Service Bulletin
Service Bulletin INF2003-01 - January 2003
To: All Infinity Service Centers
Model: Basslink (version w/ LC - Remote Level Control); Basslink X
Subject: Dead or No Power
Warranty labor rate: MINOR repair
In the event you receive a Basslink subwoofer with the complaint: “The unit is completely dead with no LED indicator, or sound”, check the following area on the PCB:
1)Set the unit on a padded surface and remove all external cables.
2)On the amplifier faceplate, remove only the (14) Phillips mounting screws as shown in Figure 1.
3)Pull amplifier assembly from the enclosure. Unplug ribbon cable at M202 and Molex speaker connector at M101; remove amplifer.
4)Check Main PCB for a damaged (open) trace in the main 12VDC path; see exact location shown in the two illustrations. It is near the large main filter caps, next to braided connection “5” lead from the transformer.
5)If the trace is damaged: clean, solder, and bridge the connection with copper solder braid (solder wick used for solder removal), or a short piece of 14 or 12 gauge buss wire.
6)After the repair is complete, new gaskets should be added to the amplifier mating surface; two pairs are required, four gaskets total: Infinity part#
7)
8)Connect 12VDC to the unit and test.
| Models |
|
| Serial number |
|
| Status |
|
| Action |
|
| Basslink (version w/ LC - |
|
|
|
| Check Power Supply |
|
|
|
| |
| Remote Level Control) |
|
|
|
|
|
| Repair Circuit Trace |
| ||
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
| PCB Trace For Damage |
|
|
| |
| Basslink X: |
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
| Basslink (version w/ LC - |
|
|
|
|
|
|
|
|
| |
| Remote Level Control) |
|
|
|
| Modified by factory |
|
| NONE REQUIRED |
| |
|
|
|
|
|
|
|
|
| |||
| Basslink X: |
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
33
