Sanyo LCD-32XH3 Service Manual
Sanyo LCD-32XH3 Service Manual

Sanyo LCD-32XH3 Service Manual

Lcd television

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SERVICE MANUAL LCD Television
Contents
Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chassis Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . 4
IC Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
IC7200 Port Functions . . . . . . . . . . . . . . . . . . . . . 12-14
On-screen Service Menu System . . . . . . . . . . . . . 17-24
Service Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . 25
Mechanical Disassembly . . . . . . . . . . . . . . . . . . . 26-31
Cabinet Parts List . . . . . . . . . . . . . . . . . . . . . . . . . 32-33
Chassis Electrical Parts List . . . . . . . . . . . . . . . . 34-52
N4AV
. . . . . . . . . . . . . . . 15-16
FILE NO.
Model No. LCD-32XH3
Service Ref. No. LCD-32XH3-00
Product Code:113004416
Original Version
Chassis Series: UH1-L
Give complete "SERVICE REF. NO." for parts order or
servicing. It is shown on the rating label at the cabinet
back of the unit.
This T.V. receiver will not work properly in for-
eign countries where the television transmission
system and power source differ from the design
specifications. Refer to the specification table.
(Argentina)
VIDEO MODE
POWER
RECALL DISPLAY MUTE AUDIO MODE
SLEEP
ECO
PIP
CHANGE
MAIN/SUB
IMAGE
BACK
CH
CH
ZOOM SURROUND
BASS SOUND

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Table of Contents
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Summary of Contents for Sanyo LCD-32XH3

  • Page 1: Table Of Contents

    FILE NO. SERVICE MANUAL LCD Television Model No. LCD-32XH3 (Argentina) Service Ref. No. LCD-32XH3-00 VIDEO MODE POWER RECALL DISPLAY MUTE AUDIO MODE SLEEP CHANGE MAIN/SUB IMAGE BACK ZOOM SURROUND BASS SOUND Contents Product Code:113004416 Original Version Safety Notice ....... . 2 Specifications .
  • Page 2: Safety Notice

    Safety Notice Safety Precautions The following precautions must be observed. 1: Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the cabinet or on the chassis. 2: When replacing a chassis in the cabinet, always be certain that all the protective devices are installed properly, such as, control knobs, adjustment covers or shields, barriers, etc..
  • Page 3: Specifications

    Specifications Power Source AC 100 - 240 Volts, 50/60Hz Receiving System PAL-N/N, PAL-M/M, NTSC-M/M Channel Coverage ANTENNA mode VHF: CH02 - CH13 UHF: CH14 - CH69 CATV mode VHF band: CH01-CH13 MID band: CH14-CH22 SUPER band: CH23-CH36 HYPER band: CH37-CH64 ULTRA band: CH65-CH94 and CH100-CH125 Low MID band: CH95-CH99 Aerial Input Impedance 75 Ω...
  • Page 4: Chassis Block Diagrams

