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Sanyo C21LB30S Service Manual
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Sanyo C21LB30S Service Manual

Sanyo C21LB30S Service Manual

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SERVICE MANUAL Colour Television
VIDEO L-AUD
IO-R

Specifications

Power Source . . . . . . . . . AC220V, 50Hz / 60Hz
Receiving System . . . . . . PAL (M/M, N/N), NTSC (M/M)
Channel Coverage
Antenna mode VHF: CH02-CH13, UHF: CH14-CH69
CATV mode
VHF band: CH01-CH13, Mid band: CH14-CH22
Super band: CH23-CH36, Hyper band: CH37-CH64
Ultra band: CH65-CH94 and CH100-CH125
Low mid band: CH95-CH99
Input Terminals
AV1 (Video): Phono jack ✕ 1
AV1 (Audio): Phono jack (R/L) ✕ 1 set
AV2 (Video): Phono jack ✕ 1
AV2 (Audio): Phono jack (R/L) ✕ 1 set
Sound Output (RMS) . . . . 3W + 3W
Speakers . . . . . . . . . . . 5cm x 9cm x 2 pcs.
Dimensions . . . . . . . . . 606(W) ✕ 479 (H) ✕ 483(D) mm
Weight . . . . . . . . . . . . . approx.
Specifications subject to change without notice.
BC6E
MENU
CH s
-
t
+
VOLUME
Kg
FILE NO.
Model No. C21LB30S
Service Ref. No. C21LB30S-00
JXMRR
Product Code: 13007304
映像メディア（事）デザイン部
Original Version
Chassis Series: LA6-A
Give complete "SERVICE REF. NO." for
parts order or servicing. It is shown on the
rating plate at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television trans-
mission system and power source differ from
the design specifications. Refer to the speci-
fication table.
(Argentina)

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Summary of Contents for Sanyo C21LB30S

  • Page 1: Specifications

    FILE NO. SERVICE MANUAL Colour Television Model No. C21LB30S (Argentina) Service Ref. No. C21LB30S-00 VIDEO L-AUD IO-R MENU CH s VOLUME JXMRR Specifications Product Code: 13007304 Power Source ..AC220V, 50Hz / 60Hz Receiving System .

  • Page 2: Table Of Contents

    Contents Safety Notice ................2 Chassis Block Diagram .

  • Page 3: Chassis Block Diagram

    Chassis Block Diagrams MAIN SIGNAL PROCESSING CIRCUIT...
  • Page 4 Chassis Block Diagrams POWER SUPPLY IC (STRW6753)

  • Page 5: Ic Block Diagrams

    IC Block Diagrams IC201 < IF/Video/Chroma/Def./CPU > LA76931...
  • Page 6 IC Block Diagrams IC501<Vertical.Output> LA78040 T her mal P r otection A MP P ump S ample application cir cuits L A 78040B /040/041/045 L A 78040B /040/041/045 IC001<AUDIO AMP> LA42032 +V cc +V cc -V cc Vref Vr ef S ample application cir cuits2 L A 78040B /040/041/045 +V cc(24V)
  • Page 7 IC Block Diagrams IC3401 <MTS> CXA2234QP...

  • Page 8: Service Adjustments

    Service Adjustments General This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments. IC802 (EEPROM) Replacement When IC802 (EEPROM) is replaced, IC801 (CPU) will automatically write the initial reference data into IC802 for basic TV operation. However, the bus data should be checked and some bus data should be set up before attempting the service adjustments.
  • Page 9 Service Adjustments On-screen Service Menu Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be checked and be set up or readjusted according to the procedures described in the following pages.
  • Page 10 Service Adjustments Item Initial value Range Description BLKG 00~03 Blk.STR.gain BRTA 00~01 Brt. Abl. Def BRST 00~01 Mid. Stp. Def BRTH 00~07 Bright. Abl. Threshold 00~03 WPL Ope. Point (W/ Defeat) YGAM 00~03 Y Gamma Start PRES 00~03 AV Mode Pre Shoot adj OVERS 00~03 AV Mode Over Shoot adj RFCO...
  • Page 11 Service Adjustments Item Initial value Range Description HL-TON HALF TONE LEVEL AVNCON 00~127 AV CONTRAST(No Signal in AV) AVNBRI 00~127 BRIGHT (No Signal in AV) POMT 00~127 Power Mute Time CHMT 00~31 CH Mute Time SYST 00~255 System N RELAY 00~255 Power relay on time(8msec) 1~63 CAPTION Horizontal Remark Position...

