Sony PFM-500A1WE Schematic
TROUBLE SHOOTING GUIDE
MODEL
.............. ......... ....................
DEST. CHASSIS NO. MODEL DEST. CHASSIS NO.
PFM-500A1WU US/CND
PFM-500A1WE AEP
.............. ......... ....................
MB-514
RM-921
PFM-500A1WU/WE Flat Panel Monitor
MB-514 Mounting Bracket
RM-921 Remote Commander
FLAT PANEL MONITOR
! WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
! WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
! AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.
PFM-500A1WU/500A1WE
Table of Contents
1. Introduction
1-1. PDP Unit (FPF42C10660UD) Analysis Manual ........................................1-1
1-2. Test Equipment ...........................................................................................1-2
1-3. Burn-in Device ............................................................................................1-3
1-4. Measuring Device .......................................................................................1-3
1-5. Parts List and Their Outlined Description of the PDP Unit........................1-4
2. Repair Flow........................................................................................... 2-1
3. Data
3-1. Check Point (X-SUS) .................................................................................. 3-1
3-2. Check Point (Y-COM) ................................................................................3-2
3-3. Check Point (DC/DC) ................................................................................. 3-3
3-4. Check Point of Voltage (X-SUS, Y-SUS) ..................................................3-4
3-5. Glossary....................................................................................................... 3-5
3-6. Connection to Test Equipment....................................................................3-6
3-7. Test Equipment ...........................................................................................3-7
3-8. Photo (Burn-in Unit) ................................................................................... 3-8
3-9. Burn-in Unit Instruction Manual.................................................................3-9
3-10. Criteria Table ............................................................................................3-13
3-11. Voltage Setting Procedure.........................................................................3-19
3-12. Display Test Manual ................................................................................. 3-24
3-13. VG-826 Program Display Pattern .............................................................3-28
3-14. Fixed Display Exclusive-key Pattern ........................................................3-30
3-15. Decision Criteria Table ............................................................................. 3-31
3-16. PC Board Replacing Proceduce ................................................................ 3-32
3-17. Each PC Board Installation Screw Position/Connector Position ..............3-33
PFM-500A1WU/500A1WE
1
1. Introduction
1-1. PDP Unit (FPF42C10660UD) Analysis Manual
This manual explains the failure analysis procedure l for PDP unit and it is applied to analysis by
the test equipment below. To perform failure analysis, see the data, as follows :
. Repair flow
. Check point (X-SUS) ............................ 3-1.
. Check point (Y-COM) .......................... 3-2.
. Check point (DC/DC) ........................... 3-3.
. Voltage check........................................ 3-4.
. Glossary ................................................ 3-5.
. Connection to test equipment ................ 3-6.
. Test equipment....................................... 3-7.
. Photo (Burn-in unit) .............................. 3-8.
. Burn-in unit Instruction Manual ........... 3-9.
. Criteria table.......................................... 3-10.
. Voltage setting procedure ..................... 3-11.
. Display test Manual .............................. 3-12.
. PC board replacing procedure............... 3-16.
Always, allow the self electrical discharge about 30 seconds between shutting down the external power
supply and the operation of replacing each PC board or disconnecting connectors in the repair and
analysis process.
PFM-500A1WU/500A1WE
1-1
1-2. Test Equipment (3-6, 7)
Display test is conducted with the facilities listed below and whether the test results can satisfy the criteria
is determined by the display special point standard in the 3-11.
<Facilities used>
1. Video signal generator : Astro design VG-826 (Refer to the 3-12)
2. External keyboard : Astro design RB-614C (Refer to the 3-12)
3. PDP function test switch (APC/DISP ENABLE/HQEN/luminance variable volume)
1 APC (monitoring power consumption/abnormal operation)
ON: NEW.APC mode [Stability hour (about 3 minutes)]
It can monitor the power consumption on the circuit to maintain the rating power.
In addition, it can monitor the X/YSUS operation and shut down the PDP circuit immediately
when any abnormal operation is detected. This prevents further damage to the circuit.
OFF: OLD.APC mode [Stability hour (about 10 seconds)]
In this mode, the internal power supply is activated forcibly to run the electricity
on the circuit, regardless of whether abnormal operation is detected.
Set this mode with care for failure analysis.
