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Hitachi L32R100 Service Manual

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L32S02A
Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury harmful radiation
and materials, various measures are provided in this Hitachi LCD TV.
Be sure to read the cautionary items described in the manual to maintain safety before servicing.
1. Do not attempt to modify this product in any way and never perform customized installations without manu-
facturer's approval. Unauthorized modifications will not only void the warranty, but may lead to your being
liable for any resulting property damage or user injury.
Service work should be performed only after you are thoroughly familiar with all of the following safety che-
2.
cks and servicing guidelines. To do otherwise, increase the risk of potential hazards and injury to the user.
While servicing, use an isolation transformer for protection from A.C. line shock.
3.
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SAFETY NOTICE................................................... 2
PRODUCT SPECIFICATIONS................................ 3
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FUNCTION OVERVIEW....................................... 4-7
*
PCB DIAGRAMS...........................................................8-9
*
BLOCK DIAGRAM......................................... .......10
*
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
May 2008
Caution
Service warning
Contents
LCD Television
Digital Media Systems Group, Hitachi Asia Ltd.
L32S02A, L32A02A,
L32E200, L32R200,
L32E100S,
L32E101B, L32R100
L32A02A
*
SCHEMATIC DIAGRAMS.....................................11-24
IC BLOCK DIAGRAMS..................................... 25-30
*
TROUBLESHOOTING.........................................31-33
*
REPLACEMENT PART LIST.............................................34
*
PART LIST (FOR REFERENCE ONLY)..................35-44
*
No. 0025E
.

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  Summary of Contents for Hitachi L32R100

  • Page 1: Table Of Contents

    Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury harmful radiation and materials, various measures are provided in this Hitachi LCD TV. Be sure to read the cautionary items described in the manual to maintain safety before servicing.
  • Page 2: Safety Notice

    Safety Notice Please read this page before repair the TV. The following safety precautions are designed to help you stay safe and prevent accidents during the repair work. Please take note of these cautionary flags. Warning This means "Potential to sustain injury or even death." Caution This means "Potential to sustain breakage or irreparable damage."...
  • Page 3: Product Specifications

    Specification L32A02A, L32S02A, L32E200, L32R200, L32E100S, L32E101B, L32R100 Terminals VIDEO IN, L/R AUDIO IN COMPONENT IN, S-VIDEO IN, L/R AUDIO IN COMPONENT IN, L/R AUDIO IN VIDEO IN, L/R AUDIO IN HDMI1 HDMI IN HDMI2 HDMI IN RGB IN, L/R AUDIO IN...
  • Page 4: Function Overview

    Function Overview Front Panel Side Panel P+ P- Rear Panel...
  • Page 5 Function Overview AUTO RECALL -/-- P+/P-...
  • Page 6 Function Overview NOTE...
  • Page 7 Connections Example DVD Player Set-Top Box [Example] (Recording Device) [Example] [Example] DVD Player Set-Top Box [Example] DVD Player Computer Set-Top Box NOTE...
  • Page 8: Pcb Diagrams

    Main PCB Top/Bottom Layer Main PCB top layer...
  • Page 9 Main PCB Top/Bottom Layer Main PCB bottom layer...
  • Page 10: Block Diagram

    Chassis Block Diagram -10-...
  • Page 11: Schematic Diagrams

    -11-...
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  • Page 24 -24-...
  • Page 25: Ic Block Diagrams

    IC Block Diagram DVCC CPU(TLCS-900/L1) ADTRG(P53) DVSS High-speed A N0 To An3 10-bit4-ch oscillator P50 TO P53) converter Clock gear AVCC,AVSS Low speed XT1(P96) oscillator XT2(P97) RESET TXD0(P90) SIO/UART RXD0(P91) 32 bits (Channel/0) SCLK0/CTSO(P92) P00 to P07) Port0 AD0 to Ad7 P10 to P17) Port1 Ad8 A8 to AD15/A15...
  • Page 26: Ic Block Diagrams

    IC Block Diagram -26-...
  • Page 27: Ic Block Diagram

    IC Block Diagram U9,U29( 4-CHANNEL ANALOGUE MULTIPLEXER)HEF4052BT -27-...
  • Page 28 IC Block Diagram U23(5A LOW DROPOUT LINEAR REGULATOR)1.8V TO-263-3 -28-...
  • Page 29 IC Block Diagram U22,U24,U31,U32(1A LOW DROPOUT VOLTAGE REGULATOR)AMS1117-1.8 U33(STEREO SINGLE ENDED AUDIO AMPLIFER)MP7722DF -29-...
  • Page 30 Transistor Mark BC847B PT7M7809S7 BC846B -30-...
  • Page 31: Troubleshooting

    Troubleshooting Troubleshooting The flow chart shown below will help you to troubleshoot your Television set with it doesn’t display normally. Each procedure offers a simple way to check for system errors. Before starting, ensure that there is a signal in and that the television is turned on. Power LED indictor has no light Change Power...
  • Page 32: Troubleshooting

    Troubleshooting TV has picture but no sound Press “Mute”function or adjust volume up to check the sound be mute or not Check speaker Change speaker unit unit 7~9 Change power Check CN8-Pin1 board assembly &Pin2=22~24V Check U33-Pin13 Change main &Pin18=22~24V board assembly Change main Check U31-Pin2=3.3V...
  • Page 33 Troubleshooting TV has sound but no picture Check CON16 Pin15 Change power Pin16&Pin17&Pin18=12V board assembly Change power Check CON3 Pin7& Pin8 board assembly &Pin11&Pin12=24V Change main Check U23 Pin2 3.3V board assembly Change main Check U1,U2,U10,U29 board assembly voltage stable or not -33-...
  • Page 34: Replacement Part List

    Replacement Part List The following service parts list are available for purchase. Serviceman may quote the components shown in this page for servicing purposes. PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. The use of a substitute replacement part which does not have the same safety characteristics may create shock, fire or other hazards.
  • Page 35: Part List (For Reference Only)

    FOR REFERENCE ONLY Parts List -35-...
  • Page 36 FOR REFERENCE ONLY Parts List -36-...
  • Page 37 FOR REFERENCE ONLY Parts List -37-...
  • Page 38 FOR REFERENCE ONLY Parts List -38-...
  • Page 39 FOR REFERENCE ONLY Parts List -39-...
  • Page 40 FOR REFERENCE ONLY Parts List -40-...
  • Page 41 FOR REFERENCE ONLY Parts List -41-...
  • Page 42 FOR REFERENCE ONLY Parts List of AC Power Supply Unit Thermistor Surge Supression SVR-14N561K 14 350VAC/460VDC K E153360 Varistor (Success Elec. Co., Ltd) RI81 9.1M 1/2W J E205990 (Inner Monglia Erdos Bridge Resistor Elec. Co. Ltd) Resistor 5m 8A J t s i Resistor MOF 1...
  • Page 43 FOR REFERENCE ONLY Parts List of AC Power Supply Unit Q1,Q2 t s i t s i t s i t s i t s i t s i t s i t s i t s i t s i t s i t s i t s i...
  • Page 44 FOR REFERENCE ONLY Parts List of AC Power Supply Unit t s i Resistor t s i t s i t s i t s i t s i t s i t s i t s i t i c t i c t i c t i c...
  • Page 45 L32S02A, L32A02A, L32E200, L32R200, SC No. 0025E L32E100S, L32E101B, L32R100 Copyright Digital Media Systems Group, (2008) All rights reserved...

This manual is also suitable for:

L32e100sL32e101bL32a02aL32s02aL32r200L32e200