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Plasma Display
August 1999 Digital Media Systems Division
SERVICE MANUAL(Rev.A)
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S UB-PO WER
SE LE CT
M EN U
R G B/
VID EO
V O L U M E
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 Plasma
display. Be sure to read the cautionary items described in the manual to maintain safety
before servicing.
1. The Panel Module and front Filter are made of glass, therefore great care must be taken
when handling to prevent breakage and subsequent injury.
2. Do not attempt any module replacement work until the Panel Module and the AC/DC
Power supply have had time to cool down.
3. Special care must be taken to the front display area to prevent damage to its surface.
4. To protect its surface from stains, the Panel Module must not to be touched with bare
hands
5. For personal protection and to protect the display area of the Panel Module, the use of
clean soft gloves is recommended during replacement work.
6. The Chip Tube of Panel Module (located upper left of the back) and flexible cables
connecting the Panel glasses to the drive circuit PWBs are very weak, therefore care
must be taken when handling. Any breakage of the Chip Tube is permanent.
1. Features .............................. 2
2. Specifications......................... 2
3. Names of each part................. 3
4. Trouble shooting..................... 4
5. Block diagram .......................
6
6. Disassembly diagram ............... 7
7. Replacement Parts list ............ 10
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
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HIII
SM0052
Caution
Contents
Serviceman Warning
CMP402HDE
CMP402HDJ
CMP402HDU


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1. Features
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42 inches Hi-Vision compatible high-definition color plasma display panel
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Newly developed Multi-scanning converter provides a multiscan converage of TV
signals through to PC analog signals (24kHz to SXGA (80kHz)) CMP402HDE supports
PC analog video signal only
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Large high-quality display images free from color misconvergence and display
distortion, as well as from geomagnetic effect and the magnetic effect of ambient power
lines
2. Specifications
PDP Module
42 inch ALIS PDP panel (aspect ratio 16:9)
Description
: FPF42C128128UA
Pixel pitch
: 0.90 mm(H) x 0.51 mm(V)
Pixel structure
: RGB striped
Brightness
: 350cd/m
2 (typical) in dark room
Contrast
: 250:1 (typical) with front filter
RGB 1
(mD-15p)
RGB 2
(BNCx5)
Video
: 0.7 Vp-p
Sync.
: Separate H/V, TTL level
Composite H/V, TTL level
Sync. on Green at 0.30 Vp-p
Video 1
(BNCx1, S-
terminalx1)
CMP402HDE is
not available
Composite Video or S-video (for S2)
NTSC3.58 NTSC4.43 PAL M-PAL SECAM
Video
: Composite 1.0 V
: S-video Y: 1.0 Vp-p, C:0.29Vp-p
Sync
: Composite sync
Input
Signal
Video 2
(BNCx3)
CMP402HDE is
not available
Component Video
Y,Pb,Pr or Y,Cb,Cr: (480I,480P,1080I,1035I)
Video :
Y : 1.0 Vp-p
Pb/Cb,Pr/Pr
: 0.7 Vp-p
Sync. : Superimposed with Y signals
Colors
16.77 million
Synchronization
Horizontal : 24 ­ 80 kHz
Vertical
: 50 - 75 Hz
Resolution
Horizontal : 1024 dots (max.)
Vertical
: 1024 lines (max.)
Viewable Image Size
42 inches (1060 mm), diagonal (typical)
Viewable Image Area Horizontal : 922 mm (typical)
Vertical
: 522 mm (typical)
Color Temperature
1: Cool
2: Norm 3: Warm
Warm-up Time
30 minutes to reach optimum performance level.
Power Supply
AC 100 - 120 / 200 - 240 V (5.0A /2.5A)
50/60 Hz
(automatically selected)
Power Consumption :
450 W (typical)
(provided with power save circuit.)
Dimensions
1041 (W) × 648 (H) × 89 (D) mm
Weight
34 kg (approx.) without stand(option)
Environmental
Condition
Operation
Storage
Temperature
5ºC to 35ºC
15ºC to 60ºC
Humidity
20% to 80%
20% to 90%
2


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3. Names of each part
l External
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SU B-PO WER
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MEN U
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VOL UME
FRONT VIEW
Filter
Panel
Front
Frame
Power
Switch
STAND(Option)
Control
Switches
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REAR VIEW
Rear
Cover
RGB Input Terminals
Video Input Terminals
(CMP402HDE is not available.)
Speaker
Terminals
AC Inlet
l Input terminal(D-sub connector)
Pin No.
Signal
1
Red Video
2
Green Video (Sync. optional)
3
Blue Video
4
No connection
5
No connection
6
Red Ground
7
Green Ground
8
Blue Ground
9
No connection
10
Ground
11
No connection
12
No connection
13
H.Sync. (or H/V composite)
14
V.Sync.
15
No connection
Message table
*
Onscreen display
Indication
Condition
The monitor indicates the message
"POWER SAVE".
The monitor detects no sync. signal.
The monitor indicates the message
"OUT OF FREQUENCY".
The monitor detects a sync. signal which
is out of specification, or unstable.
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Yes
Yes
4. Trouble shooting
Yes
Are the voltages
applied to pins ²,11 (PAS)
of the Signal PWB
correct?
² +5.6V
11
+4.4V
´ GND
Signal PWB
Speaker
AC/DC
Power unit
No
Yes
Power can not be turned on (LED is not lit)
Is the input voltage
applied to the AC/DC
Power unit (J01 ¬, ®)?
AC inlet
Power switch
AC Fuse
F901 12A,250V
No
Picture is displayed, but no sound
Is the voltage
applied to pin ¬ (J104)
of the AC/DC Power
unit correct?
No
AC/DC
Power unit
¬ +25 ~ 30V
¯ GND
No
Are there signals on the
Speaker Terminals?
Video PWB
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No
No
No
No
red
green
Yes
high
(5V)
No
low (0V)
Yes
No
Yes
Yes
¯ +165V
² + 70V
¬ GND
Yes
No (1.5V)
³ +3V
´ GND
Yes
² +5.6V
´ GND
Yes
Is Voltage
of the pin - (PAS)
on the Signal PWB
high?
Is the LED
red or green?
Picture is not displayed (LED is lit)
Do the Fans
rotate?
Is the voltage
applied to pin ² (PAS)
of the Signal PWB
correct?
AC/DC
Power unit
Signal PWB
AC/DC
Power unit
With J106
(AC/DC Power unit)
disconnected, is the
picture displayed?
DC Fan
AC/DC
Power unit
Is the voltage
of pin - (J104)
on the AC/DC Power
unit 5V?
AC/DC
Power unit
Are the voltages
of pins ¯, ² (J103)
on the AC/DC Power
unit correct?
Are the voltages
of the DC/DC Power
unit correct?
Is the voltage
of pin ³ (J102)
on the AC/DC Power
unit correct?
Panel
Module
Panel Module
DC/DC
Power unit
See page 6
5
AC/DC
Power unit