Service Manuals, User Guides, Schematic Diagrams or docs for : panasonic DVD DMR-EX768EB TI_EX768-78-88_Block_Noise_rev1_1
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Confidential - For Authorised Personnel Only
Ref No: QA0002GM110908REV1.1
TECHNICAL INFORMATION
A BY D EST H IS N PL SK UA Date 10/09/2008
AL CH DK F I L NL RO SLO FIN Country Reported
B CZ E GB IRL LT P S TR UK
Product Category: DVD Recorder
Subject: Block noise appears when recording a Digital Channel received from Winter Hill -
MUX2 Picture Breaks up
Model(s) Affected:- DMR-EX768EB-K DMR-EX768EB-S
DMR-EX78EB-K DMR-EX88EB-K
Symptom Recording from digital tuner, block noise appears
Cause: The problem is caused by noise picked up on the IIC data bus line. The block noise on the
screen varies with the condition of the data bus line signals.
Remedy The block noise can be remedied by changing both R7804 and R7805 to 10k ohm.
(Current resistor is 470 ohm.)
Part number: ERJ3GEYJ103 = 1 pc, (order 2pcs)
Objective Serial Numbers The following models were changed from 2nd week of July/2008
VW8GA001001 and higher (model was produced on two
DMR-EX768EB-K
VQ8G7001501 and higher production lines at the same time)
DMR-EX768EB-S VW8FA001305 and higher
DMR-EX78EB-K VQ8GB001343 and higher
DMR-EX88EB-K VQ8GB001301 and higher
Schematic
R7804/R7805 Location on PCB
R7804/R7805 (470 to 10k) R7804 R7805
Warranty Claims - Please use the following IRIS and Activity codes
Condition Code Symptom Code Section Code Defect Code Repair Code
IRIS Codes:
1 34B TUN Y I
Activity Guarantee Repair status Source
SAP Activity Codes:
R A W D
Note: Failure to use the correct IRIS and Activity codes may result in the claim being rejected
Panasonic 1 of 1
Document No: PUK-QA_TI
Issue: 1.00
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