    Chassis Block Diagram...
  • Page 5: Ic Block Diagrams

    IC Block Diagrams (On the ASSY, PWB, MAIN) IC003 < Sync. Separation> LA7217M-T IC101 < AUDIO AMP. > LA4919N-E Headphone Block HP IN1 HP OUT1 VG=6dB Voltage Ripple filter Regulator HP IN2 HP OUT2 VG=6dB H/P Standby SW HP D.C POWER GND Output amplifier...
  • Page 6 IC Block Diagrams (On the ASSY, PWB, MAIN) IC1651 < 1 ch Power Controller by the PWM Switching System > FA7700V-TE1 UVLO VREF 0.3V ON/OFF VREF 2.2V 5.5V S.C.P 1.5V 1.5V BIAS S.C. DET 2.2V Power Good Signal ON/OFF ERROR. AMP.
  • Page 7 IC Block Diagrams (On the ASSY, PWB, MAIN) IC1200 < AV Switch> LA79500E VIDEO BLOCK CLAMP CLAMP CLAMP CLAMP VOUT1 CLAMP 0 or 6dB AMP. CLAMP MUTE VOUT2 0 or 6dB AMP. MUTE VOUT3 0 or 6dB AMP. MUTE CLAMP CLAMP CLAMP CLAMP...
  • Page 8 IC Block Diagrams (On the ASSY, PWB, MAIN) IC1200 < AV Switch> LA79500E AUDIO BLOCK TV1L BIAS TV2L BIAS BIAS BIAS LOUT1 BIAS 0 or 6dB AMP. BIAS MUTE CP5L BIAS CP6L BIAS LOUT2 0 or 6dB AMP. MUTE LOUT3 0 or 6dB AMP.
  • Page 9 IC Block Diagrams (On the ASSY, PWB, MAIN) IC7209 < Stereo D/A Converter > CS4334-KSZ AGND DEM/SCLK LRCK Host Serial Input De-emphasis Voltage Reference Interface Interface SDATA Analog ∆∑ AOUTL Interpolator Low-Pass Modulation Filter Analog ∆∑ AOUTR Interpolator Low-Pass Modulation Filter MCLK...
  • Page 10 IC Block Diagrams (On the ASSY, PWB, POWER) IC601 < Transition-mode PFC Controller > L6562D COMP MULT MULTIPLIER AND THD OPTIMIZER 5µF VOLTAGE OVERVOLTAGE REGULATOR DETECTION UNTERNAL SUPPLY 7V UVLO DRIVER Start stop REF2 ZERO CURRENT DETECTOR 2.1V STARTER 1.6V DISABLE (Zero Current Detector) IC602 MR4010-7101...
  • Page 11 IC Block Diagrams (On the ASSY, PWB, POWER) IC603 < High Voltage Resonant Controller > L6598D H.V. Vboot OP AMP OPOUT BBOTSTRAP DETECTION BOOT DRIVER DRIVER LOAD Ifmin LEVEL DEAD SHIFTER DRIVING TIME Rfmin LOGIC LVG DRIVER Ifstart Vthe1 Rfstart CONTROL Vthe2 LOGIC...
  • Page 12: Ic7200 Port Functions

    IC7200 Port Functions (LCD TV Controller with Dual LVDS Transmitter) MCU Interface Pin No. Pin Name Pin Type Function HWRESET Schmitt Trigger Input w/5V-tolerant Hardware Reset, active high 75-72 DBUS[3:0] I/O w/5V-tolerant MCU 4-bit DDR Direct bus; 4mA driving strength I w/5V-tolerant MCU Bus ALE, active high I w/5V-tolerant...
  • Page 13 IC7200 Port Functions (LCD TV Controller with Dual LVDS Transmitter) Digital Audio Interface Pin No. Pin Name Pin Type Function AUMCK Output Audio Master Clock Output AUSD Output Audio Serial Data Output; 4mA driving strength AUSCK Output Audio Serial Clock Output; 4mA driving strength AUWS Output Word Select Output;...
  • Page 14 IC7200 Port Functions (LCD TV Controller with Dual LVDS Transmitter) DRAM Interface Pin No. Pin Name Pin Type Function MVREF Input Reference Voltage for DDR SDRAM Interface MCLKE Output DRAM Memory Clock Enable MCLKZ Output DRAM Memory Clock Complementary / Input (for differential clocks) MCLK Output DRAM Memory Clock...
  • Page 15: Cpu (Ic8000) Port Functions

    CPU (IC8000) Port Functions System Control (CPU: IC8000) M30624 Pin No. Pin Name Function Description /ANEX1/S /ANEX0/CLK4 /TB4 /DA0/TB3 FANCTR FAN CONTROL /TB1 /TB0 /CLK3 BLKON BYTE This pin selects width of an external databus. This input is ”L” to selected 16-bit width. CNVss This pin input is ”L”...
  • Page 16 CPU (IC8000) Port Functions Pin No. Pin Name Function Description /CS1 MCU Bus ALE output (Active=High) /CS0 DRC_ON BUD3 MCU 4bit DDR Direct bus BUD2 MCU 4bit DDR Direct bus BUD1 MCU 4bit DDR Direct bus BUD0 MCU 4bit DDR Direct bus DVD_SW Vcc2 5V_Standby...
  • Page 17: On-Screen Service Menu System

