This service manual is intended for qualified service technicians ; it is not meant for the casual doit-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been
trained to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely,
you should not risk trying to do so and refer the repair to a qualified service technician.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to
cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts
must be of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces
de remplacement doivent avoir la même désignation.
SAFETY PRECAUTIONS
NOTICE : Comply with all cautions and safety related notes
located on or inside the cabinet and on the chassis.
The following precautions should be observed :
1. When service is required, even though the PDP UNIT an
isolation transformer should be inserted between the power line
and the set in safety before any service is performed.
2. When replacing a chassis in the set, all the protective devices
must be put back in place, such as barriers, nonmetallic knobs,
adjustment and compartment covershields, isolation resistorcapacitor, etc.
3. When service is required, observe the original lead dress. Extra
precaution should be taken to assure correct lead dress in the
high voltage circuitry area.
4. Always use the manufacture's replacement components.
Especially critical components as indicated on the circuit
diagram should not be replaced by other manufacture's.
Furthermore where a short circuit has occurred, replace those
components that indicate evidence of overheating.
5. Before returning a serviced set to the customer, the service
technician must thoroughly test the unit to be certain that it is
completely safe to operate without danger of electrical shock,
and be sure that no protective device built into the set by the
manufacture has become defective, or inadvertently defeated
during servicing. Therefore, the following checks should be
performed for the continued protection of the customer and
servicetechnician.
6. Perform the following precautions against unwanted radiation
and rise in internal temperature.
• Always return the internal wiring to the original styling.
• Attach parts (Gascket, Ferrite Core, Ground, Rear Cover,
Shield Case etc.) surely after disassembly.
7. Perform the following precautions for the PDP panel.
• When the front case is removed, make sure nothing hits the
panel face, panel corner, and panel edge (so that the glass does
not break).
• Make sure that the panel vent does not break. (Check that the
cover is attached.)
• Handle the FPC connected to the panel carefully.
Twisting or pulling the FPC when connecting it to the
connector will cause it to peel off from the panel.
8. Pay attention to the following.
• When the front case is removed, infrared ray is radiated and
may disturb reception of the remote control unit.
• Pay extreme caution when the front case and rear panel are
removed because this may cause a high risk of disturbance to
TVs and radios in the surrounding.
2-1
3
Leakage Current Cold Check
With the AC plug removed from an AC power source, place a
jumper across the two plug prongs. Turn the AC power switch on.
Using an insulation tester (DC 500V), connect one lead to the
jumpered AC plug and touch the other lead to each exposed metal
part (input/output terminals, screwheads, metal overlays, control
shafts, etc.), particularly any exposed metal part having a return
path to the chassis. Exposed metal parts having a return path to
the chassis should have a minimum resistor reading of 0.3MΩ
and a maximum resistor reading of 5MΩ. Any resistor value
below or above this range indicates an abnormality which requires
corrective action. Exposed metal parts not having a return path to
the chassis will indicate an open circuit.
Leakage Current Hot Check
Plug the AC line cord directly into an AC power source (do not
use an isolation transformer for this check).
Turn the AC power switch on.
Using a "Leakage Current Tester (Simpson Model 229
equivalent)", measure for current from all exposed metal parts of
the cabinet (input/output terminals, screwheads, metal overlays,
control shaft, etc.), particularly any exposed metal part having a
return path to the chassis, to a known earth ground (water pipe,
conduit, etc.). Any current measured must not exceed 0.5mA.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in PIONEER set have
special safety related characteristics. These are often not evident
from visual inspection nor the protection afforded by them
necessarily can be obtained by using replacement components
rated for higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in this
Service Manual.
Electrical components having such features are identified by
marking with a on the schematics and on the parts list in this
Service Manual.
The use of a substitute replacement component which dose not
have the same safety characteristics as the PIONEER
recommended replacement one, shown in the parts list in this
Service Manual, may create shock, fire or other hazards.
