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Perfect quality. Was able to fix speed drifting on my Sansui Turntable using the service manual instructions for PLL adjustment.
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I am very happy regarding the online purchase of this manual from Owner-Manuals.com as with this I could set right my Denon CD player and Amplifier.
I once again sincerely thank them for the prompt service which was rendered to me.
N. Shanker
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More than pleased with my prurchase, very good product for the price.
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Manual-link came 30 minutes after having paid for an extremely rare (40 years old) item (sony icr-120) and helped me to get the radio rework again. So really good help for me, fast and reliable delivery and -taken that into consideration- a very reasonable price for that service. So thanks again! Mike, Germany
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Some of the pictures in this manual are a bit irritating. I had to dissassemble the unit and some of the screws have different threads, which is not mentioned in this manual. Also some of the drawings of the boards look different than the actual boards.
After all, the manual was very useful. I was able to recalibrate the capstan drive and it is working fine again.
SECTION 3 ELECTRICAL ADJUSTMENTS
AM Section Band button : AM (ICF-C723) : MW or LW (ICF-C723L) Volume : MAX
AM RF signal generator Put the lead-wire antenna close to the set.
� Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. ( ) : AEP, UK, Italian, Australian, E model only
AM IF ALIGNMENT Adjust for a maximum reading on level meter. T1 455kHz AM <MW> FREQUENCY COVERAGE ADJUSTMENT Reading on digital Adjust parts Frequecy display voltmeter L6 530kHz (531kHz) 2.5 ± 0.1V (ICF-C723) 2.65 ± 0.1V (ICF-C723L) Less than 11.0V Standard 9.5V (Less than 10.0V) (Standard 9.0V)
30% amplitude modulation by 400Hz signal. Output level : as low as possible
FM Section Band button : FM Volume : MAX
FM RF signal generator 0.01µF set 22.5kHz frequency deviation by 400Hz signal. Output level : as low as possible FM ANT IN
JW13
confirmation
1,710kHz (1,602kHz)
AM <MW> TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L3 :ICF-C723 580kHz (621kHz) L3�1 :ICF-C723L CT1 1,490kHz (1,404kHz)
ICF-C723L
level meter
LW FREQUENCY COVERAGE ADJUSTMENT Reading on digital Adjust parts Frequecy display voltmeter More than 2.2V confirmation 153kHz (Standard 3V) CT4 279kHz LW TRACKING ADJUSTMENT 9.0 ± 0.1V
8� set
speaker terminal
[MAIN BOARD] (Conductor side)
digital voltmeter
Adjust for a maximum reading on level meter. L3 � 2 162kHz CT2 243kHz
FM FREQUENCY COVERAGE ADJUSTMENT Reading on digital Adjust parts Frequecy display voltmeter L5 confirmation 87.5MHz 108.0MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L4 87.5MHz CT3 108MHz 3.0 ± 0.1V 10 ± 1V
Adjustment Location
C55
: Main board (See page 8)
6
5
4
3
2
1
W705 C15
�6�
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