Teac AI-301DA, Service Manual

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Important Information for Service Stations and Customers
TECHNICAL INFORMATION
No.
cp- 1609
DATE
10th Jun. 2016
TEAC consumer equipment: 8 products,
Countermeasure of soldering failure of filter part
Target model
AI-301DA-B / AI-301DA-S / AI-301DA-SP/B / AI-301DA-SP/S /
UD-301-B /UD-301-S / UD-501-B / UD-501-S
Failure confirmed
Mounting the EMI filter parts of the design change that was implemented for the August,
2015 or later products was started.
But we found there are some cases of becoming the non-soldering by float of the other
side if the changed filter shifts to one side of PCB pad, because the changed filter size is
smaller than the previous filter.
Regarding this issue, effected products range is wide, so the model used, the target lot, the
PCBA used, the target part location (the qty. used) and the failure symptom in case of
becoming the non-soldering are summarized to the next page or the later.
Please implement the following countermeasure for the PCBA of the target model.
Countermeasure
Please implement additional soldering work for the target filter part until each PCB is
revised.
- Target part E0231634 FILTER,ELKE470FA G
E0231644 FILTER,ELKE101FA G
E0231654 FILTER,ELKE102FA G
<Example>
Additional soldering by hand work