TECHNICAL BULLETIN
26-Jun-00
Page 1 of 1
MODEL:
EU 51 / 66 / 68 / 80 ST
PROBLEM:
CRT output IC protection
File: EU51-80 spgap tb.doc
This is a tentative solution to avoid damages to the output video amplifier IC901 (TDA6107) caused by
electric discharges between electrodes of the CRT. The modification should be applied to units found
with damaged video amplifier IC.
Instructions
Add the following components to the
CRT board. Refer to the figure and
table below for parts location and
specifications.
Components information
Item
Part Number
Description
From
To
Comments
1
EUSPARK
300V Spark gap
Point G
Aqua
2
EUSPARK
300V Spark gap
Ground
Aqua
Spark gap
devices have no
polarity
3
QDTBOUZ6R2BS
Zenner diode
6V2 400 mW
1-PL901
(Cathode)
Ground
(Anode)
Regards,
Alcides Berta
TEAC Australia Pty Ltd.
