Repair Scenario FTV with SDI PDP
First check complete set
Fault Symptom?
No
Repair Philips application
Scavio = FM242
SSB EMG = FTP1.1 (with LVDS tool??)
SSB EMG 2004 = FTP2.2 with LVDS Tool
Power Supply
is working ?
Check if LVDS from SCAVIO
or SSB board is OK
Use LVDS Tool when possible
Output of SSB / SCAVIO
is OK?
SDI repair Scenario
Fault finding; Display fault
No
Power supply is not working
No voltage output
Go to Power Supply Check
& repair scenario
With Philips application
or PDP as stand alone check
42FD9925/01
42FD9935/17/93S
42FD9945/01/12/69/79/98
42FD9953/17/69C/69S/93S
42FD9936/37
SD
FM242
42PF9945
SD
FTP1.1
Set Type ?
37PF9946/12
37PF9936/37
SD SD
LC4.7
42PF9966/37/
79/93/98
42PF9976/37
HD
FTP2.2
42PF9946/12/79/93/98
42PF9936D/37
42PF9956/12/93
FTP2..2
LC4.7
50PF9956/37
50PF9966/12/37/69/
93
50PF9986/37
HD
FTP2..2
Repair Scenario 42SDV2
VDS 25.10.04 Page 1
Repair Scenario SDV4
Repair Scenario SDV3
No Voltage output
Power Supply Check for 42SDV2
Operating voltages don´t exist
Check F8002
Fuse 250V/8A
On/Off relay
RLY8001/8002 acts?
Green LED´s
8001, 8002
are on?
Switch on On/Off switch (vacation switch)
SMPS shutsdown?
Red LED8004 is on
Connect set to mains.
LED8003
Stby is on?
Switch on via RC
Check Protection Red
LED8004
Protection failure.
No
Check CN8004 / 2pin
connector 220V AC
NO
Stanby supply is defective.
Replace PSU
No
Check Stanby Line
pin 11 on CN8002.
must be low
Yes
Call SAM
or SDM
Check SMPS outputs
Vs, Va, Vset, Ve, Vsc
see Sticker
Yes
Yes
Disconnect X-main CN8007
Disconnect VA Logic Buffer
Replace
PSU
Discharge capacitors on Power
supply via connector, before
reconnecting X, Y or Buffer board,
use discharge resistor
LED on Logic main
board is blinking?
Disconnect Y-main
CN8008
Vs/Vset/Vsc/Vcc
Vs/Vg/Vcc
CN8010 / CN8011
Power supply is operating
No
after disconnecting one
of these boards?
Check Power supply
on Logic main
Disconnect mains
reconnect mains
Switch on via RC
(again)
No
Use overview of PS
in wiring diagram
VDS 25.10.04 Page 2
Replace the defective board
Replace
PSU
No Voltage output
Power Supply Check for SDV3
Operating voltages don´t exist
Check CN8001 / 2pin connector 220V AC
On/Off relay
RLY8001/8002 acts?
Green LED´s
8001, 8002
are on?
Yes
Connect set to mains.
LED8003
Stby is on?
Switch on via RC
Protection failure.
SMPS shutsdown?
Red LED8004 is on
Check fuse F8001 / F8002 / 8003
NOK
Stanby supply is defective.
Replace PSU
No
Check Protection Red
LED8004
Check Stanby Line
on CN8004.
pin 13 must be low
Logic Main board LED
3,3V and 5V are on?
Call SAM
or SDM
reconnecting X, Y or Buffer board,
Check SMPS outputs
Vs, Va, Vset, Ve, Vsc /D5V
see Sticker
Yes
Replace
PSU
Discharge capacitors on Power
supply via connector, before
use discharge resistor
Disconnect X-main CN8002
Vs/Ve/Vcc/D5V
Disconnect Y-main
CN8003
Vs/Vset/Vsc/Vcc/D5V
Disconnect VA Logic Buffer
CN8005 / CN800x
Va
Power supply is operating
after disconnecting one
of these boards?
Disconnect mains
reconnect mains
Switch on via RC
(again)
No
Use overview of PS
in wiring diagram
VDS 25.10.04 Page 3
Replace the defective board
Replace
PSU
Repair Scenario SDI PDP panels as stand alone V2 versions
Repair 42SDV2
Check PDP Type number
PDP identification =
S42SD-YD06
S42SD-YD05
No
Y
For FM242 disconnect and remove SCAVIO Board
For FTP1.1 disconnect and remove SSB and Audio Board
Connect Jig connector to CN8002 (13 pins)
Short circuit between pin 1 & 2 = On/Off switch (vacation switch)
Switch between pin 8 & 11 standby line switch
Short the Jumper J8002
Set the DIP Switch 2 on
the Logic main board to Off
Plug in the Power cord
Green Stby LED
8003 is on ?
Go to V3 or V4
repair scenario
Yes
Switch Jig connector switch on
Green LED 8001
& 8002 are on?
Yes
Go to fault finding part
No Display Abnormal Display
VDS 25.10.04 Page 4
Some horizontal or
Vertical Lines don´t exist
No
No
Protection
LED8004 is on?
