Sampo 21T17 Service Manual

SAMPO

SERVICE MANUAL

21T17

1、 Caution………………………………………………………………………
2、 Specification…………………………………………………………………
3、 BOM list ……………………………………………………………………

4、 Alignment Procedure………………… … …………………………… …

5、 Block Diagram………………………………… …………………………
6、 Schematic Diagram……………………… ……… ………………………

7、 PCB Layout……………………………… …………………………………

8、 Explode V iew Diagram………………… …………………………………

9、Troubleshooting………………… …………………………………………

This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing, by
the constant improvement of product

1

5

8

18

27

28

29

30

31

WARNING: TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT

EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

CAUTION: TO REDUCE THE RISK OF
ELECTRICAL SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.

The lighting flash with arrowhead symbol, with an equilateral triangle is intended to
alert the user to the presence of uninsulated voltage within the products
enclosure that may be of sufficient magnitude to constitute a risk of electric shock to
the person.

The exclamation point within an equilateral triangle is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions in the
literature accompanying the appliance.

CAUTION:

Use of controls, adjustments or procedures other than those specified herein may result in
hazardous radiation exposure.

CAUTION

RISK RISK OF OF ELECTRIELECTRICC

SHOCK SHOCK DO DO NOT NOT OPEN.OPEN.

dangerous

2

3

FOR YOUR PERSONAL SAFETY

1. When the power cord or plug is damaged or frayed, unplug this television set from the wall outlet and refer servicing to
qualified service personnel.

2. Do not overload wall outlets and extension cords as this can result in fire or electric shock.

3. Do not allow anything to rest on or roll over the power cord, and do not place the TV where power cord is subject to
traffic or abuse. This may result in a shock or fire hazard.

4. Do not attempt to service this television set yourself as opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified service personnel.

5. Never push objects of any kind into this television set through cabinet slots as they may touch dangerous voltage
points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the television set.

6. If the television set has been dropped or the cabinet has been damaged, unplug this television set from the wall outlet
and refer servicing to qualified service personnel.

7. If liquid has been spilled into the television set, unplug this television set from the wall outlet and refer servicing to
qualified service personnel.

8. Do not subject your television set to impact of any kind. Be particularly careful not to damage the picture tube surface.

9. Unplug this television set from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.

10.1. Do not place this television set on an unstable cart, stand, or table. The television set may fall, causing serious injury
to a child or an adult, and serious damage to the appliance. Use only with a cart or stand recommended by the
manufacturer, or sold with the television set. Wall or shelf mounting should follow the manufacturer s instructions, and
should use a mounting kit approved by the manufacturer.

10.2. An appliance and car t combination should be moved with care. Quick stops, excessive force, and uneven surfaces
may cause the appliance and cart combination to overturn.

CAUTION:

Read all of these instructions. Save these instructions for later use. Follow all Warnings and
Instructions marked on the audio equipment.

1. Read Instructions- All the safety and operating instructions should be read before the product is operated.

2. Retain Instructions- The safety and operating instructions should be retained for future reference.

3. Heed Warnings- All warnings on the product and in the operating instructions should be adhered to.

4. Follow Instructions- All operating and use instructions should be followed.

IMPORTANT SAFETY INSTRUCTIONS

4

PROTECTION AND LOCATION OF YOUR SET

11. Do not use this television set near water ... for example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a

wet basement, or near a swimming pool, etc.

Never expose the set to rain or water. If the set has been exposed to rain or water, unplug the set from the wall

outlet and refer servicing to qualified service personnel.

12. Choose a place where light (artificial or sunlight) does not shine directly on the screen.

13. Avoid dusty places, since piling up of dust inside TV chassis may cause failure of the set when high humidity persists.

14. The set has slots, or openings in the cabinet for ventilation purposes, to provide reliable operation of the receiver, to

protect it from overheating. These openings must not be blocked or covered.

Never cover the slots or openings with cloth or other material.
Never block the bottom ventilation slots of the set by placing it on a bed, sofa, rug, etc.
Never place the set near or over a radiator or heat register.
Never place the set in enclosure, unless proper ventilation is provided.

PROTECTION AND LOCATION OF YOUR SET

15.1. If an outside antenna is connected to the television set, be sure the antenna system is grounded so as to provide some
protection against voltage surges and built up static charges, Section 810 of the National Electrical Code, NFPA No.
70-1975, provides information with respect to proper grounding of the mast and supporting structure, grounding of the
lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection
to grounding electrode, and requirements for the grounding electrode.

15.2. Note to CATV system installer : (Only for the television set with CATV reception)

This reminder is provided to call the CATV system attention to Article 820-40 of the NEC that provides
guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding
system of the building, as close to the point of cable entry as practical.

16. An outside antenna system should not be located in the vicinity of overhead power lines or other electric lights or power
circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care
should be taken to keep from touching such power lines or circuits as contact with them might be fatal.

17. For added protection for this television set during a lightning storm, or when it is left unattended and unused for long
periods of time, unplug it from the wall outlet and disconnect the antenna. This will prevent damage due to lightning
and power-line surges.

ANTENNA
LEAD- IN WIRE

ANTENNA DISCHARGE
UNIT (NEC SECTION
810-20)

GROUNDING
CONDUCTORS
(NEC SECTION810-21)

GROUND CLAMPS

POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250. PART H)

ELECTRIC SERVICE

EQUIPMENT

GROUND CLAMP

NEC-NATIONAL ELECTRICAL CODE

EXAMPLE OF ANTENNA GROUNDING AS PER

NATIONAL ELECTRICAL CODE

EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS

a built-in

installer s

OPERATION OF YOUR SET

18.

This television set should be operated only from the type of power source indicated on the marking label. If you are not
sure of the type of power supply at your home, consult your television dealer or local power company. For television
sets designed to operate from battery power, refer to the operating instructions.

19. If the television set does not operate normally by following the operating instructions, unplug this television set from the
wall outlet and refer servicing to qualified service personnel. Adjust only those controls that are covered in the operating
instructions as improper adjustment of other controls may result in damage and will often require extensive work by a
qualified technician to restore the television set to normal operation.

20. When going on a holiday : If your television set is to remain unused for a period of time, for instance, when you go on
a holiday, turn the television set and unplug the television set from the wall outlet.

IF THE SET DOES NOT OPERATE PROPERLY

21. If you are unable to restore normal operation by following the detailed procedure in your operating instructions,
do not attempt any further adjustment. Unplug the set and call your dealer or service technician.

22. Whenever the television set is damaged or fails, or a distinct change in performance indicates a need for
service, unplug the set and have it checked by a professional service technician.

23. It is normal for some TV sets to make occasional snapping or popping sounds, particularly when being
turned on or off. If the snapping or popping is continuous or frequent, unplug the set and consult your
dealer or service technician.

FOR SERVICE AND MODIFICATION

24. Do not use attachments not recommended by the television set manufacturer as they may cause hazards.

25. When replacement parts are required, be sure the service technician has used replacement parts specified
by the manufacturer that have the same characteristics as the original part. Unauthorized substitutions
may result in fire, electric shock, or other hazards.

26. Upon completion of any service or repairs to the television set, ask the service technician to perform
routine safety checks to determine that the television is in safe operating condition.

5

off

14" 21"

√√
√√

PAL
NTSC

PAL
NTSC

Channels

AC 90-240V, 50/60Hz
AC 110V, 50/60Hz
<1W
<3W
<4W

14"-16" 21"

√

√

Tuner

AV Stereo
AV Mono
AV1 and AV2 Separate
BTSC
Treble
Bass
Balance
Auto Volume Level
Surround
Sound Effects

√

Game

Auto standby if no signal in 15mins.

√

Sleep Timer (10-120min)

√

Calendar

√☆

Biological Clock

√☆

On / Off Timer

Language

1. English/Portuguese/French/Spanish

S-Video (Rear or Side)

1★

Side/Frond RCA x *<Input>

1

√★

Terminal

Rear RCA x * <Input/output>

1

Rear YUV x*

1★

Sound

n=1

√★
√★

√★

binding

√★
√★
√★

√★
√★
√

Noise Reduction

√

Blue Strech

Picture

Black Strech

√

Comb-f for NTSC(1H)

√(built-in MCU)

Color Temperature

√☆

FS Tuner

√

1.5W MONO

√★

3W+3W

1.5W+1.5W

1W+1W

n=1

2W+2W

1W MONO

Audio output

Standby

n=1

√

√(N)

Power Supply

n=1

√(P/N)

181 programs

√

√★

System (AV)

n=1

√★

N

√

Sound System
(TV)

M

√

√★

Color System
(TV)

n=1

√★

Remote Controller

F, Q, R、RC111、RC65

Situation on matching CRT

Slim CRT
Normal Flat
Pure Flat

Certification UL. FCC.FDA

Chassis M123A P/N: TMPA8823 N: TMPA8852

Remark:

2.Features in grey mean they are not available now .

Child Lock

√

Smart Timer

1. Optional features are marked with ★. Red ★ means it will make cost up or down, Blue☆ means it is build-in TV, no additional
cost up or down.

