Switch And Shorting Plug Setting On Pc Boards; Board - Sony DNW-A100 Maintenance Manual

1-10. Switch and Shorting Plug Setting on PC Boards

1-10. Switch and Shorting Plug Setting on PC Boards
1-10-1. APR-12 Board
A B
RV500
S500
COR100
RV100
+4 –3
0
–20
COR300
16 18 20
COR301
UNITY (L) VAR (L)
+4
RV300
0
–3
–20
COR302
HEAD TUNE switch (For Betacam/Betacam SP longitudial audio playback)
It is not necessary to change the setting of this switch, when installing.
Channel Ref. No.
CH1 S500
CH2 S600
Audio input level (CH1, CH2) setting
Input levels (CH3, CH4) are set on the APR-13 board.
Channel Ref. No.
CH1 COR100
CH2 COR200
1-14
C D APR–12 E
A No.
COR200
RV200
COR101
+4 –3
0
–20
20 18 16
COR400
16 18 20
COR401
UNITY (R) VAR (R)
+4
RV400
0
>EP–GW< –3
–20
COR402
APR-12 Board (A Side)
Description
By coupling with RV500, adjust the CH1 head amp high frequency response. This
switch is used in audio head dumping adjustment. When the unit is shipped, this switch
is set to the position based on the adjustment condition.
By coupling with RV600, adjust the CH2 head amp high frequency response. This
switch is used in audio head dumping adjustment. When the unit is shipped, this switch
is set to the position based on the adjustment condition.
Display Input level (dBm/600 Z ) [ ]: Factory setting
[+4] 0
+4 Short Open
0 Open Short
_3
Open Open
_20 Open Open
+4 Short Open
0 Open Short
_3 Open Open
_20 Open Open
F G
LOTNO, S NO,
RV600 1
S600
2
COR201
3
20 18 16
RV202
4
5
6
7
_3 _20
Open Open
Open Open
Short Open
Open Short
Open Open
Open Open
Short Open
Open Short
n
Refer to "2-13. Pulling Out/
Insertion of Plug-in Board" for
pulling out and insertion of board.
< Top View >
Fine adjustment
RV100
RV200
DNW-A100/A50/A45
DNW-A100P/A50P/A45P