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Teac CT-M6855S Service Manual

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SERVICE MANUAL
1. Caution.....................................................................2
2. Specification...............................................................6
3. BOM List ........................... ..................... ...............9
4. Alignment Procedure....................................................35
5. Block Diagram............................................................39
6. Schematic Diagram......................................................40
7. PCB Layout................................................................41
8. Explode Diagram View.................................................42
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.
TEAC
CT-M6855S

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Summary of Contents for Teac CT-M6855S

  • Page 1 TEAC SERVICE MANUAL CT-M6855S 1. Caution……………………………………………………………2 2. Specification………………………………………………………6 3. BOM List ……………………… ………………… ……………9 4. Alignment Procedure………………………………………….…35 5. Block Diagram……………………………………………………39 6. Schematic Diagram………………………………………………40 7. PCB Layout………….……………………………………………41 8. Explode Diagram View………….………………………………42 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.
  • Page 2 CAUTION: Use of controls, adjustments or procedures other than those specified herein may result in hazardous radiation exposure. CA UTION: TO REDUCE THE RISK OF CAUTION ELECTRICAL SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE RISK RISK OF OF ELECTRI ELECTRIC C PARTS INSIDE.

  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS 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.
  • Page 4 PROTECTION AND LOCATION OF YOUR SET 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.
  • Page 5 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.
  • Page 6 Item No. Description Quantity Req. Designator Remarks 08-29224E-CR1 ASS'Y - CRT BD 10-1N4148-ABX DIODE 1N4148 (SWITCHING) 1 D501 10-1N4148-ABX DIODE 1N4148 (SWITCHING) 1 D502 10-1N4148-ABX DIODE 1N4148 (SWITCHING) L501("1" TO P501"1") 11-A562TM-0BX TRANSISTOR 2SA562TM-0 1 Q507 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q502 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q504...
  • Page 7 Item No. Description Quantity Req. Designator Remarks 35-237250-00X FERR. BEAD HF70 4.5X5.0 FOR C508 (L505 & L506) 40-02501C-CRG P.C.B. CRT BD 41-WJ0050-B00 WIRE BARE JUMPER 5MM 1 L504 41-WJ0050-B00 WIRE BARE JUMPER 5MM 1 L502 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 R504 41-WJ0060-B00 WIRE BARE JUMPER 6mm...
  • Page 8 Item No. Description Quantity Req. Designator Remarks 48-388070-XX0 DOOR LOCK 54-205140-000 SPACER CRT MOUNTING T=2MM FOR CRT MTG. 54-314740-0X0 CRT FIBRE SHEET (22mmX22mmX0.8mm) FOR CRT MTG. 55-2922FC-0UN FRONT CABINET 55-2922FD-0HA FRONT DOOR 56-2922LE-0HC LIGHT GUIDING POST 56-2922PK-0UA POWER KNOB 58-2922FI-1UI INLAY FRONT AV 62-10654X-00F UNI-TIE (2.5mmX95mm)
  • Page 9 Item No. Description Quantity Req. Designator Remarks 18-CB0223-JNX RES. C.F. 22k OHM 1/6W +/-5% 1 R091 08-29224E-MA1 ASS'Y - MAIN BD 10-0BY228-F0X DIODE BY228 1 D411 10-0FR104-FBX DIODE FR104 (FAST RECTIFIER) 1 D412 10-0FR104-FBX DIODE FR104 (FAST RECTIFIER) 1 D421 10-0FR104-FBX DIODE FR104 (FAST RECTIFIER) 1 D441...
  • Page 10 Item No. Description Quantity Req. Designator Remarks 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q909 11-SC2482-0BX TRANSISTOR 2SC2482 1 Q401 11-SC3779-DBX TRANSISTOR 2SC3779D (RF AMPL) 1 Q101 11-SD2539-0AX TRANSISTOR 2SD2539 (HORIZ O/P) 1 Q411 13-000040-52P IC 4052 1 IC901 13-000040-52P IC 4052 1 IC902 13-00M24C-08P IC EEPROM 8K M24C08 1 IC001...