Hotel Mode

√☆ (Only in English)
[No Tuning Menu/ Max.Volume Lock

X-ray Protection

√

√

V-chip

√☆(Disable in 2nd Software Version)

CCD

√☆(Disable in 2nd Software Version)

Recall

√

Channel Add/Erase

√

Blue Background

√

Program prearrange

√

Favorite channel Setting

√

Notebook

√☆

Features

Item No. Description Qty.
T8-DT17AG-MA1SM ASS'Y - SKD PARTS`TW' 1
T8-21T17G-AVY ASS'Y - AV BD 1
40-21T18H-SIB1X P.C.B. SIDE AV BD 1
46-35146H-05X HS 5P24 550 TJC3-5Y/SCN-5Y 1 P1104B P1 - P5 FOR M. BD P904
47-RCA020-XX1 RCA SOCKET Y/W/R 1 P1101
T8-21T18G-IRY ASS'Y - RECEIVE BD 1
02-IRR002-XX1 IR RECEIVER MODULE HS0038B 1 IR1001A
18-CB0271-JNX RES. C.F. 270 OHM 1/6W +/-5% 1 R011A
18-CB0470-JNX RES. C.F. 47 OHM 1/6W +/-5% 1 R01B
25-BCB220-M1X CAP. ELEC 22 UF 16V +/-20% 1 C01B
40-21T18H-IRE1X P.C.B. IR RECEIVE BD 1
41-WJ0065-B00 WIRE BARE JUMPER 6.5MM 1 J002
46-31531H-04X HS 4P24 F/W 300 TJC3/JC25-4Y 1 P002A FOR M.BD P005
46-37170H-02X HS 2P 2468#24 260 TJC3-2Y/JC25-2Y 1 D001 FOR PWR SW. BD S803
T8-21T18G-KEY ASS'Y - KEY BD 1
18-CB0152-JNX RES. C.F. 1.5K OHM 1/6W +/-5% 1 R026A
18-CB0182-JNX RES. C.F. 1.8K OHM 1/6W +/-5% 1 R027A
18-CB0272-JNX RES. C.F. 2.7K OHM 1/6W +/-5% 1 R024A
18-CB0432-JNX RES. C.F. 4.3K OHM 1/6W +/-5% 1 R023A
18-CB0682-JNX RES. C.F. 6.8K OHM 1/6W +/-5% 1 R022A
40-21T18H-KED1X P.C.B. KEY BD 1
46-CE040T-02J HS 2P 2468#24 400MM TJC3-2Y 1 P001B P1 - P2 FOR M. BD P006

48-TAC001-XX0 TACT SWITCH 6

T8-21T18G-SW1 ASS'Y - SWITCH BD 1
40-21T18H-SWC1X P.C.B SWITCH BD 1
46-33079W-02X PIN BASE *2 TJC3-2A 1 S803 FOR IR BD D001
46-33079W-04X PIN BASE *4 TJC3-4A 1 S804 FOR 57-BT18LS-0HC
46-35063W-03X PIN BASE *3 VH-3A 2 P804 FOR POWER CORD;P804A
46-39318H-02X HS 2P 1617#22 300 TJC-1-26/VH-3Y 1 FOR PWR SW.BD(P804A) & PWR PARTS
48-POW001-AX0 SWITCH POWER 1 SW801
51-DC0243-0DN08 POWER CORD CEE 1
62-262660-0HN POWER SW.ADAPTER 1
66-382330-0B7 RIVET 2.0X3.7X3.5 4 FOR P804, P804A
T8-DT17AG-MA1HM ASS'Y - SKD FOR M. BD`TW' 1
T8-0A21SG-MAY ASS'Y - MAIN BD 1
10-0FR104-FBX DIODE FR104 (FAST RECTIFIER) 4 D401;D402;D403;D404
10-1N4001-EBX DIODE 1N4001 (RECTIFIER) 1 D301
10-1N4002-EBX DIODE 1N4002 (RECTIFIER) 1 D405

10-1N4148-ABX DIODE 1N4148 (SWITCHING) 12

10-79C3V9-DBX DIODE ZENER 3V9 1/2W 5% 1 D304
10-79C5V1-DBX DIODE ZENER 5V1 1/2W 5% 1 D001
10-79C8V2-DBX DIODE ZENER 8V2 1/2W 5% 1 D406
11-A124ES-0BX TRANSISTOR PDTA124ES (PNP) 1 Q005
11-C124ES-0BX TRANSISTOR PDTC124ES (NPN) 4 Q001;Q004;Q212;Q604
11-C144ES-0BX TRANSISTOR PDTC144ES (NPN) 1 Q211
11-DD1555-0AX TRANSISTOR 3DD1555 1 Q402
11-SA1015-YBX TRANSISTOR ST2SA1015Y (PNP) 4 Q003;Q202;Q210;Q605
11-SC1815-YBX TRANSISTOR 2SC1815-Y (NPN) 5 Q002;Q203;Q208;Q209;Q905
11-SC2482-0BX TRANSISTOR 2SC2482 1 Q401
11-SC3779-DBX TRANSISTOR 2SC3779D (RF AMPL) 1 Q101

Position

S001A;S002A;S003A;S004A;S005A;S006A

D005;D006;D007;D008;D009;D206;D302;D303
;D305;D307;D601;D602

8

13-00M24C-08P IC EEPROM 8K M24C08 (WRITE) 1 IC001
13-STV930-2BS IC STV9302B 1 IC301
13-0L7805-CVS +5V 1.5A IC L7805CV 1 IC402
13-0L7809-CVS IC L7809 SGS (TO-220) 1 IC401
13-TDA705-7AS IC TDA7057AQ (2X8W) 1 IC601
18-CB0100-JNX RES. C.F. 10 OHM 1/6W +/-5% 1 J217
18-CB0101-JNX RES. C.F. 100 OHM 1/6W +/-5% 3 R009;R218;R228

18-CB0102-JNX RES. C.F. 1K OHM 1/6W +/-5% 11

18-CB0103-JNX RES. C.F. 10K OHM 1/6W +/-5% 9

18-CB0104-JNX RES. C.F. 100K OHM 1/6W +/-5% 2 R031;R232
18-CB0121-JNX RES. C.F. 120 OHM 1/6W +/-5% 1 R227
18-CB0122-JNX RES. C.F. 1.2K OHM 1/6W +/-5% 1 R007
18-CB0123-JNX RES. C.F. 12K OHM 1/6W +/-5% 1 R212
18-CB0151-JNX RES. C.F. 150 OHM 1/6W +/-5% 2 R115;R117
18-CB0153-JNX RES. C.F. 15K OHM 1/6W +/-5% 1 R315
18-CB0220-JNX RES. C.F. 22 OHM 1/6W +/-5% 2 R001;R005
18-CB0221-JNX RES. C.F. 220 OHM 1/6W +/-5% 6 R201;R202;R203;R220;R238;R401
18-CB0222-JNX RES. C.F. 2.2K OHM 1/6W +/-5% 2 R044;R055
18-CB0223-JNX RES. C.F. 22K OHM 1/6W +/-5% 3 R215;R912;R913
18-CB0224-JNX RES. C.F. 220K OHM 1/6W +/-5% 1 R206
18-CB0271-JNX RES. C.F. 270 OHM 1/6W +/-5% 2 R217;R233
18-CB0303-JNX RES. C.F. 30K OHM 1/6W +/-5% 1 R205
18-CB0331-JNX RES. C.F. 330 OHM 1/6W +/-5% 1 R219
18-CB0332-JNX RES. C.F. 3.3K OHM 1/6W +/-5% 2 R046;R218A
18-CB0333-JNX RES. C.F. 33K OHM 1/6W +/-5% 1 R602
18-CB0392-JNX RES. C.F. 3.9K OHM 1/6W +/-5% 2 R213;R214
18-CB0470-JNX RES. C.F. 47 OHM 1/6W +/-5% 1 R002
18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 2 R119;R208
18-CB0472-JNX CARBON RES. C.F. 4.7K OHM 1/6W +/-5% 4 R003;R004;R015;R311
18-CB0473-JNX RES. C.F. 47K OHM 1/6W +/-5% 2 R216;R245
18-CB0560-JNX RES. C.F. 56 OHM 1/6W +/-5% 1 R114
18-CB0561-JNX RES. C.F. 560 OHM 1/6W +/-5% 1 R209
18-CB0564-JNX RES. C.F. 560K OHM 1/6W +/-5% 1 R210
18-CB0681-JNX RES. C.F. 680 OHM 1/6W +/-5% 1 R028
18-CB0683-JNX RES. C.F. 68K OHM 1/6W +/-5% 1 R211
18-CB0751-JNX RES. C.F. 750 OHM 1/6W +/-5% 1 R008
18-CB0820-JNX RES. C.F. 82 OHM 1/6W +/-5% 2 R903;R923
18-CB0821-JNX RES. C.F. 820 OHM 1/6W +/-5% 1 R118
18-CB0822-JNX RES. C.F. 8.2K OHM 1/6W +/-5% 2 R237;R606
18-CD0100-JNX RES. C.F. 10 OHM 1/4W +/-5% 1 R027
18-CD0101-JNX RES. C.F. 100 OHM 1/4W +/-5% 1 R621
18-DB0103-FNX RES. M.F. 10K OHM 1/6W +/-1% 1 R302
18-DB0104-FNX RES. M.F. 100K OHM 1/6W +/-1% 1 R303
18-DB0153-FNX RES. M.F. 15K 1/6W +/-1% 1 R244
18-DB0223-FNX RES. M.F. 1/6W 22K OHM +/-1% 1 R306
18-EF0109-JGX RES. FUS. 1 OHM 1W +/-5% (LS) 4 R403;R405;R409;R418
18-FF0102-JGX RES. M.O. 1K OHM 1W +/-5% 1 R408
18-FF0103-JGX RES. M.O. 10K OHM 1W +/-5% 1 R410
18-FF0123-JGX RES. M.O. 12K OHM 1W +/-5% 1 R406
18-FF0129-JGX RES. M.O. 1.2 OHM 1W +/-5% 1 R304
18-FF0221-JGX RES. M.O. 220 OHM 1W +/-5% 1 R336