Product Safety is continuously under review and new instructions
are issued from time to time. For the latest information, always
consult the current PIONEER Service Manual. A subscription to,
or additional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.
Reading should
not be above
0.5mA
Earth
ground
Device
under
test
Also test with
plug reversed
(Using AC adapter
plug as required)
Leakage
current
tester
Test all
exposed metal
surfaces
AC Leakage Test
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE SET TO THE CUSTOMER.
4
2-2
2-3
5
6
2-4
[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise.
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws.
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.
0 Safe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.
2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.
COMPONENT2 input. Select one of them under
“BNC INPUT”.
3
*
Compatable with HDCP.
Supported Signals
• 640 x 480P @ 59.94/60Hz• 1920 x 1080I @ 50Hz
• 1280 x 720P @ 59.94/60Hz• 720 x 576P @ 50Hz
• 1920 x 1080I @ 59.94/60Hz• 1440 (720) x 576I @ 50Hz
• 720 x 480P @ 59.94/60Hz
• 1440 (720) x 480I @ 59.94/60Hz
Note: In some cases a signal on the plasma monitor may not be displayed
properly. The problem may be an inconsistency with standards from
the source equipment (DVD, Set-top box, etc...). If you do experience
such a problem please contact your dealer and also the manufacturer of
the source equipment.
RS-232CD-sub 9-pinx 1
Sound output8W+8W at 6 ohm
Power SupplyAC100-240V 50/60Hz
Current Rating4.5A (maximum)
Power Consumption 270W (standby 0.9W)
Dimensions40 (W) x 24 (H) x 3.5 (D) inches
1018 (W) x 610 (H) x 89 (D) mm
Weight62.8 lbs / 28.5 kg (without stand)
Environmental Considerations
Operating
Temperature
0°C to 40°C / 32°F to 104°F
Other Features Motion compensated 3D Scan Converter (NTSC,
PAL, 480I, 576I, 525I, 625I, 1035I, 1080I), 2-3
pull down Converter (NTSC, 480I, 525I, 1035I,
1080I (60Hz)), 2-2 pull down Converter (PAL,
576I, 625I, NTSC, 480I, 525I), Digital Zoom
Function (100-900% Selectable), Video Wall 4-25
multi screen, Self Diagnosis, Image Burn
reduction tools (ABL LOCK1~3, INVERSE,
WHITE, ORBITER (Auto1,2/Manual), SCREEN
WIPER), Color Temperature select (high/mid/mid
low/low, user has 4 memories), Key lock (Except
power SW), Auto Picture, Input Skip, Color
Detail Adjustment, Low Tone (3 mode), Auto ID,
Programmable Timer, Gamma Correction
(4 mode), Loop through interface, Plug and play
(DDC1, DDC2b, PC3: DDC2b only)
35
1018 (40")
1
(1.38")
610 (24")
Units are in mm
89
(3.5")
54
(2.13")
(inch)
The features and specifications may be subject to change without
notice.
The 5-BNC connectors are used as PC2 and
COMPONENT2 input. Select one of them under
“BNC INPUT”.
3
Compatable with HDCP.
*
Supported Signals
• 640 x 480P @ 59.94/60Hz• 1920 x 1080I @ 50Hz
• 1280 x 720P @ 59.94/60Hz• 720 x 576P @ 50Hz
• 1920 x 1080I @ 59.94/60Hz• 1440 (720) x 576I @ 50Hz
• 720 x 480P @ 59.94/60Hz
• 1440 (720) x 480I @ 59.94/60Hz
Note: In some cases a signal on the plasma monitor may not be displayed
properly. The problem may be an inconsistency with standards from
the source equipment (DVD, Set-top box, etc...). If you do experience
such a problem please contact your dealer and also the manufacturer of
the source equipment.
