1/2
Service Technical Information
| MODEL NO. | SUFFIX |
| TV− FA21T2 / FA2110 | KER / SH |
| / F21T1 | / SHR |
|
|
|
SUBJECT
Notes on repairing
Buzz noise(TV− F21T1 only)
REF No :G − A1− 111− E0
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) | |||||
|
|
| 9V | 9V |
| IC301 |
|
| T601 |
| TU101 |
|
|
| FL201 |
|
|
|
|
|
|
|
|
|
| JW197 |
|
| |
|
|
|
|
|
|
|
|
| |
|
|
|
|
| FL204 |
| Jumper wire |
|
|
|
|
|
|
| SAND 34 |
| 2 | SAND | |
|
|
|
| Q103 |
|
| |||
| IF1 | 11 |
|
|
| (TV− FA21T2/TV− FA2110:27KΩ ) |
| ||
|
|
|
| 2SC27140 |
|
|
|
| |
|
|
| R107 |
|
|
|
|
|
|
|
|
| 1KΩ (TV− | F21T1:1.5KΩ | ) |
|
|
|
|
| Circuit 2 | Tuner Block |
| The line of Pin34 of IC301(SAND) | |||||
|
|
| 9V | 9V |
| IC301 |
|
| T601 |
|
|
|
|
|
|
|
| ||
| TU101 |
|
|
| FL201 |
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
| JW197 |
|
|
|
|
|
|
| FL204 |
| 27KΩ |
|
|
|
|
|
| Q101 |
| SAND 34 |
|
| 2 SAND |
| IF1 11 |
|
|
|
|
|
|
| |
|
|
| 2SC3779 |
|
|
|
| ||
|
|
|
|
|
|
|
| ||
|
|
| R107 |
|
|
|
|
|
|
|
|
| 1.5KΩ |
|
|
|
|
|
|
| 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 | ||
− | − |
| − |
| − |
| − | − |
|
