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Sanyo CP21AF2T Service Manual

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SERVICE MANUAL Colour Television
Specifications
Power Source . . . . . . . . .AC220-240V, 50/60Hz.
Colour System . . . . . . . .PAL (AV input: PAL/NTSC4.43/NTSC/PAL-60Hz)
Television System . . . . . .B/G
Channel Coverage . . . . .Australia
VHF: 0-11, 5A UHF: 28-69
CATV: S1-S41, X, Y, Z, Z+1, Z+2
New Zealand
VHF: 1-11 UHF: 21-69
CATV: S1-S41, X, Y, Z, Z+1, Z+2
Video IF . . . . . . . . . . . . .38.0MHz
Aerial Input Impedance . . 75Ω
Ext. Terminals
Video inputs: Phono jack
S-Video input
Audio inputs:Phono jack (R/L)
Video monitor outputs: Phono jack
Audio monitor outputs: Phono jack(R/L)
(436mVrms, Impedance less than 600Ω)
Headphone jack: Mini stereo jack
Speakers ......... 5cm
12cm
Sound Output (Music) . . . 3W + 3W
Dimensions
. . . . . . . . . . 587(W)
Weight . . . . . . . . . . . . . .approx. 21.8 Kg
Specifications subject to change without notice
C2GYT
-
+
2 (1.0Vp-p, impedance 75Ω)
1 (Din 4 pin, Separate Y/C Signals Input)
2 (436mVrms, impedance more than 40KΩ)
1 (1.0Vp-p, 75Ω)
1
1
2
458(H)
486(D)mm
P
Product Code: 1 113 514 38
Original Version
Chassis Series: FC1-B
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
differ from the design specifications. Refer
to the specification table.
FILE NO.
Model No. CP21AF2T
(Australia/New Zealand)
Service Ref. No. CP21AF2T-00
TIMER
TV/AV
1
2
3
4
5
6
7
8
9
0
-/--
P
MENU
ZOOM
P
VSM
SWAP
CH SCAN
P
P
TV/TEXT
i
X
?
ASM
SURROUND
A•B
BBE
BASS
JXMLA
SM
REFERENCE NO.
5110153

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Summary of Contents for Sanyo CP21AF2T

  • Page 1 FILE NO. SERVICE MANUAL Colour Television Model No. CP21AF2T (Australia/New Zealand) Service Ref. No. CP21AF2T-00 TIMER TV/AV -/-- MENU ZOOM SWAP CH SCAN TV/TEXT SURROUND A•B BASS JXMLA Specifications Power Source ..AC220-240V, 50/60Hz.

  • Page 2: Table Of Contents

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

  • Page 3: Chassis Block Diagram

    Chassis Block Diagrams (MAIN SIGNAL PROCESSING CIRCUIT)
  • Page 4 Chassis Block Diagrams (SYSTEM CONTROL)

  • Page 5: Ic Block Diagrams

    IC Block Diagrams IC201 < IF/Video/Chroma/Def. > QXXAVB488 AUDIO EXIT AUDIO H OUTPUT AUDIO DIRECT AF DC H-OSC BLACK PEAK B-Y IN R-Y IN SIF IN DEFLECTION HI VCC X TAL 3.58 X TAL 4.43 IF OUT VIDEO VIDEO COLOUR APC IDENT FILTER IF APC KILLER FILTER...
  • Page 6 IC Block Diagrams IC001A < Sound Output > LA4270 IC3501 <BBE> QBA3880AFS LA4270 24 DETL DETR 22 DEFL DEFR Thermal Shutdown Over 21 VCC – Voltage Ripple HI MID 20 VCAL VCAR Filter R-MIX 19 L-MIX R-OUT L-OUT L-IN R-IN APFR –...

  • Page 7: Service Adjustments

    Service Adjustments B-VOLTAGE SUPPLY CHECK MAIN BOARD C641 HORIZONTAL WIDTH ADJUSTMENT FOCUS ADJUSTMENT FOCUS ADJUSTMENT HORIZONTAL WIDTH ADJUSTMENT (1) Receive the monochrome circular pattern. (1) Tune receiver to an active channel. (2) Set the brightness to normal and contrast to maximum. (2) Adjust H-Width Control (VR462) for proper width.

  • 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.
  • Page 9 Service Adjustments with Replacing Memory IC(IC802) [2] Required Service Adjustments Readjust the following service adjustments. Adjustments Service Mode No. & Item Horizontal centre adjustment Item 01, H-P Vertical centre adjustment Item 02, V-P Vertical size adjustment Item 03, V-S RF AGC adjustment Item 05, AGC AFT adjustment Item 06, VCO...
  • Page 10 Service Adjustments with Replacing Memory IC(IC802) [Entering to Service Mode] Press and hold the MENU button on the TV set and press the [1] button on the remote control handset. Following setting items appears on the screen. Display for [H-P] Horizontal centre adjustment Read Status TIMER TV/AV...

  • Page 11: 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 10. Item 01 [H-P] HORIZONTAL CENTRE Item 06 [VCO] AFT (1) Receive the monochrome circular pattern.

  • Page 12: Protection Circuit

    Service Mode Adjustments Items 18-22, 25-26 GREY SCALE (1) Receive the monochrome circular pattern. (2) Set the brightness and colour to normal, contrast to TIMER TV/AV Red Drive - Red Bias + maximum. (3) Enter to the service mode. Red Bias - Red Drive + (4) Select No.

