Sanyo CP28WF1 Service Manual
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Sanyo CP28WF1 Service Manual

Sanyo CP28WF1 Service Manual

Chassis series fb1-b
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SERVICE MANUAL Colour Television
Specifications
Power Source
. . . . . . . .AC220-240V, 50/60Hz.
Colour System . . . . . . . .PAL, SECAM, NTSC4.43, NTSC, PAL 60Hz
Television System . . . . .B/G, D/KK', I, M/M
Channel Coverage . . . . .VHF: 0-11, 5A
UHF: 28-69
CATV: S1-S41, X, Y, Z, Z+1, Z+2
Video IF . . . . . . . . . . . . . .38.0 MHz
Aerial Input Impedance . 75Ω
Ext. Terminals
AV1 (Rear): CENELEC Standard
Input (Composite video, RGB and audio-L/R)
Output (TV-output with composite video and audio-L/R)
S-Video Input (Din 4 pin, Separated Y/C signals input)
AV2 (Front): Phone jack (Video input and Audio-L/R input)
AV3 (Rear): Phone jack (Video input and Audio-L/R input)
DVD Input (Component Video Jack-Y and Video Jack CB/CR)
Monitor Output: Phone jack (Video monitor output and Audio-L/R monitor
output)
Headphone Jack: Mini Stereo Jack
Speaker . . . . . . . . . . . . . . 5 cm  12 cm  2 pcs.
Sound Output(RMS) . . . . 5W + 5W
Dimensions . . . . . . . . . . . 774 (W)  491 (H)  508 (D)mm
Weight . . . . . . . . . . . . . . . approx. 36.6 Kg
Specifications subject to change without notice
F8WFS
All manuals and user guides at all-guides.com
TV/AV MENU
CH
POWE R
FILE NO.
Model No. CP28WF1
Service Ref. No. CP28WF1-09
Product Code: 111371205
Original Version
Chassis Series: FB1-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 dif-
fer from the design specifications. Refer to
the specification table.
REFERENCE NO.
(Australia)
SM
3010206

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  • Page 1 All manuals and user guides at all-guides.com FILE NO. SERVICE MANUAL Colour Television Model No. CP28WF1 (Australia) Service Ref. No. CP28WF1-09 TV/AV MENU POWE R Product Code: 111371205 Specifications Power Source ..AC220-240V, 50/60Hz.

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com Contents Safety Notice ..........2 Chassis Block Diagram .

  • Page 3: Chassis Block Diagram

    All manuals and user guides at all-guides.com Chassis Block Diagrams IC1401<Woofer Pre-Amp. IC> is not used VIF/SIF INPUT-1 INPUT-2 INPUT-3 MONITOR...

  • Page 4: Ic Block Diagrams

    All manuals and user guides at all-guides.com IC Block Diagrams System Control...
  • Page 5 All manuals and user guides at all-guides.com IC Block Diagrams IC201 < CPU/IF/Video/Chroma/Def.> QXXAVC534C7JAS YUV IN/OUT...
  • Page 6 All manuals and user guides at all-guides.com IC Block Diagrams IC001 < Audio AMP.> TDA8944J VCC1 VCC2 OUT1- IN1- IN1+ OUT1+ N.C. N.C. TDA8944J N.C. OUT2- IN2- IN2+ OUT2+ STANDBY/ MODE MUTE LOGIC kΩ SHORT CIRCUIT TEMPERATURE PROTECTION kΩ GND1 GND2 IC501 <...

  • Page 7: Cpu Port Functions

    All manuals and user guides at all-guides.com CPU Port Functions Pin No. Function Name Function Pin No. Function Name Function VSSP2 Ground DVBO/IFVO/FMRO Digital Video Broadcast output / IF VSSC4 Ground video output / FM radio output VDDC4 Digital supply to SDACs (1.8V) DVBO/FMRO Digital Video Broadcast output / FM radio output...
  • Page 8 All manuals and user guides at all-guides.com CPU Port Functions Pin No. Function Name Function Pin No. Function Name Function 3 rd G input / Y input G/YIN3 P3.3/ADC3 Port 3.3 or ADC3 input 3 rd B input / P VSSC/P Digital ground for µ-Controller core input...

  • Page 9: Option Setting

    All manuals and user guides at all-guides.com Option Setting After replacing the Memory IC (IC802) The memory IC (IC802), stores the option data of TV set and service adjustments data for each circuit, therefore, when the memory IC is replaced, it should be programmed to the following settings and “ SERVICE ADJUSTMENT” on pages 15 to 16.

