Panasonic TX-28CK1P, Service Manual

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ADJUSTMENT PROCEDURE
Item / Preparation Adjustments
+B SET-UP
1. Receive a Greyscale signal.
2. Set the controls :-
Brightness Minimum
Contrast Minimum
Volume Minimum
Confirm the following voltages.
+B1 3,3 ± 0,3V +B13 -13 ± 1V
+B2 195 ± 10V +B14 27,5 ± 1,5V
{195 ± 10V} {27,5 ± 1,5V}
[190 ± 10V] [27,5 ± 1,5V]
+B3 13,5 ± 1V +B15 28 ± 1,5V
{13,5 ± 1V} {28 ± 1,5V}
[12,5 ± 1V] [28 ± 1,5V]
+B4 10 ± 1V +B16 11,5 ± 1V
+B8 5 ± 0,3V {11,5 ± 1V}
+B11 147 ± 10V [11,5 ± 1V]
{ 147 ± 10V} +B17 8 ± 1V
[127 ± 10V] +B18 5 ± 0,3V
CUT OFF / Ug2 Adjustment
1. Receive a Greyscale signal.
2. Degauss the tube externally.
3. Set the TV into Service Mode 1.
4. Select Ug2 Test.
Set Contrast on maximum, set Brightness on center, switch
on AV mode.
Enter Service mode. Set Sub-Brightness to 31. Select Ug2
Test. Press "
+ " and adjust screen Vr till sharp vertical line is
visible and LED switches off. Then reduce screen Vr till LED
is just switched on (pin6 of connector E1 must be connected
to GND).
Note: To set up ”white balance” first set up “Cut off” register to 8. Then set up “high-light” with the help of “drive” registers.
Finish setting-up of “Low-light” with the help of ”Cut-off” register.
Carry out setting-up of ”white balance” in available TV systems (PAL, SECAM).
FACTORY SETTINGS
To return customer settings to factory settings and clear owner ID of all information input by the customer, enter Self-Check
mode. Press the down
(-/v) button on the customer controls at the front of the TV set, at the same time pressing the STATUS
button on the remote control. To exit Self Check, switch off the TV set at the power button.
Service Aids
To aid in the service of our current chassis there are a number of Service Aids which have been made available.
•
LUCI interface kit ( L inked U tility C omputer I nterface)
Part number: TZS6EZ002
This contains interface and cables for connecting TV service connector and a PC as well as diagnostic software. As new
models are introduced upgrade software will become available.
•
VICI ( V isual I nteractive C omputer I nformation)
These C.D.'s contain multimedia documentation providing quick access to service information.
Part No. TZS7EZ006, TZS7EZ005, TZS8EZ001& TZS9EZ001
1.
Service Manuals
2. Instruction Books
3. Technical Information
•
TASMIN ( T echnically A dvanced S ystem for M ultimedia I nteractive N otes)
As well as providing a first step towards more interactive training this product also achieves quick access to Technical
Information.
OPTION 1 6C
OPTION 2 00
4
NOTE: Self Check should only be used when refurbishing the TV set and not during normal repair work.
[OPTION 1 4C]
[OPTION 2 00]
{OPTION 1 6C}
{OPTION 2 00}