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Sanyo CE27LC4-C Service Manual
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Sanyo CE27LC4-C Service Manual

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Colour Television
Service Manual
Model CE27LC4-C
Service Ref. No. CE27LC4-C-00
PRODUCT CODE: 111376210
ORIGINAL VERSION: Chassis No. UK2A
Please use Schematic Diagram SKP20535 with
this Service Manual.
Give complete "SERVICE REF. NO." for parts
order or servicing, it is shown on the rating sheet
on the cabinet back of the TV set.
Note
This TV receiver will not work properly in foreign
countries where the television transmission
system and power source differ from the design
specifications. Refer to the specifications for the
design specifications
Contents
Safety precautions/Specifications ..................................................................................................................2
Block diagrams ..............................................................................................................................................3
Cabinet Disassembly ......................................................................................................................................4
Adjustment and Repair Procedures............................................................................................................5~9
CPU Port Functions ......................................................................................................................................10
IC Block Diagrams ..................................................................................................................................11~13
Pin description of semiconductors ................................................................................................................14
Part Description and reading of schematic diagram ....................................................................................15
Cabinet Parts List ........................................................................................................................................16
Electric Parts List ....................................................................................................................................17~26
SKSM0801
N2WL
JUNE 2005
27LC4
CE
-C

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Summary of Contents for Sanyo CE27LC4-C

  • Page 1: Table Of Contents

    Colour Television 27LC4 Service Manual Model CE27LC4-C Service Ref. No. CE27LC4-C-00 PRODUCT CODE: 111376210 ORIGINAL VERSION: Chassis No. UK2A Please use Schematic Diagram SKP20535 with this Service Manual. Give complete "SERVICE REF. NO." for parts order or servicing, it is shown on the rating sheet on the cabinet back of the TV set.
  • Page 2 Weight 14.1 Kg Important recycling information. Your SANYO product is designed and manufactured with high quality materials and components which can be recycled and reused. This symbol means that electrical and electronic equipment, at their end-of-life, should be disposed of separately from your household waste.

  • Page 3: Block Diagrams

    BLOCK DIAGRAM This is a diagram for all models and therefore differs slightly from the actual block diagram. N2WL...

  • Page 4: Cabinet Disassembly

    CABINET DISASSEMBLY CABINET BACK DISASSEMBLY 1. Remove 11 screws marked A for 27” 2. Pull out the cabinet back. N2WL...
  • Page 5 RASTER ROTATION SESA DIGITAL RC LIGHT MONITORING VIDEO MUTE OPTION MODE FOR CE27LC4-C-00 To set the option mode + Highlight the desired option item by using the P or P button . + To switch the option mode, use the Volume - (LEFT) or Volume + (RIGHT) button.
  • Page 6 SERVICE ADJUSTMENTS Note: Some items of the service adjustments for this chassis are controlled by the CPU, IC801, and the adjustments are carried out by using the RC handset. INITIALISATION OF MEMORY IC To initialise the memory IC (IC802), enter the service mode as below, navigate to “EEPROM Reset” and press OK on the remote control.
  • Page 7 Service menu: Video Enter the service adjustment menu as described on the previous page and select “Video” using the P or P buttons and then press the F/OK button to enter. Use the P or P buttons to select the option, then press G2 Alignment Config.
  • Page 8 ADJUSTMENTS IMPORTANT NOTICE Do not attempt to adjust the following service adjustments except when adjustments are required in servicing otherwise it may cause loss of performance and product safety. AGC ADJUSTMENT 1. Select the clearest VHF station 2. Connect a digital voltmeter to test point TP-A and GND 3.

  • Page 9: Cpu Port Functions

    CPU PORT FUNCTIONS IC801 ADDR_8 ADDR_7 ADDR_6 ADDR_5 ADDR_4 CKOUT_SDRAM VDD33_IO PR_R VSS_IO PB_B CKIN_SDRAM GND_REXT ADDR_3 REXT ADDR_2 SHIELD_ADCDAC ADDR_1 GND_ADC ADDR_0 VCC33_ADC ADDR_10 PORTD5/POWER1 ADDR_16 PORTB0/POWER_SW ADDR_15 PORTB1/KEYBOARD NOT_CS_SDRAM PORTB2/SC1_8 NOT_RAS PORTB3/SC2_8 IC801 NOT_CAS PORTB4/SC3_8 RD_NOTWR PORTB5/AGC STV3600BM NOT_BE0 VSS_IO VDD12_CORE...

