SUPERSCAN SSH2442 User manual

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Plasma Display
August 2004 Digital Media Division
YK No.011E
SERVICE MANUAL
Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury, harmful radiation
and materials, various measures have been provided for in this HITACHI Plasma displayservice manual.
Be sure to read all cautionary items described in the manual to maintain safety before servicing.
Contents
1. Since the Panel Module and front Filter are made of glass, handle a broken Module and/or Filter with
sufficient 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 exercised in 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.
Service Warning
Caution
1. Features ----------------------------------------------- 3
2. Specifi cations ----------------------------------------- 4
3. Component Names --------------------------------- 5
4. Service point ------------------------------------------ 6
5. Service Modes ------------------------------------- 7
6. Troubles ooting ------------------------------------ 16
7. Block Diagram ------------------------------------ 19
SSH2442
8. Connector Diagram ....................................... 22
9. Wiring Diagram ............................................. 23
10. Basic Circuit Diagram .................................. 25
11. Printed Wiring Board Diagram ..................... 30
12. Disassembly Diagram .................................. 38
13. Replacement Parts List ................................ 45
SuperScan
14. Board Layout .................................................47

2
SSH2442
CAUTION FOR SAFETY
Please read this page before making repairs to the monitor.
This page explains certain safety items found in this manual which are intended to ensure the
safety of the technician and to prevent accidents during any repair work.
Warning This symbol means "Personnel Electrical Safety Hazard"
Caution This symbol means "Equipment Operational Hazard"
This symbol means "CAUTION"
This symbol means "POSSIBILITY OF
ELECTRIC SHOCK"
This symbol means "DO IT!"
This symbol means "DON'T DO IT!"
Special Instructions
This indicates cabinet, chassis or parts
which require special attention.
Please follow any notes as 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 compo-
nents, which is same as previous for your
safety. To ensure reliability,specially marked
Keep the same wiring dress for boards.
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.
Safety check should be done after finished.
Every part (removed screws, component
and wiring) should be returned to previous
condition.
Check around the repaired area 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 to
occur if the value is less than 4M ohm.
Repair to the HDCP circuit is limited.
Never remove the shield case, which is
assembled to code with the HDCP circuit
WARNING
parts ( ) should be OEM when replaced.
These parts are also safety related, so
electrical shock and/or fire could result
from using generic parts.

How to clean the plasma panel 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.
1. Features
Enhanced definition Plasma display panel
The 42-inch color plasma display panel, with a resolution of 852 (H) x 480(V) pixels, creates a widescreen
picture. This panel features a thin form factor and can be hung on a wall with the optional wall mount kit.
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 included remote control operates all TV functions. Furthermore, the on-screen-display (OSD),
displays the status of control settings in an easy-to-view fashion.
Power saving system
The International ENERGY STAR power saver feature saves power consumption automatically when input sig-
nals are not available.
When connected to a VESA DPMS-compliant PC, the monitor cuts its power consumption while it is idle.
PRECAUTIONS
3
SSH2442