J305;R006;R011;R012;R030;R043;R047;R050
;R052

R013;R029;R051;R116;R234;R415;R901;R902
;R920;R922;R924

18-FG0153-JHX RES. M.O. 15K OHM 2W +/-5% 1 R404
18-GJ0332-JUX1 RES.C.C.5W 3.3KOHM +/-5% 1 R402
18-RG0228-JHX RES. WIRE ROUND 0.22 OHM 2W +/-5% 1 R620
25-BCA102-M1X CAP. ELEC 1000 UF 16V +/-20% 1 C232
25-BCB100-M1X CAP. ELEC 10 UF 16V +/-20% 8 C004;C023;C025;C311;C603;C901;C902;C907
25-RCB100-M1X CAP.ELEC 10 UF 16V +/-20% 3 C220;C227;C231
25-BCB101-M1X CAP. ELEC 100 UF 16V +/-20% 7 C016;C101;C211;C240;C605;C900;C903
25-BCB221-M1X CAP. ELEC 220 UF 16V +/-20% 2 C418;C906
25-BCB470-M1X CAP. ELEC 47 UF 16V +/-20% 3 C082;C202;C423
25-BDA471-M1X CAP. ELEC 470 UF 25V +/-20% 3 C217;C415;C604
25-BDB221-M1X CAP. ELEC 220UF 25V +/-20% 1 C301
25-BEA102-M1X CAP. ELEC 1000 UF 35V +/-20% 1 C413
25-BEB101-M1X CAP. ELEC 100 UF 35V +/-20% 1 C302
25-BFB109-M1X CAP. ELEC 1 UF 50V +/-20% 6 C008A;C203;C208;C214;C915;C916
25-BFB478-M1X CAP. ELEC 0.47 UF 50V +/-20% 1 C218
25-RFB479-M1X CAP.ELEC 4.7 UF 50V +/-20% 4 C104;C216;C304;C310
25-BHB100-M1X CAP. ELEC 10 UF 100V +/-20% 1 C420
25-PJA470-M1X CAP.CELE 47UF/160V/+/-20% 1 C411
25-BLA100-M1X CAP. ELEC 10 UF 250V +/-20% 1 C408
25-MFB228-K1X CAP.ELEC 0.22UF 50V +/-10% 1 C205
25-MFB478-K1X CAP.ELEC 50V 0.47UF +/-10% 2 C234;C236
26-AIC102-KBX CAP. CER 1000 PF 500V +/-10% B 2 C401;C404
26-AIC391-KBX CAP. CER 390 PF 500V +/-10% B 1 C409
26-EBP101-JCS CAP. CER 100 PF 50V +/-5% 2 C001;C002
26-EBP102-KBS CAP. CER 1000 PF 50V +/-20% 2 C112;C219

26-EBP103-ZFX CAP. CER 0.01UF 50V +80/-20% F 20

26-EBP152-KBS CAP. CER 1500PF 50V +/-10% 1 C209
26-EBP181-JCS CAP. CER 180 PF 50V +/-5% 1 C207
26-EBP222-KBS CAP. CER 2.2 NF 50V +/-10% 1 C014
26-EBP270-JCS CAP. CER 27 PF 50V +/-5% 1 C011
26-EBP272-KBS CAP. CER 2700PF 50V +/-10% 1 C210
26-EBP331-JCS CAP. CER 330PF 50V +/-5% 1 C018
26-EBP390-JCS CAP. CER 39PF 50V +/-5% 2 C021;C022
26-EBP391-JCS CAP. CER 390PF 50V +/-5% 2 C403;C412
26-EBP470-JZX CAP. CER 47PF 50V +/-5% SL 1 C424
27-AGQ563-J0X CAP. M.PP 0.056 UF 250V +/-5% 1 C410
27-MBC103-J0X CAP. M.P.E 0.01UF 63V+/-5% 1 C215
27-MBC104-J0X CAP. M.P.E 0.1 UF 63V +/-5% 4 C242;C309;C610;C909
27-MBC224-J0X CAP. M.P.E 0.22UF 63V +/-5% 1 C305
27-MBC474-J0X CAP. M.P.E 0.47UF 63V +/-5% 2 C601;C602
27-PBC222-J0X CAP. P.E 0.0022UF 63V +/-5% 2 C204;C213
27-PBC472-J0X CAP. P.E 0.0047UF 63V +/-5% 3 C422;C607;C608
27-PBC822-J0X CAP. P.E 0.0082UF 63V +/-5% 1 C235
27-RCP333-J0X CAP. PP 0.033 UF 100V +/-5% 1 C405
34-A109K0-1IX COIL CHOKE 1 UH +/-10% 2 L102;L103
34-A220K0-1IX COIL PL - 22UH +/-10% LGA0305-220K 1 L201
34-R100J2-0EX COIL PL - 10 UH +/-5% 1 L002
34-R220J2-0EX COIL PL - 22 UH +/-5% 2 L207;L208
34-R330J2-0EX COIL PL - 33 UH +/-5% 2 L080;L202
34-R829J2-0EX COIL PL - 8.2 UH +/-5% 1 L204

C005;C017;C019;C020;C024;C081;C102;C105
;C110;C114;C201;C212;C221;C228;C230;C23
3;C239;C241;C417;C425

36-HDR001-AX1 TRANSFOR HOR. DRIVE (MAGNETIC CORE) 1 T401
41-WJ0050-B00 WIRE BARE JUMPER 5MM 1 L101
41-WJ0055-B00 WIRE BARE JUMPER 5.5 MM 1 J922

41-WJ0060-B00 WIRE BARE JUMPER 6MM 11

41-WJ0065-B00 WIRE BARE JUMPER 6.5MM 3 J010;J208;J301
41-WJ0070-B00 WIRE BARE JUMPER 7MM 4 J011;J012;J217A;J223

41-WJ0075-B00 WIRE BARE JUMPER 7.5MM 10

41-WJ0080-B00 WIRE BARE JUMPER 8 MM 3 J108;J903;J919
41-WJ0085-B00 WIRE BARE JUMPER 8.5MM 7 J205;J206;J209;J219;J302;J306;J920
41-WJ0090-B00 WIRE BARE JUMPER 9MM 2 J212;J904
41-WJ0095-B00 WIRE BARE JUMPER 9.5MM 4 J229;J230;J231;J601

41-WJ0100-B00 WIRE BARE JUMPER 10MM 12

41-WJ0105-B00 WIRE BARE JUMPER 10.5MM 2 J304;R406A
41-WJ0110-B00 WIRE BARE JUMPER 11MM 2 J016;J226
41-WJ0115-B00 WIRE BARE JUMPER 11.5MM 1 J604
41-WJ0125-B00 WIRE BARE JUMPER 12.5MM 3 J106;J216;R317
41-WJ0130-B00 WIRE BARE JUMPER 13MM 2 J006;J204
41-WJ0135-B00 WIRE BARE JUMPER 13.5MM 1 J014
41-WJ0140-B00 WIRE BARE JUMPER 14MM 1 J005
41-WJ0150-B00 WIRE BARE JUMPER 15MM 1 L402
41-WJ0160-B00 WIRE BARE JUMPER 16MM 1 J105
41-WJ0165-B00 WIRE BARE JUMPER 16.5MM 2 J013;J220
41-WJ0170-B00 WIRE BARE JUMPER 17MM 1 J401
41-WJ0175-B00 WIRE BARE JUMPER 17.5MM 1 R045
41-WJ0195-B00 WIRE BARE JUMPER 19.5MM 1 J003A
41-WJ0200-B00 WIRE BARE JUMPER 20MM 1 J233
45-OSC8M0-0Y0 CRYSTAL 8.0MHZ 1 X001
45-TRA4M5-0Y0 CER TRAP TPS 4.5MHZ 1 X201
46-12866W-02X PIN BASE *2 S11-02Y 1 P601 FOR FRONT CAB.(SPK)
46-20598W-04X PIN BASE *4 TJC1-4A 1 P401 FOR DY CONNECTER
46-33079W-02X PIN BASE *2 TJC3-2A 1 P602 FOR FRONT CAB.(SPK)
46-33079W-03X PIN BASE *3 TJC3-3A 1 P001
46-33079W-05X PIN BASE *5 TJC3-5A 1 P201 FOR CRT BD
46-35179W-04X PIN BASE TJC3-4A 1 P402 FOR CRT BD P502
57-10654X-00F TWIST TIE NY66 3
62-227680-0UA BRACKET ABS-KINGFA 606 (UO) 1
64-P30060-104 M/C SCREW P 3 X 6 2 FOR IC401 & IC402
64-B30100-104 M/C SCREW B 3 X 10 2 FOR IC601
64-P30100-104 M/C SCREW P 3 X 10 2 FOR Q402 & IC301
65-Z30050-23M NUT M 3 2 FOR Q402 & IC301

66-343730-0B0 HOLLOW RIVET 1.6MMX3.0MMX3.2MM 20

66-343740-0B0 HOLLOW RIVET (2.3MMX4.0MMX3.5MM) 2 FOR R402
67-H24249-2M2 HEAT SINK 1 FOR IC402
67-H24249-3M2 HEAT SINK 1 FOR IC401
67-H30752-3A0 HEAT SINK 2 FOR IC301 & Q402
67-H34423-EA0 HEAT SINK 1 FOR IC601

