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Das Service Manual war von der ersten bis zur letzten Seite sehr informativ und hilfreich. Die Darstellung aller Teile war klar und der Text gut lesbar.
Vielen Dank, das war nicht der letzte Download bei ownner-manuals.com.
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It's a grate service manuals.Have many details and the writing it's so clear.You have all you want in manual,nothing missing,belive me.I'm verry satisfied of this manual.
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Great scanned service manual
Usefull informations.
I will buy again!
Best Regards
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The manual describes this product very good. It has the basic things to know and also a more detailed look. Very well made!
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An excellent document to assist in the repair of my old personal tape player. It includes full circuit diagrams and physical layout drawings and full instructions on disassembly and fault finding.
Well worth the meagre price.
IL50
IL50 ADJUST BIAS PROCEDURE
(Mandatory when any output MOSFET transistors Q3,4,7,8 are replaced)
1. Amplifier should be unplugged and OFF. 2. Remove Amp assembly from cabinet; remove rear plastic cover if present. All wires exiting the cover can remain connected unless they will prevent you from removing the amplifier or accessing potentiometers on the Linear board PCB in the following steps. 3. Locate the Linear board assembly (PCB with the output transistors) 4. Adjust R11 and R27 fully Counter Clockwise. See diagram below. 5. Apply 120 VAC power to unit, Turn power switch ON. 6. Verify LED illuminates on the front gain control dial unless you have disconnected the plug. 7. Remove shorting plug on terminal J7 on Linear board, and insert current meter, set to the low mA range. 8. Verify initial current is less then 1 mA. 9. Adjust R11 Clockwise until current meter reads 5 mA + the initial current from step #8. 10. Adjust R27 Clockwise until current meter now reads 10 mA + the initial current from step #8. 11. Turn amplifier OFF. Disconnect AC power to unit. 12. Remove current meter; insert shorting plug back in terminal J7. 13. Replace cover (if present), wires if disconnected, and replace amplifier back into cabinet.
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