4
2. Specifications
Applicable video signals for each input terminal
Terminal RCA DVI D-sub * Remarks
Type Composite S-video Component PC/STB RGB
AV1 O O
AV2 O O
AV3 O 480i Video Signal only
AV4 O 1080i/720P/480P/480i inputs.
RGB1 O
RGB2 O
(O: Available)
SSH2442
• It takes at least 30 minutes to attain the maximum picture quality.
Panel Display
dimensions Approx. 42 inches (920 (H) x 518 (V) mm, diagonal 1059mm)
Resolution 852 (H) x 480 (V) pixels
Net dimensions 1030 (W) x 636 (H) x 91 (D) mm (excluding Speakers / Stand)
1232 (W) x 711.5 (H) x 300 (D) mm (including Speakers / Stand)
Net weight 33.0 kg (excluding Speakers / Stand)
42.0 kg (including Speakers / Stand)
Ambient
conditions Temperature Operating: 5°C to 35°C, Storage: -15°C to 60°C
Relative humidity Operating: 20% to 80%, Storage: 20% to 90% (non-condensing)
Power supply AC100 - 240V, 50/60Hz
Power consumption/at standby 310W / <3W
Audio output 10W + 10W (6 )
(RGB input)
Input signals Input terminals RGB1-VGA audio input terminal (3.5mm Stereo Mini Jack)
RGB1-VGA analog RGB input terminal (D-sub 15-pin)
RGB2 DVI-D input terminal (DVI-D)
RGB2 DVI-D audio input terminal (3.5mm Stereo Mini Jack)
Video signals 0.7 V
Sync signals H/V separate, TTL level [2k ]
H/V composite, TTL level [2k ]
Sync on green, 0.3 Vp-p [75 ]
Recommended signal 43 modes
(Video input)
Input signals Input terminals AV1 : Composite video input terminal(RCA)
AV1 : S video input teminal
AV1 : L/R audio input terminal(RCA)
AV2 : Composite video input terminal(RCA)
AV2 : S video input teminal
AV2 : L/R audio input terminal(RCA)
AV3 : Component input (Y-CbCr) (RCA)
AV3 : L/R audio input terminal(RCA)
AV4 : Component input (Y-CbCr or Y-PbPr) (RCA)
AV4 : L/R audio input terminal(RCA)
Video signals AV1 : NTSC-M
AV2 : NTSC-M
AV3 : 480i
AV4 : 480i , 480p , 1080i/60 , 720p/60
Video output Signal OUTPUT (MONITOR): composite video monitor-output terminal (RCA)
OUTPUT (MONITOR): L/R audio monitor- output terminal (RCA)
Recommended signal 5 modes
(RF input)
Input signals Input terminals ANT: 75 Unbalanced
RF Video System NTSC-M

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
Power lamp
Main power switch
The main
power switch is
located at the
back, on the
lower surface.
5

SLEEP
Press this button to activate the Sleep
Timer menu.
CH-LOCK
Press this button to select the V-chip
function.
MENU
Press this button to select the
On Screen Display Menu.
AV1
Press this button to select the VIDEO 1
or S-VIDEO 1 INPUT.
AV2
Press this button to select the VIDEO 2
or S-VIDEO 2 INPUT.
ZOOM
Press this button to change the picture
size.
SWAP
Press this button to exchange main
picture with PIP picture.
MUTE
Press this buttontoturnoffthe sound.
Press it once more or press the
volume up button to return the sound.
MTS
Press this button to select Multi-channel
television sound. This button operates
only in the TV mode.
NUMBERS KEYPAD
Press these buttons to access the
corresponding TV channels.
Source
Press this button to select the INPUT
Source.
TV
Press this button to choose TV as the
source.
POWER
Press this button to turn the TV on or
off.
CCD
Press this button to show the Close
Caption menu.
RGB1
Press this button to select the RGB1
VGA INPUT.
AV3
Press this button to select the AV3 480i
INPUT.
AV4
Press this button to select the AV4
480p/480i INPUT.
RGB2
Press this button to select the RGB2
DVI-D INPUT.
ASPECT
Press this button to selcet how the
picture is displayed on the screen;
4:3,16:9, Panoramic, or Cinema
modes.
LAST CH
Press this button to return to the last
Channel viewed.
DISPLAY
Press this button to show the input
signal information.
PIP
Press this button to show the PIP and
change the size of PIP.
STILL
Press this button to freeze the picture.
Press it again to return to normal
operation.
VOL
Press these two buttons to adjust the
volume up or down.
CH
Press these two buttons to select
the channel up or down.
6
Remote

7
4.Servicepoints
Lead free solder
This productuses lead free solder (unleaded) to help preserve the environment. Please read these
instructions before attempting any soldering work.
Caution: Alwayswear 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˚Chigher 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 afew 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
Asoldering iron with atemperature setting capability (temperature control function) is recommended.
The melting point of lead free solder is higher than leaded solder. Use asoldering iron that maintains ahigh
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)
Recommended temperature range per part:
Part Soldering iron temperature
Mounting (chips) on mounted PCB 320˚C±30˚C
Mounting (chips) on empty PCB 380˚C±30˚C
Chassis, metallic shield, etc.420˚C±30˚C
(1) FILTER PWB, IR PWB, SWPWB, KEY PWB, SPTERMINAL(L/R) PWB
(2) INTERFACE, PWB
(3) VIDEO PWB
(4) FORMATTER PWB
(5)POWER BOARD
The PWB assembly which has used lead free solder
SSH2442