3-2
9
TABLE OF SIGNAL SUPPORTED
PDP-424MV/LUC
Supported resolution
•
When the screen mode is NORMAL, each signal is converted to a 640 dots 480 lines signal. (Except for *
• When the screen mode is FULL, each signal is converted to a 853 dots 480 lines signal. (Except for *3)
*1 Only when using a graphic accelerator board that is capable of displaying 852480.
*2 Display only 400 lines with the screen center of the vertical orientation located at the center.
*3 The picture is displayed in the original resolution. The picture will be compressed for other signals.
*4 Aspect ratio is 5:4. This signal is converted to a 600 dots480 lines signal.
*5 Normally the RGB select mode suite for the input signals is set automatically. If the picture is not displayed properly, set the
RGB mode prepared for the input signals listed in the table above.
*6 To connect the monitor to Macintosh computer, use the monitor adapter (D-Sub 15-pin) to your computer's video port.
*7 Other screen modes (ZOOM and WIDE) are available as well.
*8 When viewing a moving picture at a vertical frequency greater than 65Hz, the picture may sometimes be unstable (jumpy).
If this occurs, please set the refresh rate of the external equipment to 60Hz.
To view 480I@60Hz (480 interlaced lines, 60Hz refresh rate) or 576I@50Hz (576 interlaced lines, 50Hz refresh rate) when
sync polarity is “Sync on Green”, set “RGB SELECT” to “MOTION”.
*9 CVT standard compliant.
NOTE:
• While the input signals comply with the resolution listed in the table above, you may have to adjust the position and size of the
picture or the fine picture because of errors in synchronization of your computer.
• This monitor has a resolution of 853 dots 480 lines. It is recommended that the input signal should be VGA, wide VGA, or
equivalent.
• With digital input some signals are not accepted.
• The sync may be disturbed when a nonstandard signal other than the aforementioned is input.
• If you are connecting a composite sync signal, use the HD terminal.
What is HDCP/HDCP technology?
HDCP is an acronym for High-bandwidth Digital Content Protection. High bandwidth Digital Content Protection (HDCP) is a system
for preventing illegal copying of video data sent over a Digital Visual Interface (DVI).
If you are unable to view material via the DVI input, this does not necessarily mean the PDP is not functioning properly. With the
implementation of HDCP, there may be cases in which certain content is protected with HDCP and might not be displayed due to the
decision/intention of the HDCP community (Digital Content Protection, LLC).
•“IBM PC/AT” and “VGA” are registered trademarks of International Business Machines, Inc. of the United States.
•“Apple Macintosh” is a registered trademark of Apple Computer, Inc. of the United States.
4-2
11
PDP-42MVE1/LDFK & /TXGB
Supported resolution
•
When the screen mode is NORMAL, each signal is converted to a 640 dots 480 lines signal. (Except for *
•When the screen mode is FULL, each signal is converted to a 853 dots 480 lines signal. (Except for *3)
*1 Only when using a graphic accelerator board that is capable of displaying 852480.
*2 Display only 400 lines with the screen center of the vertical orientation located at the center.
*3 The picture is displayed in the original resolution. The picture will be compressed for other signals.
*4 Aspect ratio is 5:4. This signal is converted to a 600 dots480 lines signal.
*5 Normally the RGB select mode suite for the input signals is set automatically. If the picture is not displayed properly, set the
RGB mode prepared for the input signals listed in the table above.
*6 To connect the monitor to Macintosh computer, use the monitor adapter (D-Sub 15-pin) to your computer's video port.
*7 Other screen modes (ZOOM and WIDE) are available as well.
*8 When viewing a moving picture at a vertical frequency greater than 65Hz, the picture may sometimes be unstable (jumpy).
If this occurs, please set the refresh rate of the external equipment to 60Hz.
To view 480I@60Hz (480 interlaced lines, 60Hz refresh rate) or 576I@50Hz (576 interlaced lines, 50Hz refresh rate) when
sync polarity is “Sync on Green”, set “RGB SELECT” to “MOTION”.
