Panasonic TC-20B12 Service Adjustments and Calibrations, CHK1 OPTIONS, CHK3 OPTIONS, CHK2 OPTIONS

TC-14A12P / TC-20B12

Service Adjustments and Calibrations

TO ENTER IN THE SERVICE MODE:

1.Adjust the volume for the minimum.

2.Adjustment the “OFF TIMER” function for 30 minutes.

3.Simultaneously press the “RECALL“ button of the remote control unit and the “VOLUME DOWN“ button on the TV set. After some seconds, the TV enters the SERVICE MODE and the “CHK1 ” expression should appear on the screen.

TO EXIT SERVICE MODE AND RETURN TO THE NORMAL

STATE:

Press the “NORMAL” key on the remote control unit or turn off the unit.

HOW TO OPERATE THE “DAC” CONTROLS IN THE BR3L CHASSIS

CHK1←→CHK2

− −

↓ ↓

CHK4←→CHK3

To change from “CHK1” to “CHK2” mode and following, press “2” to move forward and “1” to go back.

ADJUSTMENTS IN THE CHK1 MODE:

CHK1 OPTIONS

OPTIONS	PAR
1	C 1
2	0	0
3	0	0
4	3	3
5	8	0
6	0	0
7	0	0
8	0	0

ADJUSTMENTS IN THE CHK3 MODE:

CHK3 OPTIONS

OPTIONS	PAR
V-SLOPE	37
V-SHIFT 50Hz	2
V-SHIFT 60Hz	1
V-AMP 50Hz	16
V-AMP 60Hz	16
H-SHIFT	36
S-CORR 50Hz	18
S-CORR 60HZ	18
V-ZOOM 50 Hz	5
V-ZOOM 60 Hz	7
OSD H-POS	3
OSD V-POS 50 Hz	28
OSD V-POS 60 Hz	21

ADJUSTMENTS IN THE CHK2 MODE:

CHK2 OPTIONS

OPTIONS	PAR
RF-AGC	31
CONTRAST	63
COLOUR	32
SUB-COLOUR	32
NTSC-TINT	32
SUB-NTSC-TINT	30
BRIGHT	32
ADJUSTMENTS IN THE CHK4 MODE:
CHK4 OPTIONS
OPTIONS	PAR
R-CUT	31
G-CUT	32
BRIGHT	32
SUB-BRIGHT	31
CONTRAST	63
SUB-CONTRAST	21
R-DR	19
G-DR	31
B-DR	38
RGB CONTRAST	6

NOTE:

•To select the options, press “4” to move forward and “ 3 “ to go back.

•Select the option and make the adjustment pressing the “VOL _” or “ VOL+” keys.

•To memorize the adjustment press “0” (CHK1 mode only).

• To turn off AKB (blue OSD), press “5” . To turn on AKB (white OSD), press “5” of the remote control unit.

• After end of the adjustments, press the “ NORMAL” key “ or turn of the unit to return to the normal mode of TV.

•To do data memory maintenance, simultaneously press “ MUTE” on the remote control and “VOL _” on the TV set when it is in SERVICE MODE . To select the memory address, press “4” to move forward or “3” to go back.)

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