  • Page 12: Important Notice

    Service Adjustments Important Notice: Do not attempt to adjust service adjustments not listed on below otherwise it may cause loss of performance and for correct operation. Item 01 [RFAGC] AGC Item 04 [V-SIZ] VERTICAL SIZE NOTE: Do not attempt this adjustment with weak signal. 1.

  • Page 13: Main Board

    Service Adjustments Items 16-23 GREY SCALE (1) Receive a monochrome circular pattern. (2) Set the brightness and colour to normal, contrast to maximum. (3) Enter to the service mode. (4) Set each value of Item-16 RBIAS, 17 GBIAS, 18 BBIAS mode to 00. Set each value of Item-19 RDRIV, 21 BDRIV mode to 63, 20 GDRIV to 07.
  • Page 14 Service Adjustments Service Adjustment-2 (MTS Adjustment) 1. Enter the Service Menu While pressing the MENU button on the televi- sion, press the Number Key 3 on the remote control unit. The Service Menu now appear. VI DE O L- A U D IO -R INPUT LEVEL HI SEPARATION...
  • Page 15 Service Adjustments SOUND LEVEL ADJUSTMENT 1. Connect a signal to the antenna terminal with audio signal of 1KHz at 100% modulated. 2. Connect a DC Volt-Meter to TP-317 ( pin-38 of IC3401) and the ground. 3. Switch the TV set on, and set the Surround OFF. Press and hold the MENU button on the TV set, and press “3”...
  • Page 16 Service Adjustments 6. Select “HI SEPARATION” by pressing the CHANNEL UP/DOWN button on the remote control or TV set. INPUT LEVEL HI SEPARATION LOW SEPARATION ADJUST: - /+ CHOOSE: ▲▼ EXIT : MENU Minimum leakage TP-318 (L) 7. Adjust the level of 4KHz at TP-318 (pin-39 of IC3401) to become minimum level by pressing the VOLUME (+/-) button on the remote control or TV set.

  • Page 17: Protection Circuit

    Service Adjustments Service Adjustment-4 Protection Circuit This TV set has a built-in power supply protection circuit. FOCUS ADJUSTMENT It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality 1. Receive the monochrome circular pattern. occurs during TV reception, the TV set goes to the stand- 2.

  • Page 18: Purity And Convergence Adjustment

    Purity and Convergence Adjustment CAUTION: The Convergence and Purity adjustments have been made at the factory. Readjustment should be made only after picture tube or deflection yoke replacement, following the steps below: PURITY ADJUSTMENT ward or backward slightly. 1. Demagnetize the picture tube and receiver using an external 8.

  • Page 19: Cabinet Parts List

    Part No. Description 1AA2BUM0274-A BUTTON POWER-C4BE 1S00620 COIL SPRING-D8HA 映像メディア（事）デザイン部 1AA2DEM0199-- DEC IND-C4BA 1AA2BUM0275-- BUTTON UNITED-C4BE 1AA2CAM0294A- CABINET FRONT-C4BE 1AV2BAAS009-- BADGE,SANYO*53.5X12L53.5 1AA2CBM0161-- CABINET BACK-F2GS 1AA4P4S3255-- LABEL RATING-BC6E 1AV0U10B28601 ASSY,REMOCON JXMRR 1AA2RCM0223-- RC-BATTERY LID-JXMRA 1AV4U19B00700 ANTENNA CONVERTER 1AV4U19B00701 ANTENNA CONVERTER 1LG6P1P0190--...

