Sharp GF-575H Service Manual page 6

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AC Power
Supply Socket
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AC/OC Selector ©
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BATTERY
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Dolby NR Circuit
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Tronstormer
F701 T7Ol
Socket
Dolby NR Circuit
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Level Meter Amp
0500 ~ 0504 Level Met
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Deck 2 Record/Playbock Head
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'APLO Deck 2 Ploy
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Tape Speed Control Circuit
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APLO/APPS Circuit
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Indicator
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Microphone
Playback Head
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Built in M i c r o y Deck!
Figure 9 BLOCK DIAGRAM (AUDIO)
9
DISASSEMBLY
Caution:
Prior to the disassembly, be sure to draw the AC power supply
lead plug from the AC power supply socket of the unit and to
unload the cassette compartment with a cassette tape.
1.
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Removal of Front Cabinet and Back Cabinet
Pull out five control knobs, one fine tuning control knob,
and one tuning control knob, all at the front surface of the
unit. See Figure 10-1.
. Remove the battery compartment.
. Remove nine screws at the front cabinet and back cabinet.
See Figure 10-2.
. Hold up the front cabinet, and remove one socket from the
power P.W.B. See Figure 10-3.
Removal of Main Frame
. Remove the antenna lead at the tuner P.W.B. See Figure
10-4.
. Remove one socket at the power switch P.W.B. See Figure
10-4.
. Remove four screws at the main frame. See Figure 10-4.
Removal of Mechanism Block
. Remove three sockets at the mechanism P.W.B. and three
sockets at the record/playback P.W.B. See Figure 11-1.
. Detach the tape counter drive belt from the tape take-up
reel disk. See Figure 11-2.
. Remove three screws at the mechanism block, and shift the
mechanism block forwards and detach. See Figure 11-2.
Removal of Tuner Frame
. Remove the dial pointer (sub) while hooking a string over
its root. See Figure 11-3.
. Detach the dial scale plate by holding its lower part. See
Figure 11-2.
. Remove one socket at the record/playback P.W.B. See
Figure 11-4.
. Remove one screw at the tuner frame. See Figure 11-4.
. Detach the tuner frame while also detaching the dial string.
. Remove one screw and two tabs at the dial stringing frame,
and detach the frame. See Figure 11-5.
Removal of Record/Playback P.W.B.
. Remove eight screws at the record/playback P.W.B., and
shift it upwards and detach. See Figures 11-6 and 11-7.
Figure 10-2
Figure 10-3
Figure 10-4