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A good manual! fast service and good qualityi for pdf document.
thanks!
 ;
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
HCD-GSX100W
Record/Playback Head Azimuth Adjustment Procedure: 1. Mode: Playback (FWD)
test tape P-4-A100 (10 kHz, � 10 dB) SPK board SPEAKER terminal (J357) L-CH, R-CH
Adjustment Location: Record/Playback/Erase Head
level meter
set + �
Head azimuth adjustment screw
2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak.
L-CH peak Output level
within 1dB within 1dB
Tape Speed Check Mode: Playback
Screw position
test tape WS-48B (3 kHz, 0 dB) set
Screw position
R-CH peak L-CH peak R-CH peak
frequency counter
+ � SPK board SPEAKER terminal (J357) L-CH, R-CH
3. Mode: Playback
test tape P-4-A100 (10 kHz, � 10 dB) L-CH SPK board SPEAKER terminal (J357) L-CH oscilloscope
set R-CH R-CH
V
H
1. Insert the WS-48B into the deck. 2. Press the bB button on the deck. 3. Confirm that the frequency counter reads 3,000 ± 90 Hz. Sample value of Wow and Flutter: 0.3% or less W.RMS (JIS) (WS-48B)
waveform of oscilloscope
in phase 45° good
90° 135° 180° wrong
4. Reapeat step 1 to 3 in playback (REV) mode. 5. After the adjustments, apply suitable locking compound to the parts adjusted.
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