    On-screen Service Menu System General This set has an On-screen Service Menu System included in the CPU that allows remote operation for most of the service adjustments. On-screen Service Menu System Quick operation is needed to enter Service Mode. How to enter the Service Menu Press and hold the MENU button on top controls.
  • Page 18 On-screen Service Menu System Service Adjustment Data Table Item Item Name Initial Target IC Description Data CTI DELAY-TVPAL-N TVP5147 TV(PAL-N) DELAY CTI CTI DELAY-VideoPAL-N TVP5147 VIDEO(PAL-N) DELAY CTI CTI DELAY-S-PAL-N TVP5147 S-VIDEO(PAL-N) DELAY CTI CTI DELAY-TVN TVP5147 TV (NTSC) DELAY CTI CTI DELAY-VideoN TVP5147 VIDEO (NTSC)DELAY CTI...
  • Page 19 On-screen Service Menu System Item Item Name Initial Target IC Description Data 480i SUB-CONT MST5151A DVD INPUT, Input Video Format: 480i 480i SUB-BRIGHT MST5151A 480i SUB-COLOR MST5151A 480i SUB-TINT MST5151A 480i SUB-SHARP MST5151A 480p SUB-CONT MST5151A DVD INPUT, Input Video Format: 480p 480p SUB-BRIGHT MST5151A 480p SUB-COLOR...
  • Page 20: S(50) Sub-Cont

    On-screen Service Menu System Item Item Name Initial Target IC Description Data S(50) SUB-BRIGHT MST5151A INPUT SWITCH: S-VIDEO (PAL) S(50) SUB-COLOR MST5151A S(50) SUB-TINT MST5151A S(50) SUB-SHARP MST5151A S(60) SUB-CONT MST5151A INPUT SWITCH: S-VIDEO (NTSC) S(60) SUB-BRIGHT MST5151A S(60) SUB-COLOR MST5151A S(60) SUB-TINT MST5151A...
  • Page 21 On-screen Service Menu System Item Item Name Initial Target IC Description Data White-720P G MST5151A DVD INPUT: 720P White-720P B MST5151A Black-720P R MST5151A Black-720P G MST5151A Black-720P B MST5151A White-1080P-50 R MST5151A DVD INPUT: 1080P (50) White-1080P-50 G MST5151A White-1080P-50 B MST5151A Black-1080P-50 R...
  • Page 22 On-screen Service Menu System Item Item Name Initial Target IC Description Data White-RFPAL-N B MST5151A TV INPUT (PAL-N) Black-RFPAL-N R MST5151A Black-RFPAL-N G MST5151A Black-RFPAL-N B MST5151A White-RFN R MST5151A TV INPUT (NTSC) White-RFN G MST5151A White-RFN B MST5151A Black-RFN R MST5151A Black-RFN G MST5151A...
  • Page 23 On-screen Service Menu System Item Item Name Initial Target IC Description Data CORING-TH-2(60) MST5151A NTSC CTI-STEP(60) MST5151A CTI-COEF(60) MST5151A LTI-STEP(60) MST5151A LTI-COEF(60) MST5151A Peak-STEP(60) MST5151A Peak-COEF(60) MST5151A DMP-STEP(DVD) MST5151A DMP-COEF(DVD) MST5151A CORING-TH-1(DVD) MST5151A CORING-TH-2(DVD) MST5151A CTI-STEP(DVD) MST5151A CTI-COEF(DVD) MST5151A LTI-STEP(DVD) MST5151A LTI-COEF(DVD) MST5151A...
  • Page 24 On-screen Service Menu System Item Item Name Initial Target IC Description Data BLUE OFFSET 1080P-60 MST5151A DVD INPUT: 1080p (60) Red Gain 1080P-60 MST5151A Green Gain 1080P-60 MST5151A Blue Gain 1080P-60 MST5151A RED OFFSET 1080P-50 MST5151A DVD INPUT: 1080p (50) 372 GREEN OFFSET 1080P-50 MST5151A BLUE OFFSET 1080P-50...
  • Page 25: Service Adjustments

