Panasonic TC-42PD1 Service Manual ▷ View online
- 21 -
Panel APL/ABL
1)
Confirm each data
SG Hold
SG Hold is the alignment tool for data copy function. Color/Signal system can be set regardless of input signal.
Aging
Aging mode is internal pattern generator for panel setting confirmation and the after image removal.
Panel Colour
There are 4 colour pattern White, Red, Blue and Green.
1)
Access desired colour pattern by the Volume Up or Down button on the remote control and press the STR button.
2)
To exit press Menu button
Scroll Bar
Scroll bar is for the after image removal.
Display scroll bar approximately 15 minutes after alignment is competed.
Display scroll bar approximately 15 minutes after alignment is competed.
1)
Access the Scroll bar menu by Left or Right button of cross button and press the STR button.
2)
To exit press the Menu button.
Note:
CAT (Computer Aided Test) mode
Alignment Item
Reference
Setting/Special feature
APL Shift Level
E2
Confirmation only
ABL Point
10
Confirmation only
ABL Gain
E0
Confirmation only
ABL Bank Select
3F
Confirmation only
Mode Function
Access
button
IIC
Service Alignment
STR
CD (Complete Diagnostics)
Software version information
EEP ROM edit
MUTE(3 sec.)
IT (Integrated Text)
Not use
SD (Status Display)
Factory use
OSD on/off
OSD display switch
MUTE(3 sec.)
ID (Initial Data)
Not use
CAT sys8.0
0
IIC Mode
CD Mode
I T Mode
SD Mode
OSD On/Off
ID Mode
CD Mode
I T Mode
SD Mode
OSD On/Off
ID Mode
< Scroll Bar >
- 22 -
Self Check
Display Indication
1. Self-check is used to automatically check the bus line
controlled circuit of the Plasma display.
2. To get into the Self-check mode press the volume down
button on the customer controls at the front of the set, at
the same time pressing the OFF-TIMER button on the
remote control, and the screen will show: -
the same time pressing the OFF-TIMER button on the
remote control, and the screen will show: -
If the CCU ports have been checked and found to be incor-
rect or not located then “--” will appear in place of “OK”
rect or not located then “--” will appear in place of “OK”
ID
HG
DS
D
IIC1
IC2401 OK H21
IIC2
IC8501 OK H51
IC8516 OK H52
IC8506 OK H53
IC8509 OK H54
IC8002 OK H55
IC8004 OK H51
IC8010 OK H59
IC8013 OK H57
IC8007 OK H58
IC9100 OK H60
IC9210 OK H61
IC9410 OK H62
IC9801 OK H63
IC9804 OK H91
Trouble shooting guide
LED Indication
1. The Power LED indicates faulty status of power supply circuit by flashing.
(When one of secondary supply voltage is decreased under 2/3 of original voltage, the power LED light change from green to
red flashing.)
red flashing.)
Red Colour
Flashing
Remove
P7 board
Process Voltage lines failure
+3.3V
+5V
+13V
-15V
-15V
HG board
D board
DS pack
Sustain Voltage lines failure
Vsus
Ve
VDA (+70V)
Ve
VDA (+70V)
SS board
SC board
SC board
C1 - C4 board
SU or SD board
Red LED flashing
Turn green LED
- 23 -
No Power
No Picture
TPSC1 SC pulse
Local screen failure
Plasma display may have local area failure on the screen. Fig-T is the possible defect P.C.B. for each local area.
Fig-T
Does turn the power LED
Check F board
Fuse F900, F901
Change P board
Check P board
NG
OK
Check AC power code or power source
Red LED flashing
See Self Check section
No picture
DS pack
D or P board
What signal?
Check OSD
Check
drive pulses
DS
input
HG board
D board
HG board
HG board
SC or D board
SS or D board
RGB/Component, PC
(525p, 625p)
All Input
Display
OK
No SC pulse
on TPSC1
on TPSC1
No SS pulse
on TPSS1
on TPSS1
No signal
OK
Component
AV
AV
A-15, 17, 19
A-7, 9
Check
A-7, 9
Check
AV(NTSC, PAL, SECAM), Component(525i, 625i)
No signal
both SC & SS
both SC & SS
When drive pulses are oscillated correctly,
slight hum noise can be heard from the boards.
slight hum noise can be heard from the boards.
1 Field
Panel(Vertical lines)
<Local screen failure chart>
SU board
D board
C2 board
D board
C1 board
D board
C3 board
D board
C4 board
D board
SD board
D board
!
- 24 -
Quick adjustment after P.C.B. exchange
When a P.C.B. is changed following P.C.B. should be re-adjusted.
Changed
P.C.B.
Item
Volume
Test point
Level
P board
V
DA
R528
TPDA1(C1)
75V±0.5V
V
SUS
R639
TPVSUS
V
SUS
±1V
V
E
R494(P1)
TPVE
V
E
±1V
DS board
DS contrast
IIC mode
TP216
0.7 Vp-p
SC board
Vset
R6587
TPVSET
VSET±0.5V
Vscn
R6595
TPVSCN
80V±0.5V
SS board
Erase pulse
R6754
TPSS1
Waveform
D board
Re-confirmation of all alignment setting
Click on the first or last page to see other TC-42PD1 service manuals if exist.