  • Page 10: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC801 PR_R Build-Up Video Picture NRESET Pipeline Counter Compositor YSI/CTI Saturation Comp. Triple Cursor PB_B HV Filter Pipeline YCRCB[7:0] Plane CLK_DATA SDRAM HSYNC SDIN VSYNC Block EMI4 16/32 ST20 Core PIPIN YCRCB[7:0] Block Move H/V Filter Flash 27 MHz TV Peripherals Time Base...
  • Page 11 IC BLOCK DIAGRAMS IC3451 STV8216T <NICAM & Stereo Sound Decoder> Demodulation udio roein oudeaer oudeaer udio roein Multi-Standard Sound Diital Stereo Demodulator Suooer Diital udio eadone eadone udio roein Matri Mono n udio Matriin oer Sul Manaement IC001 LA4919NE <Audio Output> -11- N2WL...
  • Page 12 BLOCK DIAGRAMS IC2001 -12- N2WL...

  • Page 13: Pin Description Of Semiconductors

    PIN DESCRIPTION OF SEMICONDUCTORS Diode Diode K: Cathode A: Anode Transistor/FET Transistor/FET C: Collector D: Drain B: Base G: Gate Index E: Emitter S: Source C1 C2 C1 C2 (GND) RESET (IN) (OUT) Index Index Index Index Index Index Index Index Index -13-...
  • Page 14 PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM 1. The parts specification of resistors, capacitors and Resistor Reading coils are expressed in designated code. Please Example 1/2 D J 10K B check the parts description by the following code table. Characteristic 2.

  • Page 15: Cabinet Parts List

    CABINET PARTS LIST FOR MODEL CE27LC4-C-00 Note: Parts order must contain Service Ref. No., Part No., and descriptions. 12 x 4 Item Part No. Description Item Part No. Description CABINET PARTS 610 319 4578 CABINET BACK-N2WJ 610 319 4554 CABINET FRONT-N2WJ 645 076 4936 BADGE,SANYO*53.5X12L53.5...