    Service Adjustments CAUTION ! Do not attempt to adjust service adjustments not listed below otherwise it may cause loss of performance and for correct operation. Setting the Initial data This adjustment is controlled by the CPU (IC8000) through the IIC Bus Data Line in the chassis, and those adjustment data are memorized the memory IC (IC8002).
  • Page 26: Mechanical Disassembly

    ASSY, PWB, KEY Dec. Front Left Top Cover Cabinet Front Button Unit Dec. Front Right LCD Module Speaker Holder ASSY, PWB, POWER SANYO Badge ASSY, PWB, MAIN Terminal Base Cabinet Back Cabinet Back Bottom Stand Rotation Cover Dec. Speaker Cover Stand Back Dec.
  • Page 27: Stand Removal

    Mechanical Disassembly 1. Stand Removal Position TV face down on a padded or cushioned surface to protect the screen and finish. Cushion Remove 3 screws and remove the Shaft Cover. Screws Shaft Cover Remove 9 screws and remove the swivel stand. Screws Swivel Stand -27-...
  • Page 28 Mechanical Disassembly 2. Cabinet Back Removal Remove 3 screws and remove shaft cover. Remove 16 screws and take the Cabinet Back off. Note: Cabinet Back can be removed even if it does not remove a stand. Shaft Cover -28-...
  • Page 29 Mechanical Disassembly 3. Circuit Board Removal Remove 9 screws and take ASSY, PWB, POWER off. Remove 7 screws on the circuit board and 3 screws that are fixing the Terminal Holder. Then take ASSY, PWB, MAIN off with Terminal Holder. ASSY, PWB, POWER ASSY, PWB, MAIN Terminal...
  • Page 30 Mechanical Disassembly Remove 2 screws and take ASSY, PWB, LED off from the Cabinet Front. ASSY, PWB, LED How to Remove Flat Cable There are following kinds of the connectors of flat cable. Be careful not to damage a connector in the case of removal of a flat cable or attachment.
  • Page 31: Lcd Panel Removal

    Mechanical Disassembly 4. LCD Panel Removal Remove 10 screws and take Cabinet Bottom off. Remove 17 screws and take Panel Holder with LCD Panel off from the cabinet front. Remove 4 screws and take LCD Panel off from the Panel Holder. Panel Holder Cabinet Bottom For Gasket...
  • Page 32: Cabinet Parts List

    Part No. Description Key No. Part No. Description 610 332 3466 CABINET FRONT-N4AV 645 092 3920 BADGE,SANYO*43.5X10L43.5 610 332 2735 DEC STAND-N4AV 910 317 2034 PAD RUBBER-N2RA (4 used) 910 328 3600 DEC CABINET FRONT-R-N3TP 910 328 4218 DEC CABINET FRONT-L-N3TP...
  • Page 33 Cabinet Parts List Note: Parts order must contain Service Ref. No., Part No., and descriptions. Key No. Part No. Description Key No. Part No. Description 610 331 3931 COVER TOP-N4BVA 610 331 3801 BUTTON UNIT-N4BVA 610 333 1683 CABINET BACK-N4AV 610 331 8301 CABINET BACK BOTTOM-N4AV 610 331 5393...
  • Page 34: Chassis Electrical Parts List

