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Gold Vision GV-1418 Service Manual

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GOLD VISION

SERVICE MANUAL

1. Caution.....................................................................2
2. Specification...............................................................6
3. BOM List ..................................................................13
4. Alignment Procedure....................................................35
5. Block Diagram............................................................41
6. Schematic Diagram......................................................42
7. PCB Layout................................................................43
8. Exploded View Diagram ................................................44
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.
GV-1418

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Summary of Contents for Gold Vision GV-1418

  • Page 1: Service Manual

    GOLD VISION SERVICE MANUAL GV-1418 1. Caution……………………………………………………………2 2. Specification………………………………………………………6 3. BOM List …………………………………………………………13 4. Alignment Procedure………………………………………….…35 5. Block Diagram……………………………………………………41 6. Schematic Diagram………………………………………………42 7. PCB Layout………….……………………………………………43 8. Exploded View Diagram …………………………………………44 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: If The Set Does Not Operate Properly

    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: Product Specification

    PRODUCT SPECIFICATION MODEL： ： ： ： GV-1418 AMBIENT CONDITIONS： ： ： ： AMBIENT TEMPERATURE： ： ： ： OPERATING： ： ： ： -10° ° ° ° C ~ +40° ° ° ° C STORAGE： ： ： ： -15° ° ° ° C ~ +45° ° ° ° C HUMIDITY OPERATING：＜...
  • Page 7 A: GENERAL SPECIFICATION: 1: CRT 37cm(14”) 51cm (20”) 54cm(21”) 64cm (25”) 74cm (29”) 84cm (34”) OTHER 2: CHASSIS: DIGITAL NICAM STEREO ANALOG SURROUND SOUND TELETEXT GERMAN STEREO S.VHS OTHER 3: CPU: TSB M5C01 TSB M5C03 TSB M5ENG TSB M6/M6A TSB M7/M7A TSB M8A TSB M8B TSB CTS-654A...
  • Page 8 CH2--CHS20（CABLE BAND） CH2--CH13（USA BAND） CH21--CH69（CABLE BAND） CH14--CH83（USA BAND） CHR1--CHR12（OIRT） CH1--CH12/CH13-CH57（CHINA BAND） OTHER CATV 470MHz 6： SCANNING LINES AND FREQUENCIES 625 LINES 15.625kHz 50Hz 525 LINES 15.75kHz 60Hz 525/625 LINES 15.625kHz /15.75kHz 50/60Hz 7： COLOUR SUB-CARRIER 4.433MHz 3.579MHz 3.58MHz 8： INTERMEDIATE FREQUENCIES PICTURE 39.5MHz SOUND 6.0MHz PICTURE 38.9MHz...
  • Page 9 11： AUDIO OUTPUT POWER (7％THD) 13”& 14”---1W 20”& 21”---2W 20”& 21”---2W + 2W (R + L) 25”---4W + 4W (R + L) 29”---6W + 6W (R + L) 34”---8W + 8W(R + L) OTHER 14”>=2W+2W 12： AERIAL INPUT IMPEDANCE 75 Ω UNBALANCED DIN JACK ANT.INPUT75 75Ω...
  • Page 10 VOLTAGE SYNTHESIZER (V.S.) PLL FREQUENCY SYNTHESIZER (F.S.) 2： PRESETTABLE PROGRAM 50 PROGRAMS 99 PROGRAMS 100 PROGRAMS 181 PROGRAMS OTHER 3： TUNING FOR VHF AND UHF BANDS AUTO SEARCH MANUAL TUNING FINE TUNING 4： PICTURE AND SOUND ADJUSTMENT BRIGHT，CONTRAST，COLOUR AND VOLUME CONTROL TINT CONTROL(NTSC) TREBLE，BASS，BALANCE CONTROL SHARPNESS CONTROL...
  • Page 11 9： FULL FUNCTION INFRARED REMOTE CONTROL P/N OF REMOTE CONTROL INLAY : 58-HS46F0-YUI 10： REMOTE EFFECTIVE DISTANCE 8 m C： CONSTRUCTION OF FRONT PANEL MAIN POWER SWITCH FUNCTION SELECT REMOTE SENSOR MENU SELECT SYSTEM FUNCTION S.VHS INPUT MICROPHONE INPUT TV/AV SELECT STANDBY INDICATOR PROGRAM VOLUME UP/DOMN BAND SELECT...