  • Page 16: Part No

    Note: Parts order must contain Service Ref. No., Part No., and descriptions. Description Part No. Ref. No. Chassis construction CE27LC4-C-00 013N2WL ELECTRICAL PARTS (PAGE 16) 1AA0B10N137BA ASSY,PWB,SIGNAL,N2WL (PAGE 16 -22)
  • Page 17 Description Description Ref. No. Part No. Ref. No. Part No. C049 403 155 2319 GRM188R71H472KA01D PT115 C1215 403 323 8815 GRM21BF51C225ZA01K PT115 C050 403 155 2319 GRM188R71H472KA01D PT115 C1218 403 153 9310 GRM1885C1H820JZ01D PT115 C1003 403 157 3611 GRM1885C1H101JZ01D PT115 C122 403 149 9218 GRM188F51H103ZA01D PT115...
  • Page 18 Ref. No. Part No. Description Ref. No. Part No. Description 403 398 4415 25CE10BS D1204 407 149 0817 DIODE 1SS355-TE-17 C3478 403 164 0214 GRM188F51E104ZA01D PT115 D1205 407 206 5618 ZENER D. UDZS-TE-1710B C3481 403 155 4214 GRM1885C1H150JD01D PT115 D1206 407 206 5618 ZENER D.
  • Page 19 Ref. No. Part No. Description Part No. Ref. No. Description 405 015 8724 TR 2SC2812TR 2SC2812-L6-T 405 173 9813 TR 2SC3928A1R 405 015 8922 TR 2SC2812-L7-TA 405 173 9912 TR 2SC3928A1S 405 163 1612 TR 2SC2812TR 2SC2812-L6-T Q1205 406 017 2103 TR BC857B,215 3000/REEL 405 163 1711...
  • Page 20 Part No. Ref. No. Ref. No. Part No. Description Description 405 173 9813 TR 2SC3928A1R R1032 401 105 4116 MT-GLAZE 3.3K JA 1/16W 405 173 9912 TR 2SC3928A1S R1033 401 105 2716 MT-GLAZE 220 JA 1/16W Q6607 406 017 2400 TR BC847B,215 R1034 401 105 2716...
  • Page 21 Ref. No. Part No. Description Ref. No. Part No. Description R124 401 105 8213 MT-GLAZE ERJ 3GEYJ683V R3444 401 105 2716 MT-GLAZE 220 JA 1/16W R125 401 105 7919 MT-GLAZE 0.000 ZA 1/16W R3466 401 105 0415 MT-GLAZE 100 JA 1/16W R1257 401 105 7919 MT-GLAZE...
  • Page 22 Ref. No. Part No. Description Ref. No. Part No. Description JS131 401 105 7919 MT-GLAZE 0.000 ZA 1/16W TH1842 408 052 7204 THERMISTOR TH11-3H103FT JS6603 401 105 7919 MT-GLAZE 0.000 ZA 1/16W X121 421 011 4908 SAW F JS6604 401 105 7919 MT-GLAZE 0.000 ZA 1/16W X122...
  • Page 23 Ref. No. Part No. Ref. No. Part No. Description Description C1673 403 350 5006 ELECT 1000U M D1672 407 149 0817 DIODE 1SS355-TE-17 C1674 403 165 6017 CERAMIC 1000P K D1673 407 078 2616 DIODE RL2Z 403 271 9602 CERAMIC 1000P K D1674 407 149 0817...
  • Page 24 Description Ref. No. Part No. Part No. Ref. No. Description L660 652 000 1749 PIPE CORE R639 401 105 0613 MT-GLAZE 10K JA 1/16W L661 652 000 1749 PIPE CORE R647 401 105 0613 MT-GLAZE 10K JA 1/16W L662 652 000 1749 PIPE CORE R648 401 105 2914...
  • Page 25 Ref. No. Part No. Ref. No. Part No. Description Description C2046 403 169 2817 GRM1885C1H331JD01D PT115 RL680 645 052 5933 RELAY C2047 403 157 3611 GRM1885C1H101JZ01D PT115 RL681 645 028 2713 RELAY C2048 403 157 1914 GRM1885C1H100JZ01 645 030 5597 RELAY C2049 403 157 3611...
  • Page 26 Description Ref. No. Part No. Part No. Ref. No. Description C4508 403 164 0214 GRM188F51E104ZA01D PT115 C827 403 169 2817 GRM1885C1H331JD01D PT115 C4509 403 396 5513 ELECT 470U M C828 403 169 2817 GRM1885C1H331JD01D PT115 C4511 403 164 0214 GRM188F51E104ZA01D PT115 C829 403 169 2817 GRM1885C1H331JD01D PT115...
  • Page 27 Ref. No. Part No. Ref. No. Part No. Description Description L1852 645 018 9326 INDUCTOR,1000 OHM L4110 645 068 9680 LINE FILT DLW31SN601SQ2L L1853 645 018 9326 INDUCTOR,1000 OHM L4111 401 037 5014 MT-GLAZE 0.000 ZA 1/10W L1854 401 105 7919 MT-GLAZE 0.000 ZA 1/16W L4112...
  • Page 28 Description Ref. No. Part No. Part No. Ref. No. Description R4015 401 105 7919 MT-GLAZE 0.000 ZA 1/16W RESISTOR RB2001 645 058 8853 R-NETWORK 33X4 0.063W R4016 401 105 2617 MT-GLAZE ERJ-3GEYJ220V RB2002 645 058 8853 R-NETWORK 33X4 0.063W R4018 401 105 7919 MT-GLAZE 0.000 ZA 1/16W...
  • Page 29 All information in this manual is correct at the start of R835 401 105 0613 MT-GLAZE 10K JA 1/16W production. Sanyo reserves the right to modify R838 401 105 3911 MT-GLAZE 33 JA 1/16W components and procedures in order to comply with...
  • Page 30 -30- N2WL...
  • Page 31 -31- N2WL...
  • Page 32 Sanyo Industries (UK) Ltd Printed in UK -32- N2WL...
  • Page 33 Rated wattage(1/2W) S : Oxide metallized cated chassis ground. Voltage readings taken by using a colour noted. W : Wire wounding CE27LC4-C connect an isolating transformer MODEL NUMBER significance to product safety. It is particular- C : Solid bar signal are with all controls at normal position.
  • Page 34 SCALER INVERTER INVERTER UNIT P=2.0 TOP L659 E_PWM J10AU090N J10AU100N K6F_2 K6F_4 K6E_2 K6E_4 B4Z21B0090N J10AU120N I-PWM D622 R623 P=2.0 TOP BLON P=2.0 TOP K6E_7 K6E_9 LINE-OFF 1/16GZ0C POWER_3 1SS355 L660 C662 J10AU080N R686 B4Z21B 35EM R687 L661 0090N 10002F 1/16 B4Z21 A24V...
  • Page 35 KP2A_1 DM_DATA KP2A_2 DM_CLK KP2A_3 DM_IR TO LCD PANEL TO LCD PANEL L1811 KP2A_4 Q807 L26B0870G R870 <27 INCH> <32 INCH> 1/16GJ L1812 15KC L26B0870G Q805 L1813 KP2A R872 Q801 L1814 L26B0870G 1/16GJ1.5KC R811 J10QF045G 1/16GJ KLP1 KLP2 1/10GZ 10KC J10PJ300G J11B7370G 3V3CPU...