*9 CVT standard compliant.
NOTE:
• While the input signals comply with the resolution listed in the table above, you may have to adjust the position and size
of the picture or the fine picture because of errors in synchronization of your computer.
• This monitor has a resolution of 853 dots480 lines. It is recommended that the input signal be VGA, wide VGA or
equivalent.
• With digital input some signals are not accepted.
• The sync may be disturbed when a nonstandard signal other than the aforementioned is input.
• If you are connecting a composite sync signal, use the HD terminal.
What is HDCP/HDCP technology?
HDCP is an acronym for High-bandwidth Digital Content Protection. High bandwidth Digital Content Protection (HDCP) is a system
for preventing illegal copying of video data sent over a Digital Visual Interface (DVI).
If you are unable to view material via the DVI input, this does not necessarily mean the PDP is not functioning properly. With the
implementation of HDCP, there may be cases in which certain content is protected with HDCP and might not be displayed due to the
decision/intention of the HDCP community (Digital Content Protection, LLC).
*“IBM PC/AT” and “VGA” are registered trademarks of International Business Machines, Inc. of the United States.
*“Apple Macintosh” is a registered trademark of Apple Computer, Inc. of the United States.
4-4
13
PANEL FACILITIES
PDP-424MV
Front View
7
1 Power ( )
Turns the monitor’s power on and off.
2 Remote sensor window
Receives the signals from the remote control.
3 STANDBY/ON indicator
When the power is on ............................. Lights green.
When the power is in the standby mode ... Lights red.
4 INPUT/EXIT
Switches the input.
The available inputs depend on the setting of “BNC
INPUT”, “RGB SELECT” and “DVI SET-UP”.
Functions as the EXIT buttons in the On-Screen
Display (OSD) mode.
456
5 LEFT/– and RIGHT/+
6 VOLUME
7 MENU/SET
132
Functions as the CURSOR (/ ) buttons in the On-
Screen Display (OSD) mode.
and
Adjusts the volume. Functions as the CURSOR (▲/
▼) buttons in the On-Screen Display (OSD) mode.
Sets the On-Screen Display (OSD) mode and displays
the main menu.
WARNING
The Power on/off switch does not disconnect the plasma
display completely from the supply mains.
14
5-1
Rear View/Terminal Board
A AC IN
Connect the included power cord here.
B EXT SPEAKER L and R
Connect speakers (optional) here. Maintain the correct
polarity. Connect the
EXT SPEAKER terminal and the (negative)
speaker wire to the
both LEFT and RIGHT channels.
Please refer to your speaker’s owner’s manual.
C VIDEO1, 2, 3 (BNC, RCA, S-Video)
Connect VCR’s, DVD’s or Video Cameras, etc. here.
VIDEO1 can be used for Input or Output
D AUDIO1, AUDIO2, AUDIO3
These are audio input terminals.
The input is selectable. Set which video image to allot
them from the SOUND menu screen.
E COMPONENT1
Connect DVD’s, High Definition or Laser Discs, etc.
here.
F PC2/COMPONENT2
PC2:You can connect an analog RGB signal
and the syncronization signal.
COMPONENT2
:You can connect DVDs, High
Definition sources, Laser Discs, etc.
here.
This input can be set for use with an
RGB or component source
(positive) speaker wire to the
EXT SPEAKER terminal on
G PC1 (mini D-Sub 15pin)
Connect an analog RGB signal from a computer, etc.
here. This input can be used for Input or Output
H PC3
IRS-232C
J REMOTE IN
K REMOTE OUT
* The 1/8 Stereo Mini cable must be purchased separately.
(DVI 24pin)
Connect a digital signal (TMDS) from a source with a
DVI output.
Never connect any component to this connector
without first consulting your Pioneer installation
technician.
This connector is used for plasma display setup
adjustments.
Connect the remote cable* to the remote control’s
remote jack to obtain wired remote control.