The use of APC switch in “OFF” mode may likely cause a secondary failure. Thus, handle this switch
with care. Do not power on the external power supplies at one time.
2 DISP ENABLE (screen display ON/OFF)
ON : Every operation of displaying data is disabled.
OFF : Every operation of displaying data is enabled.
3 HQEN ENABLE (false frame line deletion function)
ON : The difference of each step is lightened in gradation display
OFF : Each step in gradation is displayed as it is and false frame line can be seen.
4 Luminance variable volume (for changing the screen luminance)
Turn the volume to the right to increase the brightness or turn the volume to the left to decrease
the brightness.
4. External power supplies (See the 3-7)
1 Vcc 0 ~ 6 V 10 A
2 Va 0 ~ 110 V 2.0 A
3 Vs 0 ~ 250 V 15 A
* Observe the following sequence, as shown below when using external power supplies:
Power ON : Vcc → Va → Vs
Power OFF : Vs → Va → Vcc
5. Power supply for exclusive use (See the 3-6)
FPF10P-AC100/240 B Rev.B
1-2
PFM-500A1WU/500A1WE
1-3. Burn-in Device (3-8) 1
(for the Handling Method, Refer to 3-9.)
1-4. Measuring Device
1 Oscilloscope...................... 1 (equivalent to 100 MHz)
2 Digital Multimeter ............ 1
3 Analog tester ..................... 1
PFM-500A1WU/500A1WE
1-3
1-5. Parts List and Their Outlined Description of the PDP Unit
<Outlined description of each part>
No NAME Drawing number Basic operation outline
1 Panel FPF10R-UCPANEL Processes and displays data in image processing
2 Logic FPF10R-LOGIC12 Stores and processes data and monitors the power consumption and
PC board X/YSUS operation.
3 XSUS FPF10R-XSUS Controls reservation, deletion, and writing of display data.
PC board
4 YSUS FPF10R-YSUS13 Controls writing and reservation of display data.
PC board
5 RBUS FPF10R-ABUSR Controls output of screen data to ACOM1, 2.
PC board
6 LBUS FPF10R-ABUSL Controls output of screen data to ACOM4, 5.
PC board
7 DC/DC FPF10R-DC/DC Generates the secondary power supplies Ve. Vsc.
PC board Vw. and _Vy by the external power supply.
<EP ROM and YSUS Correspondence table>
Model UD01
ROM 197G 197L
YSUS NA21701-B192 NA21701-B241
Controls output of screen data to ACOM3.
<Mounting diagram each PC board (rear view)>
YCOM UP
CN
YCOM DOWN
CN
LBUS PC board
Fuse mounting position
46
47
CN43
CN44
ACOM5
YSUS PC board
CN18
CN13
CN41
CN42
CN40
CN17
CN12
ACOM4
CN30
CN20CN37
CN37
CN5CN4
CN3
CN18
DC/DC
CN49
CN25CN24CN23
CN2
Logic PC board
1 or 2
CN9
CN16
ACOM3 ACOM2 ACOM1
CN1
CN7
CN50
XSUS PC board
CN48
CN10
CN15
CN11
CN51
CN52
CN14
XBUS UP
CN
53
XBUS DOWN
CN
54
RBUS PC board
1-4
PFM-500A1WU/500A1WE
<Control section of each display (front view)>
XBUS UP
Display control
section
XBUS DOWN
Display control
section
1/2 1/2
Panel
1/2
1/5
1/5 1/5 1/5 1/5
ACOM1 ACOM2 ACOM 3 ACOM4 ACOM5
Display control
section
FUSE2 FUSE1
RBUS control section LBUS control section
Display control
section
Display control
section
FUSE201
Logic control
Display control
section
FUSE2
Display control
section
FUSE1
section
1/2
YCOM UP
Display control
section
YCOM DOWN
Display control
section
PFM-500A1WU/500A1WE
1-5
2. Repair Flow
Acceptance of returned unit
Check the contents of a fault
Before repair flow
Check the contents of a fault
according to IRIS CODE table.
Appearance inspection
Appearance defect?
Starts repair flow
Repair the defective position
Repair part describing clearly
Appearance
repair request?
Yes
IRIS CODE
Yes
Yes
No
No
Check the contents of a request
No
Connect to test device
Connect to test device
Fault occurs?
Check the contents of fault request
Yes
No
Non-recurrent analysis mode
Fault occurs?
