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Sanyo CE23LC4-C Service Manual
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Sanyo CE23LC4-C Service Manual

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Colour Television
Service Manual
Model CE23LC4-C
Service Ref. No. CE23LC4-C-00
111374310
PRODUCT CODE:
ORIGINAL VERSION:
Please use Schematic Diagram SKP20552
inserted 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
Option settings ............................................................................................................................................3~4
IC descriptions ............................................................................................................................................5~6
Service Data ..............................................................................................................................................7~8
Block Diagram ................................................................................................................................................9
IC Block Diagrams........................................................................................................................................................................10~14
CPU Functions........................................................................................................................................15~19
Cabinet Parts List ........................................................................................................................................20
Cabinet Disassembly ....................................................................................................................................21
Pin description of semiconductors ................................................................................................................22
Part Description and reading of schematic diagram ....................................................................................23
Electric Parts List ....................................................................................................................................24~30
Part No. SKSM0821
UK1-A
Chassis No.
N2RL
SEPTEMBER 2005
23LC4-
CE
C

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Summary of Contents for Sanyo CE23LC4-C

  • Page 1: Table Of Contents

    Colour Television 23LC4- Service Manual Model CE23LC4-C Service Ref. No. CE23LC4-C-00 111374310 PRODUCT CODE: UK1-A ORIGINAL VERSION: Chassis No. Please use Schematic Diagram SKP20552 inserted 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 8.4 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: Option Settings

    Program Name Text no signal Blue Back Digital Mode Scart OPTION MODE FOR CE23LC4-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 4 OPTION SETTINGS N2RL...

  • Page 5: Ic Descriptions

    IC Descriptions for UK1A IC001 This is an LA42052 which is the audio amplifier for the set. It has left and right inputs from the LOC and left and right outputs to the speakers and headphone socket. It also has mute and standby functions which are activated by the LOC as appropriate.
  • Page 6 IC Descriptions for UK1A (continued) IC6603(digital only) This is a Sharp PQ1CZ series chopper regulator which provides the 6V supply for the digital module, hence it is only present on digital sets. The regulator is switched by the POWER 1 control line from the LOC. IC6604 This is a linear voltage regulator providing in this case 8V to supply the picture improvement IC IC2001.
  • Page 7 To enter to the Service Mode + Press and hold the GREEN button on the remote control and then press the P button on the cabinet. To select the service item and change data value + To select the adjustment item, use the P or P button.

  • Page 8: Service Data

    SERVICE DATA Model: N2RL NVM file: N2RL_070405_5C4E Software ver E417 items marked have changed from previous NVM data item value item value item value item value 0 Soft. Version E417 60 MUS 120 9178 CTI-RF 180 CHSE 61 PWLDAC 1 Init TV 121 9178 PK-RF 181 NLEL 2 ISP Mode...

  • Page 9: Block Diagram

    BLOCK DIAGRAM This is a diagram for all models and therefore differs slightly from the actual block diagram. Outline control Lithium SCART 1 SCART 2 N2RL...
  • Page 10 -10- N2SL...
  • Page 11 LOC I series IC201 BLOCK DIAGRAMS -11- N2RL...

  • Page 12: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC001 LA42052 <Audio Output> STAND BY INPUT AMPLIFIER OUTPUT AMPLIFIER IN 1 OUT 1 REFERENCE AMPLIFIER THERMAL PROTECTION CIRCUIT PRE GND POWER OUT 2 IN 2 OUTPUT AMPLIFIER INPUT AMPLIFIER RIPPLE FILTER POP NOISE PREVENTION BLOCK RIPPLE FILTER IC1205 BA7603F -12-...
  • Page 13 IC BLOCK DIAGRAMS IC2001 Sout spectral processing luminance vector processing Yout smart peaking input- luminance output Uout stage processing black stretch stage Vout histogram processing gamma control colour vector processing delay saturation control correction colour supply skin tone correction processing 'ground green enhancement blue stretch...
  • Page 14 IC BLOCK DIAGRAMS IC6600 / IC6605 PQ1CY1032ZP -14- N2SL...

