Sony PlasmaPro PFM 42V1 User manual

Plasma Monitors
Models:
PFM42V1
PFM42X1
FWD42PV1
FWD50PX1
FWD50PX2
Triage and Troubleshooting
Course: PDP-04
TTS Guide
Plasma Panel Monitors
Triage & Troubleshooting Guide
PFM42V1 PFM42X1 FWD42PV1 FWD50PX1 FWD50PX2

PDP-04 i
Panel Distortion Diagrams ................................................. 20
FWD42PV1 Triage & Troubleshooting .............................. 24
Overall Component Block Diagram ................................... 24
PCB Location Diagram ...................................................... 25
Triage Chart ....................................................................... 26
FWD-42PV1 VS, VA, -Vy, Vsc Adjustments ....................... 27
FWD-42PV1 YDT & YDB Resistance Check ..................... 28
Panel Distortion Diagrams ................................................. 29
FWD50PX1 Triage & Troubleshooting .............................. 33
Overall Component Block Diagram ................................... 33
PCB Location Diagram ...................................................... 34
Triage Chart ....................................................................... 35
FWD-50PX1 Vsus & VADR Check .................................... 36
FWD-50PX1 YDT & YDB Resistance Check ..................... 37
Panel Distortion Diagrams ................................................. 38
FWD50PX2 Triage & Troubleshooting .............................. 42
Overall Component Block Diagram ................................... 42
PCB Location Diagram ...................................................... 43
Triage Chart ....................................................................... 44
FWD-50PX2 VS, VA, -Vy, Vsc Adjustments ....................... 45
FWD-50PX2 YDT & YDB Resistance Check ..................... 46
Panel Distortion Diagrams ................................................. 47
General PFM & FWD Plasma Monitor Information ............ 2
General Plasma Panel Block Diagram ................................ 2
Service Modes and Adjustments ..................................... 3
Accessing & Navigating Service Modes .............................. 3
PFM42V1, PFM42X1, FWD42PV1, FWD50PX2 ........... 3
FWD50PX1 .................................................................... 4
Place unit in Standby Mode ..................................... 4
Board Replacement & Adjustments ................................. 5
Power Supplies ................................................................ 5
G-Board ............................................................................... 5
Ysus Board .......................................................................... 5
Plasma Panel Voltage Label ................................................ 5
PFM42V1 Triage & Troubleshooting ................................... 6
Overall Component Block Diagram ..................................... 6
PCB Location Diagram ........................................................ 7
Triage Chart ......................................................................... 8
PFM-42V1 VS, VA, -Vy, Vsc Adjustments ............................ 9
PFM-42V1 YDT & YDB Resistance Check ........................ 10
Panel Distortion Diagrams ..................................................11
PFM42X1 Triage & Troubleshooting ................................. 15
Overall Component Block Diagram ................................... 15
PCB Location Diagram ...................................................... 16
Triage Chart ....................................................................... 17
PFM-42X1 VS, VA, -Vy, Vsc Adjustments .......................... 18
PFM-42X1 YDT & YDB Resistance Check ........................ 19
Table of Contents

PDP-04 2
General PFM & FWD Plasma Monitor Information
Control Board
X-Board
X-Board
Ysus-Board
Zsus-Board
(Address Board)
(Scan Board)
RGB/YUV
Input
DVI Input
Audio Input
(Address Board)
X-Board
X-Board
(Address Board) (Address Board)
COF (Chip On Film)
FPC (Flexible Printed Circuit)
FFC (Flat Flexible Cable)
IC
IC
IC
IC
IC
IC
IC
FFCFFC
Audio Input
Plasma
Panel
Address boards for
Dual Scan Models
No Connection
FWD50PX2
Model
FWD50PX2
Model Only
PFM 4 ICs
FWD 1 IC
A-Board
IC
Points for Disconnection
FWD Only
PFM Only
General Plasma Panel Block Diagram