Yes
Operating voltages
don´t exist
Standby Supply
is defective
Yes
Replace Power
supply board
Repair Scenario SDI PDP panels as stand alone V3 & V4 versions
Repair 42" & 50" SDV3
as Stand alone
Check PDP type number
PDP identification =
S37SD-YD02 or YB01?
S42SD-YD05 or YB03?
S42AX-XD02 or XB01?
S50HW-XD03 or XB02?
Other PDP type
Disconnect and remove SSB FTP2.2
or LC4.7 board.
Remove plastic Frame to have acces to all boards
Connect Jig connector with switch to Sub Supply
CN9004 / CN9005
Set DIP switch 3 to internal mode
Position of DIP Switch Int or Ext is indicated on board
Connect set to Mains
CN8001 on Power Supply (use mains filter)
Green Stby LED
8003 is on ?
Yes
Switch Jig connector switch on
Go to V2
1 2 3 4 1 2 3 4
1 2 3 4 1 2 3 4
Internal Exte rnal
Internal Exte rnal
No
Standby Supply
is defective
Green LED 8001
& 8002 are on?
Yes
Go to fault finding part
No Display Abnormal Display
Some horizontal or
Vertical Lines don´t exist
VDS 25.10.04 Page 5
No
Protection
LED8004 is on?
Yes
Operating voltages
don´t exist
Yes
Replace Power
supply board
Fault Symptoms
First check complete set.
Fault Symptom?
No Voltage output
Operating Voltages don´t exist
Go to
Operating voltages don´t exist.
Operating Voltages exist,
but No Display
Go to
No Display
Abnormal Display, not
open or short Lines
Go to
Abnormal Display
Go to
Adress Open /
Adress Short
Vertical
Some horizontal or Vertical
Lines don´t exist on the
Display.
Sustain open
Horizontal or
Vertical Lines?
Horizontal
Go to
Sustain open /
Sustain short
VDS 25.10.04 Page 6
No Display
Operating voltages exist, but there
is no Display.
No Display is related with Y-Main,
X-Main or Logic-main
Logic Main
LED 2000 blinks?
LED2000 blinks?
Action of V-Sync
Y-Main
Check test points
Check Fuse
Open?
No
Check FET
Short?
No Display
Bring set in
repair set-up
X-Main
Check test points
Check Fuse
Open?
No
Check FET
Short?
Scavio or SSB is
disconnected and removed.
Power supply will be started-
up with Jig connector and
DIp swithc on Logic main is
on internal mode.
Hum or noise
comming from the
Panel?
Panel noise
is in or out
specifiation?
Logic main
normal state
Replace PDP
Replace the
Logic-main board
No
Y-Main
normal state
Check X-Main
Replace the
Y-main board
Yes
Yes
No
X-Main
normal State
Check
Logic-main
Replace the
X-main board
Out
Yes
Yes
Replace the PDP
Check other boards
Power supply
Y & X-Main
Add (or use ) a board Layout
with position of fuses and
FETs
VDS 25.10.04 Page 7
Logic-Main
Observation of
abnormal Display
Abnormal Display
Abnormal Display
Check FFC
Flat Foil Connections
between Logic-main, X-main and Y-main
Y-Main
Check
X-Main
Check
Regular abnormal
pattern
Yes
Replace the Logic-
main board
No
Logic main
normal state
Replace PDP
Check Fuse
Check FET
CheckTCP Ramp
waveform adjustment
on Y-board (buffer)
Check Fuse
Check FET
Check X Waveform
VDS 25.10.04 Page 8
Some horizontal lines don´t exist on the Display.
Sustain open or short
Sustain Open
or Sustain Short
Horizontal Lines
Some horizontal lines don´t
exist on Display
Y-FPC
Sustain open
FPC damaged or
connection to PDP
Check connections
Y-buffer up & Low
Check FFC
Nok
Horizontal lines
Some horizontal lines appear
to be linked on Video
Y-FPC
Sustain Short
OK
Change Y-Buffer
Upper or Lower
Replace the panel
There is a defect on FPC
After changing buffer,
recheck the status
OK
Done
Defect is from buffer
VDS 25.10.04 Page 9
Some Vertical Lines don´t exists or are always on,
Adress Open or Adress Short.
y Line Open
y Data Block Open
y COF Block Open
Logic Main / FFC
Check or change
interconnections
What is the status of
open?
Adress Open
Adress open is related with Logic
Main, Logic Buffer
, FFC, TCP and so on.
Logic Buffer
Check and / or
change E / F / G
Buffer
y Line short
y Data Block short
Logic Main / FFC
Check or change
interconnections
What is the status of
Short?
Adress Short
Adress short is related with
Logic Main, Logic Buffer,
FFC, TCP and so on.
Logic Buffer
Check and / or
change E / F / G
Buffer
1 lLine
or 1 Block
Yes
Replace PDP
No
NOK
Half Block /
Half of Screen
Yes
Replace Logic-Main/
Adress Buffer E or F or G/
FFC
1 lLine
or 1 Block
Yes
Replace PDP
No
NOK
Half Block /
Half of Screen
Yes
Replace Logic-Main/
Adress Buffer E or F or G/
FFC
VDS 25.10.04 Page 10
Done
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