Datasheet TC5.1L CA Datasheet (Philips)

Color Television Chassis

TC5.1L

CA

H_17480_000.eps

050707

Contents Page

1. Technical Specifications, Connections and Chassis
Overview 2

2. Safety Instructions, Warnings, and Notes 4

3. Directions for Use 6

4. Mechanical Instructions 6

5. Service Modes, Error Codes, and Fault Finding 7

6. Block Diagrams, Test Point Overviews, and

Waveforms

Chassis Block Diagram 9

7. Circuit Diagrams and CBA Layouts Diagram CBA
Main Board 40-M134PH-MAG1XG 10 11-12
CRT Panel 13 14
Keyboard Panel 40-134SL6-KEA1XG 14
Keyboard Panel 40-134SL6-KEA1XG 14

8. Alignments 15

9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 18

10. Spare Parts List 24

11. Revision List 26

©

Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
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 JY 0770 BU CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 17480

EN 2 TC5.1L CA1.

Technical Specifications, Connections and Chassis Overview

1. Technical Specifications, Connections and Chassis Overview

1.1 Technical Specifications

Tuning - technology : PLL
Tuning - presets/channels : 181
Freq Bands : Full-Cable
TV Systems Off Air/ Cable : NTSC M (3.58 - 4.5)
TV Systems Multi : NTSC
Mains voltage : 90-140V
Mains frequency : 50/60Hz
Standby Power consumption : <1W
Sound Systems : BTCS SAP
Audio output (RMS) : 2x5W
Scan Modes : 4:3
Sound Features : AVL, Mute
Sound Control : 4 sound modes

: Balance
: Bass Boost
: Treble Boost,
: Volume

Menu Languages : American English,

French, Spanish
Clock/Timer Function : Sleep timer
Terrestrial Antenna in : 75 Ohm (F type)

Figure 1-2 Rear audio and video connections

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1.2 Connection overview

1.2.1 Connections

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Cinch: Video CVBS - Out, Audio - Out

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

/ 75 ohm kq

PP

/10 kohm kq

RMS

/ 10 kohm kq

RMS

Cinch: Video YUV- In

Gn - Video Y 1 V
Bu - Video U 0.7 V
Rd - Video V 0.7 V

/ 75 ohm jq

PP

/ 75 ohm jq

PP

/ 75 ohm jq

PP

Cinch: Audio - Out

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

/ 10 kohm kq

RMS

/ 10 kohm kq

RMS

Figure 1-1 Aerial connection

Aerial - In

- - F-type Coax, 75 ohm D

H_17480_008.eps

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Figure 1-3 Side audio and video connections

S-Video (Hosiden): Video Y/C - In

1 - Ground Y Gnd H
2 - Ground C Gnd H
3 - Video Y 1 V
4 - Video C 0.3 V

/ 75 ohm j

PP

P / 75 ohm j

PP

Cinch: Video CVBS - In, Audio - In

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

/ 75 ohm jq

PP

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

Technical Specifications, Connections and Chassis Overview

1.3 Chassis Overview

See Chapter 10, Parts List.

EN 3TC5.1L CA 1.

EN 4 TC5.1L CA2.

Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes

Index of this chapter:

2.1 Safety Instructions

2.2 Maintenance Instructions

2.3 Warnings

2.4 Notes

2.1 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 Mohm and 12 Mohm.

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.

2.2 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.

2.3 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).

V

Figure 2-1 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. Available
ESD protection equipment:
– Complete kit ESD3 (small tablemat, wristband,

connection box, extension cable and earth cable) 4822
310 10671.

– Wristband tester 4822 344 13999.

• 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.

2.4 Notes

2.4.1 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

). Discharge

DC

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Safety Instructions, Warnings, and Notes

EN 5TC5.1L CA 2.

semiconductors in the unit, irrespective of the type
indication on these semiconductors.

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

2.4.2 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 kohm).

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

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

• 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.

2.4.3 Rework on BGA (Ball Grid Array) ICs

General

Although (LF)BGA assembly yields are very high, there may
still be a requirement for component rework. By rework, we
mean the process of removing the component from the PWB
and replacing it with a new component. If an (LF)BGA is
removed from a PWB, the solder balls of the component are
deformed drastically so the removed (LF)BGA has to be
discarded.

-9

), or pico-farads (p= x10

-12

2.4.4 Lead-free Solder

Philips CE is producing lead-free sets (PBF) from 1.1.2005
onwards.

Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 5 and 6 refer to the production year, digits
7 and 8 refer to production week (in example below it is 1991
week 18).

MODEL :

-6

),

).

PROD.NO:

Regardless of the special lead-free logo (which is not always
indicated), one must treat all sets from this date onwards
according to the rules as described below.

