Panasonic KX FLB758RU User Manual

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CROSS REFER ENCE:TEST FUNCTIONS (P.74)
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6.5.11.5. CHECK THE STATUS OF THE DIGITAL BOARD
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6.5.12. INITIALIZING ERROR
After the power is turned on, the ASIC initialize s and checks each IC.
The ROM, SDRAM, and modem are checked.
If initializa tion fails for the ICs, the system will not boot up.
In this case, please find the cause as follows.
CROSS REFER ENCE:NG EXAMPLE (P.219)
CHECK THE STATUS OF THE DIGITAL BOARD (P.134)
POWE R SUPPL Y BOARD SECTION (P.155)
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CROSS REFER ENCE:CHECK THE STATUS OF THE DIGITAL BOARD (P.134)
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6.5.13. ANALOG BOARD SECTION
This chapter provides the testing procedures required for the analog parts. A signal route to be tested is determined depend ing
upon purposes. For example, the handse t TX route begins at the handse t microphone and the signal is output to the telepho ne
line. The signal mainly flowing on this route is analog. You can trace the signal with an oscilloscope. The signal flow on each
route is shown in the Check Sheet here. If you find a specific problem in the unit, for example...

3. No ring tone (or No bell)
CROSS REFER ENCE:CHECK SHEET (P.137)
NCU SECTION (P.227) 4. No tone dialing
CROSS REFER ENCE:
CHECK SHEET (P.137)
6.5.13.2. DEFECTIVE ITS (Integrated Telephone System) SECTION
1. No handse t and speake rphone transmission / reception
Perform a signal test in the ITS or the NCU sectionand locate a defective point (where the signal disappe ars) on each route
between the handse t microphone and telepho ne line (sending), or between the telepho ne line and the handse t speaker...

6.5.13.3. DETECTIVE TAM INTERFACE SECTION
 1. The FAX turns on, but does not arrive through TAM.
CROSS REFER ENCE:
TAM INTERFACE SECTION (P.230)
 2.  A FAX is receive d, but won´t switch from TAM to FAX.
CROSS REFER ENCE:
ANALO G BOARD SECTIO N (P.137)
TAM INTERFACE SECTION (P.230)
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6.5.13.4. OPERATION PANEL SECTION
Refer toTEST FUNCTIONS (P.74).
1. NO KEY OPERATION
2. NO LCD INDICATION
CROSS REFER ENCE: TEST FUNCTIONS (P.74)
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