10-79C6V2-DBX DIODE ZENER 6V2 1/2W 5% 2

J002;J002A;J003;J017;J102;J110;J111;J22
1;J402;J910;J911;J917

FOR L411;FOR L412;FOR Q402;FOR
C421,C406B;FOR T402

D207;FOR (-)& P43/IC201 TO (+)接IC201底
部地端

J001;J009A;J101;J203;J210;J211;J907;R20
0;R204;R207;R249

J018;J022;J215;J218;J225;J303;J602;J901
;J913;J914

10-79C10V-DBX DIODE ZENER 10V 1/2W 5% 2

10-CW574C-DJX DIODE CW574CD 1 FOR C106 (DIODE“+” TO GND)
25-BFB220-M1X CAP. ELEC 22 UF 50V +/-20% 1 FOR D101 (CAPACITOR“-” TO GND)
T8-0A21SG-PW2 ASS'Y - POWER BD 1
10-00RU3C-FBX HIGH EFFICIENCY RECTIFIER RU3C 1 D831
10-0FR104-FBX DIODE FR104 (FAST RECTIFIER) 2 D833;D802
10-0RL255-EBX DIODE RL255 OR RL206(POWER RECTIFIER) 4 D815;D816;D817;D818
10-0RU3YX-FBX DIODE RU3YX 1 D830
10-1N4148-ABX DIODE 1N4148 (SWITCHING) 1 D805
10-1SS136-ABX DIODE 1SS136 2 D804;D835
10-79C8V2-DBX DIODE ZENER 8V2 1/2W 5% 1 D839
10-HER108-FBX DIODE HER108 1 D806
10-HS16VC-DBX DIODE 500MW 16HSC 1 D838
10-HS6V2B-DBX DIODE 6V2 500MW 1 D840
11-SC1815-YBX TRANSISTOR 2SC1815-Y (NPN) 2 Q832;Q831
11-SC2688-LAX TRANSISTOR 2SC2688L (NPN) 1 Q830
11-SK2996-0AX TRANSISTOR 2SK2996 (MOS) 1 Q801
13-0HPC92-2CP PHOTO COUPLER HPC922-C 1 IC802
13-44608P-40P IC MC44608P40G 1 IC801
18-CB0102-JNX RES. C.F. 1K OHM 1/6W +/-5% 1 R809
18-CB0183-JNX RES. C.F. 18K OHM 1/6W +/-5% 2 R838;R844
18-CB0332-JNX RES. C.F. 3.3K OHM 1/6W +/-5% 1 R834
18-CB0392-JNX RES. C.F. 3.9K OHM 1/6W +/-5% 1 R807
18-CB0472-JNX CARBON RES. C.F. 4.7K OHM 1/6W +/-5% 1 R806
18-CB0682-JNX RES. C.F. 6.8K OHM 1/6W +/-5% 1 R850
18-CD0220-JNX RES. C.F. 22 OHM 1/4W +/-5% 1 R811A
18-CD0221-JNX RES. C.F. 220 OHM 1/4W +/-5% 1 R833
18-CD0392-JNX RES. C.F. 3.9K OHM 1/4W +/-5% 1 R835
18-CD0471-JNX RES. C.F. 470 OHM 1/4W +/-5% 1 R811
18-CE0479-JNX RES. C.F. 4.7 OHM 1/2W +/-5% 1 R832
18-DD0104-FNX RES. M.F 100K OHM 1/4W +/-1% 1 R804
18-DD0912-FNX RES. M.F. 9.1K OHM 1/4W +/-1% 1 R804A
18-FG0333-JHX RES. M.O. 33K OHM 2W +/-5% 1 R837
18-GJ0103-KUX1 RES.C.C.5W 10KOHM +/-10% 1 R836
18-GJ0223-KUX1 RES.C.C.5W 22KOHM +/-10 1 R808
18-KE0105-JN3 RES. H.VOLT. CC 1M OHM 1/2W +/-5% 1 R802
18-KF0825-JH3 RES. H.VOLT.CC 8.2M OHM 1W +/-5% 1 R812
18-RG0228-JHX RES. WIRE ROUND 0.22 OHM 2W +/-5% 1 R810
20-TR103H-5CX TRIMMER B10K HORIZ TYPE 1 VR830
22-NTC479-XX0 NTC 4.7 OHM +/-18% NTC4.7D2-14 1 RT802
22-PTC200-XX1 PTC 20 OHM +/-20% 1 RT801
25-BDA222-M1S CAP. ELEC 25V/2200UF/+/-20% 1 C832
25-BCA102-M1X CAP. ELEC 1000 UF 16V +/-20% 1 C849
25-BDA102-M1X CAP. ELEC 1000 UF 25V +/-20% 1 C843
25-BDB220-M1X CAP. ELEC 22 UF 25V +/-20% 1 C845
25-BFB479-M1X CAP. ELEC 4.7 UF 50V +/-20% 1 C812
25-PJG101-M1X CAP.CELE 100UF/160V/+/-20% 1 C835
25-BKJ331-M1X CAP. ELEC 330 UF 200V +/-20% 1 C806
26-ABC101-JZX CAP. CER 100 PF 50V +/-5% SL 1 C814
26-ABC104-ZFX CAP. CER 0.1 UF 50V +80-20% F 3 C813;C831;C842
26-ABC221-JZX CAP. CER 220 PF 50V +/-5% SL 1 C841

FOR (-)& P28/IC201 TO (+)接IC201底部地
端;FOR (-)& P29/IC201 TO (+)接IC201底部
地端

26-ABC471-JZX CAP. CER 470 PF 50V +/-5% SL 1 C851
26-AGA221-KRX CAP.CER 220PF 250V +/-10% 1 C830
26-AIL103-KBX CAP.CER 10NF 500V +/-10% 2 C834;C805
26-AKM221-KRX CAP. CER 220 PF 1KV +/-10% 1 C833
26-AMM102-KRX CAP. CER 1000 PF 2KV +/-10% R 1 C815
26-APK222-ME4 CAP. CER 2200PF 400VAC+/-20% E 1 C816
26-APK471-KBX CAP. CER 470PF 400VAC +/-10% B 2 C803;C804
26-AQK472-ZFX CAP. CER 4700PF 250VAC +80% -20% F 2 C807;C808
26-EBP102-KBS CAP. CER 1000 PF 50V +/-20% 2 C804A;C848
26-EBP103-ZFX CAP. CER 0.01UF 50V +80/-20% F 1 C844
27-AQT474-MVX CAP. M.PP 0.47 UF 250V +/-20% 1 C801
27-MBC104-J0X CAP. M.P.E 0.1 UF 63V +/-5% 2 SOLDER ON R838;C850
27-RJP472-J0X CAP. PP 0.0047 UF 630V +/-5% 1 C809
34-R100K2-1BX COIL CHOKE 10 UH +/-10% 1 L843
34-R101K2-1BX COIL CHOKE 100 UH +/-10% 1 L804
35-139730-00X FERR. BEAD BF60 8 FOR D833;FOR D831;FOR D830;FOR D806
36-LIF005-AX0 LINE FILTER 1 T801
36-TRF110-XX0 TRANSFORMER 1 T803
41-WJ0050-B00 WIRE BARE JUMPER 5MM 3 R820;R821;R822
41-WJ0075-B00 WIRE BARE JUMPER 7.5MM 3 J809;D838A;J821
41-WJ0085-B00 WIRE BARE JUMPER 8.5MM 1 J812
41-WJ0090-B00 WIRE BARE JUMPER 9MM 1 J805
41-WJ0100-B00 WIRE BARE JUMPER 10MM 3 J820;J822;R807A
18-CD0100-JNX RES. C.F. 10 OHM 1/4W +/-5% 1 R851
41-WJ0105-B00 WIRE BARE JUMPER 10.5MM 1 J824
41-WJ0115-B00 WIRE BARE JUMPER 11.5MM 1 J832
41-WJ0120-B00 WIRE BARE JUMPER 12MM 1 J823
41-WJ0125-B00 WIRE BARE JUMPER 12.5MM 1 J804
41-WJ0135-B00 WIRE BARE JUMPER 13.5MM 1 J833
41-WJ0150-B00 WIRE BARE JUMPER 15MM 2 J826;J802
41-WJ0160-B00 WIRE BARE JUMPER 16MM 1 J825
41-WJ0165-B00 WIRE BARE JUMPER 16.5MM 1 J831
41-WJ0175-B00 WIRE BARE JUMPER 17.5MM 1 J807
41-WJ0190-B00 WIRE BARE JUMPER 19MM 1 J811
41-WJ0195-B00 WIRE BARE JUMPER 19.5MM 2 J828;J829
41-WJ0200-B00 WIRE BARE JUMPER 20MM 1 J830
46-10962W-02X PIN BASE *2 TJC2-2A 1 P801
64-B30100-104 M/C SCREW B 3 X 10 1 FOR Q801
66-20516X-0B0 FUSE HOLDER 2 FOR FUSE

66-343730-0B0 HOLLOW RIVET 1.6MMX3.0MMX3.2MM 21

66-343740-0B0 HOLLOW RIVET (2.3MMX4.0MMX3.5MM) 8 FOR R808,R836,C806,P801
67-H35984-5A0 HEAT SINK 1 FOR Q801
71-DYP000-WX1 LABEL 1 STICK ON HEAT SINK
T8-DT17AG-OT1 ASS'Y - PARTS M.BD 'TW' 1
07-457FF5-NX8G TUNER TEDH9-251B 1 TU101
11-C124ES-0BX TRANSISTOR PDTC124ES (NPN) 3 Q006;Q902;Q904
11-SC1815-YBX TRANSISTOR 2SC1815-Y (NPN) 3 Q602;Q603;Q609
13-000040-53P IC 4053 (ANALOG SW) 1 IC901
13-000040-66P IC HFE4066BP 1 IC902
13-T7M123-03M01 MCU TMPA8823CRNG 1 IC201

18-CB0102-JNX RES. C.F. 1K OHM 1/6W +/-5% 9

FOR T803;FOR RT801;FOR
C835,C801,L804,D831,D830;FOR T801

R612A;R613A;R637;R911;R925;R927;R928;R9
30;R931

18-CB0103-JNX RES. C.F. 10K OHM 1/6W +/-5% 3 R917;R010;R919
18-CB0223-JNX RES. C.F. 22K OHM 1/6W +/-5% 6 R613;R612;R907;R908;R909;R910
18-CB0820-JNX RES. C.F. 82 OHM 1/6W +/-5% 1 R929
18-CE0479-JNX RES. C.F. 4.7 OHM 1/2W +/-5% 1 R918
25-BCB100-M1X CAP. ELEC 10 UF 16V +/-20% 2 C919;C920
25-BCB101-M1X CAP. ELEC 100 UF 16V +/-20% 2 C921;C904
25-BCB221-M1X CAP. ELEC 220 UF 16V +/-20% 2 C918;C009
25-BCB470-M1X CAP. ELEC 47 UF 16V +/-20% 2 C928;C926
26-EBP102-KBS CAP. CER 1000 PF 50V +/-20% 1 C306
26-EBP103-ZFX CAP. CER 0.01UF 50V +80/-20% F 4 C905;C917;C925;C927
40-2111SG-MAM1X P.C. B MAIN BD 1
41-WJ0050-B00 WIRE BARE JUMPER 5MM 2 J201;J906
41-WJ0060-B00 WIRE BARE JUMPER 6MM 1 J905