32PF9968/10

AG 1A0617 000001

Figure 2-2 Serial number example

MADE IN BELGIUM

220-240V 50/60Hz

~

128W

VHF+S+H+UHF

BJ3.0E LA

S

E_06532_024.eps

130606

P

b

Figure 2-3 Lead-free logo

Device Removal

As is the case with any component that is being removed, it is
essential when removing an (LF)BGA, that the board, tracks,
solder lands, or surrounding components are not damaged. To
remove an (LF)BGA, the board must be uniformly heated to a
temperature close to the reflow soldering temperature. A
uniform temperature reduces the risk of warping the PWB.
To do this, we recommend that the board is heated until it is
certain that all the joints are molten. Then carefully pull the
component off the board with a vacuum nozzle. For the
appropriate temperature profiles, see the IC data sheet.

Area Preparation

When the component has been removed, the vacant IC area
must be cleaned before replacing the (LF)BGA.
Removing an IC often leaves varying amounts of solder on the
mounting lands. This excessive solder can be removed with
either a solder sucker or solder wick. The remaining flux can be
removed with a brush and cleaning agent.
After the board is properly cleaned and inspected, apply flux on
the solder lands and on the connection balls of the (LF)BGA.
Note: Do not apply solder paste, as this has been shown to
result in problems during re-soldering.

Device Replacement

The last step in the repair process is to solder the new
component on the board. Ideally, the (LF)BGA should be
aligned under a microscope or magnifying glass. If this is not
possible, try to align the (LF)BGA with any board markers.
So as not to damage neighboring components, it may be
necessary to reduce some temperatures and times.

More Information

For more information on how to handle BGA devices, visit this
URL: www.atyourservice.ce.philips.com (needs subscription,
not available for all regions). After login, select “Magazine”,
then go to “Repair downloads”. Here you will find Information
on how to deal with BGA-ICs.

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
clean the solder-joint from old tin and re-solder with new
tin.

• Use only original spare-parts listed in the Service-Manuals.
Not listed standard material (commodities) has to be
purchased at external companies.

• Special information for lead-free BGA ICs: these ICs will be
delivered in so-called "dry-packaging" to protect the IC
against moisture. This packaging may only be opened
shortly before it is used (soldered). Otherwise the body of
the IC gets "wet" inside and during the heating time the
structure of the IC will be destroyed due to high (steam-)
pressure inside the body. If the packaging was opened
before usage, the IC has to be heated up for some hours
(around 90°C) for drying (think of ESD-protection!).

Do not re-use BGAs at all!

EN 6 TC5.1L CA3.

Directions for Use

• For sets produced before 1.1.2005, containing leaded
soldering tin and components, all needed spare parts will
be available till the end of the service period. For the repair
of such sets nothing changes.

In case of doubt whether the board is lead-free or not (or with
mixed technologies), you can use the following method:

• Always use the highest temperature to solder, when using
SAC305 (see also instructions below).

• De-solder thoroughly (clean solder joints to avoid mix of
two alloys).

Caution: For BGA-ICs, you must use the correct temperature­profile, which is coupled to the 12NC. For an overview of these
profiles, visit the website www.atyourservice.ce.philips.com
(needs subscription, but is not available for all regions)
You will find this and more technical information within the
"Magazine", chapter "Repair downloads".
For additional questions please contact your local repair help
desk.

2.4.5 Alternative BOM identification

In September 2003, Philips CE introduced a change in the way
the serial number (or production number, see Figure 2-1) is
composed. From this date on, the third digit in the serial
number (example: AG2B0335000001) indicates the number of
the alternative BOM (Bill of Materials used for producing the
specific model of TV set). 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 O.E.M.s.
By looking at the third digit of the serial number, the service
technician can see if there is more than one type of B.O.M.
used in the production of the TV set he is working with. He can
then consult the At Your Service Web site, where he can type
in the Commercial Type Version Number of the TV set (e.g.
28PW9515/12), after which a screen will appear that gives
information about the number of alternative B.O.M.s used.
If the third digit of the serial number contains the number 1
(example: AG1B033500001), then there is only one B.O.M.
version of the TV set on the market. If the third digit is a 2
(example: AG2B0335000001), then there are two different
B.O.M.s. Information about 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.

2.4.6 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. Directions for Use

You can download this information from the following websites:
http://www.philips.com/support
http://www.p4c.philips.com

4. Mechanical Instructions

See Chapter 10, Parts List.

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

5.1 Trouble Shooting

5.1.1 Can not Power On

EN 7TC5.1L CA 5.

Can not Power On

Fuse OK?

(1) Check if B+ shorted to earth.
(2) To check whether D822 and R821 are

N

(3) To check whether D823 and R823 are

Is it IC801 Pin 1
shorted to earth?

