13. Replacement Parts List ................................ 51
14. DC Voltages ................................................. 53
Version 009E-1.4
CH 1
CH 2, CH 3
No.009E-1
SERVICE MANUAL
Caution
Be sure to read this manual before servicing. To assure safety from fi re, electric shock, injury , harmful radiation
and materials, various measures have been provided for in this HITACHI Plasma display service manual.
Be sure to read all cautionary items described in the manual to maintain safety before servicing.
Service Warning
1. Since the Panel Module and front Filter are made of glass, handlea broken Module and/or Filter withsufficient care, in order not to be injured.
2. Repair work should not be started until after the Panel Module and the AC/DC Power supply have cooled
sufficiently.
3. Special care should be exercisedin the proximity of the display area in order not to damage its surface.
4. The Panel Module should not be touched with bare hands, as this will protect its surface from stains.
5. It is recommended to use clean soft gloves during the repair work in order to protect not only the display
area of the Panel Module but also the technician.
6. The Chip Tube of the Panel Module (located in the upper left corner of the back of the glass panel)
is very fragile; as well, the flat cables connecting the Panel to the drive circuit PWBs are very weak. Take
care not to damage these, otherwise, the panel will never light again.
Contents
1. Features ----------------------------------------------- 3
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
August 2004 Digital Media Division
Plasma Display
CMP420V1/CMP420V2/42EDT41 (PW1A)
parts ( ) should be OEM when replaced.
These parts are also safety related, so
electrical shock and/or fire could result
from using generic parts.
CAUTION FOR SAFETY
Please read this page before making repairs to the monitor.
This page explainscertain safety items found in this manual which are intended to ensure thesafety of the technician and to prevent accidents during any repair work.
Warning
Caution
This symbol means "CAUTION"
This symbol means "POSSIBILITY OF
ELECTRIC SHOCK"
Special Instructions
This indicates cabinet, chassis or parts
which require special attention.
Please follow any notesas well as all safety
precautions.
Prevent electrical shock
Please use care and caution when
servicing this product. High voltages
exist in the set which can cause injury
or death.
Please disconnect the AC power
during repair to prevent serious shock
or death.
Use only recommended components.
Please use the same characteristic components, which is same as previous for your
safety. To ensure reliability, specially marked
This symbol means "Personnel Electrical Safety Hazard"
This symbol means "Equipment Operational Hazard"
WARNING
Keep the same wiring dress for boards.
Safety check should be done after finished.
Repair to the HDCP circuit is limited.
This symbol means "DO IT!"
This symbol means "DON'T DO IT!"
This monitor uses insulated spacers
which are intended to isolate metal
parts from electrical components.
Internal wiring is isolated from components by
using clamps, retainers, etc., so please return
to original condition for prevention of electrical
shock or fire.
Every part (removed screws, component
and wiring) should be returned to previous
condition.
Check around the repairedarea for
any damage by mistake. Measure the
insulated impedance of AC by ohm meter.
Confirm that the value of impedance
is greater than 4M ohm.
It is possible for electric shock or fire tooccur if the value is less than 4M ohm.
Never remove the shield case, which is
assembled to code with the HDCP circuit
2
CMP420V1/CMP420V2/42EDT41 (PW1A)
[AV MONITOR model] CMP420V1, CMP420V2
[TELEVISION model] 42EDT41
- One mini D-sub terminal and one DVI-D terminal for RGB input.
(The D-sub terminal can also receive component RGB - selectable via customer OSD.)
- One composite/S-video input terminal and two component video input terminals, added with VIDEO board.
(One of the component inputs has the capability to select RGB via customer OSD.)
- One SCART terminal for European standard, added with VIDEO board.
(It operates as composite/S-video input and RGB input terminal, or composite video output terminal.
-One composite video output terminal as a monitoring output, added with VIDEO board.
-Simple type remote (CP-RD4)
- Various input/output terminals, added with VIDEO board. (same features as above mentioned AV MONITOR)
- Tuner input added with VIDEO board
- Complex type remote (CLU-W900)
PRECAUTIONS
● How to clean the plasma panel screen (front glass) of the monitor
Before cleaning the monitor, turn off the monitor and disconnect the power plug from the power outlet.
To prevent scratching or damaging the plasma screen face, do not wipe the surface with sharp or hard
objects. Clean the screen with a soft cloth moistened with warm water and dry with a soft cloth. If it is not
clean enough, then use a cloth with glass cleaner. Do not use any harsh or abrasive chemicals.
● How to clean the cabinet of the monitor
Use a soft cloth to clean the cabinet and control panel of the monitor. When excessively soiled dilute a neutral
detergent in water, wet and wring out the soft cloth and afterward wipe with a dry soft cloth.