Connect the remote cable* to the REMOTE IN jack of
the other display monitor to obtain wired remote
control.
5-2
15
PDP-42MVE1/LDFK & /TXGB
Front View
7
1 Power ( )
Turns the monitor’s power on and off.
2 Remote sensor window
Receives the signals from the remote control.
3 STANDBY/ON indicator
When the power is on ............................. Lights green.
When the power is in the standby mode ... Lights red.
4 INPUT/EXIT
Switches the input.
The available inputs depend on the setting of “BNC
INPUT”, “RGB SELECT”, “D-SUB SELECT” and
“DVI SET-UP”.
Functions as the EXIT buttons in the On-Screen
Display (OSD) mode.
Note:
output signal, which is RGB with composite sync.
Your dealer can supply a special SCART cable, which will enable you to use the RGB with composite sync signal.
To obtain the special cable as well as for further information, please contact your dealer.
Please refer to page 19 for selection of the correct mode in the on-screen display.
This plasma monitor has the capasity to display images when connected to European DVD players with a SCART
456
5 LEFT/– and RIGHT/+
6 VOLUME
7 MENU/SET
132
Functions as the CURSOR ( / ) buttons in the OnScreen Display (OSD) mode.
and
Adjusts the volume. Functions as the CURSOR (/
) buttons in the On-Screen Display (OSD) mode.
Sets the On-Screen Display (OSD) mode and displays
the main menu.
WARNING
The Power on/off switch does not disconnect the plasma
display completely from the supply mains.
16
5-3
Rear View/Terminal Board
A AC IN
Connect the included power cord here.
B EXT SPEAKER L and R
Connect speakers (optional) here. Maintain the correct
polarity. Connect the
EXT SPEAKER terminal and the (negative)
speaker wire to the
both LEFT and RIGHT channels.
Please refer to your speaker’s owner’s manual.
C VIDEO1, 2, 3 (BNC, RCA, S-Video)
Connect VCR’s, DVD’s or Video Cameras, etc. here.
VIDEO1 can be used for Input or Output (see page
24).
D AUDIO1, AUDIO2, AUDIO3
These are audio input terminals.
The input is selectable. Set which video image to allot
them from the SOUND menu screen.
E COMPONENT1
Connect DVD’s, High Definition or Laser Discs, etc.
here.
F PC2/COMPONENT2
PC2:You can connect an analog RGB signal
and the syncronization signal.
COMPONENT2
:You can connect DVDs, High
Definition sources, Laser Discs, etc.
here.
This input can be set for use with an
RGB or component source (see page
17).
(positive) speaker wire to the
EXT SPEAKER terminal on
H PC3
IRS-232C
J REMOTE IN
K REMOTE OUT
(DVI 24pin)
Connect a digital signal (TMDS) from a source with a
DVI output.
Never connect any component to this connector
without first consulting your Pioneer installation
technician.
This connector is used for plasma display setup
adjustments.
Connect the remote cable* to the remote control’s
remote jack to obtain wired remote control.
Connect the remote cable* to the REMOTE IN jack of
the other display monitor to obtain wired remote
control.
Information
•For Y/CB/Cr, connect to the COMPONENT1 or PC2/
COMPONENT2 terminals.
•For SCART, this unit provides three ways to connect:
· SCART1: Connect R/G/B and composite sync. to
the PC2/COMPONENT2 terminals. (R, G, B and
HD connector)
· SCART2: Connect R/G/B to the COMPONENT2
terminals and composite sync. to the VIDEO1
terminal.
· SCART3: Connect R/G/B and composite sync. to
the PC1 terminal.
G PC1 (mini D-Sub 15pin)
Connect an analog RGB signal from a computer, etc.
here. This input can be used for Input or Output (see
page 24).
* The 1/8 Stereo Mini cable must be purchased separately.
17
5-4
Remote Control
1 POWER ON/STANDBY
Switches the power on/standby.
