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Model
KX-TG6511CAT KX-TG6511CAM KX-TG6512CAT KX-TG6512CAM KX-TGA650RUT KX-TGA650RUM KX-TGA651RUT KX-TGA651RUM
Pages
82
Size
2.19 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DIGITAL CORDLESS PHONE
File
kx-tg6511cat-kx-tg6511cam-kx-tg6512cat-kx-tg6512ca.pdf
Date

Panasonic KX-TG6511CAT / KX-TG6511CAM / KX-TG6512CAT / KX-TG6512CAM / KX-TGA650RUT / KX-TGA650RUM / KX-TGA651RUT / KX-TGA651RUM Service Manual ▷ View online

41
KX-TG6511CAT/KX-TG6511CAM/KX-TG6512CAT/KX-TG6512CAM/KX-TGA650RUT/KX-TGA650RUM/KX-TGA651RUT/KX-TGA651RUM
(K)* Frequency Offset Confir-
mation
-
Follow steps 1 to 3 of (I).
4.Confirm that the frequency Offset is < ± 50 kHz.
IC1, 
C802~C806, 
C808~C814, 
C819~C820, 
C822, 
C825~C827, 
C834, 
C860~C864, 
L801~L804, 
DA801, 
R801~R808
(L)* Frequency Drift Confir-
mation
-
Follow steps 1 to 3 of (I).
4.Confirm that the frequency Drift is < ± 35 kHz/ms.
IC1, 
C802~C806, 
C808~C814, 
C819~C820, 
C822, 
C825~C827, 
C834, 
C860~C864, 
L801~L804, 
DA801, 
R801~R808
(M)*
Sensitivity Receiver 
Confirmation
-
Follow steps 1 to 3 of (I).
4.Set DECT tester power to -88 dBm.
5.Confirm that the BER is < 1000 ppm.
IC1, 
C802~C806, 
C808~C814, 
C819~C820, 
C822, 
C825~C827, 
C834, 
C860~C864, 
L801~L804, 
DA801, 
R801~R808
(N)* Power RAMP Confirma-
tion
-
Follow steps 1 to 3 of (I).
4.Confirm that Power RAMP is matching.
IC1, 
C802~C806, 
C808~C814, 
C819~C820, 
C822, 
C825~C827, 
C834, 
C860~C864, 
L801~L804, 
DA801, 
R801~R808
(O) Audio Check and Confir-
mation
-
1. Link to BASE which is connected to Line Simulator.
2. Set line voltage to 48 V and line current to 40 mA.
3. Input -45 dBm/1KHz to MIC and measure Line output level.
4. Confirm that the level is -10 dBm ± 2 dBm and that the distortion level is < 5%
at TEL Line (600 
Ω Load).
5. Input -20 dBm/1KHz to Line I/F and measure Receiving level at REV+ and
REV-.
6. Confirm that the level is -21 dBm ± 2 dBm and that the distortion level is < 5%
at Receiver. (vol = 2)
IC1, C12, C96, 
C97, R215, 
R27, RA4, 
C11, C13, 
R28, D3, D4, 
MIC, R73, R74
(P) 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 40 mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -40 dBm/1KHz to Line I/F and measure Receiving level at SP+ and SP-.
5. Confirm that the level is -26 dBm ± 2 dBm and that the distortion level is < 5%.
(vol = 3)
IC1, C12, C73, 
D13, D14, 
R73, R74, 
MIC, C11, 
C13, RA4, 
R27, R28, 
C96, C97, 
R215, C72
(Q) Charge Pump 3.0V Sup-
ply Confirmation
CP3.0V
1. Confirm that the voltage between testpoint CP3.0V and GND is 3.0V -0.1/
+0.3V.
C49, C52~C54
(R) Charge Pump 4.0V Sup-
ply Confirmation
CP4.0V
1. Confirm that the voltage between testpoint CP4.0V and GND is 4.0V -0.2V.
C50, C51, C55
Items
Check 
Point
Procedure
Check or 
Replace Parts
42
KX-TG6511CAT/KX-TG6511CAM/KX-TG6512CAT/KX-TG6512CAM/KX-TGA650RUT/KX-TGA650RUM/KX-TGA651RUT/KX-TGA651RUM
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
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.
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.
Setting Method
• Change the handset address of EEPROM (0129) from 00 to 01 by Engineering Mode.
43
KX-TG6511CAT/KX-TG6511CAM/KX-TG6512CAT/KX-TG6512CAM/KX-TGA650RUT/KX-TGA650RUM/KX-TGA651RUT/KX-TGA651RUM
10 Disassembly and Assembly Instructions
10.1. Disassembly Instructions
10.1.1. Base Unit
44
KX-TG6511CAT/KX-TG6511CAM/KX-TG6512CAT/KX-TG6512CAM/KX-TGA650RUT/KX-TGA650RUM/KX-TGA651RUT/KX-TGA651RUM
10.1.2. Handset
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