8
Input Signal Formats
NT1: S and Composite of NTSC
NT2: Component of NTSC (Y,Cb,Cr)
NT3: Component of NTSC (Y,Pb,Pr)
NT4: Component of NTSC (Y,Cb,Cr)
NTSC: NTSC1-4
HD1-6: Component (shown in the table )
HD7: Component of 1080i/60 (Y,Pb,Pr)
HD8: Component of 1080i/60 (Y,Cb,Cr)
HD9: Component of 576p (Y,Pb,Pr)
HD10: Component of 576p (Y,Cb,Cr)
HD: HD1-10 of Component
TV: NTSC / HD
PC: PC signal
Video
Input System Judgment of
H.Frequency
Video Input
Setup Mode
AV1
AV2
AV3
AV4
NTSC 15.75kHz
(480i)
Auto NT1
DVD NT1
NTSC
15.75kHz
(480i)
Auto HD10
SDTV/DVD HD10
HDTV HD8
NTSC
15.75kHz
31.5kHz
33.75kHz
45kHz
64kH
Auto HD
SDTV/DVD HD
HDTV HD
SSH2442

5. ADJUSTMENT
The SSH2442 chassis has a Factory Mode, where the technician can access and adjust some of the color
temperature settings. The Factory Mode has several different appearances, depending on the input signal.
ENTER MENU SOURCE
1 2 3 4 5 6 7 8
- +
Preliminary
1. To access the Factory Mode, the TV
must be running.
Procedure
1. Press and hold the #6 button (PROGRAM ).
2. While continuing to hold the #6 button, press and hold the #1 button (SUB-POWER).
3. After both buttons have been held down for a minimum of five (5) seconds, first release the #1 button, then
release the #6 button.
4. As stated previously, the input that the TV had selected at the time will determine which actual FACTORY
MODE display willshow up. (See below)
SERVICE (FACTORY) MODE ACCESS
9
SSH2442
INPUT: AV1, AV2, AV3, AV4, RGB2 (DVI-D)
INPUT: TUNER (ANTENNA/CABLE)
INPUT: RGB1 (VGA)
MAX BRIGHT*
FACTORY MODE LP8AG-V0.34-T1
WARM
BASIC
COOL
NV CLEAR
MAX BRIGHT*
CHECK PANEL*
FACTORY MODE LP8AG-V0.34-T1
WARM
BASIC
COOL
NV CLEAR
MAX BRIGHT*
FACTORY MODE LP8AG-V0.34-T1
WARM
BASIC
COOL
NV CLEAR
BLACK LEVEL
AUTO COLOR*
* "MAX BRIGHT", "CHECK PANEL", and "AUTO COLOR" adjustments are not functional on this chassis version.

The following pages detail the procedures to make the color temperature adjustments. Note
that a colorimetry meter (such as a MinoltaCA-100) is requiredto measure theactual
screen color temperature.
Example 1 - x=0.285 +/- 0.005,y=0.293 +/- 0.005 = Color Temp:9300K)
Example 2 - x=0.314 +/- 0.005,y=0.327 +/- 0.005 = Color Temp:6500K)
NV CLEAR is used for re-initializing the microprocessor. Press the button on the remote to
navigate to the block "NV CLEAR", then pressthe ENTER button on the remote. The color will
change from yellow to magenta.
5. ADJUSTMENT (continued)
FACTORY MODE NAVIGATION
NV CLEAR
To navigate through the different menu items, use the or button on the remote control. The
menu items will be high-lighted yellow asnavigation occurs. To access a particular adjustment
parameter, use the button on the remote, which will cause a new menu to appear. To back up,
or to exit from the Factory Mode, use the MENU button on the remote.
MAX BRIGHT*
FACTORY MODE LP8AG-V0.34-T1
WARM
BASIC
COOL
NV CLEAR
BLACK LEVEL
AUTO COLOR*
MAX BRIGHT*
FACTORY MODE LP8AG-V0.34-T1
WARM
BASIC
COOL
NV CLEAR
BLACK LEVEL
AUTO COLOR*
(button)
MAX BRIGHT*
FACTORY MODE LP8AG-V0.34-T1
WARM
BASIC
COOL
NV CLEAR
BLACK LEVEL
AUTO COLOR*
MAX BRIGHT*
FACTORY MODE LP8AG-V0.34-T1
WARM
BASIC
COOL
BLACK LEVEL
AUTO COLOR*
(ENTER button)
COLOR TEMPERATURE ADJUSTMENTS
10
* "MAX BRIGHT", "CHECK PANEL", and "AUTO COLOR" adjustments are not functional on this chassis version.

