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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
POWER AMPLIFIER (IC101: LA4598)
The power amplifier is a two-channel amplifier with standby switch. The following table shows the pin function of IC101. Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Terminal Power GND Ch1 B.S. Ch1 OUT VCC Ch1 N.F. Ch1 IN D.C. Pre GND Stand by Ch2 IN Ch2 N.F. Ch2 OUT Ch2 B.S. NC In/Out In � Out In In In � In In In In Out � � Ground (0V) source Terminal for a bootstrap capacitor Channel 1 output +9V source Negative feedback input Channel 1 input Terminal for a decoupling capacitor Ground (0V) source Power control signal input. 0 V: Off, +9 V: On Channel 2 input Negative feedback input Channel 2 output Terminal for a bootstrap capacitor Not used Function
LED DRIVING
La~Lg, Lp LVDD CPU LSI01 MSM6755B
LG
CC1~CC3 Q106~Q108 LED Driver
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