TECH TIPS
Troubleshooting tips and solutions to common service problems
For models: IL50, IL100s, MSW-1, IL60, IL120s, IM2.6, IM3.5c TIP# INFTT2003-03
Intermezzo, Interlude and Modulus MSW-1 Power Supply Repair
Recommended for instances where the PCB has been damaged, for the above models only
:
1) Change all MOSFETS, even for one device failure.
2) Clean and repair the PC board if required (See Tech Tip HCG2002-01 - Damaged Printed Circuit
Boards).
3) Replace the Hybrid Bash Controller IC:
U1 in models:
IL50,IL100s,MSW-1,IM2.6,IM3.5c
U501 in models:
IL60, IL120s
Infinity part # HC1011
FAILURE TO FOLLOW THE INSTRUCTIONS ABOVE MAY RESULT IN UNIT FAILURE WHEN THE
AMPLIFIER IS POWERED UP
IL50
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