Sanyo CP21G1 Service Manual
Sanyo CP21G1 Service Manual

Sanyo CP21G1 Service Manual

Hide thumbs Also See for CP21G1:

Advertisement

Quick Links

SERVICE MANUAL Colour Television
VIDEO
AUDIO
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 ✕ 2 (1Vp - p, 75Ω)
Audio inputs: Phono jack ✕ 2 (436mVrms, more than 40KΩ)
Sound Output (RMS) . . . . 2 W
Speaker . . . . . . . . . . . . . . Diameter 8 cm ✕ 2 pcs.
Dimensions . . . . . . . . . . . 502 (W) ✕ 461.6 (H) ✕ 493.3 (D)mm
Weight . . . . . . . . . . . . . . . approx. 21.5 Kg
Specifications subject to change without notice.
C4MV
TV/AV
MENU
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
FILE NO.
Model No. CP21G1
Service Ref. No. CP21G1-50
TIMER
TV/AV
1
2
3
4
5
6
7
8
9
0
-/--
BASS
A B
SURROUND
PL
P
P
CH SCAN
PM
SWAP
MENU
PIC MODE
JXMYA
Product Code: 111367016
Original Version
Chassis Series: AC5-G
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)
SM
5110541

Advertisement

Table of Contents
loading

Summary of Contents for Sanyo CP21G1

  • Page 1 FILE NO. SERVICE MANUAL Colour Television Model No. CP21G1 (Australia) Service Ref. No. CP21G1-50 TIMER TV/AV -/-- BASS SURROUND CH SCAN SWAP MENU PIC MODE VIDEO AUDIO TV/AV JXMYA MENU Specifications Product Code: 111367016 Power Source ..AC220-240V, 50Hz/60Hz.
  • 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 PIF Input1 APC Filter 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 Filter OUT2 Power Service Information I 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

    610 304 8406 BUTTON POWER-C4EA 610 304 8468 DEC.IND-C4EA 610 304 8413 BUTTON UNITED-C4EA 610 304 8437 CABINET FRONT-C4MA 645 040 4672 BADGE,SANYO*43.5X10L43.5 645 041 7269 BADGE,SANYO*43.5X10L43.5 610 306 8848 CABINET BACK-C4MY 610 311 4682 LABEL RATING-C4MV 645 054 3579 ASSY,REMOCON JXMYA...
  • Page 18: Chassis Electrical Parts List

    C4MV 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.
  • Page 19 C4MV Ref. No. Part No. Description Ref. No. Part No. Description 405 011 8500 TR 2SC1740S-R 409 320 5700 IC UPC78M05AHF 405 011 8609 TR 2SC1740S-S IC801 410 486 2007 IC LC863448W-XXXX-TLM 405 012 2002 TR 2SC1815-GR IC802 410 495 8007 IC AT24C16A-10PI-2.7 405 012 2101 TR 2SC1815-O...
  • Page 20 C4MV Ref. No. Part No. Description Ref. No. Part No. Description C223 403 305 3507 CERAMIC 0.1U Z C613 403 178 9408 POLYESTER 0.012U J C224 403 367 0407 CERAMIC 0.1U K 403 249 8903 MT-COMPO 0.012U J 50V C225 404 084 8806 ELECT 1U M...
  • Page 21 C4MV Ref. No. Part No. Description Ref. No. Part No. Description R112 401 105 6001 MT-GLAZE 5.6K JA 1/16W R512 401 020 0801 CARBON 470 JA 1/4W R114 401 105 4007 MT-GLAZE 330 JA 1/16W R514 401 024 9701 CARBON 12K JA 1/6W R115...
  • Page 22 C4MV Ref. No. Part No. Description Ref. No. Part No. Description R838 401 105 1600 MT-GLAZE 15K JA 1/16W D1002TM 407 063 9603 ZENER DIODE MTZJ9.1A R839 401 105 4007 MT-GLAZE 330 JA 1/16W 407 057 9602 ZENER DIODE RD9.1EB1 R840 401 105 4007 MT-GLAZE...
  • Page 23 C4MV Ref. No. Part No. Description Ref. No. Part No. Description 408 047 8308 ZENER DIODE MTZJ6.2C-52 405 002 0407 TR 2SA1037K T146 S D861 407 055 7907 ZENER DIODE RD3.6EL 405 002 6706 TR 2SA1179-M6-TB 408 041 2005 ZENER DIODE RD3.6EL 405 002 6904 TR 2SA1179-M7-TB 405 173 9605...
  • Page 24 SANYO Electric Co., Ltd. A14800/Oct./’03/30 BB Printed in Japan...
  • Page 25 Kind (M.carbon) S: Oxied metalized W: Wire wounding Rated wattage (1/2W) POSISTER may be some components or partial circuit differences between the SERVICE CP21G1-50 C: Solid RESISTOR actual chassis and the circuit diagram. REF. NO. 12 X 10 =12K 9. Parts specified with "X" are not installed in this model.
  • 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...

Table of Contents