Y

Check/Replace IC801

5.1.2 No Raster, Sound OK

No Raster
Sound OK

Check B+,

Y Y

turnoff.

turnoff. And whether C836 shorted.

+12V, Ok?

N

Is DB801 OK?

NN

Y

Check the components such as C801, C802, C806, C807 and C815

Is power supply for IC101 correct?
If not, check Q820, Q821, Q007, Q008,
D001

Check Horizontal Scan circuit:
Check H-Vcc and H-out of IC 101
Check Q401, T401 and Q411

Check standby circuit: Check Pin64 of
IC101, Check Q825, Q824, Q823, Q822.

Replace DB801

Figure 5-1 Can not Power On

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Is the power
supply of Q401
and Q411 ok?

N

To check whether R404, C401, T401,
Q401, R422 are ok?

Check Pin 13
(H-OUT) voltage
ok?

Y

Is there any shorted
in the scan part of
the circuit?

Change IC101

Y

N

Y

N

5.1.3 Raster OK, Sound OK, No TV/AV picture

Raster OK, Sound OK, No TV/AV picture

Check whether Q917 is
ok?

N

Replace Q917

Y Y

Replace C238

N

Check each
output voltage of
FBT

Change the
shorted part.

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Figure 5-2 No Raster, Sound OK

Change IC901 Check C238, ok?

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Figure 5-3 Raster OK, Sound OK, No TV/AV picture

EN 8 TC5.1L CA5.

5.1.4 Raster OK, Sound OK, No AV picture

Raster OK, Sound OK, No AV picture

Service Modes, Error Codes, and Fault Finding

Is the signal waveform at Pin 12 and
Pin 14 of IC901 right?

Y

Check Q917, Q918, Q919, ok?

N

Replace the fail component.

5.1.5 Raster OK, Sound OK, No TV picture

Raster OK, Sound OK, No TV picture

Is the signal waveform at Pin 15 of IC901
right?

N

To check whether R903, C903, R902

N

and R905, C908, R908 are ok?

Replace IC901

Y

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Figure 5-4 Raster OK, Sound OK, No AV picture

Replace
IC901

Y

Check R234, Q204, R235, C229

5.1.6 No picture, dense noise dots

No picture, dense noise
dots

Is the antenna feed line
or the adapter broken?

Y

Handing the antenna
fault

N

Is the signal at Pin SCL,
SDA of tuner ok?

Check signal at P5, P57, P58,

P59, and P60 of IC101 and
replace the abnormal relative
circuit

Figure 5-5 Raster OK, Sound OK, No TV picture

Is the signal at
Pin41, Pin42 of
IC101 ok?

N

Is the signal at IF
pin of the tuner ok?

N

N N

Y

G_16340_007.eps

Check/Replace

Y

IC101

Check the relative
circuit of Q101,

Y

Z141 etc

Is the supply
voltage of tuner ok?

Y

Check/Replace
IC201, IC202,
D101.

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Check/Replace
Tuner

Y

Check EEPROM

G_16340_009.eps

Figure 5-6 No picture, dense noise dots

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Block Diagrams, Test Point Overviews, and Waveforms

6. Block Diagrams, Test Point Overviews, and Waveforms

Chassis Block Diagram

EN 9TC5.1U CA 6.

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Circuit Diagrams and CBA Layouts

7. Circuit Diagrams and CBA Layouts

Main Board 40-M134PH-MAG1XG

EN 10TC5.1U CA 7.

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Circuit Diagrams and CBA Layouts

Layout Main Board 40-M134PH-MAG1XG (Top Side)

EN 11TC5.1U CA 7.

H_17480_002.eps

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Circuit Diagrams and CBA Layouts

Layout Main Board 40-M134PH-MAG1XG (Bottom Side)

EN 12TC5.1U CA 7.

H_17480_003.eps

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CRT Panel

Circuit Diagrams and CBA Layouts

EN 13TC5.1U CA 7.

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Circuit Diagrams and CBA Layouts

EN 14TC5.1U CA 7.

Layout CRT Panel

Keyboard Panel 40-134SL6-KEA1XG

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Layout CRT Panel

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Layout Front IR Panel 40-134SL6-IRA1XG

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8. Alignments

Alignments

EN 15TC5.1L CA 8.

8.1 How to Put the Set into Factory Mode

• Press the “D-MODE” button on the remote control.

• Press the “OK” button on the remote control.

• Press the “CH+” or the “CH-” button to select the parameter
you want to adjust.

• Press the “VOL+” or the “VOL-” button to adjust the
selected parameter.

• To put the new values into the memory, leave the factory
mode with the “D_MODE” button on the remote control.