Never use acid/alkaline detergent, alcoholic detergent, abrasive cleaner, powder soap, OA cleaner, car wax,
etc. because they could cause discoloration, scratches or cracks.
The 42-inch color plasma display panel, with a resolution of 852 (H) x 480(V) pixels, creates a high-definition, largescreen (aspect ratio : 16:9) and low-profile flat display. Free from electromagnetic interferences from geomagnetic
sources and ambient power lines, the panel produces medium-quality images free from any color misconvergence
or corner focus distortion.
● High Performance Digital Processor
A wide range of personal computer signals can be handled, from 640 x 400, 640 x 480 VGA to 1600 x 1200 UXGA.
(RGB analog input)
● Easy-to-use remote control and on-screen-display system (OSD)
The remote control included eases the setting of display controls. Furthermore, the on-screen-display (OSD),
displays the input status control settings in an easy-to-view fashion.
● Power saving system
The International ENERGY STAR
nals are not available.
When connected to a VESA DPMS-compliant PC, the monitor cuts its power consumption while it is idle.
power saver feature saves power consumption automatically when input sig-
● TruBass
TruBass, SRS and ( ) symbol are trademarks of SRS Labs,Inc.
TruBass technology is incorporated under license from SRS Labs, Inc.
3
2. Specifications
CMP420V1/CMP420V2/42EDT41 (PW1A)
Display
Panel
Net dimensions
(excluding Speakers/Stand)
Net weight
(excluding Speakers/Stand)
Ambient
conditions
Power supply
Power consumption/at standby
Audio output
(RGB input)
Input signals
(Video input)
Input signals
Video output Signal
(RF input)
Input signals
dimensions
Resolution
Temperature
Relative humidity
Input terminals
Video signals
Sync signals
Input terminals
Video signals
Input terminals
RF Video System
Approx. 42 inches (920 (H) x 518 (V) mm, diagonal 1059mm)
852 (H) x 480 (V) pixels
1030 (W) x 636 (H) x 91 (D) mm
CMP420V1/V2:33.2kg 42EDT41:34.2kg
Operating : 5 to 35, Storage : -15 to 60
Operating : 20% to 80%, Storage : 20% to 90% (non-condensing)
AC100 - 240V, 50/60Hz
310W / <3W
12W + 12W (6ǡ)
RGB1 DVI input terminal (DVI-D)
RGB1 audio input terminal (3.5mm Stereo Mini Jack)
RGB2 analog RGB input terminal (D-sub 15-pin)
RGB2 audio input terminal (3.5mm Stereo Mini Jack)
NOTE:
1st number indicates normal button operation
2nd number indicates function during MENU
Rear Label
7654321
-+
OK
2. VOL
2. ADJ
1. SUB POWER
3. VOL
3. ADJ
4. PROGRAM
4. SELECT
5. PROGRAM
5. SELECT
6. INPUT SELECT
6. OK
7. MENU
3. Component names
[Main unit]
Control panel
• Adjustment buttons are located
on the bottom.
• The back cover is provided with
indications to distinguish the
adjustment buttons.
Remote-control
receiver
Indicating lamp
• The main power switch is located at the back, on the
lower surface.
Main power switch
[Remote control]
for
CMP420V1
CMP420V2
for
42EDT41
5
CMP420V1/CMP420V2/42EDT41 (PW1A)
4. Service points
Lead free solder
This product uses lead free solder (unleaded) to help preserve the environment. Please read these
instructions before attempting any soldering work.
Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead
free solder can splatter at high temperatures (600˚C).
Lead free solder indicator
Printed circuit boards using lead free solder are engraved with an "F."
Properties of lead free solder
The melting point of lead free solder is 40-50˚C higher than leaded solder.
Servicing solder
Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended.
Although servicing with leaded solder is possible, there are a few precautions that have to be taken. (Not
taking these precautions may cause the solder to not harden properly, and lead to consequent malfunctions.)
Precautions when using leaded solder
Remove all lead free solder from soldered joints when replacing components.
If leaded solder should be added to existing lead free joints, mix in the leaded solder thoroughly after the
lead free solder has been completely melted (do not apply the soldering iron without solder).
Servicing soldering iron
A soldering iron with a temperature setting capability (temperature control function) is recommended.
The melting point of lead free solder is higher than leaded solder. Use a soldering iron that maintains a high
stable temperature (large heat capacity), and that allows temperature adjustment according to the part being
serviced, to avoid poor servicing performance.
