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PART NUMBER

DESCRIPTION               QTY

                  LOCATION

08-02916T-CR2

ASS'Y - CRT BD (S.S)

10-1N4148-ABX

DIODE 1N4148 (SWITCHING)

3

D501, D502, L501

11-A562TM-0BX

TRANSISTOR 2SA562TM-0

1

Q507

11-SC1815-YBX

TRANSISTOR 2SC1815Y

3

Q502, Q504, Q506

11-SC4544-0AX

TRANSISTOR 2SC4544 (NPN)

3

Q501, Q503, Q505

18-CB0102-JNX

RES. C.F. 1K OHM 1/6W +/-5%

1

R515

18-CB0272-JNX

RES. C.F. 2.7K OHM 1/6W +/-5%

1

R514

18-CB0561-JNX

RES. C.F. 560 OHM 1/6W +/-5%

3

R501, R505, R510

18-CB0681-JNX

RES. C.F. 680 OHM 1/6W +/-5%

8

R502, R503, R506, R508, R509, R511, R513, R522

18-FE0272-JNX

RES. M.O. 2.7K OHM 1/2W +/-5%

3

R519, R520, R521

18-FG0183-JHX

RES. M.O. 18K OHM 2W +/-5%

3

R516, R517, R518

25-BCB471-M1X

CAP. ELEC 470 UF 16V +/-20%

1

C506

25-BLA100-M1X

CAP. ELEC 10 UF 250V +/-20%

1

C504

26-AMK102-KRX

CAP. CER 1000 PF 2KV +/-10% R

1

C505

26-EBP103-ZFX

CAP. CER 0.01UF 50V +80-20% F

2

C508, C509

26-EBP391-JCX

CAP. CER. 390PF 50V +/-5% CH

2

C501, C502

26-EBP471-JCX

CAP. CER 470 PF 50V +/-5% CH

1

C503

34-R220K2-1CX

COIL CHOKE 22 UH +/-10%

1

L502

34-R569K2-1CX

COIL CHOKE 5.6 UH +/-10%

1

L503

35-237250-00X

FERR. BEAD HF70

2

FOR C508 (L505 & L506)

40-02501C-CRG

P.C.B. CRT BD

1

41-WJ0050-B00

WIRE BARE JUMPER 5MM

1

L504

41-WJ0060-B00

WIRE BARE JUMPER 6MM

3

R504, R507, R512

41-WJ0075-B00

WIRE BARE JUMPER 7.5MM

1

J503

46-10967W-01X

PIN BASE *1 TJC1-1A

1

P501, FOR CRT GROUNDING HOUS.

46-30615H-04X

HS 4P24 460 F/W TJC3-4Y/SCN-4

1

P502, FOR M. BD P421

46-37030H-05X

HS 5P 2468#24 450 TJC3-5Y/SCN

1

P503, FOR M. BD P201

47-265540-0U7

SOCKET CRT GZS10-2-4 (C.B.)

1

S501

02-GND029-XX0

ASS'Y-CRT GND WIRE & HOUS.(29)

1

36-294960-017

DEGAUSSING XC-74A-3100-TCL 29"

1

42-61308F-XX2

SPEAKER 8 OHM 8W

2

SP601, SP602

44-29OFLS-SJ2A

CRT A68QBT892X50 (AUST)

1

CRT01

46-26514H-04X

HS 4P A/B 500/13 RBGW TJC1-4Y

1

P411H, FOR D.Y COIL

46-27580H-02X

HS 2P22 600/7 F/W TJC3-2Y

1

P602H, FOR M.BD P602

46-27580H-02X

HS 2P22 600/7 F/W TJC3-2Y

1

P601H, FOR M.BD P601

54-113971-0UE

PVC TUBE #6 L=160MM

2

FOR SPEAKER CONNECTORS

54-114000-00X

FELT TAPE 150X19MM

4

FOR (F.CAB) SPEAKER

54-205140-000

SPACER CRT MOUNTING T=2MM

4

MTG CRT TO F.CAB

54-314740-0X0

CRT FIBRE SHEET T=0.8MM

4

MTG CRT TO F.CAB

55-2906FC-0CN

FRONT CABINET

1

56-2906FB-0HA

PUSH BUTTON

1

56-2906LE-0HC

LENS

1

56-2906PK-0HA

POWER KNOB

1

59-130460-00X

RUBBER PAD (25MMX7MM)

6

59-312160-000

SPONGE CUSHION

8

MTG SPK. TO F.CAB

62-216340-0UA

HOLDER POWER CORD

1

62-269940-0HA

POWER SW. ADAPTER

1

62-357060-0UN

SUPPORT POST

2

63-B40150-AB3

S/T SCREW B 4 X 15 AB (BLACK)

4

MTG SUPPORT POST TO F. CAB

63-H60250-AB4

S/T SCREW H 6 X 25 AB

4

MTG CRT TO F. CAB

63-W30100-AB4

S/T SCREW W 3 X 10 AB

3

MTG PUSH BUTTON & FRONT CAB.

63-W30100-AB4

S/T SCREW W 3 X 10 AB

1

MTG LENS & FRONT CAB.