  • Page 11 Item No. Description Quantity Req. Designator Remarks 18-CB0103-JNX RES. C.F. 10K OHM 1/6W +/-5% 1 R035 18-CB0103-JNX RES. C.F. 10K OHM 1/6W +/-5% 1 R043 18-CB0103-JNX RES. C.F. 10K OHM 1/6W +/-5% 1 R227 18-CB0103-JNX RES. C.F. 10K OHM 1/6W +/-5% 1 R246 18-CB0103-JNX RES.
  • Page 12 Item No. Description Quantity Req. Designator Remarks 18-CB0222-JNX RES. C.F. 2.2k OHM 1/6W +/-5% 1 R946A 18-CB0222-JNX RES. C.F. 2.2k OHM 1/6W +/-5% 1 R423 18-CB0222-JNX RES. C.F. 2.2k OHM 1/6W +/-5% 1 R417 18-CB0223-JNX RES. C.F. 22k OHM 1/6W +/-5% 1 R005 18-CB0223-JNX RES.
  • Page 13 Item No. Description Quantity Req. Designator Remarks 18-CB0470-JNX RES. C.F. 47 OHM 1/6W +/-5% 1 R927 18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 1 R036 18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 1 R042 18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 1 R044 18-CB0471-JNX RES.
  • Page 14 Item No. Description Quantity Req. Designator Remarks 18-FE0159-JNX RES. M.O. 1.5 OHM 1/2W +/-5% 1 R309 18-FE0472-JNX RES. M.O. 4.7K OHM 1/2W +/-5% 1 R316 18-FF0221-JGX RES. M.O. 220 OHM 1W +/-5% 1 R311 18-FF0242-JGX RES. M.O. 2.4K OHM 1W +/-5% 1 R402 18-FF0681-JGX RES.
  • Page 15 Item No. Description Quantity Req. Designator Remarks 26-EBP103-ZFX CAP. CER 0.01UF 50V +80/-20% F 1 C913 26-EBP152-KBX CAP. CER 1500pF 50V +/-10% B 1 C002 26-EBP181-JCX CAP. CER 180PF 50V +/-5% CH 1 C919 26-EBP220-JCX CAP. CER 22PF 50V +/-5% CH 1 C252 26-EBP220-JCX CAP.
  • Page 16 Item No. Description Quantity Req. Designator Remarks 27-MBC333-J0X CAP. M.P.E 0.033UF 63V +/-5% 1 C656 27-MBC334-J0X CAP. M.P.E 0.33UF 63V +/-5% 1 C608 27-MBC393-J0X CAP. M.P.E 0.039UF 63V +/-5% 1 C309 27-MBC473-J0X CAP. M.P.E 0.047 UF 63V +/-5% 1 C629 27-MBC473-J0X CAP.
  • Page 17 Item No. Description Quantity Req. Designator Remarks 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 J628 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 J909 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 J910 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 J911 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 J923 41-WJ0060-B00 WIRE BARE JUMPER 6mm...
  • Page 18 Item No. Description Quantity Req. Designator Remarks 41-WJ0085-B00 WIRE BARE JUMPER 8.5MM 1 J627 41-WJ0085-B00 WIRE BARE JUMPER 8.5MM 1 J902 41-WJ0085-B00 WIRE BARE JUMPER 8.5MM 1 J907 41-WJ0090-B00 WIRE BARE JUMPER 9MM 1 J024 41-WJ0090-B00 WIRE BARE JUMPER 9MM 1 J906 41-WJ0100-B00 WIRE BARE JUMPER 10MM...
  • Page 19 Item No. Description Quantity Req. Designator Remarks 41-WJ0175-B00 WIRE BARE JUMPER 17.5MM 1 J212 41-WJ0185-B00 WIRE BARE JUMPER 18.5MM 1 J016 41-WJ0185-B00 WIRE BARE JUMPER 18.5MM 1 J017 41-WJ0185-B00 WIRE BARE JUMPER 18.5MM 1 J226 41-WJ0185-B00 WIRE BARE JUMPER 18.5MM 1 J621 41-WJ0185-B00 WIRE BARE JUMPER 18.5MM...