Recommended soldering iron:
Soldering iron with temperature control function (temperature range: 320-450˚C)
BURN-IN MODE
When the Burn-in feature is turned ON, the plasma panel operates normally on all inputs that
have a signal. On inputs that do not have a signal, the plasma panel displays a cycling single
color test pattern (see below) which is generated internally. This can be helpful to determine
if the panel is capable of displaying anything.
Rear Label
1. SUB POWER
2. VOL
2. ADJ
3. VOL
3. ADJ
4. PROGRAM
4. SELECT
5. PROGRAM
5. SELECT
6. INPUT SELECT
6. OK
7. MENU
BURN-IN MODE (ON)
With unit in standby mode
(turned off), press and hold: >
-+
NOTE:
1st number indicates normal button operation
2nd number indicates function during MENU
After the unit comes on, continue to hold the
buttons down until the initial OSD goes
away. OSD will then appear indicating that
126
BURN-IN MODE is engaged.
(OSD > Burn In On)
OK
7654321
BURN-IN MODE (OFF)
With unit in standby mode
(turned off), press and hold: >
White Yellow Cyan Green Magenta Red Blue Black
12
After the unit comes on, continue to hold the
buttons down until the initial OSD goes
away. OSD will then appear indicating that
BURN-IN MODE is disengaged.
(OSD > Burn In Off)
7
CMP420V1 / CMP420V2 / 42EDT41 (PW1A)
SERVICE MODE ACCESS
DEMO MODE
DEMO MODE
When the DEMO feature is turned ON, both the remote and the plasma panel front panel
buttons (with the exception of the SUB POWER button) are non-operational. This can be
useful for the Sales / Dealers to prevent anyone from playing with any of the settings.
NOTE: This is the front panel shortcut to parameter #175 in the I2C ADJUSTMENT MODE.
Rear Label
1. SUB POWER
2. VOL
2. ADJ
3. VOL
3. ADJ
4. PROGRAM
4. SELECT
5. PROGRAM
5. SELECT
6. INPUT SELECT
6. OK
7. MENU
DEMO MODE (ON)
With unit in standby mode
(turned off), press and hold: >
-+
NOTE:
1st number indicates normal button operation
2nd number indicates function during MENU
After the unit comes on, continue to hold the
buttons down until the initial OSD goes
away. DEMO MO DE is now engaged, al-
136
though you will not see any OSD confirmation.
OK
7654321
DEMO MODE (OFF)
With unit in standby mode
(turned off), press and hold: >
13
After the unit comes on, continue to hold
the buttons down until the initial OSD goes
away. DEMO MO DE is now disengaged,
although you will not see any OSD confirmation.
8
CMP420V1 / CMP420V2 / 42EDT41 (PW1A)
SERVICE MODE ACCESS
I2C ADJUSTMENT MODE
I2C ADJUSTMENT MODE
When the set is in the I2C Adjustment mode, use the cursor buttons for selecting the
adjustment parameter, and for changing the parameter’s value. Use the OK button to
confirm. After adjustments are complete, press the MENU button to return the set to normal
operating condition.
Rear Label
1. SUB POWER
2. VOL
2. ADJ
3. VOL
3. ADJ
4. PROGRAM
4. SELECT
5. PROGRAM
5. SELECT
6. INPUT SELECT
6. OK
7. MENU
I2C Adjustment Mode
With unit in standby mode
(turned off), press and hold: >
-+
NOTE:
1st number indicates normal button operation
2nd number indicates function during MENU
After the unit comes on, continue to hold the
buttons down until the initial OSD goes
away. OSD will then appear indicating that
146
I2C ADJUSTMENT MODE is engaged.
OK
7654321
MEMORY INIT IALIZATION
Don’t indiscriminately perform this procedure as it can result in a loss of data if the old values were not recorded.
1. Engage I2C Adjustment mode.
2. Select parameter #744. Change the data value from “0” to “1”.
3. Activate MEMORY INITIALIZATION by holding down the OK button for at least
three seconds.
4. Select parameter #374. Change the data value from “1” to “0”.
5. Check that the set changes input to AV1, indicating that the preset values have been
loaded.
9
CMP420V1 / CMP420V2 / 42EDT41 (PW1A)
SERVICE MODE ACCESS
FACTORY RESET
FACTORY RESET
Occasionally, it becomes necessary to perform a factory reset. This is different than the
Memory Initialization, only customer settings are affected by Factory Reset.
Rear Label
1. SUB POWER
2. VOL
2. ADJ
3. VOL
3. ADJ
4. PROGRAM
4. SELECT
5. PROGRAM
5. SELECT
6. INPUT SELECT
6. OK
7. MENU
Factory Reset
With unit in standby mode
(turned off), press and hold: >
-+
NOTE:
1st number indicates normal button operation
2nd number indicates function during MENU
After the unit comes on, continue to hold the
buttons down until the initial OSD goes
away. Factory Reset ha s now engaged,
156
although you will not see any OSD confirmation.