(This does not operate when STANDBY/ON indicator
of the main unit is off.)
2 RGB/PC
Press this button to select RGB/PC as the source.
RGB/PC can also be selected using the INPUT/EXIT
button on the monitor.
3 COMPONENT
Press this button to select COMPONENT as the source.
COMPONENT can also be selected using the INPUT/
EXIT button on the monitor.
4 VIDEO
Press this button to select VIDEO as the source.
→VIDEO1→ VIDEO2→ VIDEO3
7 EXIT
Press this button to exit the OSD controls in the main
menu. Press this button during the display of the sub
menu to return to the previous menu.
8 POINT ZOOM
Press this button to display the pointer.
9 ZOOM (+ /–)
Enlarges or reduces the image.
0
VOLUME (+/–)
Adjusts the sound volume.
- MUTING
Mutes the sound.
= SCREEN SIZE
Automatically detects the signal and sets the aspect ratio.
SCREEN SIZE button is not active for all signals.
~ DISPLAY
Displays the source settings on the screen.
! OFF TIMER
Activates the off timer for the unit.
@ AUTO SET UP
Press this button to adjust PHASE, CLOCK, Position,
and Contrast automatically, or to switch the screen size
to ZOOM mode automatically with the superimposed
caption displayed fully only when the picture contains
dark areas above and below the picture.
# ID NO. SET
Set the ID number in the remote control. The remote
control can then be used only for a display with the
same ID number. When several displays are used
together they can be controlled individually.
$ CLEAR
Clears the number set by the ID NO. SET button.
% Remote control signal transmitter
Transmits the remote control signals.
^ Remote Jack
Insert the plug of the remote cable (The 1/8 Stereo
Mini cable) here when using the supplied remote
control in the wired condition.
VIDEO can also be selected using the INPUT/EXIT
button on the monitor.
5 MENU/SET
Press this button to access the OSD controls.
Press this button during the display of the main menu
to go to the sub menu.
6 CURSOR ( / /
Use these buttons to select items or settings and to
adjust settings.
18
/ )
5-5
PDP-424MV
PDP-42MVE1/LDFK, /TXGB
PARTS LIST
NOTES:
Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
The mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
Screws adjacent to mark on product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions, apply as you think it appropriate.)
Reference Nos. indicate the pages and Nos. in the service manual for the base model.
7
and
PDP-424MV/LUC and PDP-42MVE1/LDFK, /TXGB are constructed the same except for the following:
2. Points of failure diagnosis for a Board Assy (PKG)
*
Power source please do measurement of each ohmic value by status of OFF.
3. Replacement method of a Board Assy (PKG)
and notes on replacement
4. Adjustments after replacement of parts in the module
5. Operation check
1. List of tools required for repair
a) Phillips screwdriver: For detaching/reattaching PKGs
b) Antistatic wrist strap:
To be used when electronic components, such as PKGs, are to be handled
c) Signal generator (PC, etc.):For voltage adjustment and display check
d) Powe: For voltage adjustment and display check
f)Tester: For cable check, voltage adjustment, etc.
g) Cushion: To be used when the PKGs are to be replaced
Note: Be sure to wear a wrist strap when you detach/reattach PKGs (Board Assy) to protect
electronic components from being damaged by electrostatic charges.
Notes:• The version of a board assy (PKG) is indicated on the label on the board assy.
TYPE NAMEVERSION
• When replacing the scanning relay board assys (PKG-C), make sure that the PKG-U (PKG42B3E1)
and PKG-D (PKG42B3E2) of the same version are used, to ensure correct scanning timing.
