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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.
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Rapid, clear well done as all the scheme I downloaded from this site. Great job very functional and very useful
Plasma Display PD421
Audio input signal for PC/DVI, DT V, and DV D modes is entered into the audio processor IC, MSP3450G , and audio input signal for VID E O/S -VIDEO, and SCART modes is first selected in MUX 8851 a nd entered into the audio processor. As in other chips, the audio processor (MSP34 50G) uses the SCL and SDA line to control volume, and left/right balance and mono/stereo. The L/ R audio signal sent by MSP3450 is a mplified in the amplifier, TA2 024 (UAU1) and sent to the speaker. TA2024B support 10W(based on impeda nce 8Y ) of output for each L/R.
3. Trouble shooting 1) Diagnosing defective module If the power does not come on or if the module operates abnormally, check module defect. To do this, remove the rear cover and A/V B/D to reveal the module s logic B /D. The following figure represe nts the s/w on the logic B/D. � SW 2001
1 Signal External 1 up
2 2 up
3 3
4 4 up Remark Forwarding Criteria
down
Internal
up
down
up
down
If the switch is set to internal signals, it will operate without external signals, but the screen will be displayed in full white. Therefore the module operation can be checked without the A/V board. Here, be aware that the pin 8 and pin 9 of the power B /D� s CN802(11p), which is located above the module� s logic B /D, must be shorted and the A/C power supplied in order for the module to oper ate normally. Pin 8 is marked as PS-ON below the connector (CN802). If module itself is tested and it does not power on or the picture is abnormal, the module is defective. When reconnecting the A/V B /D, make sure to change the switch to external signals. - The most common module defect i s the appearance of a black or bright vertical line.
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