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A good manual! fast service and good qualityi for pdf document.
thanks!
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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
AV-16N7
SELF-CHECK FUNCTIONS
1. Outline This model has self-check functions given below. When an abnormality has been detected, the SUB POWER is turned off and the ON TIMER LED flashes to inform of the failure. An abnormality is detected by the signal input state of the control line connected to the microcomputer.
2. Self-check items Check item Over-current protection Details of detection An over-current on the low B line is detected. Method of detection The main microcomputer detects the possible abnormality at 20msec. intervals and judges the results in every 24 time. Of the 24 times, if NG is detected more than 13 times, it is judged that there is an abnormality. State of abnormality When an abnormality has been detected, the SUB-POWER is turned off. While the SUBPOWER is being turned off, the POWER key on the remote control unit is not operational until the power cord is taken out and put in again. DITTO
CRT NECK protection
Operation of CRT NECK protection circuit
DITTO
3. Self-check indicating function When an abnormality has been detected at about 3 seconds after the power is turned on, the SUB POWER is turned off immediately and the ON TIMER LED flashes.
Power on
After about 3 seconds
Detection of an abnormality
Start of detection
Flashing ON TIMER LED
SUB-POWER OFF
[ Indication by the LED ] Item Over-current and CRT NECK protection LED flashing intervals At 0.24-second intervals
26
No. 56093
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