3
Common relay PKG
Digital PKG
Common divergence PKG
9
Signal relay PKG (left)
4
Version label of the board assy (PKG)
• Part name
• Serial number
• HW version • SW version
High voltage PKG
Signal relay PKG (right)
5
• Part name
• Serial number
• Version number
6
8
7
Scanning relay PKG-D
24
Digital PKG
Other PKG
7-2
Compatible table of the board version
Part Name of PKG
High voltage PKG
Common divergence PKG
Common relay PKG
Signal relay PKG (left)
Signal relay PKG (right)
Scanning relay PKG-U
Scanning relay PKG-D
Digital PKG
Target Version
Compatible Version
Conditions
Remarks
Note: By referring to the table on compatible versions of the board assys, make sure that board
assys of compatible versions are used.
7-3
25
2. Points of failure diagnosis for a Board Assy (PKG)
The fuses and/or fusible resistors shown in the photos below may be blown by electric
surges caused by a failure. In such a case, replace the corresponding PKG.
Failure diagnosis of the Scanning PKG
Fusible resistor (R12) located
at the upper-left corner of the
Scanning PKG: Approx. 1.0 Ω
(1/2 W)
Fusible resistor (R29) located
at the upper-left corner of the
Scanning PKG: Approx. 4.7 Ω
(1/4 W)
OK: Short-
circuited,
NG: Open
Glass fuses (F1 and F2)
located at the upper-left
corner of the Scanning
PKG
OK: Short-
circuited,
NG: Open
Fusible resistor (R108A)
located at the lower-right corner
of the Scanning PKG: Approx.
2.2 Ω (1 W)
Fusible resistor (R113) located
at the lower-right corner of the
Scanning PKG: Aapprox. 4.7 Ω
(2 W)
OK: Short-
circuited,
NG: Open
Fusible resistor (R111) located
at right center of the Scanning
PKG: Approx. 10 Ω (1 W)
Failure diagnosis of the Power HIC on the Scanning PKG
D
(58~62)
E
(53~56)
F
(47~51)
G
(42~45)
H
(37~40)
I
(32~35)
PH2311(rear view)
PH2311
Note: A, D, and E are ground.
1
11
9
13
A
20
B
C
(14~15)
(23~26)
(28~31)
Result:
OK: k Ω or more,
NG: Short-circuited
OK: Short-
circuited,
NG: Open
Check points
Between A and B
Between B and H
Between C and I
Between D and E
Between F and G
26
PH2312
A
(59~62)
B
(54~57)
52
49
C
E
G
I
(42)
(38)
(34)
(46)
D
(43)
F
(40)
H
(35)
J
(32)
PH2312(rear view)
Note: C and G are ground.
7-4
1
8
11
27
30
31
Check points
Between A and B
Between C and D
Between E and F
Between G and H
Between I and J
Result:
OK: k Ω or more,
NG: Short-circuited
Failure diagnosis of the Power HIC on the Common PKG
1
11
9
20
OK: Short-
circuited,
NG: Open
OK: Short-
circuited,
NG: Open
Failure diagnosis of the Scanning IC
Check with a tester the resistance value between any pins indicated as NEGA and POSI of the
connector in the photos below. If a positive and a negative pin of the connector on the Scanning
Relay PKGs are short-circuited and remains short-circuited even after the connectors on the
Scanning PKG and Scanning Relay PKG are disconnected, the Scanning IC on the Scanning Relay
PKG is in failure.
Failure diagnosis of the Common PKG
Glass fuses (F1 and F2) at
the upper-right corner of
the Common PKG
Fusible resistor (R101) at the
lower-right corner of the Common
PKG: Approx. 2.2 Ω (1 W)
A
(13~16)
B
(23~26)
C
(28~31)
D
(58~62)
E
(53~56)
F
(47~51)
G
(42~45)
H
(37~40)
I
(32~35)
Check points
Check points
Between A and B
Between B and H
Between C and I
Between D and E
Between F and G
OK: k Ω or more,
NG: Short-circuited
Between any pins of
NEGA and POSI blocks
PH2311
NEGA
NEGA
POSI
POSI
NEGA
NEGA
POSI
POSI
Scanning Relay PKG
(upper connector)
Scanning PKGScanning PKG
Scanning Relay PKG
(lower connector)
PH2311
(rear view)
Result:
OK: k Ω or more,
NG: Short-circuited
Note: A and D are ground.
