Haier TV-8888-35 Manuel utilisateur
1
HAIER
COLOR TELEVISION
SERVICE MANUAL
PART # TV-8888-35
HAIER AMERICA TRADING, LLC
www.haieramerica.com
Service Manual
46EP14S SERIES
PDP COLOUR TV
Main feacture
46 inch WXGA PDP Display Panel
DVI&PC Input Terminal (Including XGA&VGA)
PIP (Picture in Picture)
Multiple Signals Inputing
WOW Sound Processing System
Power Supply Managenent Function
Haier Group
NO: M-AM-US-P46C6A-A1-PW Edition:2004.2.30
1.Contents
1.Contents...............................................................................................................................................1
2.Product code illumination and Series Introduction.................................................2
3.FEATURES........................................................................................................................................3
4.Safety measures and Attention............................................................................................4
5. Photo of PDP taking apart:................................................................................................5
5.1 Photos of taking apart: .......................................................................................................5
5.2 Procedure:.................................................................................................................................5
5.3 Note:.............................................................................................................................................5
6. Introduction of PDP circuit board:.....................................................................................6
6.1 The introduction of circuit board at Back board:..................................................6
6.2 Explanation：(Function / Characteristic)..................................................................6
6.3 The block diagram:...............................................................................................................7
6.4 Function:....................................................................................................................................7
6.5 The definition of connector:.............................................................................................8
6.6 Detail Introduction of PDP circuit boards.................................................................9
7.Abnormal Phenomena:............................................................................................................13
8. Short Repair Show:..................................................................................................................14
9. Principle Flow-chart:................................................................................................................17
10. Bom list:.........................................................................................................................................18
11. Repair Record:..........................................................................................................................24
11.1 Record sheet: For reference............................................................................24
1
Contents
Product MATERIAL CODE illumination and Series
2.Product code illumination and Series Introduction
P46 C6A– A 1
2
Type of the display panel P: PDP
Model series number of the cabinet
Screen size (unit: inch)
Manufacturer of the display panel C: CPT
Aspect ratio: 16:9
Company of Signal processor IC A: Pixel works
3.FEATURES
The 46” PDP provides quality image displays and is suitable for a variety of
multimedia applications.
a. Available Input signals:
The standard PC module provides RGB (D-SUB15 PIN) and digital DVI input
connectors, and a RS-232 communication connector (D-SUB 9 PIN MALE).
The Video module provides composite video (RCA), S-video (DIN4P) and
component video (RCA) input connectors, and a composite video (BNC)
output connector. It supports the quality input image of DVD and HDTV
(480P/720P/1080i). The video module also provides two sets of stereo audio
input connectors (RCA).
The product supports PC image resolutions up to XGA (1024х768) with a
vertical frequency of 85HZ.
b. Power Management Function: The machine provides an automatic power control
function.
c. Fan-free Design: The unit does not require any fans for ventilation, eliminating
any bothersome noise that may be generated. It also lowers the power
consumption of the unit.
d. Others:
PIP Function:Allowing user to video TV or video in PC module.
The product includes a set of build-in 2W+2W speakers, External 10W+10W
speakers are also available.
The plasma unit provides high, medium and low color temperature
adjustment options.
3
Features
4.Safety measures and Attention
4.1. Observation and measures carefully：
When in repair service, should pay attention to these safety measures and the
description
of the service menu.
4.2.Preparation:
The preparation for repair in a defective PDP is necessary, ex：stable working
table, repair tools, measuring equipments, replace parts etc.
4.3.Pay attention to electrical shock:
Because the PDP is using the AC power source, and the power board contents
high voltage, so to preventing the high voltage shock is necessary. Such as,
using an isolated transformer, plastic glove, charged components should be
discharged first. The high voltage is supplied to inferior components, so when
repair the PDP should pay more attentions.
4.4.Using the specified components:
Some components provide fire-resist and endure high-voltage. So when replace
these parts, should use the same characteristic components. So when replace a
component should according to the BOM form for a assigned component.
4.5.Stable the components and recovery the wiring:
Some components are using isolated sleeve or adhesive tape to isolate from the
electric board. Moreover the interior wiring should be arranged again to prevent
the interference from given out heat components and high voltage
components .So after repairing, should recover the same layout of the PDP.
