Hisense pdh4221eu, pdh4233 schematic
PDP TV Service Manual
Plasma display
television
Service Manual
Classis: PW118 + PW2300
Product Type:PDH4221EU
Ver 1.0
Hisense Electric co., Ltd.
R&D Center PDP Institue
7, 2006
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PDP TV Service Manual
Contents
Contents……………………………………………………........ -2-
Service Manual…………………………………………………. -2-
1. Product Safety Servicing Guidelines……………………. -3-
1-1 Safety precautions………………………………………-31-2 Product Safety notice…………………………………..-3-
2. Product Fuction Specifications…………………………….-4-
2-1 Pdh4221eu product fuction…………………………….-42-2 pdh4221eu specifications………………………………-4-
3. PDP panel spec……………………………………………...-6 3-1 General description……………………………………..-7 3-2 Panel block diagram……………………………………-8 3-3 Power (PSU) description……………………………… -8-
3-4 Power block diagram…………………………………...-8-
4. Block Diagram……………………………………………….-9 4-1 unite sketch map………………………………………..-9 4-2 Video processing diagram…………………………..-14 4-3 Audio processing diagram…………………………..-15-
5. Service Mode And Adjustment………………………….. -15 5-1 Service mode…………………………………………..-15-
6. Software updating…………………………………………..-20 6-1 Pdh4221eu software updating………………………-20-
7. Pdh4221eu Explode View And Bom……………………..-21-
7-1 Spare Parts List………………………………………..-21-
9. Troubleshooting……………………………………………..-22-
10.Stand installtion…………………………………………… -24-
PDP Wall-mounting Bracket Installation Guide…………..-25-
11.
12.Ciruit Diagram……………………………………………….-26-
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PDP TV Service Manual
Product Safety Servicing Guidelines
CAUTION: BEFORE SERVICING THE CHASSIS, READ THE “SAFETY
1. Safety precautions
WARNING:
Service should not be attempted by anyone unfamiliar with the necessary precaution on this
receiver. The following are the necessary precautions to be observed before servicing this
chassis.
1. When replacing a chassis in the cabinet, always be certain that all the protective devices are put
back in place, such as: non-metallic control knobs, insulating covers, shields, isolation
resistor-capacitor network etc.
2. When replacing parts or circuit boards, disconnect the power cord.
3. When replacing a high wattage resistor (oxide metal film resistor) on the circuit board, keep the
resistor 10mm (1/2in) away from circuit board.
4. Connection wires must be kept away from components with high voltage or high temperature.
5. If any fuse in this TV receiver is blown, replace it with the FUSE specified in the chassis parts
list.
PRECAUTION” “PRODUCT SAFETY NOTICE”ON PAGE 3 OF
THIS MANUAL.
2.Product Safety notice
Many electrical and mechanical parts in the chassis have special safety-related characteristics.
These characteristics are often passed unnoticed by a visual inspection.
Replacement parts, which have these special safety characteristics are identified in this manual
and its supplement electrical components having such features are shaded on the schematic
diagram and the parts list.
Before replacing any of these components, read the parts list in this manual carefully. The use of
substitute replacement parts, which do not have the same characteristic as specified in the parts
list may create shock, fire or other hazards.
NOTES：
Screen Image retention Do not display a still image (such as on a video game or when
hooking up a PC to this PDP) on plasma monitor panel for a long time as it can cause screen
image retention. This image retention is also known as “screen burn”. To avoid such image
retention, reduce the degree of brightness and contrast of the screen when displaying a still
image.
A still image displayed too long may cause permanent damage to the PDP Panel
Watching the PDP TV in 4:3 format or other non full screen formats for a long period of time may
leave traces of borders displayed on the left, right and centre of the screen caused by the
difference of light emission on the screen. Playing a DVD or a game console may cause similar
effect to the screen. Damages caused by the above effect are not covered by the Warranty.
Afterimage on the Screen Displaying still images from Video games and PC for longer than a
certain period of time may produce partial afterimages. To prevent this effect, reduce the
brightness and contrast when displaying still images for a long time.
Height The PDP can normally operate only under 2000m in height. It might abnormally function
at a place over 2000m in height and do not install and operate there.
℃
Avoid operating the TV at temperatures below 5
Warranty Warranty does not cover any damage caused by image retention; Burn-in is not covered
by the warranty.