41-WJ0075-B00 WIRE BARE JUMPER 7.5MM 4

18-CB0222-JNX RES. C.F. 2.2K OHM 1/6W +/-5% 1 J912
41-WJ0080-B00 WIRE BARE JUMPER 8 MM 3 J908;J835;J836
41-WJ0090-B00 WIRE BARE JUMPER 9MM 1 J909
45-SAWF18-590 SAW FILTER F1859 1 Z101
46-33079W-02X PIN BASE *2 TJC3-2A 1 P006 P1 - P2 FOR KEY BD P001B
46-33079W-04X PIN BASE *4 TJC3-4A 1 P005 P2 - P5 FOR IR BD P002A
46-33079W-05X PIN BASE *5 TJC3-5A 1 P904 P3 - P7 FOR SIDE AV BD
47-RCA035-XX0 RCA JACK AV-3.2-6W-K 1 P901
50-03150D-1US7 FUSE 250V/3.15A 1 F801
70-271510-00A SERVICE CARD 1 FOR PRODUCTION USE
71-270870-0A9 LABEL 2
90-0DSTG1-SR1U HEAT SINK DSTG-1 0.6 FOR Q801
90-269080-ZU0U CLEAN COATING TC-131L 14KG/BARREL 0.1
10-79C9V1-DBX DIODE ZENER 9V1 1/2W 5% 1 FOR Q904 B 极接（-）& E 极接（+）
46-28559W-02X PIN BASE *2 TJC1-2A 1 P802
T8-0A21SG-XR1 ASS'Y - X-RAY 1
10-1N4001-EBX DIODE 1N4001 (RECTIFIER) 1 D410
10-1N4148-ABX DIODE 1N4148 (SWITCHING) 2 J004 (-) TO Q251(E);D251
10-79C20V-DBX DIODE ZENER 20V 1/2W 5% 1 D253
11-2SA817-AAX TRANSISTOR 2SA817AY 1 Q251
11-SC1815-YBX TRANSISTOR 2SC1815-Y (NPN) 1 Q250
18-CB0104-JNX RES. C.F. 100K OHM 1/6W +/-5% 1 R253
18-CB0222-JNX RES. C.F. 2.2K OHM 1/6W +/-5% 1 R257
18-CB0331-JNX RES. C.F. 330 OHM 1/6W +/-5% 1 R256
18-DB0750-FNX RES. M.F. 75 OHM 1/6W +/-1% 1 R255
18-DD0391-FNX RES. M.F. 390 OHM 1/4W +/-1% 1 R254
18-EE0109-JNX RES. FUS. 1 OHM 1/2W +/-5% 1 R407
25-BFB479-M1X CAP. ELEC 4.7 UF 50V +/-20% 1 C431
41-WJ0110-B00 WIRE BARE JUMPER 11MM 1 J007
41-WJ0170-B00 WIRE BARE JUMPER 17MM 1 J008
T8-21OFLN-SG1GAA ASS'Y - METCH TUBE NOMINAL 1
T8-0D276G-CRY ASS'Y - CRT BD 1
10-1N4148-ABX DIODE 1N4148 (SWITCHING) 2 D502;D501
11-SA1015-YBX TRANSISTOR ST2SA1015Y (PNP) 1 Q510
11-SC2482-0BX TRANSISTOR 2SC2482 3 Q501;Q502;Q503
18-CB0101-JNX RES. C.F. 100 OHM 1/6W +/-5% 3 R501;R504;R507
18-CB0102-JNX RES. C.F. 1K OHM 1/6W +/-5% 1 R522
18-CB0222-JNX RES. C.F. 2.2K OHM 1/6W +/-5% 1 R524

J603;J915;J916;D205 并将IC201的第22、23
脚加锡相连

18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 3 R525;R526;R527
18-CB0472-JNX CARBON RES. C.F. 4.7K OHM 1/6W +/-5% 3 R502;R505;R508
18-CB0681-JNX RES. C.F. 680 OHM 1/6W +/-5% 1 R523
18-CB0751-JNX RES. C.F. 750 OHM 1/6W +/-5% 3 R503;R506;R509
18-CD0104-JNX RES. C.F. 100K OHM 1/4W +/-5% 1 R521
18-FE0272-JNX RES. M.O. 2.7K OHM 1/2W +/-5% 3 R514;R515;R518
18-FG0183-JHX RES. M.O. 18K OHM 2W +/-5% 3 R510;R511;R512
25-BCB221-M1X CAP. ELEC 220 UF 16V +/-20% 1 C508
26-AIL103-KBX CAP.CER 10NF 500V +/-10% 1 C504
26-AMM221-JZX CAP. CER 220PF 2KV +/-5% SL 1 C505
26-EBP103-ZF1 CAP CER 50V 2.5MM 10nF -20%+80% 1 C514
26-EBP103-ZFX CAP. CER 0.01UF 50V +80/-20% F 1 C507
35-139730-00X FERR. BEAD BF60 2 FOR C514 (L505 & L506)
40-02135S-CRF1X CRT BD 1
41-WJ0060-B00 WIRE BARE JUMPER 6MM 1 J505
41-WJ0075-B00 WIRE BARE JUMPER 7.5MM 2 J502;J503
41-WJ0100-B00 WIRE BARE JUMPER 10MM 2 J501;J504
46-10967W-01X PIN BASE *1 TJC1-1A 1 P503
46-28816H-05X HS 5P24 500 TJC3-5Y/SCN-5Y 1 P501 P2 -P6 FOR M.BD P201
46-30615H-04X HS 4P24 460 F/W TJC3-4Y/SCN-4 1 P502 FOR M. BD P402
47-CRT004-XX0 CRT SOCKET GZS10-2-AC2 1 S501
26-EBP681-JCS CAP. CER 680 PF 50V +/-5% 3 C501;C502;C503

41-WJ0050-B00 WIRE BARE JUMPER 5MM 3

T8-21OFLN-FSG1GA ASS'Y - METCH TUBE NOMINAL(F.CAB) 1
46-27688H-04X HS 4P A/B 400/13 RBGW TJC1/4Y 1 P401H FOR D.Y COIL

1 44-21OFLN-SG1A
67-325570-2E0 CRT BRACKET 4
T8-21OFLN-MSG1GAA ASS'Y - METCH TUBE NOMINAL(M.BD) 1
18-CB0103-JNX RES. C.F. 10K OHM 1/6W +/-5% 1 R414
18-DE0563-FNX RES.MF 56K OHM 1/2W +/-1% 1 R831
18-EG0129-JHX RES. FUS. 1.2 OHM 2W +/-5% 1 R420
18-FF0122-JGX RES. M.O. 1.2K OHM 1W +/-5% 1 R411
18-FG0229-JHX RES. M.O. 2.2 OHM 2W +/-5% 1 R309
26-AMM681-KBX CAP. CER 680 PF 2KV +/-10% B 1 C402
27-AGQ394-JSX CAP. M.PP 0.39 UF 250VAC +/-5% 1 C421
27-ALR123-J0X CAP. M PP 0.012 UF 1.6KV +/-5% 1 C406B
36-LIN500-XX1 COIL LINEARITY 50 UH 1 L412
37-SC2502-78Q0X FBT BSC25-0278Q 1 T402
41-WJ0075-B00 WIRE BARE JUMPER 7.5MM 1 L411
T8-250250-SKY ASS'Y - SKD PACKING 1
74-045045-40F POLYBAG W/ANTISTATIC MAIN PCB 1
75-369900-C00 SKD POLYFOAM BASIN 1.17
76-002135-0AC CARTON BOX 0.042
74-015020-50Q PLASTIC BAG 1 FOR CRT BD PACKING
T8-325000-SKY ASS'Y - SKD PACKING 1
75-388320-CC0 POLYFOAM BOARD 0.05 FOR PMC
89-242080-JZ0 TRANSPARENT PACKING (6CMX41M) 1.3 FOR PMC
T8-21T17G-FCY ASS'Y - FRONT CABINET 1
02-GND021-XX0 ASS"Y - CRT GND WIRE&HOUSE 1
36-DEG210-BX1 DEGAUSSING COIL 2500MM 1
41-BF0300-0P2 WIRE 1007#24 1
41-BF0300-0PB WIRE Y0508011 1 FOR PWR KNOB

FOR Q504 (B - E);FOR Q506 (B - E);FOR
Q508 (B - E)

42-51216D-XX0 SPEAKER (50MMX120MM) 16 OHM 5W 2 W601;W602
46-35196H-02X HS 2P22 570/7 TJC3-2Y 1 P602H FOR M. BD P602
46-14026H-02X HS 2P 2468#22 570mm S11-2Y/7mm 1 P601H FOR M. BD P601
54-113970-0U0 PVC TUBE AWG NO.5 0.32 FOR L & R SPEAKING WIRE
54-114000-00X FELT TAPE (150MMX19MMX0.3MM) 4 STICK ON F. CAB.
54-205140-000 SPACER CRT MOUNTING T=2MM 4 MTG CRT
54-314740-0X0 CRT FIBRE SHEET (22MMX22MMX0.8MM) 8
57-10654X-00F TWIST TIE NY66 10
57-FGP005-XX1 LED LENS 1
59-130460-00X RUBBER PAD (25MMX7MM) 2 STICK ON F. CAB.(FOOTING)
59-312160-000 SPEAKER RUBBER CUSHION 8 MTG SPK
62-406210-0UN TRACK 2
63-B30060-AB4 S/T SCREW B 3 X 6 AB 3 MTG KEY BD & PUSH BUTTON
63-B30060-BT4 S/T SCREW B 3 X 6 BT 2 MTG SIDE AV BD
63-B30080-AB4 S/T SCREW B 3 X 8 AB 2 MTG IR BD & F. CAB
63-B40150-AB4 S/T SCREW B 4 X 15 AB 12 MTG CRT BKT & FRONT CABINET

