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Service Technical Information
MODEL NO. SUFFIX
TV FA21T2 / FA2110 KER / SH−
/ F21T1 / SHR
SUBJECT
Notes on repairing REF No :G A1 111 E0−− −
Buzz noise(TV F21T1 only)−
DATE :08. APR. 2002
<CONTENTS>
The peripheral circuit that is connected to Pin 34 of IC301 in TUNER block has been changed.
Please confirm the circuit construction(Circuit or Circuit 2), and use the appropriate parts for each
type of the circuit.
Modifications
Ref No. Circuit 1 Circuit 2 Affected Models
Q101 No mounting TR,2SC3779 All models(On tuner block)
Q103 C TR,2SC27140 No mounting All models(On tuner block)−
R107 C RES,U 1K 1/16W C RES,U 1.5K 1/16W TV FA21T2 / FA2110 only−− − − −
(On tuner block)
JW197 Jumper wire RES,27K 1/8W TV F21T1 only−−
(On the line of IC301 Pin34)
Schematic diagram (Wiring diagrams are shown on the next page.)
Circuit 1 Tuner Block The line of Pin34 of IC301(SAND)
Circuit 2 Tuner Block The line of Pin34 of IC301(SAND)
Ref. Parts Code Description Remarks
−−− − −JW197 88 121 273 080 RES,27K 1/8W J
G R Code No. Access Code Modified Ser. No. Parts Schedule
−− − − − −
TU101
11
IF1
Q103
2SC27140
R107
9V
FL201
FL204
(TV
−
F21T1:1.5KΩ)
1KΩ
9V
IC301
34
SAND
T601
2
SAND
JW197
(TV
−
FA21T2/TV
−
FA2110:27KΩ)
Jumper wire
IC301
34
SAND
T601
2
SAND
JW197
27KΩ
TU101
11
IF1
Q101
2SC3779
R107
9V
FL201
FL204
1.5KΩ
9V