5-1
A7121EA
NOTE: CBA AND PWB MEANS PRINTED WIRING
BOARD."
NOTE:
Electrical adjustments are required after replacing circuit
components and certain mechanical parts. It is important
to perform these adjustments only after all repairs and
replacements have been completed.
Also, do not attempt these adjustments unless the
proper equipment is available.
Test Equipment Required
1. DC Voltmeter
2. NTSC Pattern Generator (Color Bar W/White Win-
dow, Red Color, Dot Pattern, Gray Scale, Monoscope,
Multi-Burst)
3. Remote control unit
4. Color Analyzer
How to enter the service mode:
Press [MENU] and [POWER] buttons on the TV unit
simultaneously in the standby mode.
1. Initial Setting
General : Enter service mode.
Set initial data as shown on table 1.
Press the number after [MENU] on the table to access
next item. Press [CH. o / p] to change data value.
Table 1: Initial Data
VALUE
DATA
[1]
[2]
RF-BRT
[MENU]
122
RF-CNT 200
RF-CLR-R 130
RF-CLR-B 115
RF-TNT 135
RF-SHR
123V-BRT
[MENU]
112
V-CNT 182
V-CLR-R 110
V-CLR-B 110
V-TNT 138
V-SHR 112
ITEM
(
on the
remote control
)
BUTTON
ELECTRICAL ADJUSTMENT INSTRUCTIONS
ITEM
VALUE
DATA
COR
(
C/D1
)
[VOL -] [1]
[VOL -]
[3]
[VOL -]
[4]
[VOL -]
[6]
128
C-COR
(
C/D2
)
128
COB
(
C/D1
)
128
C-COB
(
C/D2
)
128
DR
(
C/D1
)
128
C-DR
(
C/D2
)
128
DB
(
C/D1
)
128
C-DB
(
C/D2
)
128
[6]
[7]
123D3-BRT
[MENU]
D3-CNT 170
D3-CLR-R 100
D3-CLR-B 100
D3-TNT 120
D3-SHR 112
DT-BRT
[MENU]
128
DT-CNT 200
DT-CLR-R 100
DT-CLR-B 100
DT-TNT 140
DT-SHR 112
[4]
[5]
115D1-BRT
[MENU]
D1-CNT 182
D1-CLR-R 127
D1-CLR-B 125
D1-TNT 140
D1-SHR 112
D2-BRT
[MENU]
134
D2-CNT 165
D2-CLR-R 121
D2-CLR-B 121
D2-TNT 135
D2-SHR 112
[3]
S-BRT
[MENU]
123
S-CNT 182
S-CLR-R 130
S-CLR-B 120
S-TNT 135
S-SHR 112
(
on the
remote control
)
BUTTON
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