  • Page 15: Cpu Functions

    CPU PORT FUNCTIONS BALL PAD NAME TYPE DESCRIPTION ROW A N / A Not Connected N / A Not Connected VSS_CORE51 Digital Ground Common digital core 1V8 ground N / A Not Connected VSS_CORE5 Digital Ground Common digital core 1V8 ground VSS_CORE4 Digital Ground Common digital core 1V8 ground...
  • Page 16 CPU PORT FUNCTIONS (continued page 2 of 5 ROW D GPIO5 5V TTL General purpose I/O XTAL0 external crystal (scaler) GPIO2/TCK 5V TTL General purpose I/O / test control N / A Not Connected N / A Not Connected VSS_IO3 Digital Ground Digital 3V3 ground used for I/Os N / A...
  • Page 17 CPU PORT FUNCTIONS (continued page 3 of 5) ROW L GPIO6 General purpose I/O VSS_IO31 Digital Ground Digital 3V3 ground used for I/Os VDD_CORE11 Digital Supply Digital 1V8 supply used for core logic PWM0 5 V TTL Pulse width modulated backlight brightness control L 1 1 RSN7 LVDS...
  • Page 18 CPU PORT FUNCTIONS (continued page 4 of 5) ROW U VDD_CORE0 Digital core supply (+1.8 V) VSSA_RGB0 Analog supply ground IN_R Analog Red colour input (scaler) REF_R Reference voltage Red R/PrIN3 3rd R input / PR input INSSW3 3rd RGB / YPRPB insertion input N / A Not Connected N / A...
  • Page 19 CPU PORT FUNCTIONS (continued page 5 of 5) ROW AD 5 V TTL Memory data bus N / A Not Connected 5 V TTL Memory data bus VDD_CORE0 Digital Supply Digital 1V8 supply used for core logic A2/CFG2 5 V TTL Memory address bus, config pins for boot strap A7/FCG7/RSTOUT 5 V TTL...

  • Page 20: Cabinet Parts List

    CABINET PARTS LIST FOR MODELS CE23LC4-C-00 Note: Parts order must contain Service Ref. No., Part No., and descriptions. JXPLA Item Part No. Description Item Part No. Description 665 000 5228 TERMINAL SIDE-N2RK CE23LC4-C-00 665 000 5235 TERMINAL BTM-N2RK CABINET PARTS...

