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Confidential
For Authorised Service Agents Only Ref No: MQM0040CM100610REV1
TECHNICAL INFORMATION
A BY D EST H IS N PL SK UA Date 10/06/2010
AL CH DK F I L NL RO SLO FIN Country Reported
B CZ E GB IRL LT P S TR Germany
Product Category: LCD Television / LCD IDTV
Subject: Abnormally loud high-pitched noise from the P-PCB
Model(s) Affected: TX-L26C20E TX-L26C20ES TX-L26C20B (Chassis:GLP25)
Symptom / Abnormally loud high-pitched oscillation noise from the P-PCB.
Cause: This problem can occur on rare occasions due to certain combinations of the component
tolerances.
Remedy / The issue can be improved by changing R871 on the P-PCB (Part No: TNP0EP015AA)
Method: to 2.7k, 0.5W. (Part Number: ERDS1TJ272T)
R871 R871
NOTE: This Technical Information applies to units prior to serial number N*-0311001
This information does not apply to units after this serial number.
Warranty Claims - Please use the following IRIS and Activity codes Please note: This is a Field Service
Activity Codes: Guarantee Status Repair Type Location Source activity and is reflected by the
Activity Code - S
(UK Only) A S F D
Symptom Section Defect
Condition Repair
IRIS Codes: Area Type Code Area Code Area Code
1 1 4 5 1 PSU 2 N i
Note: Failure to use the correct IRIS and Activity codes may result in the claim being rejected
Document No: MQM_TI
Panasonic 1 of 1 Rev: 1.00 GM210710