Notes On Power Supply Block - Sony HDW-F500 Maintenance Manual

2-1. Notes on Power Supply Block

2-1-1. Primary Circuit Block and Warning on
Electrical Hazards
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The primary circuit consists of the AC-204 board
with AC inlet, the circuit breaker, the POWER
switch, and the power supply unit.
Take precautions against electrical hazards when
performing maintenance and service operations with
the power turned on.
The primary voltage continues to be supplied to the
AC-204 board, circuit breaker, and POWER switch
even after the POWER switch is turned off. For
operations which require no current conduction, turn
off the POWER switch and disconnect the power
cord.
2-1-2. Resetting the Circuit Breaker
The circuit breaker of the primary circuit is mounted on the
power panel of this unit. When an overcurrent flows in the
primary circuit, the breaker operates and the button
protrudes.
If the breaker operates, eliminate the cause of the flow of
the overcurrent, and the push the button.
HDW-F500E MMP1
Section 2
Service Overview
2-2. Cleaning Clogged Heads
Clean using a cleaning cassette tape (specified product:
BCT-HD12CL) when the rotary heads are clogged.
For the cleaning, refer to "5-2-2. Cleaning by Cleaning
Cassette Tape".
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Clean the rotary heads in the prescribed procedure using a
specified cleaning cassette tape. If not, the rotary heads
may be a brasive or damaged.
If the head clogging is not solved using a cleaning cassette
tape, use cleaning cloth.
For the cleaning using a cleaning cloth, clean according to
the procedure of "5-2-3. Cleaning the Rotary Heads" after
confirming the cautions and preparation in "5-2-1. Clean-
ing by Cleaning Cloth.
2-1