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Service Technical Information
MODEL NO.
TV− SE141 K,EH
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| SUBJECT |
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| No power(Notes on replacing EEPROM) |
| REF.No. | :G − A0− 089− E1 | |||
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| DATE | :30. JAN. 2001 |
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REVISION : Additional description in Countermeasure <CONTENTS>
Take the following measures with regard to complaints that the power shuts off or cannot be turned on in relation to the model above.
<COUNTERMEASURE>
1. Check the condition of the TV set (whether it is in the protection mode against a power supply
error) by the following steps a ∼ e.
a. Check that the power cannot be turned on from either the power button on the TV set or the remote controller
b. Press the "TEST" key on the jig remote controller to see if the power comes on (if it does not come on, the microprocessor may be broken).
If the protection function is on during power supply error detection, pressing the "TEST" key makes the LED flash in green and an AGING display is shown.
Pressing the keys on the remote controller in the following order instead of pressing the "TEST" key will also bring up the AGING display.
"ENTER" "AV MODE" "SLEEP" "MENU" "POWER"
c. Once the AGING display is shown, press the "TEST" key to erase the AGING display and disconnect the power supply cord.
∗If you have had no problem in operation up to this point, there is no problem with the microprocessor and the EEPROM.
d.Connect the power supply cord.
Check that the power is turned on by pressing the "Power" button on the TV set / remote controller (complete the procedure by performing steps 2 and 3 below).
e. If the
2. Check the R617 resistance (when the resistance is excessive or OPEN, a power supply error is detected).
When R617 is 1/8 W, change it to 1/4 W (this has already been changed for models with Serial
No.S∗∗∗∗ 0C∗∗∗∗∗ | or later). |
∗When replacing the EEPROM (IC3), refer to the "Description" in the table below to select an appropriate EEPROM. Different models/specifications require different EEPROMs.
Refer to the NOTE below.
NOTE
Turning on the power after replacing EEPROM activates data writing between microcomputer and EEPROM. (The writing takes approximately 1 minute.)
After completion of data writing, power is automatically turned on.(Do not disconnect the AC cable while data is being written.)
After replacing EEPROM, readjust and verify electrical adjustment to the service manual.
| Ref. | Parts Code | Description |
| Remarks | ||||||||
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R617 | 88− 130− | 394− | 080 | RES,390K− 1/4W J |
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| D9 | 87− A40− | 235− | 080 | ZENER,MTZJ9.1C |
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| IC3 | SV− T00− | 102− | 010 | IC,SLA24C04− | D(TV− | SE211 K) |
| − | ||||
| IC3 | SV− T00− | 103− | 010 | IC,SLA24C04− | D(TV− | SE141 K) |
| − | ||||
| IC3 | SV− T00− | 104− | 010 | IC,SLA24C04− | D(TV− | SE211 EH) |
| − | ||||
| IC3 | SV− T00− | 105− | 010 | IC,SLA24C04− | D(TV− | SE141 EH) |
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