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The manual was exact the thing that was promised. My old car stereo is working again thanks to the information supplied.
;
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!!!!!!!!
 ;
You can fully trust on this one!
All the schematics are very crear an in one piece per page
;
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
6-2
6-2
TUNER BOARD - LAYOUT DIAGRAM
TUNER ADJUSTMENT TABLE
Waverange Input frequency Input Tuned to Adjust Output Scope/Voltmeter
VARICAP ALIGNMENT FM 87.5 - 108MHz MW
FM/AM-version, 10kHz grid
108MHz 87.5MHz 1700kHz 530kHz 1602kHz 531kHz
L303 check T301 check T301 check
4V �0.2V 0.9V �0.2V
1
3.4V - 3.5V 0.6V - 0.7V 3.6V - 3.7V 0.6V - 0.7V
530 - 1700kHz
FM/MW-version, 9kHz grid
531 - 1602kHz FM IF FM FM RF FM 87.5 - 108MHz 108MHz 87.5MHz AM IF
A
mod=1kHz �f=�22.5kHz
108MHz 87.5MHz
L302
4
MAX
C
MW 450kHz �f=�10kHz VRF = 0.5mV
(as low as possible)
558kHz (or 560kHz)
T301
4
fo symmetric
AM RF MW
FM/MW-version, 9kHz grid
1494kHz 558kHz 1500kHz 560kHz
B
1494kHz 558kHz 1500kHz 560kHz
TC302
max. fo symmetric
ECO6, general with ferrite antenna, 070799
531 - 1602kHz MW
FM/AM-version, 10kHz grid
MW ferrite coil
4
530 - 1700kHz
�f = �30kHz VRF as low as possible
TC302
MW ferrite coil
1) If sensitivity of frequency counter is too low adjust to max. channel separation
2) RC network serves for damping the IF-filter while adjusting the other one.
(input signal: stereo left 90% + 9%, adjust output on right channel to minimum)
Repeat
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