OK
7654321
10
CMP420V1 / CMP420V2 / 42EDT41 (PW1A)
SERVICE MODE ACCESS
DIAGNOSIS MODE
DIAGNOSIS MODE
This chassis has a limited self-diagnosis mode. When activated, the microprocessor generates a series
of internal communication checks and outputs the results via OSD, as seen on the table below. Since
it uses the OSD to display the results, any circuit failures which result in a “no display” or “no picture” condition will not be able to be seen, obviously. ANY operation (volume, channel, menu, input,
etc.) will cause the unit to exit from the Diagnosis mode.
Diagnosis Mode
With unit in standby mode
(turned off), press and hold: >
Codes
Most Recent Failure
15
Results
Diagnosis
After the unit comes on, continue to hold the
buttons down until the initial OSD goes
away. OSD will then appear indicating that
the DIAGNOSIS MODE is engaged.
H15: OKH11: OK
H31: OKH16: OK
H33: OKH32: OK
- - -F63F63- - -- - -
Code Problem Phenomenon Cause
H11* Tuner problem Can not receive the main signal from antenna U101 error
H15 Composite video SW IC problem Can not receive picture and audio - can not change input mode I201 error
H16 Component video SW IC problem No component picture - can not change input mode I202 error
H31 Color Demodulator IC problem Abnormal color - dark picture I501 error
H32 Sync separator IC problem Unsynchronized picture I601 error
H33 3D Y/C separator problem Abnormal color - dark picture/no picture I302 error
F63 I2C Bus latch problem Can’t store data settings
11
SDA3/SCL3
latched up
* Only with units having a tuner circuit
CMP420V1/CMP420V2/42EDT41 (PW1A)
j
p
Service
Adj.
No.Adjust ItemsMode
0 R DRIVE1 [TV/VIDEO/DSUB-COMP]COOL255224O
1 G DRIVE1 [TV/VIDEO/DSUB-COMP]COOL255224O
2 B DRIVE1 [TV/VIDEO/DSUB-COMP]COOL255224O
3 R DRIVE2 [TV/VIDEO/DSUB-COMP]NORMAL255224O
4 G DRIVE2 [TV/VIDEO/DSUB-COMP]NORMAL255224O
5 B DRIVE2 [TV/VIDEO/DSUB-COMP]NORMAL255224O
6 R DRIVE3 [TV/VIDEO/DSUB-COMP]WARM255224O
7 G DRIVE3 [TV/VIDEO/DSUB-COMP]WARM255224O
8 B DRIVE3 [TV/VIDEO/DSUB-COMP]WARM255224O
9 R DRIVE4 [TV/VIDEO/DSUB-COMP]BLACK & WHITE255224O
10 G DRIVE4 [TV/VIDEO/DSUB-COMP]BLACK & WHITE255224O
11 B DRIVE4 [TV/VIDEO/DSUB-COMP]BLACK & WHITE255224O
12 R DRIVE1 [DVI-PC/DVI-STB/DSUB-RGB]COOL255224O
13 G DRIVE1 [DVI-PC/DVI-STB/DSUB-RGB]COOL255224O
14 B DRIVE1 [DVI-PC/DVI-STB/DSUB-RGB]COOL255224O
15 R DRIVE2 [DVI-PC/DVI-STB/DSUB-RGB]NORMAL255224O
16 G DRIVE2 [DVI-PC/DVI-STB/DSUB-RGB]NORMAL255224O
17 B DRIVE2 [DVI-PC/DVI-STB/DSUB-RGB]NORMAL255224O
18 R DRIVE3 [DVI-PC/DVI-STB/DSUB-RGB]WARM255224O
19 G DRIVE3 [DVI-PC/DVI-STB/DSUB-RGB]WARM255224O
20 B DRIVE3 [DVI-PC/DVI-STB/DSUB-RGB]WARM255224O
21 R DRIVE4 [DVI-PC/DVI-STB/DSUB-RGB]BLACK & WHITE255224O
22 G DRIVE4 [DVI-PC/DVI-STB/DSUB-RGB]BLACK & WHITE255224O
23 B DRIVE4 [DVI-PC/DVI-STB/DSUB-RGB]BLACK & WHITE255224O
24 Black Level(RGB_AMP)TV/VIDEO254127
25 Black Level(RGB_AMP)PC254127
26 Reference Amplitude(RGB_AMP)TV/VIDEO254127
27 Reference Amplitude(RGB_AMP)PC254127
28 Display for Max. Amplitude LevelMain--
29 Display for Max. Amplitude LevelSUB--