PDP-04 3
General Information
Service Modes and Adjustments
Accessing & Navigating Service Modes
PFM42V1, PFM42X1, FWD42PV1, FWD50PX2
ENTER → 1 → 8 → 2
Use the Right & Left arrows to scroll through the main service mode
categories
Use the Up/Down arrows to scroll through the sub category items
Use the ENTER key to select and adjust a particular item
ASI510-Main
- Contrast - Gamma-G
- Bright - Gamma-B
- Sharp-Y - Noise
- Sharp-C - Black Expo
- Gamma-R - White Expo
- Contrast - Gamma-R
- Bright - Gamma-G
- Sharp-Y - Gamma-B
- Sharp-C
ASI510-Sub
- Contrast-R - Bright-B
- Contrast-G - Clock
- Contrast-B - Phase
- Bright-R - Auto
- Bright-G
ADC
- PC CutOFF - CONTG
- PC Gain - CONTB
- DTV CutOFF - ERTR
- DTV Gain - ERTG
- CONTR -ERTB
AD Calibration
- Contrast -IFC
- Bright - CBW
- Staturation - LDLY
- Hue - YOF
- Bright-CIP -LPF2
- Bright-CIP -PFC
-SATUR-CIP -PK
-TINT-CIP -DVCO
UPD64012
- MDIN-CONT - MDIN-SATUR
- MDIN-BRT - BOOST
- SURROUND - BALANCE
Audio
- COLOR TEMP -SUB-GAIN
-R-GAIN - SUB PK
- G-GAIN - SUB PFS
- B-GAIN - SUB CHROMA
- R-OFFSET -SUB SHARP
-G-OFFSET -SHARP THRD
-B-OFFSET -LARGE EDGE
-SUB-OFFSET -PBPR BAL
White Balance
- EEPROM INIT - Model No.
- Except WB - Fill 0xFF
- Only WB Init -S-Init Good
- Elapsed Time - Serial Mode
- Serial No.
Initalization
- AGING ON/OFF
- FAN ON/OFF
- INIT GOOD
For Test
- S-INIT GOOD
- FAN FOR TEST
- SELECT RS232
For Sony
- REFER.SAVE -SENSOR3
- SENSOR1
- SENSOR2
Temperature
- PC -DVI
- Video -Copy WB Data
- DTV
WB Default Data
A
A

PDP-04 4
General Information
FWD50PX1
Place unit in Standby Mode
Press DISPLAY → 5 → VOL + → POWER
Use the Right & Left arrows to scroll through the main service mode
categories
- EEPROM Initialize
- Chroma Decider
- AD Converter
- White Balance
- General
- Manual Control
- Preset Edit
- Service Staus
Service Mode
A/ D Converter Adjustment
White Balance Adjustment
Adjustments per Repair & Board Replacement
When any repair related to
picture quality is perfromed
- White Balance
When B board and/ or it’s
peripheral is replaced
- AD Converter
When PDP is replaced
- White Balance
When Q board and/ or it’s
peripheral is replaced
- AD Converter

PDP-04 5
General Information
Use the Up/Down arrows to scroll through the sub category items
Use the ENTER key to select and adjust a particular item
Board Replacement & Adjustments
G-Board – Adjustment VA, VS per the levels indicated on the label located
on the rear of the Plasma panel. Input and display a Full White raster for
adjustment.
Ysus Board – Adjustment VA, VS, Vsc, -Vy per the levels indicated on
the label located on the rear of the Plasma panel. Input and display a Full
White raster for adjustment.
Zsus Board – Adjustment VA, VS per the levels indicated on the label
located on the rear of the Plasma panel. Input and display a Full White
raster for adjustment.
Address Board – Adjustment VA, VS per the levels indicated on the label
located on the rear of the Plasma panel. Input and display a Full White
-Vy
Vsc
VA
VS
Label located on the back of the PDP
raster for adjustment.
Control Board - Adjustment VA, VS, Vsc, -Vy per the levels indicated on
the label located on the rear of the Plasma panel. Input and display a Full
White raster for adjustment.
Plasma Panel – Adjustment VA, VS per the levels indicated on the label
located on the rear of the Plasma panel. Adjust White Balance and AD
Calibration per the procedure found in the unit Service Manual. Input and
display a Full White raster for adjustment.
A or B Board – Adjust White Balance and AD Calibration per the procedure
found in the unit Service Manual.
Voltage Checks
Power Supplies
G-Board
VA – Reference label on the rear of Plasma Panel for correct voltage level
(Input and display a Full White raster for adjustment)
VS – Reference label on the rear of Plasma Panel for correct voltage level
(Input and display a Full White raster for adjustment)
Standby 5V
Operating 5V
Ysus Board
Vsc – reference label on the rear of Plasma Panel for correct voltage
level
-Vy – reference label on the rear of Plasma Panel for correct voltage
level
Plasma Panel Voltage Label

