Bkfv-300 Adjustment; Board Adjustment - Sony FVS-1000 System Maintenance Manual
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- Operation manual (44 pages) ,
- Maintenance manual (138 pages)
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6-9. BKFV-300 Adjustment
6-9-1. DIF-120 Board Adjustment
The DIF-120 board has a power supply voltage generation circuit for the HD SDI TX module. In addition
to the 5 V and 3.3 V power supplied from the mother board, _5 V, _2 V and 1.2 V power supplies are
generated by this board.
Measuring instrument: Digital voltmeter
Tool:
Extension board EX-670 (For rear board)
Adjustment
1. Pull out the DIF-120 board using the extension board EX-670 (for rear board).
2. Connect the digital voltmeter to the following TPs, and adjust each RV so that the following specifi-
cations are satisfied. Connect GND to E101/DIF-120 (C-3).
m
. Currently adjustment is not required as it is made factory-adjustment.
Measure a voltage when a part or parts of VR, etc. needs/need to be replaced.
When the measured value of voltage may not be within the specific value, however, then do an adjust-
ment.
. As the metal board which is screw-clamped beside the TP101 is connected to GND, be careful of short-
circuit when measure voltage.
Measuring Point
Address
TP102
(B-7)
TP103
(D-7)
TP101
(A-6)
TP104
TP106
TP105
RV102
TP100
RV101
RV100
TP101
TP102
TP103
A
B
C
FVS-1000 MMP1
Specification
Adjustment RV
_2.0 ± 0.01 V
RV100
_5.0 ± 0.01 V
RV101
+1.2 ± 0.01 V
RV102
—
RV1100
D
E
F
G
DIF-120 BOARD (A SIDE)
Address
(A-4)
(C-4)
(B-4)
(N-3)
TP1200
TP1201
TP500
TP400
TP401
TP1000 TP1001
TP801
TP901
TP900
H
J
K
L
6-9. BKFV-300 Adjustment
Name
_2 V adjustment
_5 V adjustment
+1.2 V adjustment
Factry use only
1
2
RV1100
3
4
5
TP800
6
7
M
N
6-33
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