30 SUB_CONTRAST(RF)MAIN157
31 SUB_CONTRAST (AV1)MAIN/SUB COMPOSITE mode157
32 SUB_CONTRAST(RF)SUB157
33 SUB_CONTRAST (AV4)MAIN/SUB COMPOSITE mode157
34 SUB_COLOR(VIDEO-PAL/SECAM)MAIN1510
35 SUB_COLOR(RF-PAL/SECAM)MAIN38
36 SUB_COLOR(VIDEO-NTSC)MAIN1510
37 SUB_COLOR(RF-NTSC)MAIN156
38 SUB_COLOR(VIDEO-PAL/SECAM)SUB1510
39 SUB_COLOR(RF-PAL/SECAM)SUB38
40 SUB_COLOR(VIDEO-NTSC)SUB1510
41 SUB_COLOR(RF-NTSC)SUB158
42 TINT(VIDEO)MAIN6333O
43 TINT(RF)MAIN6333O
44 TINT(VIDEO)SUB6333O
45 TINT(RF)SUB6333O
46 S_B-Y_ADJMAIN158
47 S_R-Y_ADJMAIN158
48 S_B-Y_ADJSUB158
49 S_R-Y_ADJSUB158
50 BPF_Q (4.43MHz)MAIN33
51 BPF_f0 (4.43MHz)MAIN31
52 Y_DL (4.5MHz) For AsiaMAIN105
53 Y_DL (5.5MHz PAL/NTSC4.43) For AsiaMAIN103
54 Y_DL (5.5MHz SECAM) For AsiaMAIN100
55 Y_DL (6.0PAL/NTSC4.43) For AsiaMAIN109
56 Y_DL (6.0SECAM) For AsiaMAIN109
57 Y_DL (VIDEO PAL/NTSC4.43)MAIN106
58 Y_DL (VIDEO SECAM)MAIN108
59 Y_DL (VIDEO NTSC)MAIN106
60 BELL_f0MAIN10
61 Y_OUT_LEVEL (VIDEO)MAIN6313
62 Initialize function for EEPROM of Video PWB board10
63 Y_OUT_LEVEL (TEXT)MAIN630
64 C_OUT_LEVEL (VIDEO)MAIN637
65 Check condition of EEPROM of Video PWB board0:Normal, 1:Abnormal(Fail or no assembly)1-
66 C_OUT_LEVEL (TEXT)MAIN630
67 Y_OUT_LEVEL (TEXT)SUB6312
adjustment items by I
2
C-bus control
Function
Maximum
Value
O : Should be ad
: Should be followed
Default
Formatter
usted
Changed Component
VIDEO
PWB
PWB
revious data
TUNER
PWB
PDP
PANEL
12
CMP420V1/CMP420V2/42EDT41 (PW1A)
j
p
Adj.
Function
No.Adjust ItemsMode
Maximum
Value
Default
68 Y_OUT_LEVEL (VIDEO)SUB6313
69 Dispersion Time of Sustain current 0: 2 Times, 1: 4 timesFor Dynamic (Day) mode10
70 C_OUT_LEVEL (TEXT)SUB637
71 C_OUT_LEVEL (VIDEO)SUB637
72 Dispersion Time of Sustain current 0: 2 Times, 1: 4 timesFor Natural (Night) mode11
Receive Sub-tint adjustment signal of NTSC by
AV1 input. (composit)
Refer to the following for the details of a signal.
Sub-tint adjustment signal
TV Video Sub-tint Adjustment (Main)
(1)
The waveform of #1pin(Cr output) and
#5pin(Y output) of [PYM] Connector is seen.
1pin is connected to CH1.
5pin is connected to CH2.
A trigger is applied to CH2.
(2)
It checks that a waveform is like fig.A.
(3)
The data of No.42 is adjusted so that a waveform
of CH1 may be set to fig.B.
Press [OK] button after the adjustment.
(4)
Check that No.42 data is the same as No.43.
TV Video Sub-tint Adjustment (Sub)
(1)
Sub-tint adjustment signal is put into the
right-hand side of two screens.
1.Push AV2 of remote control.
2.Push MULTI PICTURE (PinP) Button of
remote control, It become two screens.
3.It checks that left-hand side of two screens
is AV2.
4.After push yellow button of remote control,
and push AV1 of remote control.
5.It checks that right-hand side of two screens
is sub –tint adjustment signal.
ABA
A B
Luminance 40% (0.28V) 40% (0.28V)
Chroma Fhase 0 degree 180 degree
Chroma level 40% 40%
Waveform of CH1 and CH2.
Fig.A Before adjustment
CH1
CH2
(2)
The waveform of #1pin(Cr output) and
#5pin(Y output) of [PYS] Connector is seen.