Yes
No
Go to 6 (P2-2) Go to 1 (P2-2) Go to 3 (P2-2)
PFM-500A1WU/500A1WE
Appearance defect?
Yes
No
Failure analysis
Repair
2-1
From 6 (P2-1)
From 1 (P2-1)
Failure analysis
Repair the defective position
Display test
From 3 (P2-1)
Repair complete?
Yes
Re-install the defective parts (except panel).
Fault recur?
Yes
Change the defective parts again.
Check the CPU/ROM revision No.
Conduct display function test.
No
No
Repair
Go to 4 (P2-1)
2-2
Assurance test (running)
Repair complete
END (Shipping)
PFM-500A1WU/500A1WE
t
START
Test equipment
MAIN-SW ON
Signal generator
SW ON
* A-1 to A-4: See the 3-10 (P3-13)
A-1
Operation OK?
Check the contents of a fault
Appearance check
A-3
Appearance OK?
Yes
Yes
No
No
COM failure
Power supply AC100V measure
(MAIN-SW IN/OUT)
A-2
AC100V OK?
Yes
Fault of Test device
Repair request
Panel failure
Flexible cable
failure
No
MAIN-SW OFF
AC power supply correction
treatment execution
ART
ST
Other appearance
defect
Go to P2-4
PFM-500A1WU/500A1WE
Change panel
Lacking parts
Supply, change Repair
TEST
2-3
From P2-3
Protect-cover installation
Fixes to the unit folder
Signal cable is connected with
Logic PC board (CN1)
Special power supply connection
APC function ON Program-key
PUSH “01”
Remote-control SW ON
Analysis A
Fixes to the unit folder
A-4
Screen lighting?
Yes
Evaluation analysis
Go to P2-11
No
Remote-control SW OFF
Separation of Special power supply
External power supply connection
APC function OFF
Program-key PUSH “01”
Go to P2-5
Signal cable is connected with
Logic PC board (CN1)
Analysis B
2-4
PFM-500A1WU/500A1WE
From P2-4
Vcc ON
Vcc is gradually raised, and the voltage is set to 5V.
* B-1 to B-!- : See the 3-10 (P3-13)
B-1
Overcurrent?
No
Yes
External power supply OFF
Separation of SUS
Go to P2-7
Va is gradually raised, and the voltage is set to 65V.
No
APC function ON/Vs ON Vs is gradually raised,
and the voltage is set to 180V.
B-6
Overcurrent?
No
Vcc OFF→ON
B-2
Overcurrent?
Yes
Va ON
B-5
Overcurrent?
Yes
External power supply OFF
Go to P2-6
No
No
No
B-3
Vcc or Va checks?
Yes
B-4
Xsus or Ysus separated?
Yes
External power supply OFF
Separation SUS exchange
Analysis A
Go to P2-4
External power supply OFF
Check the separation of YCOM PC board
B-7
YCOM PC board separated?
Separation of YCOM PC board
PFM-500A1WU/500A1WE
Yes
Yes
No
External power supply OFF
Separation of YCOM PC board
Analysis A
Go to P2-4
Separation of SUS
Go to P2-7
2-5
From P2-5
B-8
YCOM PC board
separated?
External power supply OFF
Change panel
Analysis A
Go to P2-4
B-0
Yes
Check display
Screen flicker OK?
No
B-9
SUS separated?
External power supply OFF
Change the separated
SUS PC board
No
No
Yes
Yes
Check flicker
Go to P2-9
All white color display check
B-!-
Any data display
Evaluation analysis No display analysis
Go to P2-11
No
Yes
Go to P2-19
2-6
PFM-500A1WU/500A1WE
* C-1 to C-8 : See the 3-10 (P3-14)
Separation of SUS
From P2-5
Check of connector for XSUS PC board
C-1
Separate the
XSUS PC board?
Yes
XSUS CN49/50 connection
YSUS CN41/42 separation
Analysis B
Go to P2-4
No
XSUS CN49/50 separation
YSUS PC board connector separation check
C-2
No
Separate theYSUS
PC board?
Yes
External power supply Vcc ON Vcc is gradually raised,
and the voltage is set to 5V.
C-3
Overcurrent?
Yes
Go to P2-8
No
Va ON
Va is gradually raised,
and the voltage is set to 65V.
