Infinity Bass Link Service Manual

Infinity Systems Inc.                     250 Crossways Park Dr.     Woodbury, New York 11797 (516) 496-3400

 Service Bulletin INF2000-03 - October 2000

Warranty labor rate: MINOR repair

 To:

All Infinity Service Centers

 Model: Basslink (version w/o AUTO-ON switch or REMOTE GAIN)

 Subject: Unit will not turn off

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)  Remove the amplifier assembly from the enclosure.  If the amp is turned around and supported correctly,

no other connectors need to be unplugged.

4)  Add these two components:

1.0 Meg ohm 1/8W resistor, Infinity part# 299-1M

.01uf, 100v mylar capacitor, Infinity part# 140-PF2A103F

Solder these parts in parallel (See Figure 2); and attach to original location shown (See Figure 3), which is in

a narrow cavity between main power supply caps and transformer T101.  There are two empty pads on the

PCB for these parts with marked designators R272 and C273.

5)  New gaskets must be added to the amplifier mating surface; two pairs are required, four gaskets total:

Infinity part# 723D150  and #723C150

6)  Replace the amplifier assembly and tighten all mounting screws.  Use caution; a hand tool is

recommended to prevent stripping the threads in the enclosure.

7)  Connect +12v to the unit and a signal cable, after the unit cycles ON, (red LED should be lit), remove the

signal and remote connection only (or shut off the music source if using the Universal Interface).  Unit

should turn OFF after 3 - 10 minutes (as indicated by the red LED turning OFF).

Basslink

All serial numbers affected

(version w/o AUTO-ON
switch or REMOTE GAIN)

The unit will not turn off when the

signal is removed, and Remote

connection is switched off

Add:

R272   1 Meg ohm 1/8W Resistor

C273   .01uf 100v Mylar Capacitor

New amplifier gaskets #723D150, 723C150