Sony HDS-7150 Installation Manual page 105

(5) Connect the digital voltmeter between the test terminals on the CN-1150 board and confirm that the
voltage value meets the specification shown in the table below.
If the specification is not met, adjust the adjustment potentiometer of the power unit B.
(6) Turn on the power switches A and B of the power units A and B.
(7) Confirm that the indicators (D9 on the RE-146 board) of the power units A and B light. If an indica-
tor does not light, perform the procedure B from step (1).
CN-1150 board
Adjustment driver
RE-146 board
RV2
+5 V
RV1
+12 V
Voltage Specifications
+5.10 ± 0.02 V
+5 V
+12.24 ± 0.02 V
+12 V
HDS-7150/7100
E1 TP1 TP2
Standard power unit
(Power unit A)
BKDS-7091
(Power unit B)
Test connector
CN-1150 board
TP2 (+5 V) 5 E1 (GND)
CN-1150 board
TP1 (+12 V) 5 E1 (GND)
A side (Component side)
Adjustment potentiometer
RE-146 board
1RV2
RE-146 board
1RV1
8-2. BKDS-7017
8-7