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This is a very good quality print (scan) of the original SONY service manual. The original from Sony is on very thin paper. Nevertheless it is very clear and sharp and excellent readable. I'm very satisfied to have now this rare document. I've looking for it many years (infrequent). It contains very detailed circuit diagrams, exploded views, part lists, PCB view with good readable connection lines. Very recommended.
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A complete manual with all the needed details of calibrations and service instructions about the radio receiver.
A big deal.
Many thanks !
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Fast delivery and good quality copy. To be recommended
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Excellent product, very clear print. Detailed circuit and assembly diagrams - this enabled me to repair my CD player with confidence. I highly recommend this site.
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Fast access, 100% correct and complete service manual
WM-FX271FP SECTION 3 MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened swab : playback head pinch lever assy capstan wheel assy rubber belt 2. Demagnetize the playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage (2.5 V) unless otherwise noted. Torque Measurement Mode FWD Torque meter CQ-102C Meter reading 1.97 to 4.90 mN � m 20 to 50 g � cm (0.28 to 0.69 oz � inch) less than 0.19 mN � m less than 2 g � cm (less than 0.03 oz � inch) more than 5.89 mN � m more than 60 g � cm (more than 0.83 oz � inch) Tape Speed Adjustment Procedure:
test tape WS-48A (3 kHz, 0 dB) 16 � set digital frequency counter
SECTION 4 ELECTRICAL ADJUSTMENTS
PRECAUTION
� Supplied voltage : 2.5V � Switch and control position VOLUME control : maximum AVLS switch : NORM � Test Tape Type WS-48A Signal 3 kHz, 0 dB Used for tape speed adjustment
TAPE SECTION
0 dB = 0.775 V
FWD Back Tension
CQ-102C
0000
FF, REW
CQ-201B
i jack (J301)
1. Playback WS-48A (tape center part) in the FWD state and adjust RV601 so that the frequency counter reading becomes 3,000 Hz. Specification Value: Digital frequency counter 2,910 to 3,090 Hz Adjustment Location:
RV601
7
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