22

8.2 Adjustment of the B+ (BAT) voltage

1. Apply the Philips standard test pattern to the RF input.

2. Connect a DC voltmeter (range >200 V) to pins 1 (GND)
and 3 (+) of S804 [1].

3. Adjust potentiometer VR802 [2] in STANDARD mode in
such a way the voltage reading is 130 +/- 0.5 V.

21

8.3 RF AGC Alignment:

1. Connect a test circuit as depicted in figure “Test circuit”.

2. Apply an 8-scale gray signal (80 dBμV).

3. Adjust the AGC data until the output of the test circuit
becomes 0.4 V (p-p) ±0.05 V.

4. Change the 8-scale gray signal to 60 dBμV.

5. The shown value of CRO should be the same as while
receiving the 80 dBμV signal. If not, repeat step 3 and 4
until the results for 60 dBμV and 80 dBμV input signal are
the same.

Figure 8-1 Test pin & potentiometer position

Q101

D2

C1

1N60

33pF

D1

C2

1N60

100pFR1100k

Figure 8-2 Test circuit

TO CRO

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EN 16 TC5.1L CA8.

Alignments

8.4 Screen & Focus Voltage Adjustment

1. Apply the test pattern signal in normal status.

2. Enter the Factory mode

3. Press the "TV/AV" button to stop the vertical scan (Note:
the RC/GC/BC is preset to 80, GD/BD to 40)

4. Adjust the SCREEN potentiometer on the line output
transformer in such a way the horizontal line is just visible
on the screen.

5. Turn on the vertical output, and adjust the "FOCUS"
potentiometer on the line output transformer in such a way
the focus is maximized.

8.5 White Balance Adjustment (NORMAL)

1. Choose a white pattern 27 IRE (192.8 mV)

2. Measure the picture with a color analyzer.

3. Adjust RC, GC and BC.

4. Choose a white pattern 67 IRE (478.57 mV).

5. Measure the picture with a color analyzer.

6. Adjust GD and BD.

7. Repeat all previous steps until you get the right color on
both dark and bright picture.

8. Adjust RC-C, GC-C, BC-C, GD-C and BD-C for Cool color
temperature.

9. Adjust RC-W, GC-W, BC-W, GD-W and BD-W for Warm
color temperature.

See figure “Color temperature settings” for reference.

value). It should give the maximum peak white value in MASA,
sufficing the local dooming synchronously.

Table 8-1 Color temperature settings

Picture Mode Color Temperature (K) Δuv Y

Cool 12000 ±15% 0.000 ±0.005 90 ±15%

Normal 9300 ±10% 0.000 ±0.004 90 ±15%

Warm 6500 ±15% 0.000 ±0.005 90 ±15%

8.6 Adjustment of Sub-brightness

1. Apply the Grey-scale/Color bar (NTSC signal) to the AV
input, in normal status.

2. Enter Factory alignment menu 5.

3. Select BRTC.

4. Adjust the sub-brightness, until the 2nd dark bar of 8 level
Grey scales can just be seen.

8.7 Picture Geometry Adjustment

1. Apply the Philips standard testing pattern in normal status.

2. Then enter menu 3.

3. Adjust the following data to get the minimum distortion:
a. HPOS6 (Horizontal Centre).
b. PARA6 (Level).
c. TRAP6 (Trapezium).
d. HSIZE6 (Horizontal Size).
e. CNRT6 (Top).
f. CNRB6 (Bottom).

4. Apply the Philips standard testing pattern in normal status.

5. Enter menu 3.

6. Adjust the following data to get the minimum distortion:
a. HIGH6 (Height).
b. VP60 (Vertical Center).
c. VLIN6 (Linearity).
d. VSC6 (Vertical-S Correction).

8.8 The Peak White Adjustment

In Sports status, apply the peak white signal with a 14x14 cm
window to the AV input (Brightness = 52, Contrast = 98). Enter
factory alignment menu 5, select SCNT to adjust the sub­contrast until the spec of the window is 255 ±10 Nit (reference

Alignments

EN 17TC5.1L CA 8.

8.9 Initialization

Put the set into “Factory Mode” (see “How to Put the Set into
Factory Mode”, the first item of this chapter). Press the
"SOUND" button, the screen displays "WAIT". When the

8.10 EEPROM Data:

Note: although all items are adjustable, we only recommend to

adjust the items with an asterisk (*). The other items are

adjustable as well, but we strongly discourage adjusting them.
screen displays FGSFGSFGSFG "OK", the initialization is
finished.

