Panasonic CT-26WX15UN Посібник з експлуатації - Сторінка 6
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8 Auto diagnosis feature
This receiver incorporates a new self diagnosis feature. With this new feature will be easier for the technician to detect the failures. There is a LED located by the keyboard on the front
panel, this LED will start flashing when a failure is detected by the circuits located in specific areas, depending on how many times the LED is flashing, this will tell you what circuit should
be checked. Make a count of flashing and see the table shown below. Please use this feature effectively especially for intermittent problems.
SOS of front LED
FLASHES
POSSIBLE CIRCUIT
1
POWER+140
2
LOW B+ D.C.
3
N/A
4
SUB 9V
5
HI VOLTAGE
6
IC4001
7
IC4201
8
IC4401
9
DIGITAL TO DIGITAL INTERFACE LOCK DDIFLOCK
10
AUDIO AMP.
Note:
Flash only indicate a hint on a possible circuit failure and must not be used as a specific component diagnostic, (i.e. for IC4001 all related circuitry must be checked).
8.1 SOS History Check
When a certain SOS event is triggered by a malfunction on the receiver, the MPU stores on EEPROM the last SOS events occurred.
To check SOS history, self check procedure must be performed by pressing ACTION and POWER buttons on the receiver's keypad (3 seconds). The self check display appears showing
the SOS sign with the last shutdown malfunction event(s) occurred.
Note:
If two or more SOS events caused the receiver's shutdown, all of the shutdown event will be shown at the time of displaying self check screen.
IMPORTANT:
At this moment the SOS history is cleared from EEPROM, so if self check is performed again the SOS number events won't be displayed on-screen unless SOS is triggered again.
9 EEPROM copy jig
This CTV has a feature that allows to clone or back-up main EEPROM data adjustments from a CTV to other by connecting a jig to the CTV set. A jig part number TXFJIG02SER, is
available through Matsushita/Panasonic Services.
http://tsn.pstc.panasonic.com/viewing/NA/CT-26WX15N/SIMP/MTNC050528A1/doc/M...
SOS
140 OCP
SOS 2
N/A
SUB 9V
HHS
GC3 FM
GC3 FS
GC3 I
SOS 4
Self Check screen.
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11/3/2008