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Very helpful and complete manual. Maybe only one negative is schematics have sometimes unreadable name of the parts. But it's not a big problem.
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Excellent high quality schematics brought my old Heidelberg back to life. Fast download at a reasonable price. Thanks.
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This document is just what I was looking for, it´s very useful, it contains adjustment procedures for the final stage of the power amp and also
has a complete wiring diagram and description of the main semiconductors used in the design.
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Dear Sirs,
Thank you for the fast support, the manual does provide all necessary information to repair the radio. All schematics are in a good quality for reading.
The manual fits 100% to my requirements as a technican.
Kind regards Thomas
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the big video recorder format s-vhs many features delicate in loading system of the cassette. Such machines are no longer manufactured, it would be too expensive.
SECTION 4 MECHANISM ADJUSTMENTS
PRECAUTION 1. Clean the following parts with a denatured-alcohol-moistened swab: record/playback head pinch roller erase head rubber belts capstan idlers 2. Demagnetize the record/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 unless otherwise noted. � Torque Measurement Mode Forward Forward Back Tension Reverse Reverse Back Tension FF, REW Torque Meter CQ-102C CQ-102C CQ-102RC CQ-102RC CQ-201B Meter Reading 36 to 61g�cm (0.50 � 0.84 oz�inch) 2 to 6g�cm (0.026 � 0.082 oz�inch) 36 to 61g�cm (0.50 � 0.84 oz�inch) 2 to 6g�cm (0.026 � 0.082 oz�inch) 61 to 143g�cm (0.85 � 1.98 oz�inch)
SECTION 5 ELECTRICAL ADJUSTMENTS
DECK SECTION 0 dB=0.775 V
1. Demagnetize the record/playback head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head.) 2. Do not use a magnetized screwdriver for the adjustments. 3. After the adjustments, apply suitable locking compound to the parts adjust. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. 5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.) 6. The adjustments should be performed for both L-CH and Rch. 7. Switches and controls should be set as follows unless otherwise specified. 8. Set to test mode. (Press key switch same time GROOVE ENTER/NEXT and DISC 4 � Test Tape Tape P-4-A100 WS-48B P-4-L300 Signal 10 kHz, �10 dB 3 kHz, 0 dB 315 Hz, 0 dB Used for Azimuth Adjustment Tape Speed Adjustment Level Adjustment button.)
� Tape Tension Measurement Mode Forward Reverse Tension Meter CQ-403A CQ-403R Meter Reading more than 100 g (3.52 oz) more than 100 g (3.52 oz)
Record/Playback Head Azimuth Adjustment DECK A DECK B Note: Perform this adjustments for both decks Procedure:
test tape P-4-A100 (10KHz, �10dB) main board CN207 Pin 1 (L-CH) Pin 3 (R-CH) level meter set main board CN207 Pin 2 + �
� 32 �
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