  • Page 21: Cabinet Disassembly

    CABINET DISASSEMBLY CABINET BACK DISASSEMBLY 1. Remove 11 screws(A) for 23” 2. Pull out the cabinet back. -21- N2RL...
  • Page 22 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 -22-...
  • Page 23 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 24 Note: Parts order must contain Service Ref. No., Part No., and descriptions. Description Part No. Ref. No. Chassis construction CE23LC4-C-00 013N2RJ ELECTRICAL PARTS (Page 19) 1AA0B10N134EA ASSY,PWB,SIGNAL,N2RL (Page 19 - 24)
  • Page 25 Description Description Ref. No. Part No. Ref. No. Part No. C1040 403 207 0317 GRM21BF51C105ZA01L PT297 C244 403 164 0214 GRM188F51E104ZA01D PT115 C1041 403 207 0317 GRM21BF51C105ZA01L PT297 C245 403 215 2211 GRM188R71H103KA01D PT115 C1042 403 207 0317 GRM21BF51C105ZA01L PT297 C246 403 269 5916 GRM219R71C224KC01D PT115...
  • Page 26 Ref. No. Part No. Description Ref. No. Part No. Description C4059 403 157 3611 GRM1885C1H101JZ01D PT115 D1202 407 149 0817 DIODE 1SS355-TE-17 C4061 403 073 1210 CERAMIC 0.033U K D121 407 166 1118 DIODE 1SS356-TW11 C4062 403 073 1210 CERAMIC 0.033U K D1231 407 206 5618...
  • Page 27 Ref. No. Part No. Description Part No. Ref. No. Description L702 645 068 9680 LINE FILT DLW31SN601SQ2L R1013 401 105 2716 MT-GLAZE 220 JA 1/16W L703 645 068 9680 LINE FILT DLW31SN601SQ2L R1014 401 105 2815 MT-GLAZE 2.2K JA 1/16W L704 645 068 9680 LINE FILT DLW31SN601SQ2L...
  • Page 28 Description Part No. Ref. No. Part No. Ref. No. Description R135 401 105 4512 MT-GLAZE 390 JA 1/16W R233 401 148 6016 MT-GLAZE 2.2 JA 1/16W R136 401 105 2815 MT-GLAZE 2.2K JA 1/16W R234 401 148 6016 MT-GLAZE 2.2 JA 1/16W R137 401 105 5113 MT-GLAZE...
  • Page 29 Ref. No. Part No. Description Ref. No. Part No. Description R6640 401 105 0712 MT-GLAZE 100K JA 1/16W MISCELLANEOUS R6641 401 105 4215 MT-GLAZE 33K JA 1/16W A101 645 067 0466 TUNER,U/V R6642 401 105 4215 MT-GLAZE 33K JA 1/16W A101-A 610 323 0238 GASKET A-N3AL...
  • Page 30 401 105 0712 MT-GLAZE 100K JA 1/16W R2414 401 151 1817 MT-GLAZE 150 JA 1/2W production. Sanyo reserves the right to modify components R2415 401 151 1817 MT-GLAZE 150 JA 1/2W and procedures in order to comply with their continuous improvement policy.
  • Page 31 -31- N2RL...
  • Page 32 It is Kind(Ceramic) 6. Voltage readings taken a digital voltmeter are from point C, K, B : Ceramic 2SC1740(Q,R,S), 2SC945A(Q,R,P) CE23LC4-C Rated voltage (1,000V) MODEL NUMBER servicing the area, connect an particularly recommended that only F : Mylar film indicated chassis ground.
  • Page 33 WIRING DIAGRAM MENU VOL- VOL+ POS- POS+ POWER_SW SW2957 SW2956 SW2955 SW2954 SW2953 SW2952 SW2951 S10B3530G S10B3530G S10B3530G S10B3530G S10B3530G S10B3530G S10B3530G CONTROL VOL- VOL+ POS- POS+ POWER_SW K29C SW3955 SW3954 SW3953 SW3952 SW3951 R2957 R2956 R2955 R2953 R2952 15/20inch J10EG030G R2954 1/16...
  • Page 34 TO PANEL<15/17/23V> TO PANEL<20V> R705 1/16GZ0C 50/60 R704 1/16GZ0C R706 <J11XB500G> J11XB500G R700 R707 15inch<3.3V> 1/10GZ0.0 1/10GZ0.0 17/23inch<5V> J10B1600G 23inch 17inch PANEL_PWR R6614 R6617 1/8GZ000 R6600 R702 R701 C701 C700 1/8GZ000 20inch<5V> 1/16GJ 1/10GZ0.0 R703 25KZ PANEL_PWR 1/10GZ 0.1GQF K7J_2 R709 R708 R6615...
  • Page 35 S001A S002A S003A S004A SCREW_14 SCREW_14 SCREW_14 SCREW_14 8 9 10 11 12 13 14 8 9 10 11 12 13 14 8 9 10 11 12 13 14 8 9 10 11 12 13 14 SHIELD CASE SHIELD CASE SHIELD CASE SHIELD CASE S001B...
  • Page 36 SIDE - AV K29X K29F J10AV040N J10AV050N R2416 1/10GZ0.0 K29F_4 K29F_1 R2417 1/10GZ0.0 K29X_5 GND1 K29X_1 K29X_3 GND1 SC2401 R2401 R2402 C2401 K2401 1/16 Z30B 1/16 0120G J12B4080N GZ0C GJ75C C2402 V_IN R2403 L2402 R2404 C2403 1/16 L2C4 1/16 CJ100 GJ100KC GJ2.2KC 100KJ...
  • Page 38 Sanyo Industries (UK) Ltd Printed in UK -32- N2RL...

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111374310