  • Page 20 Item No. Description Quantity Req. Designator Remarks 25-BCA100-M1X CAP. ELEC 10 UF 16V +/-20% 1 C021 25-BCA100-M1X CAP. ELEC 10 UF 16V +/-20% 1 C033 25-BCA101-M1X CAP. ELEC 100 UF 16V +/-20% 1 C930 25-BCA101-M1X CAP. ELEC 100 UF 16V +/-20% 1 C930A 25-BCA101-M1X CAP.
  • Page 21 Item No. Description Quantity Req. Designator Remarks 25-BFB478-M1X CAP. ELEC 0.47 UF 50V +/-20% 1 C246 25-BFB478-M1X CAP. ELEC 0.47 UF 50V +/-20% 1 C248 25-BFB478-M1X CAP. ELEC 0.47 UF 50V +/-20% 1 C918 27-MBC474-J0X CAP. M.P.E 0.47UF 63V +/-5% 1 C211 25-BFB479-M1X CAP.
  • Page 22 Item No. Description Quantity Req. Designator Remarks 41-WJ0175-B00 WIRE BARE JUMPER 17.5MM 1 J105 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 J102 41-WJ0090-B00 WIRE BARE JUMPER 9MM 1 J1110 10-1N4148-ABX DIODE 1N4148 (SWITCHING) 1 R618 18-CB0332-JNX RES. C.F. 3.3k OHM 1/6W +/-5% 1 J219 25-BCB470-M1X CAP.
  • Page 23 Item No. Description Quantity Req. Designator Remarks 41-WJ0075-B00 WIRE BARE JUMPER 7.5MM 1 J924 41-WJ0075-B00 WIRE BARE JUMPER 7.5MM 1 J925 41-WJ0140-B00 WIRE BARE JUMPER 14MM 1 J207 41-WJ0090-B00 WIRE BARE JUMPER 9MM 1 J015A 41-WJ0085-B00 WIRE BARE JUMPER 8.5MM 1 J415 41-WJ0075-B00 WIRE BARE JUMPER 7.5MM...
  • Page 24 Item No. Description Quantity Req. Designator Remarks 18-CB0223-JNX RES. C.F. 22k OHM 1/6W +/-5% 1 R208A 18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 1 R208 18-CB0820-JNX RES. C.F. 82 OHM 1/6W +/-5% 1 R901 26-EBP101-JCX CAP. CER 100PF 50V +/-5% CH 1 C240 26-EBP471-JCX CAP.
  • Page 25 Item No. Description Quantity Req. Designator Remarks 62-388180-0HA POWER SW.ADAPTER 63-B30100-BT4 S/T SCREW B 3 X 10 BT FOR POWER SWITCH TO F.CAB 46-30991H-02X HS UL1672 2P22 200 TJC1-2Y 1 S801A 40-2922AE-SWB P.C.B. SWITCH BD 48-POW007-XX0 SWITCH POWER KDC-A04 1 SW801 67-395310-0G0 POWER SUPPLY SWITCH STATOR FOR KNOB...
  • Page 26 Item No. Description Quantity Req. Designator Remarks 27-MBC104-J0X CAP. M.P.E 0.1 UF 63V +/-5% 1 C1102 27-MBC104-J0X CAP. M.P.E 0.1 UF 63V +/-5% 1 C1123 27-MBC104-J0X CAP. M.P.E 0.1 UF 63V +/-5% 1 C1106 34-A100K0-1IX COIL CHOKE 10UH +/-10% 1 L1101 35-139730-00X FERR.
  • Page 27 Item No. Description Quantity Req. Designator Remarks 10-HS5V6B-DBX DIODE 500mW 5.6HSB 1 D840 11-C124ES-0BX TRANSISTOR PDTC124ES (NPN) 1 Q834 11-C124ES-0BX TRANSISTOR PDTC124ES (NPN) 1 Q833 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q831 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q832 11-SC2688-LAX TRANSISTOR 2SC2688L (NPN) 1 Q830 11-SK2996-0AX TRANSISTOR 2SK2996 (MOS) 1 Q801...
  • Page 28 Item No. Description Quantity Req. Designator Remarks 26-AGK221-KRX CAP. CER 220 PF 250V +/-10% 1 C830 26-AIM103-KBX CAP. CER 0.01UF 500V +/-10% B 1 C805 26-AIM103-KBX CAP. CER 0.01UF 500V +/-10% B 1 C834 26-AKK221-KRX CAP. CER 220 PF 1KV +/-10% R 1 C833 26-AMK152-KRX CAP.
