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It was magic after so many years to still be able to source this info. It was equally amazing to return my Pioneer receiver to it near new sound quality AFTER NEARLY 30 YEARS! Thank you for this ability!
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Very quick and easy website to use and fast download of manual, quality of manual is excellent and will be pleased to use this service again in the future, thanks so much!
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Easy and secure way to get a complete service manual of a vintage hifi component. Only some parts of the print copy are dificult to read. Nice price!
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The manual is an excellent reproduction with complete schematics, made troubleshooting and repair a simple process.
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Up to now you are the BEST! Prompt-efficient and so reasonable ! I have been after SONY service manual for quite some time !Thank you very much ! I can recomend your service to
all my collegagues ! V.Bergfield .
IC BLOCK DIAGRAM
IC, KS57C0301
P0.0 /CLO P0.1 /TIO P0.2 /INT1 RESET BASIC TIMER INERRUPT CONTROL BLOCK WATCH TIMER INTERNAL INTERRUPTS P2.0-P2.3 P3.0 /SCK P3.1 /SO P3.2 /SI P3.3 /BUZ I/O PORT 2 I/O PORT 3 ARITHMETIC LOGIC UNIT FLAGS SERIAL I/O PORT P1.0 /KS0 /CIN0 P1.1 /KS1 /CIN1 P1.2 /KS2 /CIN2 P1.3 /KS3 /CIN3 I/O PORT 1 INSTRUCTION DECODER CLOCK STACK POINTER 8-BIT TIMER/ COUNTER XIN XOUT I/O PORT 0
PROGRAM COUNTER
PROGRAM STATUS WORD
COMPARATOR
256 x 4-BIT DATA MEMORY
2-KBYTE PROGRAM MEMORY
P0.0/CLO 1 P0.1/TIO 2 P0.2/INT1 3 P1.0/KS0/CIN0 4 P1.1/KS1/CIN1 5 P1.2/KS2/CIN2 6 P1.3/KS3/CIN3 7 XOUT 8 XIN 9 VSS 10
20 VDD 19 P3.3/BUZ 18 P3.2/SI 17 P3.1/SO
KS57C0301 (Top view)
16 P3.0/SCK 15 P2.3 14 P2.2 13 P2.1 12 P2.0 11 RESET
NOTE: Pin assignments are identical for the 20-pin DIP and SOP package.
IC, NJM2035
2-CH IN PUT 14 NC 13 12 TRIMMING 11 V+ 10 MPX OUT PUT 9 PILOT OUT PUT 8
2CH AMP TIME DIVISION MPX 1CH AMP Q
BUFFER
DIVIDER
19K
Q BUFFER 38K OSC AMP
1 1-CH IN PUT
2 NC
3 AC BYPASS
4 GND
5 AC BYPASS
6 YO CRYSTAL
7 TO CAPACITOR
8
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