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About the service it's very fast and reliable. About the manual the quality is high enough to read even the tiniest details on the wiring diagrams so you can't ask much more than that, let it alone for a manual of a product from 20 years ago. Thank you, very satisfied.
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The downloaded quality was as good as the orignial
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This is a great and complete Service Manual for the Sharp GF8585HB. Giving full and detailed technical insight. Good to find these manuals online.
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Everything was ok with the manual. If I have a small complaint, is that I ordered it during the weekend and I think you guys were closed. But I did receive it late Sunday. I will surely order from you again
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Best Service! Very fast and easy to handle. Fast Download an you can come back every day to download again
GTO 75.4/75.4II INSTALLATION AND SETUP
To Neon Power Supply
To Neon Power Supply
Figure 13. Installing neon tubes in a JBL GTO amplifier.
TROUBLESHOOTING
SYMPTOM No audio (POWER LED is off) No audio (PROTECT LED flashes every 4 seconds) No audio (PROTECT LED is on) LIKELY CAUSE No voltage at BATT+ or REM terminals, or bad or no ground connection DC voltage on amplifier output SOLUTION Check voltages at amplifier terminals with VOM Amplifier may need service; see enclosed warranty card for service information Make sure amplifier cooling is not blocked at mounting location; verify speaker system impedance is within specified limits (see �Specifications� on the next page) Check vehicle charging system for defective voltage regulator SYMPTOM No audio (PROTECT LED is on) Distorted audio LIKELY CAUSE Voltage more than 16V or less than 8.5V on BATT+ connection regulator Input sensitivity is not set properly, or amplifier or source unit is defective Short circuit in speaker or wire SOLUTION Check vehicle charging system for defective voltage Check INPUT LEVEL setting; or check speaker wires for shorts or grounds Remove speaker leads one at a time to locate shorted speaker or wire, then repair Check speaker connections for proper polarity
Amplifier is overheated
Distorted audio and PROTECT LED flashes Music lacks �punch�
Speakers are not connected properly
No audio (PROTECT and POWER LEDs flash)
Voltage less than 9V on BATT+ connection
7
 $4.99 GTO75.4II JBL
Quick Start Quick start guide ( sometimes called quick guide ) contains most important information on how to use…
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