63-W30100-AB4 S/T SCREW W 3 X 10 AB 5

63-W30120-AB4 S/T SCREW W 3 X 12 AB 8 MTG SPK & FRONT CABINET
63-Z30100-AB4 S/T SCREW 3.0 X 10 2 MTG POWER BD & F. CAB.
65-A60180-20E EXT. TOOTH WASHTER 6 X 18 X 2 4 FOR CRT
65-Z60100-50E NUT M 6 4 FOR CRT
67-X12668-0E0 SPRING CRT 6MMX40MMX0.5MM 1
67-X41381-0E2 POWER KNOB SPRING 1
T8-21T17G-FCYZ ASS'Y - FRONT CABINET 'ART' 1
55-DT17FC-0CN FRONTCABINET 1
56-407310-0HA DECORATE ANNULUS 1
56-BT18PK-0HA POWER KNOB 1
56-C276LS-1HC LENS 1
56-DT18FB-0HA PUSH BOTTON 1
58-DT18SI-1UI INLAY SIDE AV 1
T8-DT17AG-PAN ASS'Y - PACKING 1
49-382380-BAT BATTERY 7# (R03P AAA SUM-4) 2
75-DA41LL-EC0 POLYFOAM"LL" 1
75-DA41LR-EC0 POLYFOAM"LR" 1
75-DA41UL-EC0 POLYFOAM"UL" 1
75-DA41UR-EC0 POLYFOAM"UR" 1
T8-DT17AG-PANZ ASS'Y - PACKING`ART' 1
72-DT17SG-E23 OPERATION MANUAL 1
74-022032-6WE POLYBAG (23CMX34CMX0.06MM) 1
74-120120-80HAA POLYBAG W/SUFFOCATION WARNING 1
76-429990-0AT CARTON BOX 1
T8-21T17G-RCY ASS'Y - REAR CABINET 1
54-114000-00X FELT TAPE (150MMX19MMX0.3MM) 7 STICK ON REAR CAB.
62-301490-0UN SUPPORTER (FOR FBT) 1
62-389620-0UD POWER LINE BLOCK 1
63-B40250-AB2 S/T SCREW B 4 X 25 AB 6 MTG FRONT & REAR CAB.
63-F30100-BT3 S/T SCREW F 3 X 10 BT 2 MTG RCA JACK & REAR CABINET
63-W30100-AB4 S/T SCREW W 3 X 10 AB 2 MTG SUPPORT0R & R.CAB.
T8-21T17G-RCYZ ASS'Y - REAR CABINET 'ART' 1
55-DA41RC-1CN 21A41REARCABINET 1
58-431980-1UI INLAY 1

MTG PUSH BUTTON & FRONT CABINET;MTG
LIGHT LOOP & F. CAB.;MTG LENS & F. CAB

58-DA41RI-6UI INLAY REAR AV 1
58-DT17MP-JKT PLATE MODEL NO. 1
T8-HS36R0-A123 ASS'Y-REMOTE 1
11-0BC337-0BX TRANSISTOR (NPN) BC337-40 1 Q1501
13-00AS12-13B IC AS1213B 1 IC1501
14-IRE05B-XX0 IR EMITTING DIODE TSAL6200 1 D1501
18-CB0221-JNX RES. C.F. 220 OHM 1/6W +/-5% 1 R1502
18-CB0229-JNX RES. C.F. 2.2 OHM 1/6W +/-5% 1 R1501
25-HBB479-M1X CAP. ELEC 4.7 UF 10V +/-20% 1 C1504
26-EBP101-JCS CAP. CER 100 PF 50V +/-5% 2 C1501;C1502
26-EBP104-ZFS CAP. CER 0.1UF 50V +80%/-20% 1 C1503
40-UOCASR-RMB1X P.C.B. REMOTE HANDSET BD 1
41-WJ0120-B00 WIRE BARE JUMPER 12MM 1 J1501
45-COS455-KY1 CERAMIC RESONATOR 455KHZ 1 X1501
67-X38064-0E2 BATTERY SPRING (+/-) 1
67-X38065-0E2 BATTERY SPRING (+) 1
67-X38066-0E2 BATTERY SPRING (-) 1
74-007026-60C POLYBAG (70MMX260MMX0.06MM) 1
T8-HS36R0-A123Z ASS'Y-ARFPARTS 1
49-HS36R1-00X RUBBER PAD KEYS 1
55-HS36RB-1HA RREMOTEHANDSET-BOTTOMCABINET 1
55-HS36RD-0HA RBATT.DOOR 1
55-HS36RT-1HA RREMOTEHANDSET-FRONTCABINET 1
58-HS36R2-6UI INLAY REMOTE HANDSET 1
T8-HS36R0-PAY ASS'Y - PACKING 1
76-002091-0AT CARTON BOX LWH 624X384X556MM 0.006
76-326350-01A CARTON SHEET 61X37X0.3CM 0.062
V8-T7M123-03E02 SOFTWARE CODE 1 FOR IC001

Alignment Procedure of M123A Color TV

1. FLOWCHART OF ALIGNMENT PROCEDURE

2 Adjustment of B+ voltage

1) Apply 120VAC(±5V) to mains power input, and Philips standard testing pattern
to RF input.

2) Adjust VR830 in STANDARD mode until voltage at TP2 (B+) is 108V ±0.5V.

3. RF AGC adjustment
Observe monitor the collector waveform of Q101 with the probe of Oscilloscope as
illustration below. Select channel 2 (>70dB) from the antenna input. Enter D-mode,
select menu6 to adjust RFAGC item until the monitor peak value to 0.8V

p-p

.

IN60

3Pf

输出

输入

4. Screen & Focus voltage adjustment

Apply pattern signal in normal status, enter D① -mode, press “TV/AV” button to turn

off the vertical output.

Adjust the SCRREEN switch on the flyback transformer to make a horiz② ontal

shining line just visible on the screen.

Turn on the vertical output, adjust the “FOCUS” on the flyback transformer to ③

obtain the optimum focus.

5. White balance adjustment

1)Apply the black and white pattern in normal status;

2)Alignment of normal color temperature

① Change Color Temperature to normal status
② Use a color analyzer to measure the black side of the screen. By changing the

value of RC, GC and BC, set the reading of the color analyzer to X=285, Y=295.

B+
adjustment

AGC Screen & Focus

adjustment

White balance
adjustment

Sub-brightness
adjustment

Pincushion correction &
Horizontal Amplitude
adjustment

Center & Amplitude an

d

OSD adjustment

INPUT OUTPUT

18

③ Use a color analyzer to measure the white side of the screen. By changing the

value of GD, BD, set the reading of the color analyzer to X=285, Y=295.

④ Separately set the brightness and contrast from min. to max., repeat the step 2 and

3 until the reading of the color analyzer is correct.

3)Alignment of warm color temperature

①Change Color Temperature to warm status
②Use a color analyzer to measure the black side of the screen. By changing the value

of RC-W, GC-W and BC-W, set the reading of the color analyzer to X=294, Y=303.
③Use a color analyzer to measure the white side of the screen. By changing the value
of GD-W, BD-W set the reading of the color analyzer to X=294, Y=303.
④Separately set the brightness and contrast from min. to max., repeat the step 2 and 3
until the reading of the color analyzer is correct.

4)Alignment of cold color temperature

①Change Color Temperature to cold status
②Use a color analyzer to measure the black side of the screen. By changing the value

of RC-C, GC-C BC-C , set the reading of the color analyzer to X=279, Y=286.
③Use a color analyzer to measure the white side of the screen. By changing the value
of GD-C, BD-C, set the reading of the color analyzer to X=279, Y=286.
④Separately set the brightness and contrast from min. to max., repeat the step 2 and 3
until the reading of the color analyzer is correct
Note: Provided the production line is equipped with the self- White balance
adjusting equipment, white balance of M123A chassis can be adjusted automatically
as following: Press “I2C BUS” button under factory mode, the TV set will adjust
automatically.

6. Adjustment of Sub-brightness,

① Apply the Grey-scale/Color bar (NTSC signal) to the AV input, in normal status.
② Select BRTC to adjust the sub-brightness, until that the 2nd dark bar of 8 level

Grey scale just can be seen.

7. PAL picture geometric adjustment

menu 3
HPOS6/HPOS5（HZ horizontal center of 60/50 HZ Source）
Menu 2
HIGH6/HIGH5(vertical amplitude)
VCEN5/VCEN6(position of vertical center)
VP60/VP50（vertical position）
VLIN6/VLIN5（vertical linearity）
VSC6/VSC5（V-S Correction）

8 initialization

press sound-effect under factory mode, the set will initialize, until “OK” appears
on the screen which means the initialization is finished. After initialization, the set
will quit factory mode automatically.

Factory settings

D-mode:

Enter D-Mode by pressing D-Mode ON/OFF key, and then you can enter the D-mode.

S-mode:

Enter S-Mode by pressing VOLUME DOWN key on the unit until the
volume decrease to minimum level, then press the DISPLAY key on the remote
handset (don’t release the volume key) and you can enter S- mode.

After enter D-mode or S-mode, press OK, then press program up/down to

select menu from menu 1 to menu 22, press OK to enter the menu, press program
up/down to select item, press volume up/down to adjust the setting. Press D-mode
again to quit factory mode.

You can also enter menu 1 to menu 19 directly by pressing digital button 1~9,

0, notebook, CAP, Display, Sleep, Calendar, System/INS, Favorite, Return, Picture.

