Read Panasonic KX-TG6621RUB / KX-TG6621RUM / KX-TG6621UAB / KX-TG6621UAM / KX-TG6621CAB / KX-TG6621CAM / KX-TG6622CAB / KX-TGA661RUB / KX-TGA661RUM Service Manual online
38
KX-TG6621RU/KX-TG6621UA/KX-TG6621CA/KX-TG6622CA/KX-TGA661RU
(N)*
Sensitivity Receiver
Confirmation
-
ANTI_TP
Follow steps 1 to 6 of (J).
7.Set DECT tester power to -90 dBm.
8.Confirm that the BER is < 1000 ppm.
8.Confirm that the BER is < 1000 ppm.
IC7,
C802~C806,
C809, C813,
C820, C822,
C823, C825,
C826, C851,
C853, C837,
C863, C864,
C809, C813,
C820, C822,
C823, C825,
C826, C851,
C853, C837,
C863, C864,
DA801, DA802,
L802~L803,
C855~C858,
R806~R807,
R106, R109,
R806~R807,
R106, R109,
Q9, C617, R71
(O)*
Timing Confirmation
-
ANTI_TP
Follow steps 1 to 6 of (J).
7.Confirm that the Timing accuracy is
• ± 5.0 ppm (When adjust the frequency of CLK in item (G)).
• ± 15 ppm (When do not adjust the frequency of CLK in item (G)).
• ± 15 ppm (When do not adjust the frequency of CLK in item (G)).
IC7,
C802~C806,
C809, C813,
C820, C822,
C823, C825,
C826, C851,
C853, C837,
C863, C864,
C809, C813,
C820, C822,
C823, C825,
C826, C851,
C853, C837,
C863, C864,
DA801, DA802,
L802~L803,
C855~C858,
R806~R807,
R106, R109,
R806~R807,
R106, R109,
Q9, C617, R71
(P)*
Power RAMP
Confirmation
-
Follow steps 1 to 6 of (J).
7.Confirm that Power RAMP is matching.
IC7,
C802~C806,
C809, C813,
C820, C822,
C823, C825,
C826, C851,
C853, C837,
C863, C864,
C809, C813,
C820, C822,
C823, C825,
C826, C851,
C853, C837,
C863, C864,
DA801, DA802,
L802~L803,
C855~C858,
R806~R807,
R106, R109,
R806~R807,
R106, R109,
Q9, C617, R71
(Q)
Audio Check
-
1. Link with Handset which is connected to Line Simulator.
2. Set line voltage to 48 V and line current to 50 mA.
3. Input -45 dBm (600
2. Set line voltage to 48 V and line current to 50 mA.
3. Input -45 dBm (600
Ω)/1 kHz to MIC of Handset. Measure the Level at Line I/F
and distortion level.
4. Confirm that the level is -2.0 dBm and that the distortion level is <5% at TEL
Line (600
Ω Load).
5. Input -20dBm(600
Ω)/1kHz to Line I/F. Measure the Level at Receiver of
Handset and distortion level (Receive volume set to second position from
minimum).
minimum).
6. Confirm that the level is -24 dBm and that the distortion level is <5% at
Receiver (34
Ω Load).
IC7, SA1, P1,
D3, Q3, Q4,
R14, R15, R16,
R17, D21, Q5,
R19, R20, C14,
C56, R117,
R116, R29, C22
(R)
Charging Check
-
1. Connect Charge Contact 12
Ω/2 W resistor between charge+ and charge-.
2. Measure and confirm voltage across the resistor is 3.9 V ± 0.4 V.
R55, R56, D22,
C623
(S)
TAM Operation
Confirmation
-
1. TAM Confirmation (Execute the command "sendchar VPI").
2. Confirm the returned Value (Value is "DCF7RN 00").
2. Confirm the returned Value (Value is "DCF7RN 00").
IC7, IC421,
R424~R429,
C421, C422,
C421, C422,
Q421
(T)
2.4V Supply
Confirmation VDD2
VDD2
1. Confirm that the voltage between test point VDD2 and GND is 2.5 V ± 0.2 V.
IC7, Q9, C617,
R71
Items
Check
Point
Procedure
Check or
Replace Parts
Click on the first or last page to see other KX-TG6621RUB / KX-TG6621RUM / KX-TG6621UAB / KX-TG6621UAM / KX-TG6621CAB / KX-TG6621CAM / KX-TG6622CAB / KX-TGA661RUB / KX-TGA661RUM service manuals if exist.