1pin is connected to CH1.
5pin is connected to CH2.
A trigger is applied to CH2.
(3)
It checks that a waveform of is like fig.A.
(4)
The data of No. 44 is adjusted so that a waveform
of CH1 may be set to fig.B
(5)
Press [OK] button after the adjustment.
(6)
Check that No. 44 data is the same as No45.
Fig.B After adjustment
CH1
CH2
26
CMP420V1/CMP420V2/42EDT41 (PW1A)
Item
AUTOMATIC SIGNAL LEVEL ADJ USTMENT –RGB (1)
Preparation Procedure
(1) Input the adjustment signal of VGA (60Hz)
(1) Select RGB2 and enter the service adjustment
format into RGB2 [D-sub] input terminal.
the adjustment signal
The signal level of black area
should be pedestal level.
This signal must not be inserted
characters etc.
White
Black
0.7V
[Note] Never adjust without use of the specified signal.
(2) Select No.740 “RGB Amp. Gain ADJ.” and press
If that were done by mistake, the picture would become abnormal in black level, contrast and color.
In this case, it will be recovered by re-adjustment in the specified way.
mode.
OK button for more than 2 seconds to start the
adjustment.
It will complete the adjustment after the OSD of
“AUTO MODE” disappeared.
Item
AUTOMATIC SIGNAL LEVEL ADJ USTMENT –RGB (2)
Preparation Procedure
(1) Input the adjustment signal of 576p
or
480p
(1)
Select AV1 and enter the service adjustment mode.
format into AV1 input terminal.
the adjustment signal (2) Select No.740 “RGB Amp. Gain ADJ.” and press
OK button for more than 2 seconds to start the
The signal level of black area
should be pedestal level.
This signal must not be inserted
characters etc.
adjustment.
It will complete the adjustment after the OSD of
“AUTO MODE” disappeared.
(3) Select No.741 “RGB Amp. Gain ADJ.” and press
OK button for more than 2 seconds to start the
adjustment.
Black
White
It will complete the adjustment after the OSD of
“AUTO MODE” disappeared.
0.7V
[Note] Never adjust without use of the specified signal.
If that were done by mistake, the picture would become abnormal in black level, contrast and color.
In this case, it will be recovered by re-adjustment in the specified way.
27
CMP420V1/CMP420V2/42EDT41 (PW1A)
Item AUTOMATIC SIGNAL LEVEL ADJ USTMENT –VIDEO
Preparation
(1) Input the adjustment signal of 576p or
480p format into AV1 input terminal.
the adjustment signal
The signal level of black area
should be pedestal level.
This signal must not be inserted
characters etc.
White
Black
0.7V
(1) Select AV1 and enter the service adjustment mode.
(2) Select No.743 “Automatic White peak Adj. (Multi)”
and press OK button for more than 2 seconds to
start the adjustment.
It will complete the adjustment after the OSD of
“AUTO MODE” disappeared.
Procedure
[Note] Never adjust without use of the specified signal.
If that were done by mistake, the picture would become abnormal in black level, contrast and color.
In this case, it will be recovered by re-adjustment in the specified way.
28
CMP420V1/CMP420V2/42EDT41 (PW1A)
Item
Video Color Temperature Adjustment (Cool)
Adjustment Preparations
Set the output of signal
(1)
generator to white raster.
(Ratio:100%)
Component signal (480i)
(2)
Video level:0.714Vp-p
SYNC:0.286Vp-p
Set-up level:0V
Set Picture MENU to
(3)
[RESET].
Set into Factory adjustment
(4)
mode.
Adjustment Procedures
(1)
Perform the following adjustment with
the remote control.
(2)
Set the CRT color analyzer (CA100)
at the center of the panel.
(3)
Ensure that adjustment No. 0, 1, 2
are all set as 224.
(4)
After receiving Video signal,
step down the two (or one) among
adjustment No. 0, 1, 2 and adjust
the value as shown below.
At least one of the data should be 224.
Adj. pointI
2
C
Remarks
Color temperature should
be adjusted under the
condition in which the
screen is the brightest, thus
the initial value of
adjustment is it’s maximum
value.
Only reducing the brightness
controls the adjustment,
thus weaken the brighter
color to adjust.
Color temperature is at
Cool mode while the
following No. is selected.
Perform the following adjustment with
the remote control.
(2)
Set the CRT color analyzer (CA100)
at the center of the panel.
(3)
Ensure that adjustment No. 3, 4, 5
are all set as 224.
(4)
After receiving Video signal, step
down the two (or one) among
adjustment No. 3, 4, 5 and adjust
the value as shown below.
