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Toshiba 23HLV87 - 23" LCD TV Circuit Diagrams

Lcd tv/dvd combination
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See also: Owner's Manual
FILE NO. 810-200728GR
REVISED: 01

CIRCUIT DIAGRAMS

LCD TV/DVD COMBINATION
23HLV87
l
The above model is classified as a green product (*1), as indicated by the underlined serial number.
This Service Manual describes replacement parts for the green product. When repairing this green
product, use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), see the next page.
DOCUMENT CREATED IN JAPAN, March, 2007 GREEN

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Summary of Contents for Toshiba 23HLV87 - 23" LCD TV

  • Page 1: Circuit Diagrams

    FILE NO. 810-200728GR REVISED: 01 CIRCUIT DIAGRAMS LCD TV/DVD COMBINATION 23HLV87 The above model is classified as a green product (*1), as indicated by the underlined serial number. This Service Manual describes replacement parts for the green product. When repairing this green product, use the part(s) described in this manual and lead-free solder (*2).
  • Page 2 DVD BLOCK DIAGRAM LCD BLOCK DVD LOADER SL260WRA 3.3V, 1.8V DVD/CDPD DVD_MENU RF_A, B, C, D, E, F DVD_TRIP STB_DVD VIDEO DVD/CD, DVD_LD, CD_LD DVD PB/C DVD PB/Y V1P4/FMO/FOO DVD_RMC TR+/-, F+/- Motor Drive TRO/STBY/DMO SPINDLE/ MPEG/MICON/DSP/RF_AMP SP+/-, SL+/- U202 STEPING/ DVD POWER U101...
  • Page 3 SCALER/LVDS/ADC/JACK/AV SWITCH/STEREO/SOUND AMP BLOCK DIAGRAM T SDA T SCC M_SDA SDRAM DEMUX TUNER M_SCC S5H1409 DTVS205CH201 SDRAM CVBS AV1_S_VIDE_C SDRAM AV1_S_VIDE_Y AV1_CVBS TV VIDEO DECORD AV1_L /ADC/SCALE AV1_R FLASH MSD116L AV2_CVBS AV2_L L OUT L OUT AV2_R AV3_Y AUDIO AMP AUDIO AMP R OUT 4580...
  • Page 4 POWER BLOCK DIAGRAM P O W E R S U P P L Y L C D A P N E L M A I N P C B 5 VA 1 2 VA U 1 0 2 . 5 V H D A M 111 7 - 2 .
  • Page 5 PRINTED CIRCUIT BOARDS MAIN (TOP SIDE) MAIN (BOTTOM SIDE)
  • Page 6 PRINTED CIRCUIT BOARDS OPERATION (TOP SIDE) OPERATION (BOTTOM SIDE) INPUT (TOP SIDE) INPUT (BOTTOM SIDE) REMOCON (TOP SIDE) REMOCON (BOTTOM SIDE)
  • Page 7 PRINTED CIRCUIT BOARDS DECODER (TOP SIDE) DECODER (BOTTOM SIDE)
  • Page 8 PRINTED CIRCUIT BOARDS POWER (TOP SIDE) POWER (BOTTOM SIDE)
  • Page 9 MSD116L SCHEMATIC DIAGRAM (MAIN PCB)
  • Page 10 MSD116L POWER SCHEMATIC DIAGRAM (MAIN PCB)
  • Page 11 SYS POWER SCHEMATIC DIAGRAM (MAIN PCB)
  • Page 12 MCU & RTC SCHEMATIC DIAGRAM (MAIN PCB)
  • Page 13 DEMODULATOR SCHEMATIC DIAGRAM (MAIN PCB) H-10...
  • Page 14 SDRAM SCHEMATIC DIAGRAM (MAIN PCB) H-11 H-12...
  • Page 15 AUDIO SCHEMATIC DIAGRAM (MAIN PCB) H-13 H-14...
  • Page 16 TUNER SCHEMATIC DIAGRAM (MAIN PCB) ) - ( H-15 H-16...
  • Page 17 AV INPUT & OUTPUT SCHEMATIC DIAGRAM (MAIN PCB) H-17 H-18...
  • Page 18 YPBPR & VGA SCHEMATIC DIAGRAM (MAIN PCB) H-19 H-20...
  • Page 19 HDMI SCHEMATIC DIAGRAM (MAIN PCB) 9 J9 J H-21 H-22...
  • Page 20 EXT-MODULE CON SCHEMATIC DIAGRAM (MAIN PCB) H-23 H-24...
  • Page 21 VADDIS & SDRAM FLASH SCHEMATIC DIAGRAM (DECODER PCB) < I / ] : t i : t i < < < H-25 H-26...
  • Page 22 POWER SUPPLY SCHEMATIC DIAGRAM (DECODER PCB) H-27 H-28...
  • Page 23 AV INPUT & OUTPUT SCHEMATIC DIAGRAM (DECODER PCB) H-29 H-30...
  • Page 24 FE REGULATOR SCHEMATIC DIAGRAM (DECODER PCB) & & H-31 H-32...
  • Page 25 PFC SCHEMATIC DIAGRAM (POWER PCB) H-33 H-34...
  • Page 26 PWM SCHEMATIC DIAGRAM (POWER PCB) H-35 H-36...
  • Page 27 INTERCONNECTION DIAGRAM B-ON B-ON B-ADJ B-ADJ AC120~240V 50/60Hz POWER PCB +24V +24V LOAD- +24V +24V LOAD- +24V +24V LOAD+ LOAD+ +24V +24V SLOT IN DVD +24V +24V DRIVE 12V/3V 12V/3V 12V/3V LIMIT LIMIT OPTICAL PICK-UP TRYIN TRYIN VCC_5V VCC_5V ADIN ADIN STBY STBY...
  • Page 28 WAVEFORMS AV SWITCH2 100µs 2.0ms 20ns 2.0V 500mV 1.0V SOUND AMP/HEADPHON AMP MICON 2.0ms 100µs 50ns 500mV 2.0V 500mV SCALER 2.0ms 20µs 20µs 500mV 500mV 500mV TUNER 20µs 20µs 2.0ms 500mV 2.0V 500mV STEREO 2.0ms 20µs 2.0ms 2.0V 500mV 500mV The following waveforms were measured at the point of the corresponding NOTE: balloon number in the schematic diagram.
  • Page 29 WAVEFORMS 5µs 20µs 5µs 500mV 200mV 2.0V LVDS 20µs 10ms 5µs 200mV 100mV 500mV JACK INTERFACE_HDMI IC 1.0ms 20µs 20µs 1.0V 1.0V 200mV 1.0ms 20µs 20µs 1.0V 1.0V 500mV 20µs 10µs 5µs 1.0V 2.0V 500mV The following waveforms were measured at the point of the corresponding NOTE: balloon number in the schematic diagram.
  • Page 30 WAVEFORMS AUDIO/VIDEO MPEG/MICON/DSP 2µs 500µs 10ns 500mV 2.0V 100mV 500µs 500mV 20mV 20ns 10µs 200mV 1.0V 200ns 10µs 1.0V 200mV MEMORY REGULATOR 2 2µs 2.0V 500mV The following waveforms were measured at the point of the corresponding NOTE: balloon number in the schematic diagram.
  • Page 31 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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