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I had a problem with the mains transformer, I did not know the voltages on the secondary, this manual helped me to solve this problem, thanks for the manual!
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Great manual, great quality copy, complete parts reference and scematics, Thank you
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Very good as always. Also this manual appears clear and well processed. I know it will help me to work on this TV. Thank you a lot! Matteo
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complete wiring diagram, without the part list. high quality copy. thanks for promptly.
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Well done scan of a useful manual. It will be useful in my workbench!!
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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