Panasonic KX-PRW110RUW / KX-PRW120RUW / KX-PRWA10RUW Service Manual ▷ View online
41
KX-PRW110RUW/KX-PRW120RUW/KX-PRWA10RUW
(O) SP phone Audio Check
and Confirmation
-
1. Link to Base which is connected to Line Simulator.
2. Set line voltage to 48 V and line current to 50 mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -30 dBm (600
2. Set line voltage to 48 V and line current to 50 mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -30 dBm (600
Ω)/1 KHz to Line I/F and measure Receiving level at SP+
and SP-.
5. Confirm that the level is -7 dBm ± 3 dB and that the distortion level is < 5 %.
(vol = Max at SP (8
Ω Load))
C1, C36, C37
(P) DC/DC Converter 3.4V
Supply
+3.4V
1. Confirm that the voltage between testpoint +3.4V and GND is 3.55V +/- 0.2V.
IC1, L3, Q8,
R20, C21,
R22, R21, C22
(Q) Regulator 3.0 V Supply
Confirmation
CP3V
1. Confirm that the voltage between testpoint +3.0V and GND is 3.0 V ± 0.2 V.
IC1, Q7, C42,
C43, R30,
R31, R32
(R) DC/DC Converter LED+
Supply Confirmation
LED+
1. Confirm that the voltage between testpoint LED+ and GND is 9.0V ± 0.5 V.
(Power is supplied when LED in on)
IC, L4, Q9,
C18, C24,
C25, R23, R24
Items
Check
Point
Procedure
Check or
Replace Parts
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KX-PRW110RUW/KX-PRW120RUW/KX-PRWA10RUW
9.3.2.
Troubleshooting for Speakerphone
When the customer’s telephone line corresponds to the following conditions, and the transmission signal of SP-Phone is
interrupted, performing the next set up to a cordless handset will improve it to some extent.
Conditions
interrupted, performing the next set up to a cordless handset will improve it to some extent.
Conditions
1. When customer’s line has less line loss.
ex.) The customer is using optical fiber, ISDN terminal adaptor, or PBX.
In this case, receiving signal is strong and it may affect transmission signal.
In this case, receiving signal is strong and it may affect transmission signal.
2. When the other party is talking from noisy place.
ex.) The other party is using cellular phone. The background noise is very loud.
In this case, the noise from the other party (i.e. surrounding noise) may affect transmission signal.
In this case, the noise from the other party (i.e. surrounding noise) may affect transmission signal.
Setting Method (*1)
* Do not enter New Data if the Default Data is different from the table above.
Note
(*1) Refer to Handset (P.21) of Engineering Mode to enter the Address or New Data.
Model
Content
Address
Default Data
New Data
PRWA10
TX 6dB Louder
02 E0
02 E1
02 E1
02 DC
02 DD
02 DE
02 DD
02 DE
02 DF
F5
32
32
FC
5F
01
00
01
00
8A
19
FC
5F
02
00
02
00
TX 12dB Louder
02 E0
02 E1
02 E1
02 DC
02 DD
02 DE
02 DD
02 DE
02 DF
F5
32
32
FC
5F
01
00
01
00
CC
CC
CC
FC
5F
03
00
03
00
TX 6dB Lower
02 E0
02 E1
02 E1
02 DC
02 DD
02 DE
02 DD
02 DE
02 DF
F5
32
32
FC
5F
01
00
01
00
AC
65
FC
5F
00
00
00
00
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KX-PRW110RUW/KX-PRW120RUW/KX-PRWA10RUW
10 Disassembly and Assembly Instructions
10.1. Disassembly Instructions
10.1.1. Base Unit
ձ
Remove the 2 screws.
2 screws
ձ
Press the cabinet cover.
Then, pull up to remove the cabinet cover.
Cabinet
cover
cover
Press
ղ
Press
ղ
ղ
ճ
ճ
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KX-PRW110RUW/KX-PRW120RUW/KX-PRWA10RUW
Lower cover
Solders
Remove the solders then remove the main P.C.Board.
Main P.C. board
մ
մ
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