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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
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Great copy of the manual, has all information required for servicing,
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I work at an authorized service center and I can tell if a manual is as it should be. This one is. It may be a scan, but a very good one at that. The interesting part for me was the curcuit diagram which was scanned at high quality, making it as good as the original. I will definitely be back as a customer. I need not say this, but I will: the price was the best. Thank you owner-manuals.com .
ADJUSTMENTS
1. 2. 3. 4.
E-F BALANCE ADJUSTMENT Connect oscilloscope to test point TP502 and TP503 on CD PCB. Traverse Waveform Press power switch on. Put test disc(TCD-781) in and press play button then pause button. 0V Pressing Fast Forward button, adjust RV502 to get that the oscilloscope waveform is symmetrical on the bottom in relation to 0V, and check this level. * Design and specifications may be subject to change without notice.
A
B
3. TAPE SECTION
Output Level Measurement Point R-CH Input Level Measurement Point L-CH 47 kohm 47 kohm VTVM Input Point Scope
Test Tape be used
Tape MTT-111N MTT-114N MTT-5511 Contents 3 KHz 10 KHz Blank Use Tape Speed Adjustment Head Azimuth Adjustment Record Frequency Property
1. 2. 3. 4. 5.
HEAD ADJUSTMENT (AZIMUTH) 10KHz test tape(example: MTT-114N) must be used for this adjustment. Connect to VTVM or oscilloscope to the headphone jack or speaker terminal. Press the play button. Adjust the azimuth by using a screw driver to maintain the max. L&R output voltage. Adjust tape A(1), tape B(2) respectively, Please secure the azimuth position by using locking paint.
RECORDING BIAS OSCILLATOR FREQUENCY ADJUSTMENT 1. Connect the frequency counter to TP603, GND. 2. Press the REC button. 3. Adjust L603 to obtain 80 KHz±100Hz
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