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As Always you can find here manuals even of difficult TV scheme which are scan in almost perfect way.clear and fast!!!!!
Great work thanks!
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Incredibly clear!!!! Well done, complete and wonderful. It could not better than this!!!!
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Thank You for fast delivery for the sheme.
Everything allright.
Thanks & best regards Franz
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again you did a very good job. It was fast too. Photocopy are really readable and clear
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Probably it never existed a 1081 official service manual from Commodore, it's look more like a NAPCEC service manual & diagrams compilation of the 1084 series and his variants, like the nap6523, 8cm505, 1084S, 1084P and obviously the 1081. It's more complete than other scans and the quality of the scans also are far superior. It has two circuit diagrams variants of the 1081, mono and stereo versions. It doesn't include a diagram for the Philips CM8500 or CM8501, they look like the 1081 but they are slightly different.
3-2. Switch Settings on the CPU-246 Board and LEDs Description
Other areas of the LED These LEDs indicate the operation stasus of the SUB CPU and the memory. D0 : Lights : Flash memory (IC136 on the CPU-246 board) of the SUB CPU is damaged. Lights off : Flash memory (IC136 on the CPU-246 board) of the SUB CPU is normal. D1 : Lights : Flash memory (IC136 on the CPU-246 board) of the SUB CPU is empty. Lights off : Flash memory (IC136 on the CPU-246 board) of the SUB CPU is normal. D2 : Lights :
The ROM (IC138 on the CPU-246 board), RAM (IC137 on the CPU-246 board) or dual port RAMs (IC134 or IC135 on the CPU-246 board) of the SUB CPU is abnormal. Light off : The ROM (IC138 on the CPU-246 board), RAM (IC137 on the CPU-246 board) and dual port RAMs (IC134 or IC135 on the CPU-246 board) of the SUB CPU are normal. D3 : This LED lights when the system is running in SUB CPU flash memory access inhibit mode due to the S5 switch setting on the CPU-246 board. D102, D112 (M12) : These LEDs indicate the result of checking the operating condition of the main CPU. D295 (Green color) (R9) : POWER (+5V) Lights when the power is supplied to the CPU-246 board. D8 (Green color) (R9) : POWER (+12V) Lights when the power is supplied to the CPU-246 board.
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DVS-7150E MMP1
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