  • Page 12 RCA SOCKET SCART SOCKET(AV) SCART SOCKET (FULL) SPECIFICATION SCART VIDEO INPUT 75Ω 0.5V 0.5V AUDIO INPUT 10kΩ (R+L) VIDEO OUTPUT 75Ω 0.5V 0.5V AUDIO OUTPUT 1kΩ (R+L) 0.7V RGB INTPUT 75Ω AUDIO LINE OUTPUT 1kΩ F： OTHERS INFORMATION 1.FLYBACK： 37-BSC250-231 2.TUNER：...
  • Page 13 Parent Item No. Item No. Description Quantity Req. Designator Remarks 03-1418MU-MR35 08-01418U-FCN ASS'Y - FRONT CABINET 08-01418U-FCN 02-GND014-XX0 ASS'Y - CRT GND WIRE&HOUSE 08-01418U-FCN 36-200580-019 DEGAUSSING COIL JXC-40-1080-14 08-01418U-FCN 42-50916D-XX0 SPEAKER 16 OHM 5W (50mmX90mm) 1 W601 08-01418U-FCN 42-50916D-XX0 SPEAKER 16 OHM 5W (50mmX90mm) 1 W602 08-01418U-FCN 44-14OFLN-IR1A...
  • Page 14 03-1418MU-MR35 08-01436U-CRY ASS'Y - CRT BD 08-01436U-CRY 10-1N4148-ABX DIODE 1N4148 (SWITCHING) 1 D501 08-01436U-CRY 10-1N4148-ABX DIODE 1N4148 (SWITCHING) 1 D502 08-01436U-CRY 11-SC2482-0BX TRANSISTOR 2SC2482 1 Q501 08-01436U-CRY 11-SC2482-0BX TRANSISTOR 2SC2482 1 Q503 08-01436U-CRY 11-SC2482-0BX TRANSISTOR 2SC2482 1 Q505 08-01436U-CRY 11-A562TM-0BX TRANSISTOR 2SA562TM-0 1 Q507 08-01436U-CRY...
  • Page 15 08-01436U-CRY 41-WJ0050-B00 WIRE BARE JUMPER 5MM 1 L504 08-01436U-CRY 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 R507 08-01436U-CRY 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 R504 08-01436U-CRY 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 R512 08-01436U-CRY 41-WJ0060-B00 WIRE BARE JUMPER 6mm 1 J501 08-01436U-CRY 46-10967W-01X PIN BASE *1 TJC1-1A...
  • Page 16 08-1418MU-MA10 10-0FR104-FBX DIODE FR104 1 D401 08-1418MU-MA10 10-0FR104-FBX DIODE FR104 1 D403 08-1418MU-MA10 10-0FR104-FBX DIODE FR104 1 D402 08-1418MU-MA10 10-1N4001-EBX DIODE 1N4001 (RECTIFIER) 1 D301 08-1418MU-MA10 10-1N4002-EBX DIODE 1N4002 (RECTIFIER) 1 D411 08-1418MU-MA10 10-1N4148-ABX DIODE 1N4148 (SWITCHING) 1 D206 08-1418MU-MA10 10-1N4148-ABX DIODE 1N4148 (SWITCHING) 1 D206A...
  • Page 17 08-1418MU-MA10 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q901 08-1418MU-MA10 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q902 08-1418MU-MA10 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q903 08-1418MU-MA10 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q905 08-1418MU-MA10 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q904 08-1418MU-MA10 11-SC1815-YBX TRANSISTOR 2SC1815Y 1 Q208 08-1418MU-MA10 11-SC2482-0BX TRANSISTOR 2SC2482 1 Q401 08-1418MU-MA10 11-SC3779-DBX...
  • Page 18 08-1418MU-MA10 18-CB0102-JNX RES. C.F. 1K OHM 1/6W +/-5% 1 R912 08-1418MU-MA10 18-CB0102-JNX RES. C.F. 1K OHM 1/6W +/-5% 1 R208 08-1418MU-MA10 18-CB0102-JNX RES. C.F. 1K OHM 1/6W +/-5% 1 R905 08-1418MU-MA10 18-CB0102-JNX RES. C.F. 1K OHM 1/6W +/-5% 1 R907 08-1418MU-MA10 18-CB0102-JNX RES.
