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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.
1
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4
A
4) No Power
Check the condition of the input power & cable connection. (JP35(3V3STB, A+12V, +6.5V), JP36(5VSTB,35V), JP34(5V), JP33(S_16.5V)) Check the condition of on-board regulators. Check for short circuits between each power terminal and the ground.
B
No Power When Powered On
#5,6,7(3V3STB) at JP35 in Main Assy
NG
Check Power supply unit & the short circuit between 3V3STB and GND
#3(5VSTB) at JP36 In Main Assy Waveform 1 #9,11(M_SDA/SCL) at J1(When power on) In Main Assy
NG
Check Power supply unit & the short circuit between 5VSTB and GND
NG
Check Power supply unit & Panel Module
C
Check 1V8VDD 2V5VDDLine at U47,48 In Main Assy Waveform 2 The signal waveform of Y1 in Main Assy NG Check the power of +3V3_PLL and replace the part of Y3 NG Check the state of soldering in U47, U48 and related components.
D
Check the other Power of Power supply unit (A+12V,+6.5V,5V,+16.5V)
NG
Check for short circuits between each power terminal and the ground
Change Main Assy
� Waveform
E
<Waveform 1>
<Waveform 2>
F
T01
132
1 2
T01
PDP-5016HD
3 4
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