

H-Out

GND3

VP3(5V)

IC101

TDA12165(For LATAM)

AV-VIN

Front-LIN

21SL9 Mono Carrier: CPU & Decoder

EN 31SK8.0L CA 10.

2010-Apr-23

Circuit Diagrams and PWB Layouts

18961_506_100422.eps

100422

21SL9 Layout Mono Carrier (Top Side)

EN 32SK8.0L CA 10.

2010-Apr-23

Circuit Diagrams and PWB Layouts

18961_507_100422.eps

100422

21SL9 Layout Mono Carrier (Bottom Side)

EN 33SK8.0L CA 10.

2010-Apr-23

CRT Board

18961_508_100422.eps

100422

CRT Board

B B

CRT

Q504
2SC2482

Q506
BF422

Q505
BF423

D504

BA158

C508
1nF 50V

C506

10uF 250V

L501
10uH

C507

1000pF 2KV

G501

C510

10uF 250V

D501
BA158

R529

1M

ZD501
8V2

1

2

3

4

5

H501

R510
47

R511

1.2K

R513

270

R512
47

C502
390pF/50V

D503

1N4148

R515
15K 2W

R516

220 1W

R514
330

R517 2.7K 1W

R527 2.7K 1W

R508 2.7K 1W

Q507
2SC2482

Q509
BF422

Q508

BF423

D506

BA158

R521
47

R520

1.2K

R523

270

R522

47

C503
390pF/50V

D505

1N4148

R525
15K 2W

R526

220 1W

R524
330

Q501

2SC2482

Q5013
BF422

Q502
BF423

D502

BA158

R501
47

R502

1.2K

R503

270

R504
47

C501

390pF/50V

D501

1N4148

R506

15K 2W

R507

220 1W

R505
330

1

2

3

4

H302

R528
220K

T504

T502

T503

T501

T505

T511

T510

T513

T514

T516

T512

T515

T518

T517

T519

T506

T505

T507

T508 T509

T522

T520

T523

T524

Circuit Diagrams and PWB Layouts

EN 34SK8.0L CA 10.

2010-Apr-23

Layout CRT Board

18961_509_100422.eps

100422

Top Layer

Bottom Layer

Circuit Diagrams and PWB Layouts

EN 35SK8.0L CA 10.

2010-Apr-23

Side AV Panel

18961_510_100422.eps

100422

Side AV

D D

Side AV Panel (Top Layer)

Schematic

Side AV Panel (Bottom Layer)

5800 G1SL9P-6200

VLR

P01

Side AV Board

1

2

3

4

CN01

FOR SIDE AV IN

Circuit Diagrams and PWB Layouts

EN 36SK8.0L CA 10.

2010-Apr-23