DOWNLOAD Panasonic KX-UT248RU / KX-UT248RU-B (serv.man3) Service Manual ↓ Size: 3.83 MB | Pages: 101 in PDF or view online for FREE

Model
KX-UT248RU KX-UT248RU-B (serv.man3)
Pages
101
Size
3.83 MB
Type
PDF
Document
Service Manual
Brand
Device
PBX / SIP PHONE
File
kx-ut248ru-kx-ut248ru-b-sm3.pdf
Date
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Panasonic KX-UT248RU / KX-UT248RU-B (serv.man3) Service Manual ▷ View online

37
KX-UT248RU/KX-UT248RU-B
Table-8
No. 3,5
 DSP No Function
[Check Points]
Measure the frequency at pin5 of IC508.
Is it 13.824MHz?
Measure the voltage at both ends of C534.
Is it 3.3V?
Measure the voltage at both ends of C362.
Is it about 2V? (This voltage is changed by the input voltage.)
[Related Parts]
X501,R585,R530,IC508,R608,R610,R613,R614,C565 
IC505,R540,R505,C534,C535,C537
D304,R312,R313,R314,R329,C362
[Related Circuit]
38
KX-UT248RU/KX-UT248RU-B
9.2.
LCD Does Not work
Note:
Refer to waveform (5) and (6) in  Waveform (P.69)
39
KX-UT248RU/KX-UT248RU-B
9.3.
ASIC Does Not work
9.3.1.
ASIC Data Error
Note:
Refer to waveform (8) in  Waveform (P.70)
40
KX-UT248RU/KX-UT248RU-B
9.4.
Handset Does Not work
9.4.1.
Receive
9.4.2.
Send
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