Menu 1 (Remote key: “1”)

Item

Remark

RC

R cut-off setting

GC G cut-off setting
BC B cut-off setting

GD G drive setting

BD B drive setting

Menu 2 (Remote key: “2”))

Item

Remark

HIGH5

Height (50Hz)

VP50 Vertical position (50Hz)

VLIN5 Vertical linearity (50Hz)

VSC5 Vertical S correction (50Hz)
VBLK5 Vertical blanking start & stop [1C, bit 3 ~ 0]
VCEN5 Vertical center (50Hz)

Menu 2 (Remote key: “2”)

Item

Remark

HIGH6

60Hz height

VP60 Vertical position

VLIN6 60Hz Vertical linearity

VSC6 Vertical S correction (60Hz)
VBLK6 Vertical blanking start & stop [1CH, bit 3 ~ 0]
VCEN6 Vertical center (60Hz)

Menu 3 (Remote key: “3”)

Item

Remark

HPOS5

Horizontal position (50Hz)

Menu 3 (Remote key: “3” )

Item

Remark

HPOS6

Horizontal position (60Hz)

Menu 4 (Remote key: “4”)

Item

Remark

CNTX Maximum contrast
CNTN Minimum contrast

BRTX Maximum brightness

BRTN Minimum brightness

COLX Maximum color
COLN Minimum color

TNTX Maximum tint level
TNTN Minimum tint level

Menu 5(Remote key: “5”)

Item

Remark

BRTC

50% brightness

COLC

50% color

COLP Color level for PAL
SCOL UV gain [06H, bit 6 ~ 4]
SCNT Sub-contrast [06H, bit 3 ~ 0]

CNTC 50% contrast
TNTCT 50% tint level (TV mode)
TNTCV 50% tint level (AV mode)

Menu 6(Remote key: “6” )

Item

Remark

ST3

50% Sharpness (TV mode, 3.58 system)

SV3 50% Sharpness (AV mode, 3.58 system)
SV4 50% Sharpness (AV mode, other system)

SVD 50% Sharpness (DVD mode)
ASSH Asymmetric sharpness [04H, bit 7 ~ 5]
SHPX Maximum sharpness
SHPN Minimum sharpness

Menu 7( Remote key: “7”)

Item

Remark

Bit 0,Bit 1

under factory mode : 00,11, STD 01:IRC
10:HRC

Bit 2

STD, IRC,HRC 1: user control 0: under factory mode

Bit 3

1: forbid CATV 95/96/97

Bit 4
Bit 5 1: have CCD
Bit 6 1:have V-CHIP

MOD1

Bit 7

1:as Monitor no TV mode

Bit 0,Bit 1

Speed of searching

Bit 2

High sensitivity ；1：yes 0:no

Bit 3

Volume control：1:PWM

Bit 4

AV1:

1：yes 0:no

Bit 5

AV2:

1：yes 0:no

Bit 6

YUV: 1：yes 0:no

MOD2

Bit 7

Bit 0
Bit 1

MOD3

Bit 2

Bit 3
Bit 4
Bit 5

TV，MSP AVL: 1: yes

Bit 6

AV，MSP AVL：1:yes

Bit 7

MONO+SAP：1：yes 0：no

Bit 0 When blue background off (mute pin of CPU): 0: audio

mute on 1: audio mute off

Bit 1 When blue background off (external mute pin of CPU):

0: audio mute on 1: audio mute off

Bit 2 When change channel: 0: picture mute off 1: picture

mute on

Bit 3 Switch between TV and CATV or change channel in the

tune menu 1: picture mute on
Bit 4 AFT –MUTE 1: ON,
Bit 5 Polarity of Tint
Bit 6

OPT

Bit 7
Bit 0 TDA98500 0:no 1:yes
Bit 1 MSP34xx 0:no 1:yes

Can’t be set to 1 at

the same time
Bit 2 1: AV audio out mute when volume is zero or mute
Bit 3 1: decreasing contrast when menu on
Bit 4 1: OSD don’t disappear automatically
Bit 5 1:biological
Bit 6 0: CH LOCK W/O V-CHIP

OPTM1

Bit 7 When turn on 0:child lock off 1:child lock on
Bit 0
Bit 1
Bit 2

Power on mode: 00: standby 01:previous

10&11: force power on
Bit 3 Hotel mode 1:on 0: off
Bit 4
Bit 5

Power on under hotel mode：

00: TV | 01: Video1 | 02: TV2 | 03: Last
Bit 6 1: under factory mode turn off the set by the remote or

power off, then turn on or power on, the set enter

factory mode

OPTM2

Bit 7 1: D-MODE

HDCNT

HSTOP

Menu 8 (Remote key: “8” )

Item

Remark

RFAGC

RFAGC [12H, bit 5 ~ 0]

BRTS

Sub brightness for SECAM

OSD

Horizontal position of OSD

OSDF OSD PLL DATA

CCD OSD

Horizontal position of CCD OSD

CCD OSDF PLL DATA of CCD OSD

TXCX

OSD intensity when maximum contrast

RGCN

OSD intensity when minimum contrast

Menu 9(Remote key: “9”)

Item

Remark

V01 Volume 1

V25 Volume 25
V50 Volume 50

V100 Volume 100

VOLMAX

Max volume under hotel mode

CURTCEN

Center of the curtain

VOLX

Output gain of PIN28 of TMPA8823 or MSP34x5

PWTM When use PWM to mute and no soun d when changing

channel, this item should be minimum as posible

Menu 10(Remote key: “0”)

Item

Remark

Bit 0

TV Color system AUTO：1：yes 0：no

Bit 1

TV Color system NTSC358：1：yes 0：no

Bit 2

TV Color system PALM：1：yes 0：no

Bit 3

TV Color system PALN：1：yes 0：no

Bit 4

AV Color system AUTO：1：yes 0：no

Bit 5

AV Color system NTSC358：1：yes 0：no

Bit 6

AV Color system PALM：1：yes 0：no

MDOE4

Bit 7

AV Color system PALN：1：1：yes 0：no

Bit 0

English: 1：yes 0：no

Bit 1

French: 1：yes 0：no

Bit 2

Portuguese: 1：yes 0：no

Bit 3

Spanish : 1：yes 0：no

Bit 4

AV Color system PAL443：1：1：yes 0：no

Bit 5

AV Color system NTSC443：1：1：yes 0：no

Bit 6

AV AUTO ： 1:AUTO1(PAL443 、 NTSC358 、
NTSC443) 0:AUTO2(NTSC358、PALM、PALN)

MDOE5

Bit 7

Bit 0

1:auto search function of the menu key on the front

panel
Bit 1 1: curtain when turn on the set
Bit 2 1: curtain when turn off the set

MDOE6

Bit3~ 7

V-mute timing when changing channel(01H = 8ms)

max :248ms

Bit 0
Bit 1

When sound mode change

11:change to the corresponding mode and ODS

display automatically

01: change to the corresponding mode and ODS

doesn’t display

00,10: change to MONO，ODS doesn’t display；

Bit 2
Bit 3

00， 10 ： detect BTSC and Korea stereo

automatically

01：force BTSC 11：force Korea stereo
Bit 4

FINE, 1:yes 0：no
Bit 5

50Hz block 1:yes 0：no

MDOE7

Bit 6 1: contrast change when power on

Bit 7

Bit 0

America V-CHIP standard 1：yes 0：no

Bit 1

Canadian V-CHIP 1：yes 0：no

Bit 2

UNRATED，1：yes 0：no

Bit 3

NO RATING，1：yes 0：no

MDOE8

Bit 4
~Bit 7

Time setting for curtain when turn on the set

Bit 0
~Bit 2

N/A

Bit 3

S-VIDEO ,0:parallel to AV1 1: parallel to AV2

Bit 4

1:sound effect w/o mpx (MSP3465)

MDOE9

Bit 5
~Bit 7

N/A

Menu 12(Remote key: “CAP”)

Item

Remark

OSD2 OSD Horizontal Position

OSDF2 OSD PLL DATA except

PYNX Normal H.SYNC max
PYNN Normal H.SYNC min

PYXS Search H.SYNC max
PYNS Search H.SYNC min

Menu 13 (Remote key: “Display” )

Item

Remark

CLTM

TV mode

CLVO Video mode
CLVS s-video mode

Bit 2 ~ 0 YDL [15H, bit 2 ~ 0] (-40ns~240ns)
Bit 4 ~ 3 NTSC matrix [03H, bit 7 ~ 6] (N1,N2,DVD)
Bit 5 C gamma [02H, bit 7] (color gamma on/off)
Bit 6 P/N ID [17H, bit 4] (PAL/NTSC killer sensit.)
Bit 7 FID [17H, bit 3] (Killer off)
Bit 1 ~ 0

ABL gain [16H, bit 5 ~ 4]

Bit 3 ~ 2 ABL start point [16H, bit 7 ~ 6]
Bit 4 WPS [00H, bit 7]

ABL

Bit 5 OSD ABCL [16H, bit 3]
Bit 1 ~ 0 Black stretch [15H, bit 4 ~ 3]
Bit 3 ~ 2 Y gamma [15H, bit 6 ~ 5]
Bit 5 ~ 4 OSD level [16H, bit 1 ~ 0]

DCBS

Bit 7 Blank switch [0CH, bit 7]

Bit 0

Over modulation [13H, bit 5]

Bit 1

Aft window size [13H, bit 6]

Bit 2

Buzz reducer [13H, bit 7]

Bit 3 Audio gain switch [14H, bit 7]
Bit 4
Bit 5
Bit 6

FLG0

Bit 7

1: VCO adjust automatically when changing
channel

Bit 0

CW SW [06H, bit 7], control PIN26,

Bit 1

Slice level [1EH, bit 6]

Bit 2

Mix gain [15H, bit 7]

FLG1

Bit 3

V ramp bias [1DH, bit 4]

Bit 4
Bit 5
Bit 6
Bit 7

SLO f0 shift(test only)

Menu 14(Remote key: “sleep)

Item

Remark

HAFC

Bit 1 ~ 0 AFC gain (TV mode) [1CH, bit 5 ~ 4]
Bit 3 ~ 2 AFC gain (AV mode) [1CH, bit 5 ~ 4]