(41°F)
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PDP TV Service Manual
Product Fuction Specifications
1.Pdh4221eu product fuction
·High end flat display
·HDMI input
·High definition compatible
·Widecreen display optimized for cinema viewing
·Multimedia display:TV/PC
·High clear picture
·Audio equalizer
·Colour enhancer ,contrast enhancer
·High brightness,high contrast
·Tow Scarts ,Scart1 (RGB/CVBS),Scart2(Y\C/CVBS)
·Teletext with 1000 pages memory
·NICAM
2. pdh4221eu specifications
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PDP TV Service Manual
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PDP TV Service Manual
PDH4221EU
PDP panel Plasma panel 42''
Native Screen Resolution 1024 x 768
Television system Secam/PAL
Sound system BG / DK / I
Channel coverage VHF-L: E2-S8
VHF-H: S9-S37
UHF: S38-E69
PC mode (DB15) 60Hz
640 x 480, 800 x 600, 1024 x 768
YPBPR mode 50Hz
480i, 576 i/p, 720p, 1080i
60Hz
720p, 1080i
HDMI mode RGB 640 x 480, 800 x 600, 1024 x 768
YPBPR 50Hz
480i; 576 i/p, 720p, 1080i
YPBPR 60Hz
480p; 720p, 1080i
Static contrast ratio 10000 : 1
Brightness 1200 cd/m²
Viewing angle 160° (H/V)
Power source
Power consumption 300W
Audio output 2 x 7 watts
Audio filter Equalizer 5 x bands
Connection interface
Dimensions 1242mmX824mmX358mm (LXWXH)
AC 100V-240V，50/60Hz
RF Input: RF Antenna x 1
Video Input: YUV x 1 ,S-Video x 1,AV x 1
Graphic
Input:
Audio Input: YUVx 1 ,S-Video /AV x 1,PC analog
Audio
Output:
Video
Output:
Other: RS232C (Service use only)
(including stand)
PC analog (DB15) x 1,HDMI x 1
(HDCP)
(DB15) x 1
audio output x 1
headphone x 1 (Jack 3,5mm)
video output x 1
PDP panel spec
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1. General description
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2. Panel block diagram
From main board(e/rsag7.820.676a) J16
socket
The voltage is marked on the panel basic
3.Power (PSU) description
4.Power block diagram
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PDP TV Service Manual
The selection
Is on “30V”.
The selection is
On “normal”
The signal board is composed by the main board and the audio board. The main chip for video decoder is
Pw2300 produced by pixelworks co., ltd. and the scaler chip is pw118c. the audio processing chip is
msp34x0 produced by microchip co., ltd. And the audio amplifier is TA8200H .
1. unite sketch map
Block Diagram
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PDP TV Service Manual
XPK01
KEY BOARD .631
P801 P804 P802 P803 P809
JA3 J5 J9 J13
J20 JA21
J2 J21
J7 J4 J22
XP7 XP23 XP11
JA401 JA402
AUDIO BOARD.736A
XP22
JA400
JA700
XP21
XPR01
REMOTE BOARD .630
SPEAKER
FUNCTION OF CONJUNCTIONS
P801---J20
ITEM NAME FUNCTION
1 ACD
2 RLY_ON HIGH LEVEL
3 5VSTB
4 GND
5 VSON HIGH LEVEL
6 5VD
7 NC
XP2
XP13
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PDP TV Service Manual
P804---JA21
ITEM NAME FUNCTION
1 9VSC SIGNAL POWER
2 9VSC SIGNAL POWER
3 GND
4 5VSC SIGNAL POWER
5 5VSC SIGNAL POWER
6 5VSC SIGNAL POWER
7 GND
8 GND
9 GND
P803---JA401
ITEM NAME FUNCTION
1 5VSC NO USED
2 5VSC NO USED
3 5VSC NO USED
4 GND
5 GND
6 GND
7 12VSC MSP3410/MAD4868
8 12VSC MSP3410/MAD4868
9 GND
10 GND
11 12VF NO USED
12 GNDF
P802---JA400
ITEM NAME FUNCTION
1 30V TA8200AH
2 30V TA8200AH
3 GND
4 GND
P809—JA402
ITEM NAME FUNCTION
1 9V TUNER POWER
2 GND
J13---XP13
ITEM NAME FUNCTION
1 GND
2 SDATA HDMI AUDIO DATA
3 SCLK HDMI CLOCK
4 GND
5 LRCK AUDIO CLOCK
6 MCLK HDMI CLOCK
J2---XP2
ITEM NAME FUNCTION
1 GND
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2 SCL BUS CLOCK
3 SDA BUS DATA
4 NC
5 MUT1 CONTROL SIGNAL
6 MUT2
7 VOL
8 RST RESET SIGNAL
J21-XP21
ITEM NAME FUNCTION
1 GND
2 SPDIF NO USED
3 ID2 NO USED
4 ID1 TUNER SYNC PULSE
5 SW0 NO USED
6 SW1 NO USED
7 331_1 SCART 1/SCART2 CONTROL
8 331_0
J9---XP11
ITEM NAME FUNCTION
1 V_M TUNER CVBS
2 GND
3 V_P NO USED
4 GND
XPK01---JA3
ITEM NAME FUNCTION
1 K101 5VSTB
2 K102 CH3 K103 CH+
4 K104 VOL5 K105 VOL+
6 K106 SOURCE
7 K107 MENU
8 GND
J5---XPR01
ITEM NAME FUNCTION
1 IR1 REMOTE CONTROL
2 GND
3 LED1 NO USED
4 LED2 NO USED
5 GND
6 5VST_BY POWER OF REMOTE
J7---XP7
ITEM NAME FUNCTION
1 CVBS1-IN SCART2 Y
2 GND
3 C-IN SCART2 C
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PDP TV Service Manual
4 GND
5 Y-IN SCART2 Y
6 GND
7 CVBS1-OUT NO USED
8 GND
9 CVBS2-OUT VIDEO OUT
10 GND
11 GPIO SCART1 SWITCH
J4---XP23
ITEM NAME FUCTION
1 SC-G SCART1 GREEN SIGNAL
2 GND
3 SC-B SCART1 BULE SIGNAL
4 GND
5 SC-R SCART1 RED SIGNAL
6 GND
J22---XP22
ITEM NAME FUCTION
1 SWI2 SCART2 SWITCH
2 GND
3 SC-FB SCART1 FAST BLANK
4 GND
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