  • Page 20: Chassis Electrical Parts List

    Chassis Electrical Parts List Product safety should be considered when a component replacement is made in any area of a receiver. Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to product safety. It is particularly recommended that only parts specified on the following parts list be used for components replacement pointed out by the mark.
  • Page 21 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description A013 013BC6E ELECTRICAL PARTS DIRECTORY C225 CEXLB1HR47VDN ELECT 0.47 U M 50V L901 1LB4L81B02500 COIL,DEGAUSSING C226 CEXLB1HR47VDN ELECT 0.47 U M 50V L901 1LB4L81B03000 COIL,DEGAUSSING C227 CK1H103KGQBNZ CERAMIC 0.01U K 50V Q901...
  • Page 22 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description C442 CM2E224JAPAQN MT-POLYPRO 0.22U J 250V C620 CEXLB2C101UAN ELECT 100U M 160V C442 CM2E224JAPA0N MT-POLYPRO 0.22U J 250V C622 CK3A102KCRDNN CERAMIC 1000P K C442 CM2E224JBQAQN MT-POLYPRO 0.22U J 250V C623 CEXLB1C222VDN ELECT 2200U M 16V...
  • Page 23 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description D352 DZXLBZA5.1A-N ZENER DIODE MTZJ5.1A D616 DDXLBB035---N DIODE EG01C D357 DDXAAED0434-- DIODE 1N4148 D619 DDXLBB053---G DIODE 1SS35 D357 DDXLBB047---N DIODE 1SS133ST D619 DD1SS355----G DIODE 1SS355-TE-17 D357 DDXLBB054---N DIODE 1N4448 D621...
  • Page 24 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description JP004 RGFR000ZTCANZ MT-GLAZE 0.000 ZA 1/10W R011 RGF3300JTCANZ MT-GLAZE 330 JA 1/10W JP3411 RGFR000ZTCANZ MT-GLAZE 0.000 ZA 1/10W R015 RGF6800JTCANZ MT-GLAZE 680 JA 1/10W JP804 RGFR000ZTCANZ MT-GLAZE 0.000 ZA 1/10W R017 RGF1002JTCANZ MT-GLAZE...
  • Page 25 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description R230 RDD47R0JPAANN CARBON 47 JA 1/6W R506 RDD6801JPAANN CARBON 6.8K JA 1/6W R234 RGF1200JTCANZ MT-GLAZE 120 JA 1/10W R507 RND3301FPAANN MT-FILM 3.3K FA 1/6W R235 RGF1200JTCANZ MT-GLAZE 120 JA 1/10W R508...
  • Page 26 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description R662 RSXLB22R2JYAS OXIDE-MT 2.2JA X161 WFSTSF5235PL- SAW F TSF5235PL R662 RSXLB22R2JZAS OXIDE-MT 2.2JA X211 1AV4V10B2930J OSC,CRYSTAL 4.433619MHZ R662 RS22R20JGDANN OXIDE-MT 2.2 JA X211 1LB4V10B0040N OSC,CRYSTAL 4.433619MHZ R663 RSXLB22R2JXAS OXIDE-MT 2.2JA...
  • Page 27 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description R701 RGF2200JTCANZ MT-GLAZE 220 JA 1/10W R703 RDD4700JPAANN CARBON 470 JA 1/6W R704 RSXLB2123JXAS OXIDE-MT 12KJA 2 W R704 RS21202JGDAGN OXIDE-MT 12K JA R711 RGF2200JTCANZ MT-GLAZE 220 JA 1/10W R713 RDD4700JPAANN...
  • Page 28 Mar./’07 NEWSAN S. A. Una empresa del grupo SANYO Electric Co.
  • Page 29 N: Metalized carbon SERVICE Kind (M.carbon) S: Oxied metalized 8. This circuit diagram covers a basic or representative chassis only. C21LB30S W: Wire wounding Rated wattage (1/2W) There REF. NO. C: Solid may be some components or partial circuit differences between the actual chassis and the circuit diagram.
  • Page 30 Waveforms & Voltages Component Location (On the Main Board) IC001 (AUDIO AMP.) Pin-1 10V 2.9V 0.5V 10.9V 4.8V 4.7V 10 GND 4.7V IC201 (IF/VIDEO/CHROMA/CPU) Pin-1 2.0V 2.4V 3.1V 2.2V 2.3V 2.3V 2.3V 5.0V 2.5V 3.6V 8.3V 2.6V 2.5V 2.4V 2.3V 1.7V 5.1V 20 2.7V...

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