Panasonic KX-TG2248S Service Manual ▷ View online
Cross Reference:
Check Power (P.34)
Error Message Table (P.34)
Check Playback (P.36)
Check Record (P.35)
Check Battery Charge (P.37)
Check Link (P.37)
Check the RF Unit (P.38)
Check Handset Transmission (P.43)
Check Handset Reception (P.43)
Check Caller ID (P.43)
12 TROUBLESHOOTING GUIDE
33
KX-TG2248S
Cross Reference:
Power Supply Circuit (P.56)
Reset Circuit (P.57)
Note:
Flash Memory is IC300.
DSP is IC201.
12.1. Check Power
12.2. Error Message Table
Display
Symptom
Remedy
E 1
The initialization was tried, but it could not be done.
1.
Check the peripheral circuit of Flash Memory visually.
2.
Confirm that the voltage is added to the power supply pin.
If no voltage is detected, replace the Flash Memory because
it might be defect.
it might be defect.
3.
Solder the Flash Memory again.
E 3
E 9
E 9
When the adjustment data was checked, an error was detected.
(The adjustment data may not be written.)
(The adjustment data may not be written.)
E 7
The defect of synthesized voice was detected.
(The synthesized voice may not be written.)
(The synthesized voice may not be written.)
E 2
E 8
E 8
E A
E E
E E
The defect of Flash Memory was detected.
When Flash Memory has the fatal detect, replace Flash Memory.
This error hardly occurs.
This error hardly occurs.
E 4
The defect of DSP was detected.
(The chip in DSP may have a defect.)
(The chip in DSP may have a defect.)
1.
Confirm Pins of DSP or resoldering.
2.
Confirm the oscillation frequency of DSP.
If no frequency is found, replace DSP because it might be
defect.
defect.
E 5
E 6
E L
E 6
E L
E
The defect of DSP was detected.
Replace DSP.
Note:
Flash Memory is IC300.
DSP is IC201.
34
KX-TG2248S
Cross Reference:
Telephone Line Interface (P.58)
Auto Disconnect Circuit (P.59)
Parallel Connection Detect Circuit (P.59)
SIGNAL ROUTE (P.66)
Note:
Flash Memory is IC300.
DSP is IC201.
12.3. Check Record
How to change the Auto Disconnect activation (time)
Some Telephone Company lines (fiber or cable) ON Hook and OFF Hook voltages are lower than conventional lines, which may
cause a malfunction of Auto Disconnect detection.To solve this problem, try changing the Auto Disconnect activation (time)
through the procedures below.
cause a malfunction of Auto Disconnect detection.To solve this problem, try changing the Auto Disconnect activation (time)
through the procedures below.
Auto Disconnect activation (time)
PROCEDURE
Status
Enable
2 sec [default]
“STOP”
→
”REPEAT”+”SP-PHONE”simultaneously
Stand-by
4 sec
”STOP”
→
”REPEAT”+”UP” simultaneously
Disable*
”STOP”
→
”REPEAT”+”DOWN” simultaneously
*If the “Disable” is selected, even if the parallel-connected telephone is OFF HOOK, the line isn’t disconnected.
35
KX-TG2248S
Cross Reference:
Power Supply Circuit (P.56)
Note:
Flash Memory is IC300.
DSP is IC201.
12.4. Check Playback
36
KX-TG2248S
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