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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 .
LC-20B2E
picture, No sound Fluorecent lamp failure to light up
Check all the settings microprocessor's adjust process menu.
Remove F2 F4 and No Is there short-circuiting?
Do F4 check the load side. Replace F2 and F4. Does F1 function?
Yes
P901 and Is pin (34) of in Check the OFL1 line, IC1201 connection cable. the "H" state? and their peripheral parts. outputs, +38V, +16V, +9V, T701 primary side periphery, +5V -8V normal? Q751, Q753 and P901. Are T701's secondary Is there short-circuiting of No
No Yes No
peripheral parts. waveform normal?
Is T701's primary oscillator Check Q3603 and their Is the Q3603 short-circuiting?
Yes
Check T701's secondary T5701 T5702 primary Q5701~Q5703 and load.
No Is there short-circuiting of Check T5701, T5702,
connection cable. side periphery, Q751~Q753.
TROUBLE SHOOTING TABLE
12
Replace the fluorecent lamp with new one and check again.
Yes
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