Table 8-2 EEPROM Data

EEPROM data

FAC 01 FAC 02

RC* GC* BC* GD* BD* HIGH5 VP50 VLIN5 VSC5 VBLK5 VCEN5

80 80 80 40 40 13 03 0A 0C 00 18

FAC 02

HIGH6* VP60* VLIN6* VSC6* VBLK6 VCEN6

1B 03 0C 0D 00 2A

FAC 03

HPOS5 PARA5 TRAP5 HSIZE5 CNRT5 CNRB5 VEHT5 HEHT5

0C 10 29 13 0A 06 03 03

FAC 03

HPOS6* PARA6* TRAP6* HSIZE6* CNRT6* CNRB6* VEHT6 HEHT6

0F 1D 23 21 05 07 03 03

FAC 04

CNTX CNTN BRTX BRTN COLX COLN TNTX TNTN

7F 08 27 42 35 00 28 28

FAC 05

BRTC* COLC COLP SCOL SCNT CNTC TNTCT TNTCV

40 2C 00 07 05 67 40 40

FAC 06

ST3 SV3 SV4 SVD ASSH SHPN SHPN

20 20 19 19 07 10 2A

FAC 07

MOD1 MOD2 MOD3 OPT OPTM1 OPTM2 HDCNT HSTOP

20 B0 70 37 C0 00 00 FF

FAC 08

RFAGC* BRTS OSD OSDF CCD OSD CCD OSDF TXCN RGCN

25 00 21 53 4A 65 1F 16

FAC 09

V01 V25 V50 V100 VOLMAX CURTCEN GATE COL-OUT

46 5A 6D 76 32 A5 2A 73

FAC 10

MODE4 MODE5 MODE6 MODE7 MODE8 MODE9

32 0B 1F D7 2D 02

FAC 11

MPB-STR MPB-HMC MPB-HP MPB-LP MPB-LIM SUB-FRE SUB-HP VOL-MAI

43 0D 07 11 00 28 02 01

FAC 12

SVM SVM1 OSD2 OSDF2 PYNX PYNN PYXS PYNS

05 05 20 64 28 18 22 10

FAC 13

CLTM CLVO CLVS ABL DCBS FLG0 FLG1

4B 4B 4B 27 14 82 0D

FAC 14 FAC 15

HAFC AGCC NOIS ONTM NSHP PVLVL PLMT RC-C GC-C BC-C GD-C

09 1C 01 08 1A 80 80 00 FC FB 06

FAC 16 FAC 17

RC-W GC-W BC-W GD-W BD-W YUVGC YUVBC D-COL D-BRI D-CON D-SHP

00 02 07 F6 E3 03 03 20 34 62 64

FAC 18 FAC 19

S-COL S-BRI S-CON S-SHP M-COL M-BRI M-CON M-SHP

15 32 44 46 19 37 4B 50

FAC 20

SEG-PO INT1 SEG-POINT2 DATA-VL DATA-VH DATA-UF SPE-POS1 SPE-DATA1 SENSI-ON SENSI -OFF

173 407 01 02 08 06 05 00 00

FAC 21 FAC 22

T-Hz120 ­BAS

1C 5C 0C 0C 0C 39 54 0C 0C 0C

FAC 23 FAC 24

B-Hz120-BAS B-Hz500-TRE B-Hz1K5 B-Hz5K B-Hz10K COMB1 COMB2 COMB3 AV GAIN OPTM3

12 1C 0C 0C 0C 00 05 00 19 08

T-Hz500 ­TRE

T-Hz1K5 T-Hz5K T-Hz10K C-Hz120-

BAS

C-Hz500 ­TRE

C-Hz1K5 C-Hz1K C-Hz10K

BD-C

0E

EN 18 TC5.1L CA9.

Circuit Descriptions, Abbreviation List, and IC Data Sheets

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets

9.1 Brief Introduction of the Chassis

9.1.1 Chassis block diagram

9.1.2 Power Supply Section

This section mainly consists of

• IC STR-W6735 (IC801).

• Transformer (T803).

• Bridge rectifier (DB801).

• Accessory circuits.
The supply voltage for this chassis should be AC 110V. The
allowed voltage range is 90V to 140V, the frequency range is
50/60Hz.
The AC power with high/low frequency interference goes
through an RC filter, consisting of C801, T801, C802, R801,
and T802. The filter removes the high/low frequency
interference. Then DB801 transforms the AC power to DC
power. T803 and IC 801 work in standby state. T803 will
provide a power voltage to IC101. IC101 scans for the "KEY IN"
signal (Pin 3 of IC101) from the ON/OFF switch on the
keyboard. If "KEY IN" = "power on" signal, pin 64 (IC101) will
generate a signal to drive the photo coupler (IC8021). It acts as
a feed back circuit (feed back to Pin 6 of IC801) for controlling
IC801 to adjust MOSFET.
Transformer T803 provides the following voltages:

• +13V voltage from Pin16.

