Replacing the AC Power Fuse
1.Turn the unit off.
2.Disconnect the AC power cord.
3.Slide open the fuse drawer completely.
4.Remove and replace the fuse in the rear compartment.
5.Close fuse drawer completely.
6.Reconnect the AC power cord.
Note: Use fuse type 5 x 20 mm 1.0 Amp fast blow (IEC 127F).
Care and Maintenance
Great care has been taken to ensure that your ATP7500 preamplifier/processor is as flawless in appearance as it is in performance. The front panel is finished with a
CAUTION: UNDER NO CIRCUMSTANCES SHOULD A LYE SOLUTION, POWDERED CLEANSER OR ABRASIVE CLEANER BE USED ON THE UNIT. NEVER SPRAY LIQUIDS DIRECTLY ON THE UNIT.
ATI Service Information
In the event that the unit must be returned to the factory, an RMA (Returned Merchandise Authorization) number must be requested from Amplifier Technologies, Inc. prior to shipping the unit to ATI. Under no circumstances should the unit be shipped to ATI without prior authorization.
Please contact: | Amplifier Technologies, Inc. |
| 1749 Chapin Road |
| Montebello, CA 90640 |
| Phone: |
| Email: |
It is important that you include a note describing the exact problem you are experiencing with the unit so that our repair technicians may provide better service. The unit must be sent freight PREPAID to ATI and we will return it to you on a prepaid basis as long as a problem was found (continental U.S. only).
In order to assure its safety, use only the original packing carton. If you no longer have the proper packing materials, a duplicate set may be ordered for a minimal charge. Always ship via UPS of other approved carriers and add proper insurance coverage. Never ship you unit via Parcel Post.
Troubleshooting | For Future Reference | |
Your preamplifier/processor is designed for trouble free | ||
Model Number______________________________ | ||
operation. If you follow the instructions in this manual you | ||
should enjoy many years of high quality listening enjoyment. | Serial Number ______________________________ | |
However, as with any sophisticated electronic device, there | ||
may be occasional problems upon initial installation, or | Date of Purchase ____________________________ | |
during the life of the unit. The items on the list below are a | ||
brief guide to the minor problems that you may be able to | Where Purchased ___________________________ | |
correct yourself. If these solutions do not rectify a problem, | ||
or if the problem persists, contact us for assistance. |
| |
Problem | Solutions | |
|
| |
No sound, Status indicator and display are OFF. | Check if AC power cord is securely plugged in. | |
| Check AC power fuse, replace if necessary. |
NO sound, Status indicator and display are ON.
Check all RCA cables for proper connections. Verify correct source is selected.
Verify power amplifiers are turned on.
NO remote control function and Status indicator OFF.
Press Power button on the front panel. Verify the Status indicator turns red.
NO remote control function and Status indicator is red.
Press AVC button on remote first. Check to ensure batteries are installed.
Check if the IR receiver path (located inside the display lens) is blocked by any obstructions.
All functions work except in tuner mode. | Check if antenna cables are properly connected. |
Audio path works fine but the video signal does not | Verify that all video and audio connections correspond to the |
correspond to the program source or vice versa. | correct source legend on the rear panel. |
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