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There are currently no product reviews.
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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.
 ;
THIS MANUAL IS VERY GOOD AND VERY CLEAR
PLEASE NOTE IT DOES NOT CONTAIN THE SETUP INFORMATION TO ALIGHN THE GEARS IN THE CD MECH IT DOES SHOW ALL THE PARTS AND THEIR LOCATIONS .
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7.1.2 Protection Circuit
DC detection
A
Detection method
XPROTECT port (A/D)R397: 56 K-ohms Less than 0.6-0.8 Vdd 2.8 sec after Mute: On Speaker Relay: Off Shifting to STBY after 3 sec "AMP ERR" flashes for 3 sec Hold the STANDBY key pressed for 10 sec. The unit will recover if the duration of detection is 3 sec or less.
Detection start time Process
Display Recovery Remarks
B
Overload detection
Detection method
XPROTECT port (A/D)R363: 27 K-ohms 0.4-0.6 Vdd 2.8 sec after Mute: On Speaker Relay: Off Shifting to STBY after 3 sec "OVERLOAD" flashes for 3 sec Press the STANDBY key.
Detection start time Process
C
Display Recovery Remarks
Fan (temperature) and short-circuit of the power supply circuit
Detection method
XPROTECT port (A/D) 0.4 Vdd or less 1.0 sec after Mute: On Speaker Relay: Off Shifting to STBY No display Hold the STANDBY key pressed for 10 sec.
Detection start time Process
D
Display Recovery Remarks
Fan stop
Detection method
E
XPROTECT port (A/D) 0.4 Vdd or less 1.0 sec after Mute: On Speaker Relay: Off Shifting to STBY No display Hold the STANDBY key pressed for 10 sec.
Detection start time Process
Display Recovery Remarks
F
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VSX-C301-S
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