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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!!
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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