  • Page 19 08-1418MU-MA10 18-CB0182-JNX RES. C.F. 1.8K OHM 1/6W +/-5% 1 R642 08-1418MU-MA10 18-CB0182-JNX RES. C.F. 1.8K OHM 1/6W +/-5% 1 R032 08-1418MU-MA10 18-CB0183-JNX RES. C.F. 18K OHM 1/6W +/-5% 1 R922A 08-1418MU-MA10 18-CB0220-JNX RES. C.F. 22 OHM 1/6W +/-5% 1 R901 08-1418MU-MA10 18-CB0221-JNX RES.
  • Page 20 08-1418MU-MA10 18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 1 R110 08-1418MU-MA10 18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 1 R908 08-1418MU-MA10 18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 1 R906 08-1418MU-MA10 18-CB0471-JNX RES. C.F. 470 OHM 1/6W +/-5% 1 R923 08-1418MU-MA10 18-CB0471-JNX RES.
  • Page 21 08-1418MU-MA10 18-CD0331-JNX RES. C.F. 330 OHM 1/4W +/-5% 1 R615 08-1418MU-MA10 18-CE0109-JNX RES. C.F. 1 OHM 1/2W +/-5% 1 R303 08-1418MU-MA10 18-CE0121-JNX RES. C.F. 120 OHM 1/2W +/-5% 1 R221 08-1418MU-MA10 18-CE0152-JNX RES. C.F. 1.5K OHM 1/2W +/-5% 1 R312A 08-1418MU-MA10 18-CE0331-JNX RES.
  • Page 22 08-1418MU-MA10 25-BCB221-M1X CAP. ELEC 220 UF 16V +/-20% 1 C609 08-1418MU-MA10 25-BCB470-M1X CAP. ELEC 47 UF 16V +/-20% 1 C015 08-1418MU-MA10 25-BCB470-M1X CAP. ELEC 47 UF 16V +/-20% 1 C028 08-1418MU-MA10 25-BCB470-M1X CAP. ELEC 47 UF 16V +/-20% 1 C202 08-1418MU-MA10 25-BCB470-M1X CAP.
  • Page 23 08-1418MU-MA10 26-AIC391-KBX CAP. CER 390 PF 500V +/-10% B 1 C412 08-1418MU-MA10 26-AIC391-KBX CAP. CER 390 PF 500V +/-10% B 1 C414 08-1418MU-MA10 26-AMK331-JZX CAP. CER 330 PF 2KV +/-5% SL 1 C406A 08-1418MU-MA10 26-EBP100-JCX CAP. CER 10PF 50V +/-5% CH 1 R202 08-1418MU-MA10 26-EBP101-JCX...
  • Page 24 08-1418MU-MA10 26-EBP103-ZFX CAP. CER 0.01UF 50V +80/-20% F 1 C902 08-1418MU-MA10 26-EBP103-ZFX CAP. CER 0.01UF 50V +80/-20% F 1 C204 08-1418MU-MA10 26-EBP104-ZFX CAP. CER 0.1UF 50V +80%/-20% 1 C036 08-1418MU-MA10 26-EBP104-ZFX CAP. CER 0.1UF 50V +80%/-20% 1 C214 08-1418MU-MA10 26-EBP104-ZFX CAP.
  • Page 25 08-1418MU-MA10 27-PBC392-J0X CAP. P.E 0.0039UF 63V +/-5% 1 C601 08-1418MU-MA10 27-PBC392-J0X CAP. P.E 0.0039UF 63V +/-5% 1 C603 08-1418MU-MA10 27-PBC472-J0X CAP. P.E 0.0047UF 63V +/-5% 1 C231 08-1418MU-MA10 27-PBC563-J0X CAP. P.E 0.056 UF 63V +/-5% 1 C314 08-1418MU-MA10 27-PBC682-J0X CAP. P.E 0.0068UF 63V +/-5% 1 C422 08-1418MU-MA10 27-RCK333-J0X...
