Sanyo CP21SA1 Service Manual
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Sanyo CP21SA1 Service Manual

Sanyo CP21SA1 Service Manual

Colour television
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SERVICE MANUAL Colour Television
Specifications
Power Source . . . . . . . . . AC220-240V, 50Hz/60Hz.
Colour System . . . . . . . . PAL (AV input: PAL/NTSC4.43/NTSC/PAL-60Hz)
Television System . . . . . . B/G
Channel Coverage . . . . .Australia
New Zealand
Video IF . . . . . . . . . . . . . . 38.0MHz
Aerial Input Impedance . . 75Ω
Ext. Terminals
Video inputs: Phono jack
Audio inputs: Phono jack
Video monitor outputs: Phono jack
Audio monitor outputs: Phono jack
Sound Output (RMS) . . . . 2 W
Speaker . . . . . . . . . . . . . . ø8 cm
Dimensions . . . . . . . . . . . . 501 (W)
Weight . . . . . . . . . . . . . . . approx. 20.5 Kg
Specifications subject to change without notice.
C5TWG/C5TVG
TV/AV
MENU
-
+
CH
VHF: 0-11, 5A
UHF: 28-69
CATV: S1-S41, X, Y, Z, Z+1, Z+2
VHF: 1-11
UHF: 21-69
CATV: S1-S41, X, Y, Z, Z+1, Z+2
2 (1Vp - p, 75Ω)
2 (436mVrms, more than 40KΩ)
1(1Vp - p, 75Ω)
1(436mVrms, less than 600Ω)
1 pc.
476 (H)
492 (D)mm
FILE NO.
Model No. CP21SA1
(Australia/New Zealand)
Service Ref. No. CP21SA1-55
TV/AV
TIMER
1
2
3
4
5
6
7
8
9
0
-/--
BASS
A B
SURROUND
P
P
P
CH SCAN
P
SWAP
MENU
PIC MODE
JXMYA
Product Code: 111362037
Original Version
Chassis Series: AC5-G
(Software: AC5-G2)
- NOTE -
Service Ref. No. CP21SA1-65 is electrically the
same as Service Ref. No. CP21SA1-55.
The difference between Service Ref. No.
CP21SA1-55 and CP21SA1-65 are as follows:
1) Destination CP21SA1-55...Australia
CP21SA1-65...New Zealand
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
transmission system and power source dif-
fer from the design specifications. Refer to
the specification table.
REFERENCE NO.
(A)
(Australia)
CP21SA1-65
(New Zealand)
SM
5110599

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  • Page 1 VHF: 0-11, 5A (Software: AC5-G2) UHF: 28-69 - NOTE - CATV: S1-S41, X, Y, Z, Z+1, Z+2 Service Ref. No. CP21SA1-65 is electrically the New Zealand same as Service Ref. No. CP21SA1-55. VHF: 1-11 The difference between Service Ref. No.

  • Page 2: Table Of Contents

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

  • Page 3: Chassis Block Diagram

    Chassis Block Diagrams MAIN SIGNAL PROCESSING CIRCUIT Teletext decoder and SECAM decoder are not equipped.

  • Page 4: Chassis Block Diagram

    Chassis Block Diagrams SYSTEM CONTROL...

  • Page 5: Ic Block Diagrams

    IC Block Diagrams IC201 < IF/Video/Chroma/Def. > LA76818A Audio Output SIF Input FM Output/Selected SIF APC Filter Audio Output SIF Output PIF AGC Ext. Audio Input RF AGC Output APC Filter PIF Input1 VCO Coil 1 PIF Input 2 VCO Coil 2 IF Ground VCO Filter IF Vcc...
  • Page 6 IC Block Diagrams IC201 <IF System Block Diagram> LA76818A...

  • Page 7: Service Information

    IC Block Diagrams IC501 < Vertical Output > LA78040/LA78040N Thermal Protection Pump IC001 < Audio AMP.> LA4266 300Ω 30kΩ OUT2 Power Filter Service Information Protection Circuit This TV set has a built-in power supply protection circuit. It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality occurs during TV reception, the TV set goes to the stand-by mode.

  • Page 8: Service Adjustments With Replacing Memory Ic(Ic802)

    Service Adjustments with Replacing Memory IC(IC802) Note: The CPU (IC801) and memory IC (IC802) store the service adjustments data and controls data for each circuit.When the Memory IC(IC802) is replaced, some of the service adjustments should be readjusted to obtain the best performance. The necessary service adjustments are carried out by using the RC handset. Please set up the TV set with following steps [1] to [2].
  • Page 9 Service Adjustments with Replacing Memory IC(IC802) Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. Service mode adjustments table in CPU ROM DATA INITIAL DATA INITIAL ITEM RANGE SETUP DESCRIPTION ITEM RANGE...
  • Page 10 Service Adjustments with Replacing Memory IC(IC802) DATA INITIAL DATA INITIAL ITEM RANGE SETUP DESCRIPTION ITEM RANGE SETUP DESCRIPTION DATA DATA TUNER Tuner Option 0~255 ROM Correction AV123 AV1/AV2/AV3 Option, 0=AV only, 0~255 ROM Correction 1=AV1, AV2, 2~3=AV1, AV2,AV3 0~255 ROM Correction 88 OPT POS Programme number Option, 0~255...

  • Page 11: Service Adjustments With Replacing Memory Ic (Ic802)

    Service Adjustments with Replacing Memory IC(IC802) [Entering to Service Mode] Press and hold the MENU button on the Remote Control and press the VOLUME (+) button on the TV set. Following setting items appears on the screen. MENU Display for [RF AGC] RF AGC adjustment MENU Read Status SI.