Item Black Level Adjustment Adj point
Adjustment Preparations Adjustment Procedures Remarks
(1)
(2)
(3)
Set info Fctory Adjustment mode
Input : RGB 1 VGA
Signal : VGA (31.5KHz) 0.7V
Windows ratio : 100%
(2004 Extron electronic infocom
DEMO pattern)
Confirm that the screen size is
“Full”
(1)
(2)
(3)
(4)
Perform the following
adjustment with remote control
Set the CRT analyzer (CA100)
at center of panel
After receiving pc signal, set
down the one among
adjustments and adjustment the
value.
Start the FACTORY mode,
1. Use ϧϰ/ ENTER button
select “WARM" mode.
2. Push and adjustment
3. Dark 12 need weak light
Envirment:
20lux or less
Color temperature should
be adjusted under the
condition in which the
screen is 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.
FACTORY MODE LP8SA
WARM
NORMAL
COOL
NV CLEAR
AUTO COLOR
MAX BRIGHT
BLACK LEVEL
16 20 24 28 32
243 235 247 249 251
FACTORY MODE LP8SA
WARM
NORMAL
COOL
NV CLEAR
AUTO COLOR
MAX BRIGHT
BLACK LEVEL
161284 20 24 28 32
243 235 247 249 251241239
adjustment "B level"
BLACK LEVEL
B96
11
SSH2442

Item Color Temperature Adjustment (Warm) Adj point
Adjustment Preparations Adjustment Procedures Remarks
(1)
(2)
(3)
Set info Fctory Adjustment mode
Input : RGB 1 VGA
Signal : VGA (31.5KHz) 0.7V
Windows ratio : 100%
Use White pattern
Confirm that the screen size is
“Full”
(1)
(2)
(3)
(4)
Perform the following
adjustment with remote control
Set the CRT analyzer (CA100)
at center of panel
After receiving pc signal, set
down the one among
adjustments and adjustment the
value.
Start the FACTORY mode,
1. Use ϧϰ/ ENTER button
select “WARM" mode.
2. Push and adjustment
3. If adjutment "G" and "B" please
Envirment:
20lux or less
Color temperature should
be adjusted under the
condition in which the
screen is 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.
FACTORY MODE LP8SA
WARM
NORMAL
COOL
NV CLEAR
AUTO COLOR
MAX BRIGHT
BLACK LEVEL
FACTORY MODE LP8SA
WARM
NORMAL
COOL
NV CLEAR
AUTO COLOR
MAX BRIGHT
BLACK LEVEL
adjustment "R" level
WARM
B
228
repeat 1~2 steps.
Color mode while the Warm
mode while the following is
selected
G
R
210
186
<Specification>
Video color tempertaure (WARM)
x=0.314 0.005
y=0.327 0.005
(Color Temp:6500 K 0MPCD)
+
-
+
-
+
-
o
12
SSH2442

Item Color Temperature Adjustment (Normal) Adj point
Adjustment Preparations Adjustment Procedures Remarks
(1)
(2)
(3)
Set info Fctory Adjustment mode
Input : RGB 1 VGA
Signal : VGA (31.5KHz) 0.7V
Windows ratio : 100%
Confirm that the screen size is
“Full”
(1)
(2)
(3)
(4)
Perform the following
adjustment with remote control
Set the CRT analyzer (CA100)
at center of panel
After receiving pc signal, set
down the one among
adjustments and adjustment the
value.
Start the FACTORY mode,
1. Use ϧϰ/ ENTER button
select “Normal" mode.
2. Push and adjustment
3. If adjutment "G" and "B" please
Envirment:
20lux or less
Color temperature should
be adjusted under the
condition in which the
screen is 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.
FACTORY MODE LP8SA
WARM
NORMAL
COOL
NV CLEAR
AUTO COLOR
MAX BRIGHT
BLACK LEVEL
FACTORY MODE LP8SA
WARM
NORMAL
COOL
NV CLEAR
AUTO COLOR
MAX BRIGHT
BLACK LEVEL
adjustment "R" level
Normal
B
228
repeat 1~2 steps.
Color mode while the
Normal mode while the
following is selected
G
R
210
186
<Specification>
Video color tempertaure (Normal)
x=0.285 0.005
y=0.293 0.005
(Color Temp:9300 K 0MPCD)
+
-
+
-
+
-
o
13
SSH2442
Use White pattern