  • Page 26 08-1418MU-MA10 41-WJ0050-B00 WIRE BARE JUMPER 5MM 1 J408 08-1418MU-MA10 41-WJ0050-B00 WIRE BARE JUMPER 5MM 1 J409 08-1418MU-MA10 41-WJ0050-B00 WIRE BARE JUMPER 5MM 1 J410 08-1418MU-MA10 41-WJ0050-B00 WIRE BARE JUMPER 5MM 1 J411 08-1418MU-MA10 41-WJ0050-B00 WIRE BARE JUMPER 5MM 1 J412 08-1418MU-MA10 41-WJ0050-B00 WIRE BARE JUMPER 5MM...
  • Page 27 08-1418MU-MA10 41-WJ0065-B00 WIRE BARE JUMPER 6.5MM 1 J113 08-1418MU-MA10 41-WJ0070-B00 WIRE BARE JUMPER 7MM 1 J101 08-1418MU-MA10 41-WJ0070-B00 WIRE BARE JUMPER 7MM 1 J109 08-1418MU-MA10 41-WJ0070-B00 WIRE BARE JUMPER 7MM 1 J233 08-1418MU-MA10 41-WJ0070-B00 WIRE BARE JUMPER 7MM 1 J917 08-1418MU-MA10 41-WJ0075-B00 WIRE BARE JUMPER 7.5MM...
  • Page 28 08-1418MU-MA10 41-WJ0085-B00 WIRE BARE JUMPER 8.5MM 1 J002 08-1418MU-MA10 41-WJ0085-B00 WIRE BARE JUMPER 8.5MM 1 J204 08-1418MU-MA10 41-WJ0085-B00 WIRE BARE JUMPER 8.5MM 1 J237 08-1418MU-MA10 41-WJ0090-B00 WIRE BARE JUMPER 9MM 1 J404 08-1418MU-MA10 41-WJ0090-B00 WIRE BARE JUMPER 9MM 1 J905 08-1418MU-MA10 41-WJ0090-B00 WIRE BARE JUMPER 9MM...
  • Page 29 08-1418MU-MA10 41-WJ0125-B00 WIRE BARE JUMPER 12.5MM 1 J302 08-1418MU-MA10 41-WJ0125-B00 WIRE BARE JUMPER 12.5MM 1 J401 08-1418MU-MA10 41-WJ0125-B00 WIRE BARE JUMPER 12.5MM 1 R310 08-1418MU-MA10 41-WJ0125-B00 WIRE BARE JUMPER 12.5MM 1 J617 08-1418MU-MA10 41-WJ0130-B00 WIRE BARE JUMPER 13MM 1 J621 08-1418MU-MA10 41-WJ0130-B00 WIRE BARE JUMPER 13MM...
  • Page 30 08-1418MU-MA10 41-WJ0180-B00 WIRE BARE JUMPER 18MM 1 J219 08-1418MU-MA10 41-WJ0190-B00 WIRE BARE JUMPER 19MM 1 J222 08-1418MU-MA10 41-WJ0190-B00 WIRE BARE JUMPER 19MM 1 J403 08-1418MU-MA10 41-WJ0200-B00 WIRE BARE JUMPER 20MM 1 J250 08-1418MU-MA10 45-COS503-KY0 CER. RESONATOR ZTB503F2 1 X205 08-1418MU-MA10 45-FIL6M0-0Y1 CER.
  • Page 31 08-1418MU-MA10 67-H10918-4M2 HEAT SINK FOR IC402 08-1418MU-MA10 67-H24249-2M2 HEAT SINK FOR IC401 08-1418MU-MA10 67-H30752-1A0 HEAT SINK FOR IC301 & Q402 08-1418MU-MA10 67-H34423-8A0 HEAT SINK A=60mm FOR IC601 03-1418MU-MR35 08-1418MU-PA8 ASS'Y - PACKING 08-1418MU-PA8 72-1418MU-X35 OPERATION MANUAL 08-1418MU-PA8 74-022032-6WE POLYBAG (22cmX32cmX0.06mm) FOR OPERATION MANUAL 08-1418MU-PA8 74-081081-80HAA...
  • Page 32 08-01436U-PWY 18-CD0101-JNX RES. C.F. 100 OHM 1/4W +/-5% 1 R808 08-01436U-PWY 18-CD0153-JNX RES. C.F. 15K OHM 1/4W +/-5% 1 R811 08-01436U-PWY 18-CD0470-JNX RES. C.F. 47 OHM 1/4W +/-5% 1 R808A 08-01436U-PWY 18-CE0102-JNX RES. C.F. 1K OHM 1/2W +/-5% 1 R808B 08-01436U-PWY 18-EF0228-JGX RES.
