5-1
A7144EA
ELECTRICAL ADJUSTMENT INSTRUCTIONS
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
Window, 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
Item
Button
(on the
remote control)
Data
Value
RF-BRT
[MENU]
→
[1]
122
RF-CNT
200
RF-CLR-R
65
RF-CLR-B
75
RF-TNT
129
RF-SHR
112
V-BRT
[MENU]
→
[2]
122
V-CNT
174
V-CLR-R
81
V-CLR-B
101
V-TNT
135
V-SHR
112
S-BRT
[MENU]
→
[3]
122
S-CNT
179
S-CLR-R
80
S-CLR-B
110
S-TNT
139
S-SHR
112
D1-BRT
[MENU]
→
[4]
120
D1-CNT
169
D1-CLR-R
99
D1-CLR-B
124
D1-TNT
129
D1-SHR
112
D2-BRT
[MENU]
→
[5]
132
D2-CNT
164
D2-CLR-R
99
D2-CLR-B
124
D2-TNT
122
D2-SHR
112
D3-BRT
[MENU]
→
[6]
127
D3-CNT
160
D3-CLR-R
110
D3-CLR-B
120
D3-TNT
140
D3-SHR
112
DT-BRT
[MENU]
→
[7]
127
DT-CNT
184
DT-CLR-R
95
DT-CLR-B
113
DT-TNT
129
DT-SHR
112
COR(C/D1)
[VOL -]
→
[1]
128
C-COR(C/D2)
128
COB(C/D1)
[VOL -]
→
[3]
128
C-COB(C/D2)
128
Item
Button
(on the
remote control)
Data
Value