At least one of the data should be 224.
Adj. pointI
2
C
Remarks
Color temperature should
be adjusted under the
condition in which the screen
is the brightest, thus the
initial value of adjustment is
it’s maximum value.
Only reducing the brightness
controls the adjustment, thus
weaken the brighter color to
adjust.
Color temperature is at
Normal mode while the
following No. is selected.
Adjustment No. 03, 04, 05
< Specification >
Video color temperature (Normal)
Perform the following adjustment with
the remote control.
(2)
Set the CRT color analyzer (CA100)
at the center of the panel.
(3)
Set Color Temperature of PICTURE
MENU to[WARM].
(4)
Ensure that adjustment No. 6, 7, 8
are all set as 224.
(5)
After receiving Video signal, step
down the two (or one) among
adjustment No. 6, 7, 8 and adjust the
value as shown below.
At least one of the data should be 224.
Adj. pointI
2
C
Remarks
Color temperature should
be adjusted under the
condition in which the screen
is the brightest, thus the
initial value of adjustment is
it’s maximum value.
Only reducing the brightness
controls the adjustment, thus
weaken the brighter color to
adjust.
Color temperature is at
Warm mode while the
following No. is selected.
Perform the following adjustment with
the remote control.
(2)
Set the CRT color analyzer (CA100)
at the center of the panel.
Set Color Temperature of PICTURE
MENU to[B/W].
(3)
Ensure that adjustment No. 9, 10, 11
are all set as 224.
(4)
After receiving Video signal,
step down the two (or one) among
adjustment No. 9, 10, 11 and adjust
the value as shown below.
At least one of the data should be 224.
Adj. pointI
2
C
Remarks
Color temperature should
be adjusted under the
condition in which the
screen is the brightest, thus
the initial value of
adjustment is it’s maximum
value.
Only reducing the brightness
controls the adjustment,
thus weaken the brighter
color to adjust.
Color temperature is at
Cool mode while the
following No. is selected.
Adjustment No. 00, 01, 02.
< Specification >
Video color temperature (B/W)
x=0.335±0.005
y=0.343±0.005
(Color Temp:5400°K±0MPCD)
32
CMP420V1/CMP420V2/42EDT41 (PW1A)
Item
PC Color Temperature Adjustment
Adjustment Preparations
This adjustment should be
(1)
done after video color
temperature adjustment.
Set into Factory Adjustment
(2)
mode.
Input : RGB2 [D-sub]
(3)
Signal : VGA (75) 0.7V
(No set up)
Window ratio : 100%
Confirm that the screen
(4)
size is ‘Full’ .
Adjustment Procedures
(1)
Perform the following adjustment
with the remote control.
(2)
Set the CRT color analyzer (CA100)
at the center of the panel.
(3)
Ensure that the adjustments No. 12,
13, 14 are all set as 224.
(4)
After receiving PC signal, step down
the two (or one) among adjustments
No. 12, 13, 14 and adjust the value
as shown below.
At least one of the data should be 224.
Adj. pointI
2
C
Remarks
Environment㧦20 lux or less
Color temperature should
be adjusted under the
condition in which the screen
is the brightest, thus the
initial value of adjustment is
it’ s maximum value.
Only reducing the brightness
controls the adjustment, thus
weaken the brighter color to
adjust.
Color temperature is at Cool
mode while the following
No. is selected.
< Specification >
PC color temperature (Cool)
x=0.268±0.005
y=0.283±0.005
(Color temp:12000°K±10MPCD)
(5) Write adjustment value of video color temperature to the following NO.
Ribbon Cable, Control PWB to X-Drive Righ t PWBWire Ass'y, X-Drive Right to Z-SUS PWB (short)
3
Wire Ass'y, Y-Drive Upper PWB to Y-Drive Lower PWB
4
Wire Ass'y, Control PWB to Y-SUS PWB
5
All Mo d els
TE05041
TE05042
TE05042
TE05051
TE05052
44
#
Wire Ass'y, Control PWB to X-Drive Left PWB
6
Wire Ass'y, Control PWB to X-Drive Right PWB
7
8
Wire Ass'y, X-Drive Right to Z-SUS PWB (long)
9
3
7
9
All Mo d elsDescription
TE05051
TE05051
TE05053
TE05052
CH 3
CMP420V1/CMP420V2/42EDT41 (PW1A)
10. Basic circuit diagram
[ POWER BOARD Basic circuit diagram 1 ]
45
CMP420V1/CMP420V2/42EDT41 (PW1A)
[ POWER BOARD Basic circuit diagram 2 ]
46
CMP420V1/CMP420V2/42EDT41 (PW1A)
[ POWER BOARD Basic circuit diagram 3 ]
47
CMP420V1/CMP420V2/42EDT41 (PW1A)
[ POWER BOARD Basic circuit diagram 4 ][ POWER BOARD Basic circuit diagram 5 ]
48
CMP420V1/CMP420V2/42EDT41 (PW1A)
11. Printed wiring board diagram
[ POWER BOARD Printed wiring board diagram 1 ]
49
CMP420V1/CMP420V2/42EDT41 (PW1A)
[ POWER BOARD Printed wiring board diagram 2 ]
50
CMP420V1/CMP420V2/42EDT41 (PW1A)
[ POWER BOARD Printed wiring board diagram 3 ]
51
CMP420V1/CMP420V2/42EDT41 (PW1A)
12. Disassembly diagram
52
CMP420V1/CMP420V2/42EDT41 (PW1A)
13. Replacement Parts list
.
PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety.
Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual.
Don't degrade the safety of the receiver through improper servicing.
PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety.
Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual.
Don't degrade the safety of the receiver through improper servicing.
Thank you for purchasing a Hitachi plasma display speaker system.
READ THE INSTRUCTIONS ON THIS USER MANUAL CAREFULLY.
KEEP THIS USER MANUAL FOR FUTURE REFERENCES.
User Manual
CAUTION
DO NOT HANDLE MONITOR BY HOLDING THE SPEAKER SYSTEMS.
Caution required
Please be careful handling the speaker systems. Since the front side of the speaker systems
is fragile, please do NOT press hard or subject impacts.
Product ComponentsSpecifications
Type ...............................2 way 3 speakers.
Bass Reflex
Woofer............................80mm cone type x 2 /
each
Tweeter ..........................25mm dome type
Impedance .....................6Ω
Max. input power............50W
RMS input power............20W
External Dimensions ......101.5 (W) x 635.5 (H)
x 90.5 (D) mm / each
Weight............................2.1kg / each
Specifications and design subject to possible
modification without notice, due to
improvements.
Speakers (x2)
Cushions (2)
Speaker holder (x4)
Speaker cable with core (x2)
Mounting screw (x8)
Caution
screw X 2
screw X 2
Speaker holder
Speaker
holder
(R)
In the case of (R)
(L)
Cushion
L
R
SPEAKER TERMINAL
(8Ω8W)
Loosen
screws
Monitor rear side
Hook this section
on the loosened
screw
Speaker holder
shown the other side
Remove
screws
Remove
screws
スピーカー端子
(6Ω12W)
Right side
Connect the copper-coloured
wire to the side
Connect the silver-coloured
wire to the side
Speaker terminals
+
-
How to connect
the speaker
cables
(Monitor side)
Press the
lever down
Raise the
lever
Insert the
wire
Attach the cushions
to the sides of the
speakers facing the
main unit.
Cushion
Align the cushions
to the front of the
back case and affix
them.
Back case
64
Make sure the monitor power is switched off (with the standby/ receive lamp switched off or red)
before you connect or disconnect the speaker cables.
Attach the speaker systems to the monitor.
Attach the speaker brackets to the speaker systems.
1
Attach the screws in a position that allows you to read the speaker holder orientation markers (R), (L).
Notice
Use of cushions
In some cases, there can
be a gap between the main
unit and the speaker. You
can attach the cushions
provided to the side of the
speaker system, if desired,
to eliminate the gap.
Attach the speaker systems to the monitor.
2
Remove two screws on each side of the monitor
as shown and keep them for re-install. Loosen
two screws on each side of the monitor as
shown so that the speaker holders can be slide
on to them. Insert the loosened screws into the
engaging holes of the speaker holders that are
attached to the speaker system, and slide the
screws downwards. Next, use the previouslyremoved screws to fasten the speaker holders
into the mounting holes in the monitor. Tighten
the four screws to secure.
3
Caution required
Be sure to insert the speaker cables securely.
Lock the connection terminal level securely.
Attach the connection cables to
the speaker system.
Treating the wire ends
Pull off while twisting
Please prepare the supplied
speaker cables.
How to connect
the speaker
cables
(Speaker side)
Press down
the lever with
your finger
Insert the
wire
Remove
your finger
Attach the speaker connection
4
cables to the monitor.
+-
スピーカー端 子
(6Ω12W )
Connect
the copper-
( )
colour wire
スピーカー端子
(6Ω12W)
( )
BlackRed
Connect
the silvercolour wire
スピーカー端子
(6Ω12W)
65
66
MEMO
CMP420V1/CMP420V2/42EDT41 (PW1A)
67
CMP420V1/CMP420V2 YK No.009E Digital Media Division
42EDT41
Printed in Japan (JE)QR61471
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