  • Page 33 08-01436U-PWY 34-R101K2-1BX COIL CHOKE 100 UH +/-10% 1 L804 08-01436U-PWY 35-139730-00X FERR. BEAD BF60 FOR L801 08-01436U-PWY 35-139730-00X FERR. BEAD BF60 FOR D831 (L810 & L811) 08-01436U-PWY 35-139730-00X FERR. BEAD BF60 FOR D830 (L808 & L809) 08-01436U-PWY 35-237250-00X FERR. BEAD HF70 FOR D824 (L806 &...
  • Page 34 08-01436U-PWY 25-BDA471-M1X CAP. ELEC 470 UF 25V +/-20% 1 C842 08-01436U-PWY 25-BDB470-M1X CAP. ELEC 47 UF 25V +/-20% 1 C816 08-01436U-PWY 50-02000D-1GS FUSE 2.0AT 250VAC 1 F801 08-01436U-PWY 11-SK2996-0AX TRANSISTOR 2SK2996 (MOS) 1 Q801 08-01436U-PWY 11-2SD882-0AX TRANSISTOR 2SD882-P (NPN) 1 Q805 03-1418MU-MR35 08-HS46F0-M17 ASS'Y - IR HANDSET...
  • Page 35 Flowchart chart of alignment procedure for M17 chassis: B+ adjustment VCO & AFT NICAM Electrical RF AGC Alignment Adjustment properties adjustment checking for chassis Sub-brightness White balance Aging Adjustment of Sub-color & Adjustment Adjustment screen voltage Sub-tint and focus adjustment Pincushion and Screen center Screen center...
  • Page 36 Press “4” to enter sharpness setting menu, Item Description Default data SHPTV3 50% sharpness in 3.58 system (TV) SHPAV3 50% sharpness in 3.58 system (AV) SHPTV4 50% sharpness in 4.43 system (TV) SHPAV4 50% sharpness in 4.43 system (AV) SHPX Maximum sharpness SHPN Minimum sharpness...
  • Page 37 Press “0” to enter OSD setting menu, Item Description Default data Horizontal position of OSD TXCX OSD intensity when maximum contrast RGCN OSD intensity when minimum contrast TNTX Maximum tint level TNTN Minimum tint level I) Adjustment of B+ voltage 1.
  • Page 38 V) Adjustment of Sub-contrast, Sub-tint and Sub-colour for NSTC and PAL signal. 1. Enter D-mode, and connect the probe of Oscilloscope to the conjunction between R217 and P201 (B-out). 2. Apply the Grey-scale/Colour-bar (NTSC signal) to the AV input, in STANDARD status. 3.
  • Page 39 IX) Adjustment of Picture Geometry (PAL) 1. Apply the crosshatch pattern (PAL signal) to the RF input, in STANDARD status. 2. Select HPOS50 to adjust the Horizontal center. 3. Select VPOS50 to adjust the Vertical center. 4. Select HIGH50 to adjust the Vertical amplitude. 5.
  • Page 40 System setting of M17 VCDM0 (default value: 68) BIT Item System switch: 0 : normal identify mode 1 : weak signal identify mode White peak suppress: 0: on 1: off ABL gain 00: -0.74v 01: -0.64v 10: -0.37v 11: -0.12v ABL start point 00: -0.01v 01: -0.11v 10: -0.3v 11: -0.45v CW-SW: TB1238N, pin 29 Fsc CW output 0 : AUTO, 1 : 4.43M...
  • Page 41 MODE1 BIT Item Logo: 0: disable 1: TCL Logo No. of channel: 0: 49 1: 99 No use Menu background 0: disable 1: black background No. of AV 0: 1 1: 2 SECAM 0: off 1: on D-mode 0: enable 1: disable No use MODE2 BIT Item...
  • Page 42 M17 Block Diagram By ZSM 2002/8/8 Q801 T802 220V~ D801—D804 IC801 AMP. Transformer Optional Part Q501 Q503 SECAM R/G/B Q505 AMP. R/G/B IC701 TA1275AZ V. AMP. V.out IC301 Tuner IF AMP TB1238 FOCUS TU101 Q101 Z101 IC201 SCREEN H.out H.drive AMP. Q401 Q402 IC001 T402...