  • Page 12: Service Mode Adjustments

    Service Mode Adjustments Following adjustments should be carried out when the memory IC is replaced. How to enter the service mode and adjust values, please refer to “ Entering to Service mode” on page 11. Item 05 [V-SCO] V-S CORRECTION Item 01 [RF AGC] AGC NOTE: Do not attempt this adjustment with weak signal.

  • Page 13: Service Mode Adjustments

    Service Mode Adjustments Items 14-17, 19-21 GREY SCALE (1) Receive the 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-14 RBIAS, 15 GBIAS, 16 BBIAS, 17 RDRIV and 19 BDRIV mode to 64. (5) Select Item-20 mode to be one horizontal scanning line and turn the screen volume on the FBT to obtain just visible one coloured line.

  • Page 14: Service Adjustments

    Service Adjustments Following adjustments are not required to readjust when replacing the memory IC. B-VOLTAGE SUPPLY CHECKING HIGH VOLTAGE CHECK (1) Connect DC meter to TP-B and the ground. Note: +B (+130V) Voltage Check and Grayscale Adjustment (2) Tune the receiver to an active channel and synchro- must be completed before attempting High Voltage Check.

  • Page 15: Special Function

    Special Function The following special functions can be set up on this TV How to set the special function: set. Note: When making the VOLUME LOCK setting, set the (1) Volume Lock setting desired maximum sound volume by pressing the VOLUME + or - button before entering Special Function setting mode.

  • Page 16: 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 8. Tighten the mounting screw of the Deflection Yoke. Adjust 1.

  • Page 17: Cabinet Parts List

    SPRING-E3HA 610 293 3741 DEC IND-C4SA 610 299 0430 BUTTON UNITED-C5TA 610 306 8794 CABINET FRONT-C5TW 645 039 1866 BADGE,SANYO 610 305 4872 CABINET BACK-C5TW 610 313 0262 LABEL RATING-PAL SMALL 610 256 7670 HOLDER AC CORD-SGP-D4VA 645 054 3579...

  • Page 18: Chassis Electrical Parts List

    C5TVG Chassis Electrical Parts List (Service Ref. No.CP21SA1-55 & -65) 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.
  • Page 19 C5TVG Ref. No. Part No. Description Ref. No. Part No. Description 403 042 2405 ELECT 100U M 405 060 0005 TR 2SD1913-S-RA Q681 405 011 8401 TR 2SC1740S-Q RESISTOR 405 011 8500 TR 2SC1740S-R R701 401 105 1402 MT-GLAZE 150 JA 1/16W 405 011 8609 TR 2SC1740S-S R702...
  • Page 20 C5TVG Ref. No. Part No. Description Ref. No. Part No. Description 405 173 9803 TR 2SC3928A1R 403 050 2800 ELECT 22U M 405 173 9902 TR 2SC3928A1S C201 404 084 9803 NP-ELECT 1U M 403 086 2300 NP-ELECT 1U M INTEGRATED CIRCUIT C202 403 058 2604...
  • Page 21 C5TVG Ref. No. Part No. Description Ref. No. Part No. Description C517 404 084 9407 ELECT 220U M C892 403 342 3300 CERAMIC 0.1U K 403 053 2104 ELECT 220U M C893 404 084 9001 ELECT 2.2U M C518 403 072 9405 CERAMIC 3300P K 403 049 9803...
  • Page 22 C5TVG Ref. No. Part No. Description Ref. No. Part No. Description R280 401 024 6700 CARBON 100 JA 1/6W R682 401 025 8208 CARBON 22K JA 1/6W R282 401 105 4106 MT-GLAZE 3.3K JA 1/16W R683 401 105 6100 MT-GLAZE 560K JA 1/16W R284 401 105 4106...
  • Page 23 C5TVG Ref. No. Part No. Description Ref. No. Part No. Description COIL 408 047 8605 ZENER DIODE MTZJ6.8A D485 407 007 7405 DIODE EU1 L171 645 049 3379 TRANS,OSC,38MHZ D512 407 005 8602 DIODE ERA15-02-V1 645 054 0271 TRANS,OSC,38MHZ L234 401 024 9008 CARBON 120 JA...
  • Page 24 SWITCH, POWER 1P-1TX1 X161 421 009 4606 SAW F TSF5419P X211 645 024 8818 OSC,CRYSTAL 4.433619MHZ 652 001 0154 OSC,CRYSTAL 4.433619MHZ X801 645 004 1938 OSC,CRYSTAL 32.768KHZ 645 004 1945 OSC,CRYSTAL 32.768KHZ SANYO Electric Co., Ltd. A14800/Jan./’04/30 BB Printed in Japan...
  • Page 25 N: Metalized carbon 8. This circuit diagram covers a basic or representative chassis only. There Kind (M.carbon) S: Oxied metalized CP21SA1-55 W: Wire wounding Rated wattage (1/2W) POSISTER may be some components or partial circuit differences between the...
  • Page 26 CRT BOARD (Component Location) Waveforms & Voltages (On the Main Board) R713 IC201 (IF/VIDEO/CHROMA) R719 Q701 (B-OUT) R711 Pin-1 2.3V 2.2V 2.7V 3.2V 2.9V 2.9V 5.0V 2.5V L702 Q701A 2.3V 4.3V 4.1V 4.3V 1.6V 1.7V 1.6V 8.3V R712 2.2V 2.1V 2.1V 2.0V 2.2V...

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