Figure 9-1 Chassis block diagram

• +130V (B+) voltage from Pin1.

• +12V from Pin 15.

• Pin 15 is also connected to two Positive Voltage

The picture below shows IC201 and IC202:

G_16340_010.eps

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Regulators (IC201, IC202) in-series. The outputs of these
regulators are +9V and +5V respectively.

G_16340_022.eps

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Figure 9-2 IC 201/202

Circuit Descriptions, Abbreviation List, and IC Data Sheets

6

9.1.3 Tuning Section

This section mainly consists of the tuner (TU101), the IF pre­amplifier circuit and the SAWFILTER.

Table 9-1 Tuning section 1

Pin Symbol Description

1 AGC Auto gain control

2 AS I2C bus address select

3 SCL I2C bus serial clock

4 SDA I2C bus serial data

5

6 BP Supply voltage tuner section +5V

7 BT Supply voltage tuning section +31V

8 IF Intermediate frequency out

Table 9-2 Short specification of the tuner

Receiving
Channel

Receiving
System

Intermediate
Frequency

Antenna Input
Impedance

Output Imped­ance

Band change­over system

VHF LOW BAND: CH2~B(55.25~127.25MHz)
VHF HIGH BAND: CH C~CH W+11(133.25~361.25MHz)
CH W+12~69(367.25~801.25MHz)

NTSC

Picture carrier: 47.74MHz
Colour carrier: 42.17MHz
Sound carrier: 41.25MHz

Unbalanced 75Ohms

Unbalanced 75Ohms

Digital change by PLL IC

G_16340_023.eps

10030

Figure 9-3 Pre-amplifier circuit

9.1.4 Sound Process Section

The SIF signal is sent out together with the TV signal from

Pin30 of IC101. It passes through Q203, R225. X202 and a

High-pass filter (consisting of C254, L206, C253) filters out the

video signal and low frequency interference.

G_16340_024.eps

100306

EN 19TC5.1L CA 9.

From Pin58 of IC101 the I2C bus clock signal goes to the tuner.
The tuner works during the clock time. IC101 will send out a
data signal from Pin57 to control the tuner's working state by
controlling the +33V voltage. +33V is provided from Pin10 of
T803. That voltage is put into the tuner at Pin7. A circuit inside
the tuner transforms +33V into a voltage between 0 and +33V
(as a function of the data, sent by IC101).
The AGC signal is a close loop control voltage that keeps the
amplitude of the signal constant.
Output of tuner is the Intermediate Frequency signal (IF signal).
The IF signal will pass pre-amplifier circuit (refer to the picture
below). The amplified IF signal passes the SAW filter and is
then sent to IC101 Pin41/42.
IC101 creates a CVBS signal and sends it out from Pin30.
CVBS will be selected by IC901, and then pass from Pin13 of
IC901 to Pin20/24 if IC101. IC101 will demodulate the CVBS
signal into an R, G, B signal. Next IC101 will send this R, G, B
signal from Pin50/51/52 to the CRT board.

Figure 9-4 Sound process section 1

SIF will be finally sent into Pin2 of IC1001. An analog automatic

gain control circuit (AGC) allows a wide range of input levels.

The analog-to-digital conversion of the IF sound signal is done

by an A/D-converter. The high pass filter, formed by a coupling

capacitor at SIF_IN1+ suppresses video components.

IC1001 is controlled via the I2C bus slave interface.

The AV sound signal will be directly sent to Pin37/38 or Pin40/

41 of IC1001. Q901/2 and Q903/4 form Emitter-Follower

circuits to provide a better load ability.

The (analog) sound signal will go from Pin26/27 of IC1001 to

Pin4/12 of IC602. IC602 is a dual bridge amplifier. The output

voltage of IC602 drives the speakers. The volume is adjusted

via the I2C bus.

G_16340_025.eps

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Figure 9-5 Sound process section 2

EN 20 TC5.1L CA9.

Circuit Descriptions, Abbreviation List, and IC Data Sheets

9.1.5 Vertical Output Section

This section mainly consists of IC301 (TDA8172), the Vertical
Coil and the related circuit. The supply voltage of IC301 are
+14V and -14V. These two voltages are provided by the LOT
section. For the vertical scan, IC101 creates a Saw-tooth
waveform at Pin16. This is the input signal of IC301. The main
task of IC101 is to create the vertical scan waveform. The
output signal of IC301 drives the Vertical Coil. If IC301 works in
normal state, Pin6 will send a square-signal to maintain a high
voltage at D214. If it does not, D214 will get a low voltage, Pin2
of IC101 senses this change and IC101 sends out a standby
signal.