Item Color Temperature Adjustment (Cool) Adj point
Adjustment Preparations Adjustment Procedures Remarks
(1)
(2)
(3)
Set info Fctory Adjustment mode
Input : RGB 1 VGA
Signal : VGA (31.5KHz) 0.7V
Windows ratio : 100%
Confirm that the screen size is
“Full”
(1)
(2)
(3)
(4)
Perform the following
adjustment with remote control
Set the CRT analyzer (CA100)
at center of panel
After receiving pc signal, set
down the one among
adjustments and adjustment the
value.
Start the FACTORY mode,
1. Use ϧϰ/ ENTER button
select “Cool" mode.
2. Push and adjustment
3. If adjutment "G" and "B" please
Envirment:
20lux or less
Color temperature should
be adjusted under the
condition in which the
screen is 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.
FACTORY MODE LP8SA
WARM
NORMAL
COOL
NV CLEAR
AUTO COLOR
MAX BRIGHT
BLACK LEVEL
FACTORY MODE LP8SA
WARM
NORMAL
COOL
NV CLEAR
AUTO COLOR
MAX BRIGHT
BLACK LEVEL
adjustment "R" level
Normal
B
228
repeat 1~2 steps.
Color mode while the
Cool mode while the
following is selected
G
R
210
186
<Specification>
Video color tempertaure (Cool)
x=0.268 0.005
y=0.283 0.005
(Color Temp:12000 K 0MPCD)
+
-
+
-
+
-
o
Use White pattern
14
SSH2442

15
Item
Adjustment Preparations
Turn on the set and perform
pre-heat run more than 1
min with burn-in screen.
Receive full back pattern
signal
(or Video silence signal;
it will be automatically
turned off after a few
seconds by power save
function.)
Connect voltmeter leads
to Vs (or Va) and GND
test points of the power unit.
(1)
(2)
(3)
(1)
(2)
(3)
Adjustment Procedures
Adj. point
Refer the figure below
Remarks
Power Unit Vs, Va Adjustment
Turn Vs ADJ to adjust Vs voltage
to be within ±0.1V of the value
specified in the label on the panel.
Turn Va ADJ to adjust Va voltage
to be within ±0.2V of the value
specified in the label on the panel.
Reconfirm that Vs voltage remains
within ±0.1V of the specified value.
Readjust if it’ s outside of the margin.
Label example
<LOT>N6
Vs= 185.0V
Va=65.0V
Permissive level of voltage in
sufficient time of heat-run
performed is:
Vs: within±0.45V
Va: within±0.55V
Label position (Reference)
Upper right
If it’ s hard to read the
voltage value because of the
wiring,
highlight it in advance to be
visible.
Vs
GND
Power unit for WVGA
Vs ADJ
Va
Va ADJ
SSH2442

Yes
Yes
Yes
Yes
Speaker
Picture is displayed. But no sound
Are the voltages
of the Formatter PWB? No
Formatter PWB
GND
No
Are there signals
on Speaker Terminals?
Speaker L or R PWB
Are the signals
applied to CN801,CN802
of the Formatter PWB? No
Formatter PWB or
Video PWB
No
Yes
Power cannot be turned on (LED does not light)
Is the input voltage
applied to Power supply unit?
(
CN61
,
)
applied to CN800
+12V applied to CN800 ?
AC inlet Power switch AC Fuse
F950 T6.3AH 250V
Are the voltages
applied to CN63 pins
and CNPPS pins
of Power supply unit ? [CN63] +5V [CNPPS] +30V
+3.3V + 5V
+12V
+10V
Formatter PWB
Power supply unit
No
Yes
FILTER PWB
CN801 L ch
CN802 R ch
Check
Speaker terminal and
Speaker cord.
Unlocked
Check
Locked No sound
Are the voltage
(When CN800 is
disconnected.)
Power supply
unit
No
Flow Chart
16