    N4AV 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 35 N4AV Ref. No. Part No. Description Ref. No. Part No. Description 305 173 9915 TR 2SC3928A1S 305 163 1615 TR 2SC2812N-L6-TB0 Q1203 305 014 4512 TR 2SC2412K T146 R 305 173 9816 TR 2SC3928A1R 305 014 4611 TR 2SC2412K T146 S 305 173 9915 TR 2SC3928A1S 305 015 8727...
  • Page 36 N4AV Ref. No. Part No. Description Ref. No. Part No. Description 305 173 9816 TR 2SC3928A1R 305 173 9816 TR 2SC3928A1R 305 173 9915 TR 2SC3928A1S 305 173 9915 TR 2SC3928A1S Q8000 305 014 4512 TR 2SC2412K T146 R Q8501 305 014 4512 TR 2SC2412K T146 R 305 014 4611...
  • Page 37 N4AV Ref. No. Part No. Description Ref. No. Part No. Description C109 303 403 1319 ELECT 22U M C1233 303 403 0718 ELECT 220U M 303 294 0118 ELECT 22U M 303 373 6314 ELECT 220U M C110 303 299 1615 CERAMIC 1U K C1237...
  • Page 38 N4AV Ref. No. Part No. Description Ref. No. Part No. Description 304 095 0502 CERAMIC 0.1U K 303 322 3913 ELECT 4.7U M C1529 303 298 9612 CERAMIC 0.1U K C162 303 383 1118 ELECT 4.7U M 304 103 4508 CERAMIC 0.1U K 303 322 3913...
  • Page 39 N4AV Ref. No. Part No. Description Ref. No. Part No. Description C191 303 164 0217 CERAMIC 0.1U Z 304 103 4508 CERAMIC 0.1U K 304 094 9803 CERAMIC 0.1U Z 304 095 0502 CERAMIC 0.1U K C192 303 345 6618 CERAMIC 1U M C2231...
  • Page 40 N4AV Ref. No. Part No. Description Ref. No. Part No. Description 303 312 8515 ELECT 100U M 304 095 0502 CERAMIC 0.1U K C236 303 164 0217 CERAMIC 0.1U Z C7218 303 384 1414 ELECT 47U M 304 094 9803 CERAMIC 0.1U Z 303 312 8416...
  • Page 41 N4AV Ref. No. Part No. Description Ref. No. Part No. Description 304 095 0502 CERAMIC 0.1U K C7269 303 298 9612 CERAMIC 0.1U K C7241 303 298 9612 CERAMIC 0.1U K 304 103 4508 CERAMIC 0.1U K 304 103 4508 CERAMIC 0.1U K 304 095 0502...
  • Page 42 N4AV Ref. No. Part No. Description Ref. No. Part No. Description C7316 303 298 9612 CERAMIC 0.1U K 304 103 4508 CERAMIC 0.1U K 304 103 4508 CERAMIC 0.1U K 304 095 0502 CERAMIC 0.1U K 304 095 0502 CERAMIC 0.1U K C8012 304 091 3309...
  • Page 43 N4AV Ref. No. Part No. Description Ref. No. Part No. Description R1031 301 150 6014 MT-GLAZE 0.000 ZA 1/10W R126 301 258 9917 MT-GLAZE 10 JA 1/3W R1033 301 150 6014 MT-GLAZE 0.000 ZA 1/10W R1263 301 260 4115 MT-GLAZE 75 JA 1/3W R1034...
  • Page 44 N4AV Ref. No. Part No. Description Ref. No. Part No. Description R1534 301 162 2219 MT-GLAZE 10 JA 1/10W R2256 301 150 6014 MT-GLAZE 0.000 ZA 1/10W R1535 301 162 2219 MT-GLAZE 10 JA 1/10W R2259 301 150 6014 MT-GLAZE 0.000 ZA 1/10W R1537 301 162 2219...
  • Page 45 N4AV Ref. No. Part No. Description Ref. No. Part No. Description R7240 301 162 2219 MT-GLAZE 10 JA 1/10W R8044 301 150 5918 MT-GLAZE 10K JA 1/10W R7241 301 162 2219 MT-GLAZE 10 JA 1/10W R8045 301 255 6513 MT-GLAZE 100 JA 1/10W R7242 301 162 2219...
  • Page 46 N4AV Ref. No. Part No. Description Ref. No. Part No. Description R8505 301 162 3711 MT-GLAZE 4.7K JA 1/10W L101 945 075 0527 INDUCTOR,180U M R8506 301 162 3711 MT-GLAZE 4.7K JA 1/10W L111 945 036 3895 INDUCTOR,220 OHM R8507 301 162 3711 MT-GLAZE 4.7K JA 1/10W...
  • Page 47 N4AV Ref. No. Part No. Description Ref. No. Part No. Description L7214 945 036 3895 INDUCTOR,220 OHM J1671 301 276 4710 MT-GLAZE 0.000 ZA 1/3W 952 001 6980 INDUCTOR , 220 OHM J1672 301 276 4710 MT-GLAZE 0.000 ZA 1/3W L7217 301 150 6014 MT-GLAZE...
  • Page 48 N4AV Ref. No. Part No. Description Ref. No. Part No. Description 655 001 7109 ASSY,PWB,KEY N4AV 655 001 7116 ASSY,PWB,POWER N4AV 1LG0B10Y007AB 1LG0B10Y0080A CAPACITOR TRANSISTOR C1905 303 164 0217 CERAMIC 0.1U Z Q602 305 167 6111 TR 2SD2226K-T146-V 304 094 9803 CERAMIC 0.1U Z 305 213 2517...
  • Page 49 N4AV Ref. No. Part No. Description Ref. No. Part No. Description 305 015 8727 TR 2SC2812-L6-TB C620 303 247 6627 CERAMIC 680P K 305 015 8925 TR 2SC2812-L7-TB 303 275 8218 CERAMIC 680P K 305 163 1615 TR 2SC2812N-L6-TB0 303 232 2142 CERAMIC 680P K 305 173 9816...
  • Page 50 N4AV Ref. No. Part No. Description Ref. No. Part No. Description 304 086 2102 CERAMIC 470P K 302 093 3303 CARBON 560K JA 1/2W C659 404 110 9401 MT-POLYPRO 0.047U J 800V 302 102 1702 CARBON 560KJA C662 303 224 6111 CERAMIC 0.01U K R611...
  • Page 51 N4AV Ref. No. Part No. Description Ref. No. Part No. Description R646 301 265 3014 MT-GLAZE 560 FA 1/10W 302 088 1406 RESISTER 3.3M JA 1/2W R647 301 287 4914 MT-GLAZE 180K JA R678 302 105 9002 OXIDE-MT 0.68JB R648 301 287 4914 MT-GLAZE 180K JA...
  • Page 52 N4AV Ref. No. Part No. Description Ref. No. Part No. Description JP622 301 150 6014 MT-GLAZE 0.000 ZA 1/10W D606 307 234 8704 PHOTO COUPLE PC123X5YFZ0F JP623 301 150 6014 MT-GLAZE 0.000 ZA 1/10W 307 230 3901 PHOTO COUPLE PC123Y52J00F RL601 945 028 2714 RELAY...
  • Page 53 Nov./2006 NEWSAN S. A. Una empresa del grupo SANYO Electric Co.
  • Page 54: Main Unit