PDP-04 6
PFM42V1 Triage & Troubleshooting
Display Panel Assembly
Power to all Panel
Assb. PCBs
Power Audio
Video
A-Board
G-Board
Power
Supplies
Video Processing
Audio Processing
Main Microprocessor
Fan Control
AV Switching
Video Input 1 (DVI)
Video Input 2 (HD15)
L-Board
Audio
Amplifier
Control
AC
Input
Panel Pixel Control
Power Sw.
IR Sensor
LEDS
H2-Board
Switches
H1-Board
YDT
Board
&
Drive ICs
YDT
Board
&
Drive ICs
Zsus
Scan
Board
XR address Board
Composite Input
BKM-V10
Component Input
BKM-V11
Optional Video
Input Boards
Single Address
Scan
Fan 1
Fan 2
Fan 3
Temp. Sensor 1
Temp. Sensor 2
Temp. Sensor 3
Control
Control
Data
Data
Data
Control
PFM42V1
Ysus
Scan
Board
TR-Board
TL-Board
Control-Board &
XL address Board
XL address Brd
Section
Plasma
Panel
ACD
RELAY
VS ON
Key Control Lines
ACD – Detects the
presence of AC
input. No Red STBY
LED if missing.
Relay – Turns ON
AC input relay. No
Relay click if missing
.
VS ON – Turns ON
the VS power supply.
No VS voltage if
missing.
1
2
STBY 5V
3
CN801
5
Overall Component
Block Diagram

PDP-04 7
PFM42V1 Troubleshooting
Zsus
YDT
YDB
L-Brd
Ysus
XR -Board
F
A
N
#3
Fan #1
Fan #2
Top of TV
Rear View
Temp
Temp
A-Board
G-Board
Temp
H2-Brd
H1-Brd
PFM-42V1
Control-Board &
XL-Board
PCB Location Diagram

PDP-04 8
PFM42V1 Troubleshooting
Board Reference
PFM42V1
Amber LED ON Red LED ON
No Green LED
No Red LED
No Green LED
Stationary V or H
Line Failure
No Video (Green
LED) (No Primer)
No Video (Green
LED) (Primer OK) No Audio Part #
A��1-761-811-11
G  � � 1-761-810-11
Control Brd �1-761-875-11
Ysus Brd 1-761871-11
AC Input Check Condition
Plasma Panel *1-805-424-11
L1-761-812-11
*NOTE: Check the Panel Distortion diagrams on the following pages for further failure symptoms and component
replacement recommendations.
Primary Defective Part
� Secondary Defective Part
Triage Chart

PDP-04 9
PFM42V1 Troubleshooting
-Vy Adj.
VR6
Vsc Adj.
VR5
-Vy TP R8
Vsc TP R60
VS Adj.
RV203
VA Adj.
RV204
VA TP
CN806 pins 1 & 2
VS TP
CN806 pins 8,9,10
CN806
NOTE: Measure -Vy & Vsc
across resistors
GRND
Side
VS & VA
GRND
Ysus Board
G Board
GRND
Side
PFM-42V1 VS,
VA, -Vy, Vsc
Adjustments

PDP-04 10
PFM42V1 Troubleshooting
Ohms
~3MΩ
COM VΩ
Ohms
~3MΩ
COM VΩ
CAUTION: Remove power from
unit before making the
resistance measurement
NOTE:The resistance
measurement between the com
and VS voltage pads should
read approximately 3M ohms
with voltmeter leads oriented as
shown in the diagram. If the
voltmeter leads are reverse the
reading will be infinite.
A typical faulty reading is 500
ohms. Replace the YDT or YDB
if a low resistance is measured.
YDT
YDB
VOM
VOM
PFM-42V1 YDT & YDB
Resistance Check

