1-21
DNW-A75/A75P
1-10-4. TBC-23A Board
n
Never change the settings of the factory use switches.
Switches
Ref. No. Bit Name Description Factory setting
S1 1 Y MUTE OFF (OPEN) : Normal mode OFF (OPEN)
ON (CLOSE) : Muting luminance signal
2 C MUTE OFF (OPEN) : Normal mode OFF (OPEN)
ON (CLOSE) : Muting color difference signal
3 ————— Factory use OFF (OPEN)
4 ————— Factory use OFF (OPEN)
5 COMB Selection whether to select a comb filter when the OFF (OPEN)
color difference signal has significant line crawl
which cannot be corrected by LCC or not.
OFF (OPEN) : Comb filter OFF
ON (CLOSE) : Comb filter ON
6 TBC TEST Selection whether to enable the TBC-23A and -24 OFF (OPEN)
boards self diagnostics or not.
OFF (OPEN) : Normal mode
ON (CLOSE) : Test (self diagnostics) mode
7 ————— Factory use OFF (OPEN)
8 VIDEO PHASE Selection whether to use VIDEO PHASE VR or not. OFF (OPEN)
OFF (OPEN) : VIDEO PHASE VR (RV202) disabled
ON (CLOSE) : VIDEO PHASE VR (RV202) enabled
S500 1 ————— Factory use OFF (OPEN)
|
4
A B C D E FG
S1 S500
TBC-23A
RV202
LOTNO,
S NO,
1
2
3
4
5
6
7
A
1-648-543-
MADE IN JAPAN
[1][2] [3] [4][5] [6] [7] [8] [1][2] [3] [4]
COMB
TEST
VIDEO PHASE
Y MUTE
C MUTE
1
2
3
4
5
6
7
8
A No.
ON
OFF
TBC-23A Board (Side A)
1-10. Switch and Shorting Plug Settings on PC Boards
n
Refer to Section 2-13 for remov-
ing/reattaching the plug-in board.
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