  • Page 10: Service Adjustments With Replacing Memory Ic(Ic802)

    All manuals and user guides at all-guides.com Service Adjustments with Replacing Memory IC(IC802) Note: The CPU (IC201) 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 11 All manuals and user guides at all-guides.com Service Adjustments with Replacing Memory IC(IC802) 1) To enter to the Service Mode 1. Press and hold the Volume + button on the front of TV set and press the Menu button on the Remote Control. Display for Software Version Information TV/AV MENU...
  • Page 12 All manuals and user guides at all-guides.com 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...
  • Page 13 All manuals and user guides at all-guides.com 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...
  • Page 14 All manuals and user guides at all-guides.com 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...
  • Page 15 All manuals and user guides at all-guides.com 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...

  • Page 16: Dealer Mode

    All manuals and user guides at all-guides.com Dealer Mode Cautions to the dealer!! When the TV will distributed to the market, it should be reset all received channel by following these procedure. 1. Press the TV/AV button on the TV set for a about 2 seconds until “MEMORY CLEAR” is displayed. (displayed in yellow colour) TV/AV MENU...

  • Page 17: Adjustment

    All manuals and user guides at all-guides.com Adjustments IMPORTANT NOTICE Do not attempt to adjust the following service adjustments except when adjustments are required in servicing other- wise it may cause loss of performance and product safety. +B VOLTAGE ADJUSTMENT PCC ADJUSTMENT (1) Connect a DC voltmetre to TP-B and the ground.
  • Page 18 All manuals and user guides at all-guides.com Adjustments OSD POSITIONING ADJUSTMENT HORIZONTAL ADJUSTMENT HORIZONTAL CENTRING ADJUSTMENT (1) Receive circular pattern and set bright and Contrast to (1) Receive circular pattern and set picture mode to “Dynamic”. Dynamic. (2) Enter to the service mode item No. 23 “HOR.SHIFT”. (2) Enter to the service mode and select item No.

  • Page 19: Purity And Convergence Adjustment

    All manuals and user guides at all-guides.com 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: Signals: Use a pattern generator which can output red, Rubber wedge Figure 1 green, blue and white raster and crosshatch...
  • Page 20 All manuals and user guides at all-guides.com Purity and Convergence Adjustment CONVERGENCE ADJUSTMENT Figure 5 FOUR-POLE MAGNET TABS Preparation: After carrying out purity adjustment and SIX-POLE MAGNET TABS before proceeding to convergence adjustment, provisionally insert the rubber wedge so that there is no vertical or ANGLE sideways play in the deflection yoke.

  • Page 21: Mechanical Disassembly

    All manuals and user guides at all-guides.com Mechanical Disassembly CABINET BACK REMOVAL 1. Refer to Figure 1, remove 16 screws. 2. Pull off cabinet back and remove. AV1 IN S-VIDEO AUDIO AUDIO (MONO) VIDEO ANT. 75Ω AV3/DVD MONITOR INPUT Figure 1. Cabinet Back Removal Protection Circuit This TV set has a built-in power supply protection circuit.

  • Page 22: Cabinet Parts List

    CABINET FRONT-A-F8WFS 610 332 7433 DOOR-F8WFS 610 284 7741 DOOR COVER-C2SA 610 332 7464 DEC SHEET DOOR-F8WFS 645 040 4672 BADGE,SANYO*43.5X10L43.5 645 041 7269 BADGE,SANYO*43.5X10L43.5 610 332 7426 CABINET BACK-F8WFS 645 052 2697 ASSY,REMOCON JXMTA 610 297 9879 RC-BATTERY LID-JXMTA...

