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1-9. Switch and Shorting Plug Settings on PC Boards
1-9-2. DM-89 Board
n
Never change the settings of the factory use switches.
A
ON
S901
OFF
S301
TEST
NOR
Switches
Ref. No. Bit
Name
S101
Y-RF LPF & EQ TEST
(Y-RF low-pass filter &
equalizer test)
S102
—————
S301
C-RF LPF & EQ TEST
(C-RF low-pass filter &
equalizer test)
S302
—————
S501
—————
S901
1 to 4 —————
1-14
B
C
D
DM-89
E
OFF
ON
S501
S302
TEST NOR
S101
TEST NOR
DM-89 Board (Side A)
Description
Y-RF low-pass filter & equalizer test
signal connection switch
To adjust: Select the TEST position.
Connect the input signal to
TP103. (GND to E102)
Factory use
C-RF low-pass filter & equalizer test
signal connection switch
To adjust: Select the TEST position.
Connect the input signal to
TP303. (GND to E302)
Factory use
Factory use
Factory use
F
G
A No.
LOTNO,
S NO,
1
2
3
4
5
S102
TEST NOR
6
7
Factory setting
NORMAL POSITION
NORMAL POSITION
NORMAL POSITION
NORMAL POSITION
ON
OFF (OPEN)
n
Refer to Section 2-13 for
removing/reattaching the plug-in
board.
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DNW-A22/A22P
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