AGCC

NOIS

ONTM V-mute timing when power on (01H = 16ms)

NSHP Decreased level of sharpness when noise reduction is on

PVLVL X-ray protection start point (00H Æ 0V & FFH Æ 5V)

PLMT (01H = 8ms)

Menu 15 (Remote key: “Calendar”)

Item

Remark

RC-C

R cut-off setting (for cool color temperature)

GC-C G cut-off setting (for cool color temperature)

BC-C B cut-off setting (for cool color temperature)
GD-C G drive setting (for cool color temperature)
BD-C B drive setting (for cool color temperature)

Menu 16 (Remote key: “System/INS” )

Item

Remark

RC-W

R cut-off setting (for warm color temperature)

GC-W G cut-off setting (for warm color temperature)
BC-W B cut-off setting (for warm color temperature)

GD-W G drive setting (for warm color temperature)

BD-W B drive setting (for warm color temperature)
YUVGC YUV R cut-off
YUVBC YUV B cut-off

Menu 17 (Remote key: “FAV” )

Item

Remark

D-COL

Dynamic color

D-BRI

Dynamic brightess

D-CON

Dynamic contrast

D-SHP

Dynamic sharpness

Menu 18 (Remote key: “Return” )

Item

Remark

S-COL

Standard color

S-BRI

Standard brightess

S-CON

Standard contrast

S-SHP

Standard sharpness

Menu 19 (Remote key: “Picture” )

Item

Remark

M-COL

Mild color

M-BRI

Mild brightess

M-CON

Mild contrast

M-SHP

Mild sharpness

Menu 20: no shortcut key

Item

Remark

SEG_POINT1

Highest frequency of VHFL

SEG_POINT2

Highest frequency of VHFH

DATA_VL

VHFL bandswitch（BB）

DATA_VH

VHFH bandswitch（BB）

DATA_UF

UHF bandswitch（BB）

SPE_POS1

The channel number treated specially

SPE_DATA1

Bandswitch in which the special channel （BB）

SENSI_ON
SENSI_OFF

Menu 21: no shortcut key

Item

Remark

THEATER-BAS

Theater bass

THEATER-TRE

Theater treble

CONCERT-BAS

Concert bass

CONCERT-TRE

Concert treble

BROCAST-BAS

Brocast bass

BROCAST-TRE

Brocast treble

Menu 22: no shortcut key

Item

Remark

VOL_MAI Volume Loudspeaker
GATE

Carrier-Mute

VOL-OUT

AV output gain

AV GAIN

AV input Gain

Note:
① Provided the production line is equipped with the self-adjusting equipment, The adjusted item

should be based on the result by such equipment.

② There’s difference between PAL geometric/OSD adjustment and NTSC geometric/OSD

adjustment. PAL adjustment must be done before NTSC adjustment.

24V

B

R R

+9

V

U Y Y

SIF OUT

CVBS/Y

E2PROM

24C08

SDA SCL

AMP

TDA7057AQ

L

R

MCU+VCD
TMPA8823

CRT

Video

amplifie

Horizontal output

Vertical output

STV9302

TUNER

SAWF

+112V

+12

+9V

+5V

4052

AV1
(VIDEO)

AV2
(VIDEO)

MSP3425

AV1
(L,R)

AV2
(L,R)

27

28

29

30

Colour Television Chassis: M123A

31

Fuse Blown

Is the drain of
Q801 shorted
to earth?

Yes

Cheek /
Replace
Q801

Is D815~D818
OK?

Yes

Check IC801 and
the peripheral
components.

Replace
D815~D818

No

No

Figure 1 Fuse Blown

No raster
abnormal + B

Is the + B,
resistance to earth
ok ?

Check the load of
B+

No

Yes

Check IC802 and their
peripheral components

Yes

Check Q830
Q831, Q832

etc.

Figure2 No Raster Abnormal +B

Colour Television Chassis: M123A

32

No raster +
B Voltage OK

Is the voltage
of in 25 of
IC201 3.3v

Is the resistance
to earth of pin25
if IC201 ok

No

Yes

Is the H-out
waveform at PIN
13 of IC201 OK?

Yes

Check the waveform
at static working
point of Q401.

Yes

Check Q402
and LOT

No

Replace
IC201

NO

Yes

Replace IC201 Replace Q401

Is the output
voltage of IC401
9V?

Check R233,C231
and C233

yes

No

Figure3 No Raster, +B OK

No

No picture, dense
noise dots

Is the antenna feed line
or the adapter broken
or unsoldered?

Handing the antenna
fault

Yes

No

Is the signal at
Pin41, Pin42 of
IC201 ok?

Is the signal at IF
pin of the tuner

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

No

Check signal at P57, P58, of

IC201 and replace the
abnormal relative circuit

Yes

Check EEPROM

Y

es

Check/Replace
I

C20

1

Y

es

Is the supply
volta

g

e of tuner

No

Check/Replace
power supply
circuit

Yes

Check/Replac
e Tuner

Y

es

Check the relative
circuit of Q101,
Z101 etc

Figure 4 No Picture dense noise dots

Colour Television Chassis: M123A

33

Yes

Symptom: raster ok, no
picture, no sound, sparse
noise dots

Apply the pointer of
multimeter at R X 1 KΩ,

connect one probe to GND,
use another to touch P42 of
IC101. Are there
interference particles
flashing on the screen?

Unsolder a pin of C110, apply the
pointer of multimeter at R X 1 K
Ω , connect the red probe to
GND, use the black probe to
touch B of Q101. Are there
interference particles flashing on
the screen?

Yes

Replace the Tuner

No

Is the voltage at
P29, P36 of
IC201 ok?

No

Check and repair
the +9V power
supply

No

Bridge a capacitor of 1000pF between
the input and output of Z101. Apply
the pointer of multimeter at R X 1 K
Ω, connect the red probe to GND,
and use the black probe to touch B of
Q101 Are there interference particles
flashing on the screen

Yes

Replace Z101 (SAW)

Does the IF
pre-amplifier
work
normally?

Yes

Check & repair
the IF
pre-AMP. circuit

No

Figure 5 Sparse noise dots

No

Colour Television Chassis: M123A

34

No

Yes

Is it mute at
Pin 1 of
IC601?

Yes

No sound

Is the speaker Replace the speaker

Apply the pointer of multimeter at
RX1K Ω connect one probe to
GND, use another to touch P3, P5 of
IC601, Is there interference noise
from the speaker.

No

Check power
supply of
IC601

Yes

Is the waveform
at P47 of IC1001
ok?

Yes

Check/Replace the power
supply of IC1001. Then
RESET

NG

Is the
BUS ok?

Check IC201 and
the relative circuit

No

No

Check/Replace
Q1001, X1002.

NG

Is the waveform at
P31 of IC201 ok?

Replace IC201

No

Yes

Replac
e IC601

Check/Replace
Q604,Q605.

No

Figure 6 No Sound

Is both +14V and -14V ok?

Yes

No

Is the signal at P1 of
IC301 ok?

Check/Replace IC301

Check signal at P16 of
IC201

No

Check/Replace
IC201,C234

Yes

Check/Replace R244,

R306

Yes

Check/Replace R405,
R409

,

D403, D402

No

Figure 7 No Vertical Scanning

Colour Television Chassis: M123A

35

Check P25, P49 of IC201
and the relative circuit

No Picture

TV&AV
haven’t
Picture

Check RGB signal

Check +9V,
+200V

Ok

Check
Q501~Q503

Check R516 ~
R521 etc.

No

Ok

Replace IC201

TV has Picture. AV hasn’t Picture.

Check the waveform of
pin 14 of IC901

No

Q905 and its peripheral circuit

No

Check Pin61 of IC201
and peripheral circuit

Check the logic of
Pin9 Pin10 of IC901

Yes

Replace IC901

Yes

AV has Picture. TV hasn’t Picture.

Is the waveform at
P30 of IC101 ok?

Check Q208, Q209

and peripheral
circuit

Yes

Check IC201 and relative
circuit. please reference
the previous page named
Figure 5.

No

Figure 8 No Picture

Colour Television Chassis: M123A

36

Symptom:
Tuning Control
doesn’t work

Press
STANBY key
on R/C. Can
the TV be
turn on and
turn off?

Does the channel
number display
on the screen?

Yes

No

Start auto­search. Is the
BUS ok?

Yes

After auto-search, Can
the searched program
be memorized?

Is the voltage at
P9 o

f

IC201ok?

Replace IC201

Yes

Check/Repair +5V
power supply.

No

No

Is there sync
pulse at P62
of IC201?

No

Check the power
supply of IC201.
Are there H & V
flyback pulses at
P12 of IC201

No

No

Check
R408,R406,D404,C422

Yes

Check/Replace
IC201

No

Check the
waveform
at Pin57,
Pin58 of
IC201

No

Yes

Is the
+33V/+5
VA power
supply
ok?

Check/Repair +33V
power supply

No

Yes

Is there the
short circuit
around the
integration
circuit?

Check/Replace
the tuner

No

Check/Repair
the integration

Yes

Figure 9 Tuning Control doesn’t work

①

Is there sync pulse at B
of Q003?

Replace Q003

Yes

Check Q210, Q211
and the peripheral
circuit.

No

Yes

Colour Television Chassis: M123A

37

Is there any change on
the voltage level at
P64 of IC201?

No

Check the remote control
receiver and transmitter.

Yes

Is the VDD(+5V) at
P9 and P55 of IC201
ok?

Is there the 8MHz/5Vp-p
sine wave oscillations at P6
of IC201?

Is the voltage at P5 of
I

C201 ok?

Have P5 of IC201 shorted to
GND in an instant. Can the
IC201 work?

Check/Repair the reset
circuit.

Yes

Yes

Yes

No

Check/Replace
IC201

No

No

Are C021, C022
and X001 ok?

No

Replace the disabled
components

Yes

No

Check Q002 and
peripheral circuit

①

Yes