  • Page 13: 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. 1.

  • Page 14: Mechanical Disassemblies

    Mechanical Disassemblies CABINET BACK REMOVAL CHASSIS REMOVAL 1. Refer to Figure 1, remove 8 screws. 1. Remove cabinet back. 2. Pull off cabinet back and remove. 2. Discharge the picture tube anode (2nd anode lead) to the dag coating (picture tube grounding lead). 3.

  • Page 15: Cabinet Parts List

    610 288 4692 ASSY,CABINET FRONT 610 286 5066 CABINET FRONT 610 287 0701 INSTRUCTIONS MANUAL 610 286 5080 DOOR 610 284 7741 DOOR COVER 610 288 4791 DEC SHEET DOOR 645 041 7269 BADGE,SANYO 610 284 7833 SPRING PLATE -15-...

  • Page 16: Chassis Electrical Parts List

    Chassis Electrical Parts List C2GYT 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 17 C2GYT Ref. No. Part No. Description Ref. No. Part No. Description 405 020 7907 TR 2SC945A-RA 407 012 4406 DIODE 1SS133 Q2004 405 011 8401 TR 2SC1740S-Q 407 013 4306 DIODE 1S2076A 405 011 8500 TR 2SC1740S-R 407 013 7109 DIODE 1S2473 405 011 8609 TR 2SC1740S-S...
  • Page 18 C2GYT Ref. No. Part No. Description Ref. No. Part No. Description 405 014 4608 TR 2SC2412K T146 S 405 012 2101 TR 2SC1815-O 405 015 8704 TR 2SC2812-L6-TB 405 012 2309 TR 2SC1815-Y 405 015 8902 TR 2SC2812-L7-TB 405 157 0505 TR 2SC536NF-NPA Q1502 405 134 5905...
  • Page 19 C2GYT Ref. No. Part No. Description Ref. No. Part No. Description 405 015 8704 TR 2SC2812-L6-TB 403 243 6806 MT-COMPO 0.1U J 405 015 8902 TR 2SC2812-L7-TB C1000 403 041 8804 ELECT 10U M Q813 405 014 4509 TR 2SC2412K T146 R C1001 403 041 8804 ELECT...
  • Page 20 C2GYT Ref. No. Part No. Description Ref. No. Part No. Description C223 403 164 0204 CERAMIC 0.1U Z C527 403 049 4204 ELECT 10U M C225 403 049 0008 ELECT 1U M C540 403 085 5906 NP-ELECT 33U M C241 403 047 8402 ELECT 0.1U M...
  • Page 21 C2GYT Ref. No. Part No. Description Ref. No. Part No. Description R009 401 105 0900 MT-GLAZE 120 JA 1/16W R1505 401 105 5400 MT-GLAZE 47K JA 1/16W R011 401 105 5301 MT-GLAZE 4.7K JA 1/16W R1506 401 105 3208 MT-GLAZE 270 JA 1/16W R014 401 105 7305...
  • Page 22 C2GYT Ref. No. Part No. Description Ref. No. Part No. Description R364 401 025 8208 CARBON 22K JA 1/6W R681 401 024 7004 CARBON 1K JA 1/6W R373 401 105 0405 MT-GLAZE 100 JA 1/16W R682 401 025 8703 CARBON 220K JA 1/6W R422...
  • Page 23 C2GYT Ref. No. Part No. Description Ref. No. Part No. Description TRANSFORMER 407 175 2806 ZD 02CZ12Y(TE85R) 407 175 2905 ZD 02CZ12Z(TE85R) T431 610 000 1077 DRIVE TRANS D123 408 008 2406 DIODE 1N4148 610 223 1656 DRIVE TRANS 407 012 4406 DIODE 1SS133 T471 645 038 6770...
  • Page 24 C2GYT Ref. No. Part No. Description Ref. No. Part No. Description D467 408 008 2406 DIODE 1N4148 407 012 4406 DIODE 1SS133 407 012 4406 DIODE 1SS133 407 013 4306 DIODE 1S2076A 407 013 4306 DIODE 1S2076A 407 013 7109 DIODE 1S2473 407 013 7109 DIODE 1S2473...
  • Page 25 C2GYT Ref. No. Part No. Description Ref. No. Part No. Description 645 019 4887 SWITCH,PUSH 1P-1TX1 R722 401 025 7409 CARBON 220 JA 1/6W 645 027 7382 SWITCH,PUSH 1P-1TX1 R723 401 027 2303 CARBON 560 JA 1/6W SW601 645 017 0928 SWITCH,PUSH POWER 2P-2T R724 401 069 8202...
  • Page 26 SANYO Electric Co., Ltd. A14800 /Oct. /’00 /500 SI Printed in Japan...
  • Page 27 Product safety should be considered when a component replacement is made in any F: Mylar film SERVICE ELECTRIC CP21AF2T-00 7. Waveform were taken with PAL colour bar and controls adjusted for normal picture. Waveforms were taken by using a DIODE M, N: Polypropylene area of a receiver.
  • Page 28 Waveforms & Voltages (On the CRT Board) (On the Main Board) (On the Teletext Board) Note: Voltage rating in decoder unit taken using teletext signal. IC201 (IF/VIDEO/CHROMA) Q701 Q702 Q711 Q712 Q721 Q722 Q731 Q732 Q2001 Q2002 Q2003 Q2004 Q2005 Pin-1: GND 602V 1.0V...

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