9.1.6 Horizontal Output and LOT Section

The horizontal drive pulse is a square wave. IC101 creates this
waveform at Pin13. Via Q401 the signal goes to the input of
Q411. Q411 is a horizontal output triode with a damper inside.
The signal from Pin C of Q411 drives the Horizontal Coil.
When Q411 goes into cut-off state, a sub-coil inside the LOT
will generate an EHT by inductance.

9.2 IC description

9.2.1 Main IC (IC101)

Description:

The main IC is a TMPA8857CSNG, provided by TOSHIBA. It is
an integrated circuit, suited for PAL, NTSC and SECAM TV. An
MCU and a TV signal processor are integrated in a 64 pin DIP
package.
The MCU contains an 8-bit CPU, ROM, RAM, I/O-ports, timer/
counters, A/D-converters, an on-screen display controller,
remote control interfaces, IIC bus interfaces, and the closed
caption decoder.
The TV signal processor contains PIF, SIF, Video, multi­standard chroma, deflection, and RGB processors.

TV Processor

IF

• Integrated PIF VCO, aligned automatically

• Negative demodulation PIF

• Multi-frequency SIF demodulator, without external tank­coil

Video

• Integrated chroma traps

• Black stretch

• Y-gamma

Chroma

• Integrated chroma BPF’s

• PAL/NTSC/SECAM demodulation

RGB/Base-band

• Integrated 1 H base-band delay line

• Base-band TINT control

• Internal OSD interface

• Half-tone and transparent for OSD

• External YCbCr interface for DVD

• RGB cut-off/drive controls by bus

• ABCL (ABL and ACL combined)

Synchronization

• Integrated fH x 640 VCO

• DC coupled vertical ramp output (single)

• EW correction with EHT output

•Sync out

Features:

MCU:

• High speed 8-bit CPU

• 12 I/O ports

• I2C bus interface (multi-master)

• 14-bit PWM output, 1 channel, for a voltage synthesizer

• 7-bit PWM output, 1 channel

• 8-bit A/D converter, 3 channels

• Remote control signal preprocessor

• Two 16-bit internal timer/counters, 2 channels

• Two 8-bit internal timer/counters, 2 channels

• Time base timer

• Watchdog timer

• 16 interrupt sources: 5 external, 11 internal

• Stop and Idle power saving modes

CCD decoder

• Digital data slicer for NTSC

OSD

• Clock generation for OSD display

• Font ROM characters: 384 characters

• Characters display: 32 columns x 12 lines

• Composition: 16 x 18 dots

• Size of character: 3 (line by line)

• Color of character: 8 (character by character)

• Display position: H 256 / V 512 steps

• BOX function

• Fringing, smoothing, italic, underline function

• Conform to CCD regulation

• Jitter elimination

Circuit Descriptions, Abbreviation List, and IC Data Sheets

EN 21TC5.1L CA 9.

Figure 9-6 Block Diagram Main IC 1

G_16340_026.eps

100306

EN 22 TC5.1L CA9.

Circuit Descriptions, Abbreviation List, and IC Data Sheets

9.2.2 Vertical Deflection Booster (IC 301)

The STV8172A is a vertical deflection booster, designed for TV
and monitor applications.
This device, supplied with up to 35 V, provides a maximum
output current of 2.5 A, to drive the vertical deflection yoke.
The internal fly back generator delivers fallback voltages of up
to 75 V.

Figure 9-8 Vertical Deflection Booster

Figure 9-7 Block Diagram Main IC 2

G_16340_028.eps

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G_16340_027.eps

100306

Circuit Descriptions, Abbreviation List, and IC Data Sheets

EN 23TC5.1L CA 9.

9.2.3 Demultiplexer (IC 901)

The HCF4052B is a monolithic integrated circuit, fabricated in
Metal Oxide Semiconductor technology, available in DIP and
SOP packages.
The HCF4052B analog multiplexer/demultiplexer is a digitally
controlled analog switch, having low ON impedance, and very
low OFF leakage current. This multiplexer circuit dissipates
extremely low quiescent power over the full supply voltage
range, independent of the logic states of the control signals.
When a logic “1” is present at the inhibit input, all channels are
off. This device is a differential 4-channel multiplexer, having 2
binary control inputs, A and B, and an inhibit input. The two
binary input signals select 1 of 4 pairs of channels to be turned
on and connect the analog inputs to the outputs.

