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I PURHASED THIS PRODUCT BECAUSE I WAS HAVING PROBLEMS WITH MY CDR20 HARMAN KARDON RECORDER. WHICH I PURCHASED NEW 12 YEARS AGO. AFTER REVIEWING THE MANUAL, I WAS ABLE TO ADJUST THE TENSIONER IN THE SYSTEM. WORKS LIKE A CHAMP!.
SAVED ME AT LEAST 100.00 WHICH WAS WHAT A SERVICE REPAIR STATION WANTED. GREAT MANUAL EASY TO READ. SPECIALLY AFTER I PRINTED THE PAGES WHICH DEALT WITH MY RECORDER. THANKS A LOT!!!!!!!!
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You can fully trust on this one!
All the schematics are very crear an in one piece per page
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I have never bought a service manual which is as competely readable as this althogh it was a scanned pdf. Thank you for this succesful manual also cheaper than other sites.
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Thanks for a very good and readable servicemanual. Just what I needed as a "dinosaur technician". I really recommmend this site and will come back.
Åsbjörn
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The manual I purchased was just what I needed. I was glad to find a site where I can find so many manuals on a wide variety of products.
TROUBLESHOOTING GUIDE
AUDIO CAN NOT BE RECORDED
Is BIAS level O.K at L4005 ? Yes
No
Is the voltage at pin 2 of L4005 5.8V ? Yes
No
Check POWER circuit.
Is the voltage at pin 29 of IC1002 about 5V ? Yes
No
Replace IC1002.
L4005 is broken or shorted. Is there AUDIO signal at pin 5 of CP4002 ? Yes No Check the circuit between pin4 of IC4001 to pin 5 of CP4002.
Is there AUDIO signal at pin 11 of IC4001 ?
No Replace IC4001.
Yes
Check the lead wire and connector to A/C HEAD.
E-19
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