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Exactly what was needed to assess the product - excellent value and great service
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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
SECTION 4 ELECTRICAL ADJUSTMENTS
PRECAUTION � Adjustment should be performed in the order given.
AM IF ADJUSTMENT Adjust for a maximum reading on level meter T1 455 kHz AM (MW) FREQUENCY COVERAGE ADJUSTMENT (Except CD820L: FR) Adjust for a maximum reading on level meter L4 CT4 530 kHz [526.5 kHz] 1,605 kHz [1,606.5 kHz]
TUNER SECTION
[FM] Setting: Function switch: RADIO BAND switch : FM
FM RF SSG
0 dB=1 µV
0.01 µF 22.5 kHz frequency deviation by 400 Hz signal. Output level: as low as possible FM lead wire antenna terminal
AM (MW) TRACKING ADJUSTMENT (Except CD820L: FR) Adjust for a maximum reading on level meter L1 (CD820) L1-1 (CD820L: AEP, UK) CT3 600 kHz [598.5 kHz] 1,400 kHz [1,399.5 kHz]
[AM (MW) /LW] Setting: Function switch: RADIO BAND switch : MW/LW
AM RF SSG Put the lead-wire antenna close to the set.
LW FREQUENCY COVERAGE ADJUSTMENT (CD820L: FR) Adjust for a maximum reading on level meter L4 CT4 160 kHz 240 kHz
LW TRACKING ADJUSTMENT (CD820L: FR)
30% amplitude modulation by 400 Hz signal. Output level: as low as possible
Adjust for a maximum reading on level meter L1-1 160 kHz CT3 240 kHz
level meter 4� set + � speaker terminal
LW FREQUENCY COVERAGE ADJUSTMENT (CD820L: AEP, UK) Adjust for a maximum reading on level meter CT6 145 kHz
� Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.
FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter L3 CT2 87.5 MHz 108.0 MHz
LW TRACKING ADJUSTMENT (CD820L:AEP, UK) Adjust for a maximum reading on level meter L1-2 CT5 NOTE: [ ] : Italian model � Abbreviation FR : French model 160 kHz 240 kHz
FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L2 CT1 87.5 MHz 108.0 MHz
�9�
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