    Allowable error (±5%) N: Metalized carbon SERVICE 7. Parts specified with "X" are not installed in this model. Kind (M.carbon) LCD-32XH3-00 mark. S: Oxied metalized 8. Parts specified with "J" are just jumper wires. W: Wire wounding REF. NO.
  • Page 55 C2286 R2239 CJ22LBZBG 1/10GJ100KC MDQ25 IC7201 TA33 CJ22LBZBG K4D263238G-VC36 C2287 MD25 MDQ25 MD25 MVD25 L7209 L7210 From Power board L26B2770G L26B2770G R7226 SDRAM V1_1_A MDQ25 MVD25 DPU_IN HPLUG C7231 C7212 MDQ25 16KK0.47GQ SC7211 16EM471W 1 V1_1_B C2230 C_6/GPIO Z30B0220G PLUG_DVI 2 V1_1_C 16KK0.1GQ C_7/GPIO...
  • Page 56 TO POWER UNIT (K6Q) K8006 K7208 J10QF085G SCREW <SIDE A> <SIDE B> J1663 P-GND P-GND P-GND (500KHz) J1669 SC03 SC11 R271 X199 P-GND 1/3GZ0 V11B1170G 1GZ0 K1205_GN L26B2890G 8 9 10 11 12 13 14 8 9 10 11 12 13 14 P-GND GND2 L1623...
  • Page 57 TO LCD Module TO LCD MODULE J10AU145N P=2.0 TOP P=2.0 TOP ASSY,PWB,POWER,N4AV P24V (2.5A) 1LG0B10Y0080A R602 L624 J10AU075N R601 1/10GJ10KC STB-CARD STB-CARD B4Z21B0090N STB-5V R603 P-EN P-EN L618 P_24V I_PWM R609 R636 BLON B4Z21B0090N 1/10GZ0C CL657 R631 R6211 Q606 R639 Q603 POW_ON1 R642...

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