Adjustment Of Secondary Power Supply Voltage; Hds-7150/7100 (Hkds-7695/7695A); Removal Of The Hkds-7695/7695A - Sony HDS-7150 Installation Manual

Section 8

Adjustment of Secondary Power Supply Voltage

8-1. HDS-7150/7100 (HKDS-7695/7695A)

The HDS-7150/7100 has the five power supplies of +5 V (A), +5 V (B), +5 V (C), +3 V, +12 V, and
_5 V. The CKG-26 board has the test terminals to which the probe of the digital voltmeter can be
connected for measuring the power supply voltages of +5 V (A), +3 V and _5 V. The VSW-66 board has
the test terminal for measuring the power supply voltages +5 V (B). The OUT-20 board has the test
terminal for measuring the power supply voltages +5 V (C).
The connector CN4 on the CN-1539 board on the top of the fan assembly is used for the voltage measure-
ment of +12 V. After all plug-in boards are installed, check the power supply voltages inside the HDS-
7150/7100 following the procedure in Section 8-1-2 or Section 8-1-3.
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Confirm that the power supply unit HKDS-7695/7695A and the HDS-7150/7100 are correctly connected
by the DC power supply cords.
8-1-1. Removal of the HKDS-7695/7695A Front Cover
(1) Loosen the two upper screws A fixing the front cover.
(2) Lift up the front cover in the direction of the arrow 1, and pull it toward you in the direction of the
arrow 2.
Front cover
1
2
Front cover
A
HKDS-7695/7695A
1
Front panel
8-1
HDS-7150/7100