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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
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Great copy of the manual, has all information required for servicing,
GM-X422, GM-X322
16
Gain Control Power Indicator
The power indicator lights If sound is too low, even when the
volume of the car stereo used along with power is switched on. this power amplifier is turned up, turn gain control on back of the power amplifier clockwise. If the sound distorts when the volume is turned up, turn the gain control counter-clockwise.
- SETTING THE UNIT
� Set the gain control to �NORMAL� when BFC (Beat Frequency Control)
this amplifier is connected to a Pioneer car stereo with RCA output jacks. If the sound Switch is too low or distorts, adjust the gain control. (ES and EW models)
8. OPERATIONS AND SPECIFICATIONS
If you hear a beat while listening to an AM broadcast with your car stereo, change the BFC switch using a small screwdriver.
LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch
Set LPF/HPF select switch as follows according to type of the that is connected to speaker output connector and the car stereo system:
LPF/HPF Select Audio frequency range Speaker Remarks Switch to be output Type
LPF (left) Very-low-frequency range Sub-woofer Connect a sub-woofer.
OFF (center) Full range
Bass Boost Level Control
Bass control can boost the level because it is not necessary control. around frequency selected by the bass � Level Control, Bass Boost for the speaker you use. boost frequency control 0 to 12 dB. Frequency Control can be adjusted only
Bass Boost Frequency Control (GM-X422)
HPF (right) Low-frequency range Tweeter If you want to cut the veryYou can select a bass boost frequency
high-frequency low-frequency range from 40 to 120 Hz with the bass boost
when the LPF/HPF select switch is set to a position other than HPF.
Fig. 8
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