7-5
27
Failure diagnosis of the Data HIC
Failure symptom: The image in any block of the screen is not displayed.
Check with a tester between Pin 5 or 6 (Vd line of Data IC)
and ground of each Signal Relay PKG.
OK: Open
NG: Short-
circuited,
CN2
CN8CN8CN2
CN8
CN3
CN8
CN3
Failure diagnosis of the Digital PKG
Chip fuse (FU701) at the
upper-right corner of the digital
PKG
CN8
28
7-6
OK: Short circuited,
NG: Open
3. Replacement method for a Board Assy (PKG) and notes on replacement
Preparation
Place a cushion on the workbench and set the module to be repaired on it.
Note: With the glass surface facing downward, be sure that the entire glass surface is
against the cushion.
Common Branch
PKG (upper): One
connector
Common board:
10 connectors
Flat cable
(longitudinal type)
Flat cable
(horizontal type 1)
Flat cable
(horizontal type 2)
Cable type
Digital PKG: 8
connectors
Scanning PKG:
8 connectors
Common Branch
PKG (lower): One
connector
Signal Relay PKG (upper
left): 7 connectors
Signal Relay PKG (upper
center): 10 connectors
Signal Relay PKG
(upper right): 8 connectors
Signal Relay PKG
(lower right): 8 connectors
Signal Relay PKG (lower
center): 10 connectors
Signal Relay PKG (lower
left): 8 connectors
Scanning Relay PKG
(upper): 5 connectors
Scanning Relay PKG
(lower): 5 connectors
Disconnection of connectors and cables
Disconnect all the connectors on the PKG to be repaired.
(When a Signal Relay PKG is to be removed, remove the heat sink beforehand.)
Recovery Relay PKG
Lock.Lock.Lock.Lock.
Unlock.Unlock.Unlock.Unlock.
7-7
29
How to remove/reattach the Board Assy (PKGs)
Notes:· Be sure not to drop a screwdriver or screw on a PKG or a cable.
· When removing/reattaching a screw, be sure not to leave any tiny metal shavings, because
they may cause a failure.
· Before removing Signal Relay PKGs, remove the heat sink.
· Be sure not to apply any stress to a PKG, connector, or cable when reattaching them.
· Reattach Signal Relay PKGs before reattaching the heat sink.
Heat sink: 17 screws
Common Branch PKG
(upper): One screw
Common PKG: 8 screws
Common Branch PKG
(lower): One screw
Signal Relay PKG
(upper left): 4 screws
Digital PKG:
4 screws
Signal Relay PKG
(lower left): 4 screws
Signal Relay PKG (upper
center): 5 screws
Recovery Relay PKG :11screws
Signal Relay PKG
(lower center): 5 screws
Signal Relay PKG (upper
right): 5 screws
Scanning PKG: 9 screws
Signal Relay PKG
(lower right): 5 screws
Confirmation of connector connection
Check whether or not the connectors indicated by circles are correctly connected.
Scanning Relay PKG
(upper): 6 screws
Scanning Relay PKG
(lower): 5 screws
Heat sink: 17 screws
Signal Relay PKG
(upper left): 7 connectors
Common board:
10 connectors
Digital PKG:
8 connectors
Signal Relay PKG (lower
left): 8 connectors
Signal Relay PKG (upper
center): 10 connectors
Common branch PKG
Signal Relay PKG (lower
center): 10 connectors
Signal Relay PKG (upper
right): 8 connectors
Scanning PKG:
8 connectors
Signal Relay PKG (lower
right): 8 connectors
Scanning Relay PKG
(upper): 5 connectors
Scanning Relay PKG
(lower): 5 connectors
30
7-8
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