Read Panasonic KX-NT511PRUW / KX-NT511PRUB (serv.man2) Service Manual Supplement online
10
KX-NT511PRUW/KX-NT511PRUB
Note:
Refer to waveform
(1) and (2) Waveform (P.44) .
Yes
END
No
Measure the voltage at TP5V.
Is it 5V?
Measure the voltage at TP 3.3V.
Is it 3.3V?
Yes
Related parts: R233,R241,D211,C236,C239
Check the soldering.
Resolder or replace parts as needes.
Related parts: IC202,R234-R239,C235,C237,
C243,C241,C245,C247,C249,
C251,C253,L211
No
No
Yes
Measure the voltage at TP 5V.
Is it 5V?
Measure the voltage at TP 3.3V.
Is it 3.3V?
Yes
No
No
Yes
Yes
Yes
Measure the voltage at TP CL±VDD1.8V.
Is it 1.8V?
Measure the voltage at TP CL±VDD1.2V.
Is it 1.2V?
Yes
Related parts: IC302,C304,C305,C344
Related parts: IC302,L307,C303
No
No
Yes
Confirm the waveform of reset signal at
TP PWR_RST.
See the communication waveform(1)*.
Measure the frequency of clock signal at
Pin 1 of X1
is it 25MHz?
See the communication waveform(2)*.
Yes
Related parts: IC301,R305,R306,C326-C328
Related parts: X1,C101,C102,R110,R111,IC302
No
No
Yes
Recheck the TEST POINT(ST0-ST3).
See Table-1. (P.19)
Is it "NOT Error (No.14)" ?
Related parts: See Table-2(P.20) to
Table-5(P.2 ).
No
Yes
Confirm the LCD display.
Is it sorking?
Related parts:
See 9.2 LCD Does Not Operate.(P.2 )
RA110,L103,C129,C130,C131,
C132,C133,C134,C135,R140,
R141,R142,R143,R145,Q106,
CN2,LCD Module
*
1
Each IC302 has its own MAC address.
When replacing the PCB1, remove the former
MAC address label from the bottom of the unit
and affix the included label which indicates the
new MAC address.
A
Click on the first or last page to see other KX-NT511PRUW / KX-NT511PRUB (serv.man2) service manuals if exist.