63-W30140-HS4

S/T SCREW W 3 X 14 HS

8

MTG SPK. TO F. CAB

65-A60180-20E

EXT. TOOTH WASHTER 6 X 18 X 2

4

MTG CRT TO F. CAB

67-216790-0E0

SPRING CRT 6MMX50MMX0.6MM

2

67-250450-0E0

SPRING KNOB

1

08-HS46F0-M13F

ASS'Y - IR HANDSET "BG"

10-1N4148-ABX

DIODE 1N4148 (SWITCHING)

5

D1502, D1503, D1504, D1505, D1507

11-0BC337-0BX

TRANSISTOR BC337-40 (NPN)

1

Q1501

13-9028F0-23P

IC TC9028-023 (IR TRANS.)

1

IC1501

14-IRE05B-XX0

INFARED EMITTING DIODE

1

D1501

18-CB0229-JNX

RES. C.F. 2.2 OHM 1/6W +/-5%

1

R1502

18-CB0682-JNX

RES. C.F. 6.8K OHM 1/6W +/-5%

1

R1501

25-HBB470-M1X

CAP. ELEC 47UF 10V +/-20%

1

C1503

26-EBP101-JCX

CAP. CER 100 PF 50V +/-5% CH

2

C1501, C1502

40-2909NT-RMB

P.C.B. REMOTE HANDSET

1

45-COS455-KY0

CER RESONATOR 455 KHZ

1

X1501

49-HS46F0-00X

RUBBER PAD KEYS

1

Page 1 of 7

CTM6840

Summary of Contents for CT-M6840

Page 1: ...SERVICE MANUAL CTM6840 68CM CTV Effective JULY02 CTM6840SERV ...

Page 2: ...NTSC QC checking Enter D Mode by pressing D Mode ON OFF key and then you can enter the D 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 you can adjust the setting according to the following procedure Press 1 to ent...

Page 3: ...put level at 25 9 Volume output level at 50 Press 7 to enter system setting System setting 9 System setting System setting System setting System setting System setting System setting Press 8 to enter picture alignment menu 1 SCNT Sub contrast for luminance signal CNTX Maximum contrast CNTN Minimum contrast 9 BRTX Maximum brightness 9 BRTN Minimum brightness 9 COLX Maximum color COLN Minimum color ...

Page 4: ... the voltage at pin 48 of IC201 becomes 4 62 0 2V the picture must stable 4 Enter D mode and press the AFT update BBE button It will start Auto AFT Adjustment and the screen will show PIFAFT OK if the process is finished 1 Apply a 38 9MHz color bar with NICAM signal to the IF input 2 Monitor the DC voltage at pin 15 of IC1101 3 Adjust T1101 until the voltage at pin 15 of IC1101 becomes 2 5 0 1V 4 ...

Page 5: ...nter D mode and press 1 key and the screen will become a horizontal line Then adjust the SCREEN VR on the flyback transformer to set the intensity of the line to a minimum visible level the line can just be seen 4 Press 1 key again and the TV will become full raster 5 Select BRTC to adjust the sub brightness until that the 2 dark bar of 8 level grey scales just can be seen 1 Receive a black and wh...

Page 6: ... NTSC signal to the RF input in STANDARD status 2 Select HPOS60 to adjust the Horizontal center 3 Select VPOS60 to adjust the Vertical center 4 Select HIGH60 to adjust the Vertical amplitude 5 Select VLIN60 to adjust the vertical linearity 6 Select VSC60 to adjust the vertical S correction 1 Enter D mode and press key 0 then choose OSD item and adjust the OSD horizontal position 2 Enter D mode and...

Page 7: ...alue 00 BIT Item 0 Blanking 0 on 1 off 1 2 3 4 5 V Mute timing 200ms 8ms Data 6 Base band filter in NTSC system 0 on 1 off 7 VMOD VCDM2 default value 40 for 38MHz IF 30 for 38 9MHz IF BIT Item 0 AFT mute 0 on 1 off 1 SECAM ADJ 0 SECAM correction off 1 SECAM correction on 2 TB1238N_VMOD 3 PIF VCO ADJ 0 follow bit 0 1 manual adjust 6 5 4 IF frequency 111 33 9MHz 110 33 95MHz 101 34 47MHz 100 38MHz 0...

Page 8: ...o use 4 BG 0 off 1 on 5 I 0 off 1 on 6 DK 0 off 1 on 7 M 0 off 1 on OPTION default value 04 BIT Item 0 When blue background off mute pin of CPU 0 audio mute on 1 audio mute off 1 When blue background off external mute pin of CPU 0 audio mute on 1 audio mute off 2 When change channel 0 picture mute off 1 picture mute on 3 Audio demodulation gain setting 0 50KHz 1 25KHz 4 When no signal 0 search cha...