PDP-04 11
PFM42V1 Troubleshooting
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Zsus
Scan
Board
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Zsus
Scan
Board
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Zsus
Scan
Board
Ysus
Scan
Board
Ysus
Scan
Board
Ysus
Scan
Board
Control Board &
XL address Board
Control Board &
XL address Board
Control Board &
XL address Board
No Video (Horizontal Black Bar) lower 1/2 of screen
1
st
– Confirm secure connections between Ysus and
YDB boards. Check Flex Cable between YDB and
Panel Assembly for physical damge.
Replace YDB board (connections & Flex Cable OK)
Replace Panel Assembly (Flex Cable NG)
No Video (Horizontal Black Bar) upper 1/2 of screen
1
st
– Confirm secure connections between Ysus and
YDT boards. Check Flex Cable between YDT and
Panel Assembly for physical damge.
Replace YDT board (connections & Flex Cable OK)
Replace Panel Assembly (Flex Cable NG)
No Video (Vertical Black Bar ) 1/2 of screen
1st – Confirm secure connections between Control /XL
Board and the Panel Assembly .
Replace Control/XL Board (connections & Flex Cable OK)
Replace Panel Assembly (Flex Cable NG)
Panel Distortion Diagrams

PDP-04 12
PFM42V1 Troubleshooting
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Zsus
Scan
Board
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Zsus
Scan
Board
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Zsus
Scan
Board
Ysus
Scan
Board
Ysus
Scan
Board
Ysus
Scan
Board
Control Board &
XL address Board
Control Board &
XL address Board
Control Board &
XL address Board
No Video (Vertical Black Bar ) 1/2 of screen
Single Vertical Black Line (right side of screen )
1st – Confirm secure
connections between XR and
Control/XL Board.
1st – Confirm secure connections
between XR and Control /XL
Boards .
2nd – Confirm 5V and VA
voltages to XR board .3rd – Replace boards in the
following order .
A) Replace XR -Board
B) Replace Control Board
Single Vertical Black Line (left side of screen )
2nd – Check the drive ICs on
the flex cables between the XR
and Panel for physical damage .
Replace Panel Assembly for
defective flex cable ICs
3rd – Replace XR board
1st – Confirm secure
connections between Control /
XL Board and the Panel
Assembly.
2nd – Check the drive ICs on
the flex cables between the
Control/XL board and Panel for
physical damage.
Replace Panel Assembly for
defective flex cable ICs
3rd – Replace Control/XL
board (Flex ICs OK)

PDP-04 13
PFM42V1 Troubleshooting
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Zsus
Scan
Board
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Zsus
Scan
Board
Ysus
Scan
Board
Ysus
Scan
Board
Control Board &
XL address Board
Control Board &
XL address Board
Single Horizontal Black Line (upper half of screen )
1st – Confirm secure
connections between YDT
and Panel Assembly.
Replace Panel Assembly if
flex cable is damaged
2nd – Check the drive ICs on
the YDT board for physical
damge.
Replace YDT board if Ics are
damaged .
Single Horizontal Black Line (lower half of screen )
1st – Confirm secure
connections between YDB
and Panel Assembly
2nd – Check the drive ICs on
the YDB board for physical
damage.
Replace YDB board if ICs are
damaged.
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
Control Board &
XL address Board
XR address Board
Zsus
Scan
Board
Ysus
Scan
Board
Note: One drive IC fails on the YDT or YDB board fails causing the
successive drive ICs to not function. This symptom (a Black Bar less-
than ½ the screen) can be located in the top or bottom half of the screen
depending on if the failed IC is on the YDT or YDB board .
Less-Than ½ Screen Horizontal Black Bar
1st – Replace the YDT or YDB
board depending on where the
horizontal black bar is located on
the screen.

