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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.
Rapid, clear well done as all the scheme I downloaded from this site. Great job very functional and very useful
Great copy of the manual, has all information required for servicing,
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 .
really a very good manual even sometimes the quality is no so good as before still very readible and very very useful!
DECK MECHANISM ADJUSTMENT
5. Audio/Control (A/C) Head Adjustment
Purpose: To insure that the Tape passes accurately over the Audio and Control Tracks in exact Alignment in both the Record and Playback Modes.
5-1. Preliminary Adjustment (Height and Tilt Adjustment) Perform the Preliminary Adjustment, when there is no Audio Output Signal with the Alignment Tape. Test Equipment/ Fixture
â¢ Blank Tape â¢ Screw Driver(+) Type 5mm
Test Conditions (Mechanism Condition)
â¢ Play the blank tape
â¢ Tilt Adjustment Screw(C) â¢ Height Adjustment Screw(B) â¢ Azimuth Adjustment Screw(A)
1) Initially adjust the Base Assembly A/C Head as shown Fig. C-5-1 by using the Height Adjustment Screw(B). 2) Play a Blank Tape and observe if the Tape passes accurately over the A/C Head without Tape Curling or Folding. 3) If Folding or Curling is occured then adjust the Tilt Adjustment Screw(C) while the Tape is running to resemble Fig. C-5-3. 4) Reconfirm the Tape Path after Playback about 4~5 seconds.
Ideal A/C head height occurs, when the tape runs between 0.2~0.25mm above the bottom edge of the A/C head core.
A/C Head P4 Tape
A/C Head Base Fig. C-5-1 Fig. C-5-3
X-Value Adjustment Hole
Azimuth Adjustment Screw(A)
Tilt Adjustment Screw(C) Height Adjustment Screw(B)
A/C Head Assembly Fig. C-5-2