39
KX-TG5521RUB/KX-TGA551RUB
9.2.2.
Check Point (Charger Unit)
Note:
After the measuring, suck up the solder of TP.
The connection of adjustment equipment is as shown in
Adjustment Standard (Charger Unit)
(P.52).
(
Q
)
Audio Check
-
1. Link with Handset which is connected to Line Simulator.
2. Set line voltage to 48V and line current to 50mA.
3. Input -45dBm(600
Ω
)/1kHz to MIC of Handset. Measure the Level at Line I/F
and distortion level.
4. Confirm that the level is -2.5dBm±2 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).
6. Confirm that the level is -30.5dBm±2 dBm and that the distortion level is <5%
at Receiver (150
Ω
Load).
IC7, SA1, L1,
L2, D3, Q3, Q4,
R14, R15, R16,
R17, D21, Q5,
R19, R20, C14,
C56, R117,
R116, C141, R9,
C22, C23
(
R
)
Charging Check
-
1. Connect Charge Contact 12
Ω
/2 W resistor between and charge-.
2. Measure and confirm voltage across the resistor is 3.3 V ± 0.3 V.
R55, R56, D22,
D23, D24, C623,
C624
(
S
)
TAM Operation Confir-
mation
-
1. TAM Confirmation (Execute the command "sendchar VPI").
2. Confirm the returned Value (Value is "DAS7RN 02").
IC7, IC421,
R424~R429,
C421, C422,
Q421
(
T
)
2.4V Supply Confirma-
tion VDD2
VDD2
1. Confirm that the voltage between test point VDD2 and GND is 2.5V ± 0.2V.
IC7, Q9, C617
Items
Check
Point
Procedure
Check or
Replace Parts
(
A
)
Charging Check
-
1. Connect Charge Contact 12
Ω
/2 W resistor between and charge-.
2. Measure and confirm voltage across the resistor is 3.1 V ± 0.3 V.
R1, F1
Items
Check
Point
Procedure
Check or
Replace Parts
Содержание KX-TG5521RUB
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