PDP-04 14
PFM42V1 Troubleshooting
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Zsus
Scan
Board
Ysus
Scan
Board
Control Board &
XL address Board
No Video – Black Raster
1st – Check Flex cable connections
between Ysus & YDT/YDB boards.
Check VS and 5V power supplies to
Ysus board .
Check for screen Priming
Replace G-board (Volatge(s) NG)
Replace Ysus (Priming NG)
Replace Control/XL Board (Priming
OK)
2nd – Check connections
between Ysus and Control
boards are secure .
Connections & Voltages OK
A) Replace Ysus
B) Replace Control board
3rd – Check all voltages and
connections to Zsus board .
Replace Zsus (connections &
voltages OK)
Zsus
Scan
Board
YDB
Board
&
Drive
ICs
YDT
Board
&
Drive
ICs
XR address Board
Ysus
Scan
Board
Control Board &
XL address Board
Pixelization & Black Areas In Video
1st – Confirm connections and
power supply voltages (VS & 5V) to
Zsus board are secure .
Confirm Flex cable connections
between Zsus board and Panel .
2nd –
A) Replace Zsus board (all connections
and voltages OK )
B) Replace G-board (voltages NG)
C) Replace Plasma Panel (Flex cable NG)

PDP-04 15
PFM42X1 Triage & Troubleshooting
Display Panel Assembly
Power to all Panel
Assb. PCBs
Power Audio
Video
A-Board
G-Board
Control-Board
Video Processing
Audio Processing
Main Microprocessor
Fan Control
AV Switching
Video Input 2 (HD15)
L-Board
Audio
Amplifier
Control
AC
Input
Panel Pixel Control
Power Sw.
IR Sensor
LEDS
H2-Board
Switches
H1-Board
YDB
Board
&
Drive ICs
YDT
Board
&
Drive ICs
Zsus
Scan
Board
XLB address Board
XRB address Board
Composite Input
BKM-V10
Optional Video
Input Board
Dual Address
Scan
XLT address Board
XRT address Board
L
R
L
R
Fan 1
Fan 2
Fan 3
Temp. Sensor 1
Temp. Sensor 2
Temp. Sensor 3
Control
Control
Data
Data
Data
Fan 4
Control
Control
PFM42X1
Ysus
Scan
Board
Plasma
Panel
Power
Supplies
Video Input 1 (DVI)
Key Control Lines
ACD – Detects the
presence of AC
input. No Red STBY
LED if missing.
Relay – Turns ON
AC input relay. No
Relay click if missing
.
VS ON – Turns ON
the VS power supply.
No VS voltage if
missing.
ACD
RELAY
VS ON
1
2
STBY 5V
3
CN801
5
Overall Component
Block Diagram

PDP-04 16
PFM42X1 Troubleshooting
Zsus
YDT
YDB
L-Brd
Ysus
XRB -Board
Top of TV
Rear View
Temp
Temp
A-Board
XLB-Board
G-Board
XLT-Board
XRT-Board
Temp
Control-Board
Fan #4
Fan #2
Fan #3
Fan #1
H2-Brd
H1-Brd
PFM-42X1
PCB Location Diagram

PDP-04 17
PFM42X1 Troubleshooting
Board Reference
PFM42X1
Amber LED ON Red LED ON
No Green LED
No Red LED
No Green LED
Stationary V or H
Line Failure
No Video (Green
LED) (No Primer)
No Video (Green
LED) (Primer OK) No Audio Part #
A��1-761-970-11
G  � � 1-761-969-11
Control Brd �1-761-992-11
Ysus Brd 1-761-977-11
AC Input Check Condition
Plasma Panel *1-805-659-11
L1-761-971-11
*NOTE: Check the Panel Distortion diagrams on the following pages for further failure symptoms and component
replacement recommendations.
Primary Defective Part
� Secondary Defective Part
Triage Chart

PDP-04 18
PFM42X1 Troubleshooting
PFM-42X1 VS,
VA, -Vy, Vsc
Adjustments

PDP-04 19
PFM42X1 Troubleshooting
Ohms
~2MΩ
COM VΩ
Ohms
~2MΩ
COM VΩ
CAUTION: Remove power
from unit before making the
resistance measurement
NOTE:The resistance
measurement between the com
and VS voltage pads should
read approximately ~2MΩ
ohms with voltmeter leads
oriented as shown in the
diagram. If the voltmeter leads
are reverse the reading will be
~1MΩ.
A typical faulty reading is 500
ohms. Replace the YDT or YDB
if a low resistance is measured.
YDT
YDB
VOM
VOM
+
-
-
+
+
-
-
+
1.3MΩ
2.3MΩ
1.3MΩ
2.3MΩ
PFM-42X1 YDT & YDB
Resistance Check