Funai T27004-BD Schematic
TITLE
Nexgen Mediatech Inc.
DATE 08/19/2005
T27004-BD Level 1 Service Manual
VER V1.0
PAGE 2/38
T27004-BD LCD TV
Service Manual
Model No: T27004-BD
Brand: Funai
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Nexgen Mediatech Inc.
DATE 08/19/2005
TITLE
T27004-BD Level 1 Service Manual
VER V1.0
PAGE 3/38
Table of content
1. Attention During Servicing………………………. 4
2. Purpose………………………………………………5
3. Definition of Level 1 Service……………………..5
4. Block Diagram………………………………………6
5. Disassembly/Assembly Procedures…………… 7
6. Trouble Shooting Analysis……………………...22
7. Update BIOS………………………………………..29
8. Explosion Diagram………………………………..35
9. Level 1 Spare Parts List………………………….36
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DATE 08/19/2005
TITLE
T27004-BD Level 1 Service Manual
VER V1.0
PAGE 4/38
1. Attention During Servicing
1-1. This TV should be operated from the type of power indicated on the using
label. If you are not sure of the type of power available, consult your
dealer or local power company..
1-2. The TV shall be placed at low humidity and low dust.
1-3. Place the TV on firm flat surface carefully. The surface of the TV is plastic
material and thin glass, drop or sharp impact will cause damage to the TV.
1-4. Do not use alcohol or ammonia-based liquid to clean the TV. If necessary,
clean with a slightly damp cloth. Disconnect the TV from the power supply
before cleaning.
1-5. Remove the power supply immediately in case of abnormality occurred in
the TV, especially strange noise of smell
1-6. Turn on power for testing only after completing the assembly of the TV
include casing and tighten the screw while servicing the TV to prevent
hazard.
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DATE 08/19/2005
TITLE
T27004-BD Level 1 Service Manual
VER V1.0
PAGE 5/38
2. Purpose
The purpose of this service manual is for the reference of Authorized Service
Provider (ASP) while proceeding level 1 service for the product mentioned in
this manual.
3. Definition Of Level 1 Service
The definition of “level 1 service” is defined by Service Provider (SP hereafter)
based on service efficiency and effectiveness considerations. Normally level 1
means
PCBA、Mechanical Parts、Internal Cable、Accessory Component、
Packing Material for LCD TV, The concrete composition of level 1 spare parts
will be mentioned in item 9, to show the level 1 list of materials.
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Nexgen Mediatech Inc.
TITLE
T27004-BD Level 1 Service Manual
4. Block Diagram
DATE 08/19/2005
VER V1.0
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Inverter
LCD Panel
MCU
A/D Converter Video Decoder
Graphic Interface
LCD Panel Interface
LCD
Controller
SDRAM
DC/DC Converter
Audio
Processor
&
Amplifier
TV Module
TV
Interface
Audio & Power Interface
OSD Keypad & Indicate LED
&Speaker Connector
Speaker-R
Speaker-L
6
Power
Adapter
To CATV
Nexgen Mediatech Inc.
DATE 08/19/2005
TITLE
T27004-BD Level 1 Service Manual
VER V1.0
PAGE 7/38
5. Disassembly/Assembly Procedures
Tools. MODEL: T27004-BD
Disassembly steps:
1. Take off AV and PC Cover.
2. Recline TV set, release 4 screws and
take off Stand Kit. AV and PC Cover.
AV
Cover
Stand Kit.
PC
Cover
AV
Cover
PC
Cover
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DATE 08/19/2005
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T27004-BD Level 1 Service Manual
VER V1.0
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3. Release 4 screws of Adapter Cover. Adapter Cover.
3-1. Pull off Adapter Connector by arrow direction. Adapter.
4. Release 8 screws.
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4-1. Release 6 screws.
4-2. Release 3 screws and take off Back
Cover. Back Cover.
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DATE 08/19/2005
VER V1.0
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5. Take off Function Key Kit.
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DATE 08/19/2005
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T27004-BD Level 1 Service Manual
VER V1.0
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5-1. Release 2 screws of Function Key Kit.
5-2. Pull off the Connect Wire. Function Key Kit.
6. Take off IR Board.
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Nexgen Mediatech Inc.
DATE 08/19/2005
TITLE
6-1. Release 2 screws and pull off the
Connect Wire. IR Board.
7. Take off right and lift Speak Box.
T27004-BD Level 1 Service Manual
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7-1. Release 6 screws of right Speak Box.
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TITLE
7-2. Release 6 screws of left Speak Box. Speak Box.
8. Take off Speakers.
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DATE 08/19/2005
VER V1.0
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8-1. Use a pliers to take off Speakers
wires of right side.
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Nexgen Mediatech Inc.
TITLE
T27004-BD Level 1 Service Manual
8-2. Use a pliers to take off Speakers
wires of left side.
8-3.Release 6 screws of right Speakers.
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8-4.Release 6 screws of left Speakers. Speaker of 5W8Ω and 5W4Ω
5W8Ω
Full
Range
5W4Ω
Tweeter
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Nexgen Mediatech Inc.
DATE 08/19/2005
TITLE
9. Take off Wall Mount Bracket.
9-1. Release 3 screws of upside.
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9-2. Release 3 screws of underside. Wall Mount Bracket.
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Nexgen Mediatech Inc.
DATE 08/19/2005
TITLE
10. Take off PC Panel Bracket.
10-1. Release 8 screws of PC Panel
Bracket. PC Panel Bracket.
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11. Take off AV Panel Bracket.
Take off Aluminum Tinsel.
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DATE 08/19/2005
TITLE
T27004-BD Level 1 Service Manual
VER V1.0
PAGE 16/38
11-1. Release 6 screws of AV Panel
Bracket . AV Panel Bracket.
12. Release 3 screws and take off Main
Cover Bracket by arrow direction. Main Cover Bracket.
13. Take off Video Board.
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Nexgen Mediatech Inc.
TITLE
T27004-BD Level 1 Service Manual
13-1. Release 6 screws of Video Board.
13-2. Take off 3 wires of Video Board. Video Board.
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14. Take off Main Board.
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TITLE
T27004-BD Level 1 Service Manual
14-1. Release 7 screws of Main Board.
14-2. Take off 11 wires of Main Board. Main Board.
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15. Take off TV Panel Bracket.
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DATE 08/19/2005
TITLE
T27004-BD Level 1 Service Manual
VER V1.0
PAGE 19/38
15-1. Release 2 screws of TV Panel
Bracket. TV Panel Bracket.
16. Take off Panel Connector.
16-1. Release screw of Ground Wire and
take off Panel Connect Wire by arrow
direction.
Take off the black sticky tape.
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