5-46
6-3-4.
TG2/TG7 ELECTRIC TENSION REGULATOR ADJUSTMENT
1. Preparation before adjustment
FL block: Remove.
Position :
LOADING
(The pinch roller should be stuck) /
S cassette
Jig used : Cassette standard plate (J-7), TG2/7 preset plate (J-9) and screwdriver for tape path
(For attaching jigs, refer to page 5-5)
2. Connecting, setting, and adjusting methods
RV102
RV001
RV002
CN101 RV101
Specified value
TG2 guide side
(MD-63 board)
RV101: 1.3
±
0.1 V
RV102: 2.5
±
0.1 V
TG7 guide side
(MD-64 board)
RV001: 1.3
±
0.1 V
RV002: 2.5
±
0.1 V
6.5 to 8.5 V
Digital voltage meter
Switch them alternately
to measure.
DC power supply
DC IN (+)
DC IN (–)
CN2
CN1
Tension regulator adjustment board (J-13)
E. T out (TG2 side)
GND
E. T out (TG7 side)
Connect to CN101.
TG2/7 preset plate (J-9)
(Refer to page 7)
MD-63 board
MD-64 board
TG7 guide
TG2 guide
Drum
CN002
1
Connect to CN002.
1
1
1
3. Adjusting
RV
[TG2 side: 1.3 V adjustment]
While pressing the guide, adjust it
within 1.3 V
±
0.1 V.
[TG7 side: 1.3 V adjustment]
While pressing the guide, adjust it
within 1.3 V
±
0.1 V.
MD-63 board: RV101
MD-64 board: RV001
[TG2 side: 2.5 V adjustment]
While pressing the guide, adjust it
within 2.5 V
±
0.1 V.
[TG7 side: 2.5 V adjustment]
While pressing the guide, adjust it
within 2.5 V
±
0.1 V.
MD-63 board: RV102
MD-64 board: RV002
Summary of Contents for DSR-20MD
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Page 223: ... 294 DSR 20MD 20MDP 9 974 189 11 Sony EMCS Co 2007E0500 1 2007 5 Published by Kohda TEC ...