  • Page 23: Chassis Electrical Parts List

    All manuals and user guides at all-guides.com Chassis Electrical Parts List F8WFS 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 24 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description 4051739813 TR 2SC3928A1R Q203 4051648412 TR KTC3875S-GR-RTK 4051739912 TR 2SC3928A1S 4050144519 TR 2SC2412K T146 R Q006 4051648412 TR KTC3875S-GR-RTK 4050144618 TR 2SC2412K T146 S 4050144519 TR 2SC2412K T146 R 4050158724...
  • Page 25 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description 4051631612 TR 2SC2812N-L6-TB0 4050158922 TR 2SC2812-L7-TB 4051739813 TR 2SC3928A1R 4051631612 TR 2SC2812N-L6-TB0 4051739912 TR 2SC3928A1S 4051739813 TR 2SC3928A1R Q451 4060121408 TR 2SK2010-CTV-YA14 4051739912 TR 2SC3928A1S Q461...
  • Page 26 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description C1004 4031573611 CERAMIC 100P J 4040848905 ELECT 10U M C1005 4040968207 ELECT 47U M 4031957748 ELECT 10U M 4040848202 ELECT 47U M C231 4031552210 CERAMIC...
  • Page 27 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description C294 4033670417 CERAMIC 0.1U K C601 4040725909 MT-POLYEST 0.22U M 250V C295 4011506011 MT-GLAZE 0.000 ZA 1/10W 4040881704 MT-POLYEST 0.22U K 250V 4011057919 MT-GLAZE 0.000 ZA 1/16W...
  • Page 28 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description 4034140414 CERAMIC 470P K 4011052112 MT-GLAZE 18K JA 1/16W C642 4040559801 ELECT 220U M 200V R038 4011505816 MT-GLAZE 100K JA 1/10W C643 4032112532 ELECT 1000U M...
  • Page 29 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description 4011050613 MT-GLAZE 10K JA 1/16W R254 4011506219 MT-GLAZE 1K JA 1/10W R132 4010247440 CARBON 10K JA 1/6W 4011050514 MT-GLAZE 1K JA 1/16W R135 4011622919 MT-GLAZE...
  • Page 30 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description R437 4010247034 CARBON 1K JA 1/6W R646 4010145132 CARBON 15K JA 1/4W R439 4010182751 CARBON 330 JA 1/4W 4010145251 CARBON 15K JA 1/4W 4010182850 CARBON...
  • Page 31 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description R847 4010247034 CARBON 1K JA 1/6W L804 6450082887 INDUCTOR,5.6U K R866 4011505915 MT-GLAZE 10K JA 1/10W DIODE 4011050613 MT-GLAZE 10K JA 1/16W R867 4011505915 MT-GLAZE...
  • Page 32 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description 4070134336 DIODE 1S2076A 4071490817 DIODE 1SS355-TE-17 D466 4070997822 ZENER DIODE MTZJ20A D801 4070124426 DIODE 1SS133 4070551717 ZENER DIODE RD20EB1 D802 4070124426 DIODE 1SS133 D467 4080093204 DIODE 1N4148...
  • Page 33 All manuals and user guides at all-guides.com F8WFS Ref. No. Part No. Description Ref. No. Part No. Description R711 4012562917 MT-GLAZE 150 JA 1/10W R1012 4012562719 MT-GLAZE 75 JA 1/10W 4011051412 MT-GLAZE 150 JA 1/16W 4011134412 MT-GLAZE 75 JA 1/16W R714 4010246730 CARBON...

  • Page 34: Component Locations

    All manuals and user guides at all-guides.com Component Locations Main Board (Parts Side) IC501A IC501 -34-...
  • Page 35 All manuals and user guides at all-guides.com Component Locations CRT Board (Parts Side) K1451 K17J R1466 R1749 C745 IC701-1 C1723 C1719 L1708 R1739 D1455 R1465 R1701 J1707 D1454 D1453 R714 L1707 JW66 D1452 J1455 D712 IC701 R704 C1750 R1735 D702 R724 C1702 C710...
  • Page 36 All manuals and user guides at all-guides.com Component Locations MAIN Board (Solder Side) R1904 D1908 R1905 R1901 R1903 R1908 D1907 R1911 SW1906 SW1905 J1020 R1913 D1905 JP1901 R1902 J1017 D1906 R1912 D1903 R887 SW1904 R1907 SW1903 SW1902 SW1901 A1901 D1902 D1901 D850 R1011...
  • Page 37 All manuals and user guides at all-guides.com Component Locations CRT Board (Solder Side) K1451 K17J R1466 R1749 C745 IC701-1 C1723 L1708 R1739 D1455 R1465 C1719 R1701 J1707 D1453 D1454 R714 JW66 J1455 L1707 D1452 C1705 D712 R704 IC701 C1750 R1735 D702 R724 C1702...

  • Page 38: Voltages And Waveforms Charts

    All manuals and user guides at all-guides.com Voltages and Waveforms Charts Note: Voltages and waveforms were measured with colour bar signal and controls adjusted for normal picture. Main Board Q004 Q006 Q007 Q008 Q1005 Q111 Q112 Q113 Q202 Q203 Q204 Q003 E 5.6V E 1.7V...
  • Page 39 All manuals and user guides at all-guides.com Voltages and Waveforms Charts CRT Board Q1702 Q1706 Q1707 Q1708 Q1712 Q1709 Q1711 3.1V E 0.6V E 10.8V E 10.8V B 141.2V C 19.7V C 19.7V C 10.6V 71.2V C 71.2V B 3.7V B 1.2V B 10.66V E 10.6V...
  • Page 40 All manuals and user guides at all-guides.com SANYO Electric Co., Ltd. Sept. /’06 /30 CPS Printed In Indonesia...
  • Page 41 8. This circuit diagram covers a basic or representative chassis only. W: Wire wounding Rated wattage (1/2W) POSISTER There SERVICE CP28WF1-09 C: Solid RESISTOR may be some components or partial circuit differences between the REF. NO. 12 X 10 =12K actual chassis and the circuit diagram.

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