  • Page 29 Item No. Description Quantity Req. Designator Remarks 41-WJ0150-B00 WIRE BARE JUMPER 15MM 1 J810 41-WJ0150-B00 WIRE BARE JUMPER 15MM 1 J812 41-WJ0175-B00 WIRE BARE JUMPER 17.5MM 1 J807 41-WJ0175-B00 WIRE BARE JUMPER 17.5MM 1 J813 41-WJ0195-B00 WIRE BARE JUMPER 19.5MM 1 J806 46-10962W-02X PIN BASE *2 TJC2-2A...
  • Page 30 Item No. Description Quantity Req. Designator Remarks 10-PC574J-DJX DIODE ZENER UPC 574J 1 D834 71-DYP000-WX1 LABEL 66-343730-0B0 HOLLOW RIVET 1.6X3.0XL3.2 FOR RT801 74-010050-40C POLYBAG FOR POWER (10CMX50CM) 10-D3SB60-H7X DIODE D3SB60 (BRIDGE RECT.) 1 DB801 25-BMJ221-M1X CAP. ELEC 220 UF 400V +/-20% 1 C806 66-382330-0B7 RIVET 2.0X3.7X3.5...
  • Page 31 Item No. Description Quantity Req. Designator Remarks 47-RCA002-XX0 RCA SOCKET AV-8.4-6 (WHITE) 1 P1305 47-RCA002-XX0 RCA SOCKET AV-8.4-6 (WHITE) 1 P1308 47-RCA003-XX0 RCA SOCKET AV-8.4-6 (YELLOW) 1 P1304 47-RCA003-XX0 RCA SOCKET AV-8.4-6 (YELLOW) 1 P1307 62-2922TB-0HN REAR AV BRACKET 63-B30100-AB4 S/T SCREW B 3 X 10 AB FOR AV PCB TO JACK PLATE MTG 66-388280-0B0...
  • Page 32 TCLM113 chassis alignment instruction Enter factory mode in production line Simply press the D-mode key on the factory remote handset. Enter service mode Press and hold the VOLUME DOWN key tightly on the unit until minimum level and don’t release the VOLUMN DOWN key, then press the DISPLAY key on the remote handset.
  • Page 33 Vertical HITS(14) Input a NTSC Adjust HITS for vertical amplitude. geometry for VP60(00) cross hatch Adjust VP60 for vertical position. NTSC system VLIS(02) pattern. Adjust VLINS for vertical linearity. (Key 1) VSS(02) Adjust VSS for vertical S-correction VBLK(00) (normally use default value) VCEN(11) (normally use default value) OSDHS(1D)
  • Page 34 Key 5 ST3 (20) ---------- (all use default value) (sharpness SV3 (20) adjustment) ST4 (20) SV4 (20) SVD(15) ASSH(04) SHPX (3F) SHPN (1A) Key 7 RFAGC (26) Receive a 60dB Adjust RFAGC until the picture noises (Status SBY (0A) grey scale + disappear exactly.
  • Page 35 Key game OSD1(30) ---------- (all use default value) (other OSDF1(66) adjustment) OSD2(48) OSDF2(75) HAFC(09) NOIS(01) UCOM(00) Key 0 R CUT (80) Black and white 1. Measure the dark side of the picture with (White G CUT (80) pattern (PAL) a color analyzer and set RCUT to 80. balance B CUT (80) Then adjust BCUT and GCUT until the...
  • Page 36 Ｍ１１３　Ｂｌｏｃｋ　Ｄｉａｇｒａｍ 　　　　　　　　　 S-INPUT AV INPUT (1CH) (3CH) M62438FP（SRS） Rch UHF/VHF AV SWITCH BBE/SRS A-PRO AUDIO VS TUNER 2*4052 NJM2150 Njw1136 POWER AMP TDA8894 NICAM TDA9874 AUDIO POWER AMP N0 NICAM TDA8895 WOOFER CBUS LINE EEPROM 8K Bit TMPA8809 TMPA8809 TMPA8809 TMPA8809/8827CPN /8827CPN /8827CPN...