Page 9: ... SP602 44 29OFLS SJ2A CRT A68QBT892X50 AUST 1 CRT01 46 26514H 04X HS 4P A B 500 13 RBGW TJC1 4Y 1 P411H FOR D Y COIL 46 27580H 02X HS 2P22 600 7 F W TJC3 2Y 1 P602H FOR M BD P602 46 27580H 02X HS 2P22 600 7 F W TJC3 2Y 1 P601H FOR M BD P601 54 113971 0UE PVC TUBE 6 L 160MM 2 FOR SPEAKER CONNECTORS 54 114000 00X FELT TAPE 150X19MM 4 FOR F CAB SPEAKER 54 205140 000 SPACER CRT MOUNTING T 2MM 4 MTG CR...

Page 10: ...RANSISTOR 2SD1499Q POWER 1 Q722 11 SK2541 0BX TRANSISTOR 2SK2541 N CHANNEL 2 Q052 Q212 13 000040 52P IC 4052 2 IC961 IC962 13 00M24C 08P IC M24C08 EEPROM 8K 1 IC002 13 00TA84 27P IC TA8427K 1 IC301 13 0TDA26 16S IC TDA2616 AUDIO O P 1 IC601 13 TA1216 ANP IC TA1216AN 1 IC651 13 TB1240 ANP IC TB1240AN 1 IC201 13 TCLM13 V1P IC TCLM13V1 3CD4 CPU 1 IC001 14 LED05R XX0 LED HFR105 5MM 1 D031 18 CB0101 JN...

Page 11: ...2 OHM 1 2W 5 1 R305 18 CE0470 JNX RES C F 47 OHM 1 2W 5 1 R103 18 DF0109 JGX RES M F 1 OHM 1W 5 1 R461 18 EG0109 JHX RES FUS 1 OHM 2W 5 1 R431 18 FE0121 JNX RES M O 120 OHM 1 2W 5 1 R306 18 FE0472 JNX RES M O 4 7K OHM 1 2W 5 1 R471 18 FF0103 JGX RES M O 10K OHM 1W 5 1 R421 18 FF0221 JGX RES M O 220 OHM 1W 5 1 R307 18 FF0242 JGX RES M O 2 4K OHM 1W 5 1 R402 18 FF0681 JGX RES M O 680 OHM 1W 5 1 R411...

Page 12: ...4 J0X CAP M P E 0 47 UF 50V 5 5 C225 C243 C251 C603 C604 27 MCC272 J0X CAP P E 2700 PF 100V 5 1 C471 27 PBC103 J0X CAP P E 0 01UF 50V 5 1 C052 27 PBC222 J0X CAP P E 2200 PF 50V 5 2 C207 C221 27 PBC223 J0X CAP P E 0 022UF 50V 5 3 C201 C611 C612 27 PBC273 J0X CAP P E 0 027UF 50V 5 2 C653 C659 27 PBC333 J0X CAP P E 0 033UF 50V 5 1 C302 27 PBC393 J0X CAP P E 0 039UF 50V 5 1 C308 27 PBC472 J0X CAP P E ...

Page 13: ...RE JUMPER 17MM 3 J231 J240 J835 41 WJ0175 B00 WIRE BARE JUMPER 17 5MM 6 J223 J249A J251 J661 J771 J811 41 WJ0180 B00 WIRE BARE JUMPER 18MM 5 J212 J213 J214 J215 J623 41 WJ0190 B00 WIRE BARE JUMPER 19MM 1 J823 41 WJ0195 B00 WIRE BARE JUMPER 19 5MM 3 J323 J355 J641 41 WJ0200 B00 WIRE BARE JUMPER 20MM 7 J312 J427 J624 J626 J727 J824 J831 45 FIL5M5 0Y0 CER FILTER 5 5 MHZ 1 Z261 45 OSC4M4 3Y0 CRYSTAL 4...

Page 14: ...C MC7809C LINEAR 9V 1A 1 IC851 13 00SE14 0NS IC SE140N 1 IC831 13 SFH615 A3P PHOTO COUPLER SFH615A3C 1 IC802 13 STRF66 56P IC STR F6656 1 IC801 18 CB0152 JNX RES C F 1 5K OHM 1 6W 5 1 R833 18 CB0223 JNX RES C F 22K OHM 1 6W 5 1 R840 18 CB0332 JNX RES C F 3 3K OHM 1 6W 5 1 R838 18 CB0392 JNX RES C F 3 9K OHM 1 6W 5 1 R841 18 CD0102 JNX RES C F 1K OHM 1 4W 5 2 R805 R808 18 CD0272 JNX RES C F 2 7K OH...

Page 15: ...075 B00 WIRE BARE JUMPER 7 5MM 1 J471 41 WJ0100 B00 WIRE BARE JUMPER 10MM 3 J371 J654 J655 41 WJ0125 B00 WIRE BARE JUMPER 12 5MM 3 J361 J492 R831 41 WJ0145 B00 WIRE BARE JUMPER 14 5MM 1 J491 41 WJ0150 B00 WIRE BARE JUMPER 15MM 1 R812 41 WJ0155 B00 WIRE BARE JUMPER 15 5MM 2 J561 J562 41 WJ0175 B00 WIRE BARE JUMPER 17 5MM 2 J271 J281 41 WJ0180 B00 WIRE BARE JUMPER 18MM 1 J353 41 WJ0190 B00 WIRE BARE...

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