Yes
No
65V
185V
GND No
+3V
GND
Yes
No
red
green/orange
No
Yes
+5V
Yes
No
Yes
Are the voltages
of CN64 pin
on the Power supply unit
correct?
Is the voltage
of CN68 pin
on the Power supply unit
correct ?
Panel Module
Panel Module
Power supply unit
Is the LED red or
green/orange?
Picture is not dis
p
la
y
ed
(
LED is li
g
htin
g)
Is Voltage
applied to CN63 pin
of the Power supply unit?
Power supply
unit
Is the voltage
of CN68 pin
on the Power supply unit
5V?
Power supply unit
Is it the power
saving mode?
Formatter PWB
Input signal Cable
or Formatter PWB
SSH2442
17

18
NO POWER
FUSE
STB
See
NO PICTURE & SOUND Q101,R005
check volta e
D010(K)-J28
D151,IC101,
Q104,Q108,
etc
impedance
check D001
impedance check
Q003/Q004
impedance
check Q201
impedance
check Q301
D001
Q003,Q004,
etc
Q201,IC201
D210,Q200,etc
Q301,Q300
D310,etc
NO Vs,Va,Vcc,STB
[ POWER BOARD ]
over 130V
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
NO PICTURE
& SOUND
STB
Vcc
See NO
PICTURE
IC201,Q200,PC201,
PC202,etc
See NO POWER
IC001,D005,D006,D007,
D008,PC003,etc
NG
NG
OK
OK
NO Vs,Va,Vcc
open connector
CN806,CN807
impedance
check Vs LINE
impedance
check Vs LINE
PDP modul
e
Vs NG
impedance
check Va LINE
open connector
CN807
impedance
check Va LINE
PDP module
Va NG
D351 D551
Va:no uprise
Vs:down after up
Vs:no uprise
Va:down after up
SW ON
Q300,I301,D310
PC301,PC302,
etc
Q501,Q500,D510,
Q502,PC501,
PC502,etc
NG
NG
NG
OK
OK
OK
NO PICTURE NO Vs,Va
check volta e
J61-J28
over 300V
under 300V
NG
OK
NG
under 130V
SSH2442

19
SSH2442
7. Block diagram
5 5
4 4
3 3
2 2
1 1
D D C C BB AA
AC in
IC202
Va Vs 6V 30V 12V
10V Vcc5.1V
Power go Power off
CHOP REG
CHOP
Vs(80) Vs(60)
LV T201 IC201/Q201 T301 IC301/Q301 T501 Q501 STB T101 IC101/Q101
RL002
RL001 Bridge D001
PFC IC001 Q003/4 L005 AC00V 320V AC200V 370V
C016 C201
C101
AC-detect
MPF7414 Block Diagram
D010/D011
D020/D021
<Doc> <Title>
A4
11Wednesday, June 02, 2004
Title Size Document Number Rev Date: Sheet of

Block diagram
Block diagram-
-PDP ( US version )
PDP ( US version )
Video A
Decoder
VPC3230
G 42”
(Plasma)
Panel
Driver
Video 1
Input
IR
Audio-AMP
TDA2020
D-SUB/DVI
Audio
I/O
RGB-D-SUB
INTPUT
Video B
Decoder
VPC3230
Keypad
De-
interlacer
FLI2300 LVDS
FRAME
DDR
HY50128
F ASH ROM
29 V040B
Y/Cb/Cr
TUNER 1
VO DECORD
MSP34XX
TUNER 2
50 pin
con
FRAME
HDTV
Y/Pb/Pr
RS-232
DVI
INTPUT
Video 2
Input
S-VIDEO 2
MUXAD8186
SM5301 PF
S-VIDEO 1
V-CHIP
Z86229
CXA2069
AV/SW
M-3D-COMBF
TUNER-BOX
OUTPUT
VIDEO/AUDIO
DIPP
GENESIS
GM1601
De-interlace
VDS
transmitter
ADC
DVI
OSD
MCU
20
SSH2442
V-CHIP
Z86229