|
There are currently no product reviews.
 ;
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.
 ;
Excellent high quality schematics brought my old Heidelberg back to life. Fast download at a reasonable price. Thanks.
;
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.
;
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
;
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.
A-307R, A-207R
6. ADJUSTMENT
6.1 IDLE CURRENT ADJUSTMENT
¶ CAUTION : Heatsinks� (Q323�Q326) DC level is equal to +B or -B. Don�t touch them or you will be electric shocked. 1. Connect the measuring instrument as shown in Fig.6-1. (R373 or R374) 2. Turn the POWER switch to ON. 3. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 10mV ± 1mV. 4. Ages for 5 minutes. 5. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 11mV ± 1mV.
DC Voltmeter
DC Voltmeter
AF ASSY
SIDE A
R373 R375
R374 R376
Heat Sink
Heat Sink VR301 VR302 Heat Sink
Heat Sink
CN202
Fig.6-1 Adjustment Method
25
|