G_16340_029.eps

100306

Figure 9-9 Demultiplexer

Table 9-3 Demultiplexer

PIN Symbol

1 and 2 Y CHANNELS IN/OUT

3 COMMON "Y" OUT/IN

4 and 5 Y CHANNELS IN/OUT

6INH

7 VEE

8 VSS

9B

10 A

11 and 12 X CHANNELS IN/OUT

13 COMMON "X" OUT/IN

14 and 15 X CHANNELS IN/OUT

16 VDD

9.2.4 Sound Processor (IC1001)

Pin No. Pin Name Type Short Description

19 DVSUP Digital power supply +5

V

20 DVSS Digital ground

21 I2S_DA_IN2 I2S2 data input

22 RESETQ IN Power-on-reset

23 NC Not connected

24 NC Not connected

25 VREF2 Reference ground 2

High-voltage part

26 DACM_R OUT Loudspeaker out, right

27 DACM_L OUT Loudspeaker out, left

28 NC Not connected

29 VREF1 Reference Ground 1

High voltage part

30 SC1_OUT_R OUT Audio 1 output, right

31 SC1_OUT_L OUT Audio 1 output, left

32 NC Not connected

33 AHVSUP Analog power supply

8.0V

34 CAPL_M Volume capacitor MAIN

35 AHVSS Analog ground

36 AGNDC Analog reference voltage

High-voltage part

37 SC2_IN_L IN Audio 2 input, left

38 SC2_IN_R IN Audio 2 input, right

39 ASG Analog shield Ground

40 SC1_IN_L IN Audio 1 input, left

41 SC1_IN_R IN Audio 1 input, right

42 VREFTOP Reference voltage IF A/D

converter

43 MONO_IN IN Mono input

44 AVSS Analog ground

9.2.5 Dual Bridge Amplifier (IC 602)

The TDA7266SA is a dual bridge amplifier, specially designed
for LCD monitor, PC motherboard, TV, and portable radio
applications.

Table 9-4 Sound Processor

Pin No. Pin Name Type Short Description

1 AVSUP Analog power supply

+5V

2 ANA_IN+ IN IF Input 1

3 ANA_IN- IN IF common

4 TESTEN IN Test pin

5 XTAL_IN IN Crystal oscillator

6 XTAL_OUT OUT Crystal oscillator

7 TP Test pin

8 D_CTR_I/O_1 IN/OUT D_CTR_I/O_1

9 D_CTR_I/O_0 IN/OUT D_CTR_I/O_0

10 ADR_SEL IN I2C BUS address select

11 STANDBYQ IN Stand-by (Low-active)

12 I2C_CL IN/OUT I2C clock

13 I2C_DA IN/OUT I2C data

14 I2S_CL I2S clock

15 I2S_WS I2S word strobe

16 I2S_DA_OUT I2S data output

17 I2S_DA_IN1 I2S1 data input

18 ADR_CL ADR clock

G_16340_031.eps

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Figure 9-10 Dual Bridge Amplifier

EN 24 TC5.1L CA10.

10. Spare Parts List

Spare Parts List

G_16340_032.eps

Figure 10-1 Spare Parts

Table 10-1 Spare Parts List

ITEM NAME QTY. REMARK

1 Side AV PWB 1

2 S/T Screw W 3 X 10 AB 2 MGT Side AV PWB.

3 Speaker 2

4 Speaker Rubber Cushion 8

5 S/T Screw W 3 X 14 HS 4 MGT Speaker

6 Side AV Inlay 1

7 Plate Model NO. 1

8 S/T Screw F 3 X 10 BT 2 MGT Rear AV Jack

9 Rear AV Inlay 1

10 S/T Screw B 4 X 20 AB 8 MGT Rear and Front Cabinet

11 Rear Cabinet 1

12 Cushion (25mm X 7mm) 2

13 S/T Screw W 3 X 10 AB 3 MGT Main Board

14 Main Board 1

15 Main Board Bracket 1

16 CRT Screw HA 6 X 30 4 MGT CRT & Front Cabinet

17 Metal Cushion 4

18 CRT 1

19 Fibre Sheet 4

20 S/T Screw W 3 X 10 AB 6 MGT KEY Board & Front Cabinet

21 Key Board 1

22 S/T Screw W 3 X 10 AB 4 MGT Push Button

100306

Spare Parts List

ITEM NAME QTY. REMARK

23 Push Button 1

24 S/T Screw W 3 X 10 AB 1 MGT Lens

25 Lens 1

26 Decorative Piece for Power Knob 1

27 Power Knob 1

28 Power Spring 1

29 Logo 1

30 Front Cabinet 1

31 S/T Screw W 3 X 10 AB 4 MGT CRT Support

32 S/T Screw W 3 X 10 AB 4 MGT Guide Rail

33 Cushion (25mm X 7mm) 2

34 Power Line Block 1

35 Guide Rail (Left) 1

36 CRT Support 2

37 Guide Rail (Right) 1

EN 25TC5.1L CA 10.

EN 26 TC5.1L CA11.

11. Revision List

Manual xxxx xxx xxxx.0

• First release.

Revision List