Sony DVS-7200A Installation Manual page 88

5-2. Adjustment of Secondary Power Supply Voltage
(5) Connect the digital voltmeter between test terminals on the CPU-264 and the XPT-16 boards and
confirm that the voltage value of each test connector meet the specification shown in the table below.
If the specification does not meet, adjust the voltage by the adjustment potentiometers of the power
unit B.
(6) Turn on the power switches of the power units A and B.
(7) Confirm that the indicators of the power units A and B light. If an indicator of both does not light, re-
carry out from the step (1) of "procedures for power unit B".
Power supply unit
PWH4 x 8
5V D15 (B5)
3V D16 (B5)
_5V D18 (B5)
CPU-264 board
Power unit Voltage Specifications
+5.05 ± 0.02 V
A +5 V (A)
+5.05 ± 0.02 V
+5 V(B)
+3.35 ± 0.02 V
+3 V
_5 V _5.05
+5.05 ± 0.02 V
B +5 V(A)
+5.05 ± 0.02 V
+5 V(B)
+3.35 ± 0.02 V
+3 V
_5 V _5.03
(*1) For the power unit A the center value of the _5 V is _5.05 V.
(*2) For the power unit B the center value of the _5 V is _5.03 V.
5-18
CNT3
CNT4
CNT6
XPT-16 board
CNT7
Test connector
CPU-264 board
CNT3 (+5 V) → CNT7 (GND)
XPT-16 board
CNT1 (+5 V) → CNT3 (GND)
XPT-16 board
CNT2 (+3 V) → CNT3 (GND)
+0.00 V (*1)
CPU-264 board
_0.02 V
CNT6 (_5 V) → CNT7 (GND)
CPU-264 board
CNT3 (+5 V) → CNT7 (GND)
XPT-16 board
CNT1 (+5 V) → CNT3 (GND)
XPT-16 board
CNT2 (+3 V) → CNT3 (GND)
+0.02 V (*2)
CPU-264 board
_0.00 V
CNT6 (_5 V) → CNT7 (GND)
RE-110 board
CNT1
CNT2
Adjustment driver
CNT3
Adjustment potentiometer
RE-110 board
1RV201 (Power unit A)
RE-110 board
1RV202 (Power unit A)
RE-110 board
1RV203 (Power unit A)
RE-110 board
1RV204 (Power unit A)
RE-110 board
1RV201 (Power unit B)
RE-110 board
1RV202 (Power unit B)
RE-110 board
1RV203 (Power unit B)
RE-110 board
1RV204 (Power unit B)
RV201
+5 V (A) RV202
+5 V (B)
RV203
+3 V
RV204
_5 V
DVS-7200AE IM