Friday, February 15, 2013

PANASONIC TC-42PD1 _ PLASMA TV - ALIGNMENT - SERVICE MODE - AGING - WHITE BALANCE ADJUSTMENT - VOLTAGE ADJUSTMENT AFTER PCB REPLACEMENT




HOW TO ACCESS ALIGNMENT
  • Press and hold the volume down / - button on the front panel of the unit and press the status  button on the remote control 3 times quickly within 1 second, this will place the unit into the CAT menu (Main service mode).
  • Press the STR button on the remote control.
  • Select the alignment Subject by the UP or DOWN button of the Cross buttons on the remote control.
  • Select the alignment item by the LEFT or RIGHT buttons of the Cross buttons on the remote control.
  • Adjust optimum setting by Volume Up / + and Down / - buttons.
  • To exit the IIC mode, press the menu button on the remote control.
  • To exit the CAT mode, access the ID mode by the down button of cross buttons and switch off the main power and on again.
Alignment
  • DS contrast
  •  Input 1Vp-p PAL Composite colour bar signal into the video in terminal.
  • Access the DS contrast mode and align as follow.
  • Alignment Item:  Sub Contrast
  • Reference: 66
  • Setting/Special feature:  0.7V pedestal-peak on TP216.
VIDEO SIGNAL SETTING
  • Input 1Vp-p PAL Composite colour bar signal into the Video in terminal.
  • Set Picture mode to Normal mode and Manual W/B to Cool position.
  • Access the Video signal Adj. Mode and set each Item as follow.
Alignment Item
Reference
Setting /Special feature
Sub Brightness
80
Fixed data
R Cutoff
40
Fixed data
B Cutoff
40
Fixed data
Sub Contrast
63
Set the signal on TP294 to 0.7V pedestal-peak.
R Drive
71
Set the signal on TP293 to 0.7V pedestal-peak.
B Drive
71
Set the signal on TP295 to 0.7V pedestal-peak.
G Cutoff
80
Fixed data
G Drive
20
Fixed data
  • Record the setting data of Sub contrast, R Drive and B Drive.
  • Access the SG Hold mode (Forced signal system set mode) and set the system to NTSC.
  • Return to the Video signal adj. mode and copy the Data 1 for each item.
  • Repeat item 5) and 6) for SECAM, 525i, 625i and 525p system.
CHROMA CONTROL

Alignment Item
Reference
Setting/Special feature
R-Y Axis Angle
E
Fixed data
R-Y Axis Gain
2E
Fixed data
Sub Tint
47
Optimum setting
Sub Colour
30
Optimum setting
  • Record the setting data of Sub Tint and Sub Colour.
  • Access the SG Hold mode (Forced signal system set mode) and set the system to NTSC.
  • Return to the Chroma Control mode and copy the Data 2 for each item.
  • Repeat item 3) and 4) for SECAM and 525i system. (Sub colour data for SECAM system should be reduced 5 steps from data 2.)
PANEL WHITE BALANCE
  • PC/RGB signal
  • Change to the PC input mode and input the PC signal.
  • Set the manual W/B to Cool by the Menu button.
  • Access the Panel W/B mode and align the white balance (Slightly bluish white).
Reference Cool (Hi)
Setting/Special feature
Brightness
66
Optimum setting
R Cutoff
91
Optimum setting
B Cutoff
85
Optimum setting
B Drive
6A
Optimum setting
R Drive
74
Optimum setting
Contrast
84
Optimum setting
  • Change the Manual W/B to Normal by the Menu button, and set the white balance data by Increasing the R Drive data 34 steps and reducing the B drive data 2 steps from Cool mode.
  • Change the Manual W/B to Warm by the Menu button, and set the white balance data by Increasing the R Drive data 47 steps and reducing the B drive data 31 steps, R cutoff and B cutoff 1 step from Cool mode.
COMPOSITE | COMPONENT SIGNALS
  1. Change to the AV input mode and input the PAL white pattern signal.
  2. Set the manual W/B to Cool by the Menu button.
  3. Access the Panel W/B mode and align the white balance (Slightly bluish white)
  4. Change the Manual W/B to Normal by the Menu button, and set the white balance data by Increasing the R Drive data 24 steps and reducing the B drive data 2 steps, B Cutoff 1 step from Cool mode data.
  5. Change the Manual W/B to Warm by the Menu button, and set the white balance data by Increasing the R Drive data 30 steps and reducing the B drive data 35 steps, B cutoff 2 step from Cool mode data.
  6. Access the SG Hold mode (Forced signal system set mode) and set the system to NTSC.
  7. Return to the Panel W/B mode and copy the Data 3 for each item.
  8. Repeat item 6) and 7) for 525i, 625i and SECAM system.
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.
  • Access desired colour pattern by the Volume Up or Down button on the remote control and press the STR button.
  • 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.
  • Access the Scroll bar menu by Left or Right button of cross button and press the STR button.
  • To exit press the Menu button.
SELF CHECK
Display Indication
  • Self-check is used to automatically check the bus line controlled circuit of the Plasma display.
  • 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. [If the CCU ports have been checked and found to be incorrect or not located then “--” will appear in place of “OK”]
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

VDA
R528
TPDA1(C1)
75V±0.5V
P board
VSUS
R639
TPVSUS
VSUS±1V

VE
R494(P1)
TPVE
VE±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.




Posted by at