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There are currently no product reviews.
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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
ELECTRICAL ADJUSTMENT
PRACTICAL SERVICE FIGURE
Tape speed: Wow & flutter: Take-up torque: F.F torque: REW torque: S/N ratio:
J103 EARPHONE
A MAIN C.B
3000 Hz ± 60 Hz Less than 0.55% (4.8 cm/s) Less than 0.8% (2.4 cm/s) 20 ~ 50 g-cm (FWD) More than 55 g-cm More than 55 g-cm More than 56 dB (DC, PB) More than 26 dB (DC, R/PB) Less than 3.0% (DC, PB) Less than 7.0% (DC, R/PB) Less than 2.0 mV (PB, Vol Max., DC) Less than 16 mV (R/PB, Vol Max., DC) Less than 0.3 mV (PB, Vol Min, DC)
Distortion:
Noise level:
VR202 VR201 PLAYBACK SPEED VR402
Erasing ratio: Test tape
More than 44 dB (1kHz) TTA-100 TTA-150 TTA-160 TTA-330
IC BLOCK DIAGRAM
IC, MM1206XF
1
R/P HEAD
3
2
1. Azimuth Adjustment Settings: � Test tape: TTA-330 � Test point: EARPHONE JACK (J103) � Adjustment location: Azimuth adjustment screw � PAUSE: OFF � VOLUME: Maximum. Method: Play back the test tape, and adjust so that the output (8 kHz) becomes maximum.
3. Tape Speed Adjustment (2.4cm/s) (TP-VS610 only) Settings: � Test tape: TTA-150 or TTA-160 (TAPE CENTER) � Test point: EARPHONE JACK (J103) � Adjustment location: VR402 � PAUSE: OFF � VOLUME: Maximum � PLAYBACK SPEED: Normal (Speed volume center) � REC MODE: Extended Method: Play back the test tape, and adjust for 3000 Hz ±10Hz
2. Tape Speed Adjustment (4.8 cm/s) Settings: � Test tape: TTA-100 (TAPE CENTER) � Test point: EARPHONE JACK (J103) � Adjustment location: VR202 � PAUSE: OFF � VOLUME: Maximum � PLAYBACK SPEED: Normal Method: (Speed volume center) Play back the test tape, and adjust for 3000 Hz ±10Hz
TRANSISTOR ILLUSTRATION
C
B
E 2SC2712 2SC3326 2SC4081 2SC4116 2SC4213 DTC114 RN2304
9
10
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