C-4
Overcurrent?
Yes
and the voltage is set to 180V.
C-5
External power supply OFF
DC/DC
From P2-8
No
Vs O
N
Vs is gradually raised,
Overcurrent?
Yes
No
External power supply OFF
Change X / YSUS PC board
Change DC/DC Analysis A
Go to P2-4
PFM-500A1WU/500A1WE
2-7
From P2-7
External power supply Vcc OFF
Separation of Logic PC board
External power supply Vcc ON
C-6
Overcurrent?
Yes
External power supply Vcc OFF
Separation of LBUS (CN11)
External power supply Vcc ON
C-7
Overcurrent?
Yes
External power supply Vcc OFF
Separation of LBUS (CN13)
External power supply Vcc ON
No
External power supply Vcc OFF
Change Logic PC board
Analysis A
Go to P2-4
No
External power supply Vcc OFF
Change LBUS
Analysis A
C-8
Overcurrent?
Yes
External power supply Vcc OFF
DC/DC
Go to P2-7
2-8
No
Go to P2-4
External power supply Vcc OFF
Change LBUS
Analysis A
Go to P2-4
PFM-500A1WU/500A1WE
Check flicker
* D-1 to D-9 See the 3-10 (P3-14)
From P2-6
XSUS PC board operation test.
Pump output measurement.
Measurements at probe VH27
D-1
Measurement OK?
Measurement at probe VH28
D-2
Measurement OK?
Yes
Measurement at probe VH29
D-3
Measurement OK?
Measure the output at VH27 to VH30.
Voltages are within 1.3 V to 1.8 V on the oscilloscope.
See the 3-4 for the measuring points.
No
Yes
No
No
Measurement at probe VH30
D-4
Measurement OK?
Y test
Go to P2-10
Yes
No
Yes
External power supply OFF
Change XSUS PC board
Analysis A
Go to P2-4
PFM-500A1WU/500A1WE
2-9
Y test
From P2-9
D-5
D-6
D-7
YSUS PC board operation test
Pump output measurement
Measurement at probe VH32
Measurement OK?
Yes
Measurement at probe VH33
Measurement OK?
Yes
Measurement at probe VH34
Measurement OK?
Yes
Measure the output at VH32 to VH35.
Voltages are within 1.3 V to 1.8 V on the oscilloscope.
See the 3-4 for the measuring points.
No
No
No
D-9
D-8
Measurement at probe VH35
Measurement OK?
Yes
External power supply OFF
DC/DC changed already?
Yes
Change logic PC board
No
External power supply OFF
No
Change YSUS PC board
Change DC/DC
Analysis A
Go to P2-4
2-10
PFM-500A1WU/500A1WE
* E-1 to E-!-: See the 3-10 (P3-15)
E-3
E-4
Display test
APC OK?
Yes
Display OK?
Evaluation analysis
All white color display check
E-1
Display OK?
Yes
E-2
No
Measure and set the panel voltage
New panel?
Yes
For the panel voltage measuring procedure,
see the 3-11.
No
No
From P2-4, 2- 6
No
Go to P2-12
External power OFF
Shipping process
Go to P2-13
E-5
No
Change logic PC board
Yes
Logic PC board Changed?
E-6
New LBUS?
External power OFF
Yes
No
Yes
Analysis A
Go to P2-4
Logic PC board changed
E-7
Changed?
Yes
Change DC/DC
Change logic PC boardChange LBUSChange RBUS
No
PFM-500A1WU/500A1WE
2-11
No
E-8
From P2-11
Lateral display error?
Yes
Monitor XSUS PC board
E-9
Waveform OK?
Yes
Monitor YSUS PC board
See the 3-2 for the measuring points of
DOXE/DOXO.
See figure 1 in the 3-1 for the
monitored waveform.
No
External power OFF
E-!-
See the 3-2 for the measuring
points of DOYSU/DOYSD/YCOMDV.
See figure 2,3 in the 3-1
for the monitored waveform.
E-0
Waveform OK?
Yes
Failure caused by panel error?
Yes
External power OFF
Change panel
Change XSUS PC board
Analysis A
Go to P2-4
No
SUS Check
Go to P2-18
No
Separation
Go to P2-15
2-12
Analysis A
Go to P2-4
PFM-500A1WU/500A1WE
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