4.6.Integrity of the electric circuit :
Use the specified components to replace the defective parts. Under any
circumstance，do not try to modified the electric circuit .
4.7.Safety check after repairing：
After repairing, should check the screws and the wiring condition. Checking the
quality of repairing components. The insulation test of the metal component,
power cord to make sure the safety of repairing.
4
Safety measures and Attention
5. Photo of PDP taking apart:
5.1 Photos of taking apart:
5.2 Procedure:
1. First put on the PDP on a stable working table and power off the PDP which is
going to repair, then using a screwdriver to unfasten the screws which fasten
the back cover.
2. after taking apart as Fig. 2 shown.
5.3 Note:
1.Make sure that the power is off before taking apart .
2.After taking apart , put the screws at a safe place to avoid losing
3.Taking apart and installing the back cover , be careful not to pull out the switch of
AC power switch .
5
Photo of PDP taking apart
6. Introduction of PDP circuit board:
6.1 The introduction of circuit board at Back board:
6.2 Explanation：(Function / Characteristic)
a. POWER：(1).Input Voltage (AC 110V-240V、47Hz-63Hz)，Max. range
90V-265V. (2).Providing electrical power to all the PCB.
b. VIF：Transfer S-video , Video , PC(D-sub& DVI) , HDTV signal to digital
signal to the DIF board.
c. DIF：Dealing with the digital signal for output to panel.
d. X-Sustainer / Y-Sustainer：(1).Receiving the signal from DIF.
(2). Output scanning waveform.
e. X / Y-Extension board: Receive signal from X / Y sustainer , output
horizontal scanning waveform to the panel.
f. W-Extension board: Receive signal from DIF , output the vertical scanning
waveform , addressing data.
g. Audio Board：Amplifying the audio signal to the internal or external
speakers of which select.
h. AC Line Filter：AC power line filter。
6
Introduction of PDP Circiut board
6.3 The block diagram:
6.4 Function:
a. The input voltage AC 90 ~ 240 through line filter to the power board , after main
switch is on then power board generate 5 volts to VIF board. The VIF board after
receiving 5 volts then from CN connector send signal(5 volts) to power
board .Power board generates 5 volts to DIF and VIF .When VIF receives the 5
volts ,then generates 5 volts to power board through CN connector(pin1 ,pin6) ,
and it means that DIF has received 5 volts already.
b. When power on(key-pad or receiver),the VIF send VCC_ON signal to power to
start Vcc and Vf voltage through CN connector(pin2).
c. The VIF sends HV_ON signal to power board to start high voltage Vs , Vxg , Vw
through CN connector(pin4).
d. At the same time the signal from VIF to DIF for signal processing , then through X
/ Y / W board to start the screen.
7
Introduction of PDP Circiut board
6.5 The definition of connector:
⑴PY POWER TO Y-SUSTAINER
Pin 1 2 3 4 5 6 7 8 9
Name GND Vcc GND Vf Vw GND GND NC Vs
Voltage O 5V O 15V 65V 0 0 --- 170V
⑵PX1 POWER TO X-SUSTAINER
Pin 1 2 3 4 5 6 7
Name GND Vf Vw GND GND NC Vs
Voltage 0 15V 65V 0 0 --- 170V
⑶PX2 POWER TO X-SUSTAINER
Pin 1 2 3 4 5
Name Vxg NC GND GND VAU
Voltage -160V --- 0 0 15V
⑷J12 PC1 TO KEY PAD
Pin 1 2 3 4 5 6 7 8
Name Power Right Left Up Down Menu Input GND
⑸J11 PC1 TO 接收板
Pin 1 2 3 4 5 6
Name NC Red-LED Green-LED GND IR Receiver 5V
⑹J17 PC1 TO AUDIO AMP
Pin 1 2 3 4 5 6
Name MUTE L-OUT GND R-OUT GND SW-SPEAKER
⑺J16 PC1 TO POWER
Pin 1 2 3 4 5 6 7 8 9 10
Name Std-5V Low-on NC High-on NC GND --- Power
loss -- GND
⑻J15 PC1 TO POWER
Pin 1 2 3 4 5 6 7 8 9
Name 9V 9V GND GND Vcc 5V Vcc 5V GND GND Std-5V
8
Introduction of PDP Circiut
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