Troubleshooting By Symptom (Base Unit And Charger Unit); Troubleshooting By Symptom (Handset) - Panasonic KX-TG1034B Service Manual

9.2.

Troubleshooting by Symptom (Base Unit and Charger Unit)

9.2.1. Check Point (Base Unit)
Please follow the items below after repairing.
Note:
After the measuring, suck up the solder of TP.
*: PC Setting (P.56) is required beforehand.
The connections of simulator equipment are as shown in Adjustment Standard (Base Unit) (P.58).
Items
(A) 3.3 V Supply Confirma-
tion
(B) 2.5 V Supply Confirma-
tion
(C) 1.8 V Supply Confirma-
tion
(D)* BBIC Clock Adjustment
9.3.

Troubleshooting by Symptom (Handset)

9.3.1. Check Point (Handset)
Please follow the items below after repairing.
Note:
After the measuring, suck up the solder of TP.
*: Batch file Settings (P.62) is required beforehand.
The connections of adjustment equipment are as shown in Adjustment Standard (Handset) (P.63).
Items
(A)* 1.8 V Supply Adjustment
(B) DC/DC Supply Confir-
mation
(C) 2.5 V Supply Confirma-
tion
(D) Charge Control Check &
Charge Current Monitor
Check
(E) Battery Low Confirma-
tion
(F)* BBIC Clock Adjustment
Check
Point
VDD3 1. Confirm that the voltage between test point VDD3 and GND is 3.3 V ± 0.2 V.
VDD2 1. Confirm that the voltage between test point VDD2 and GND is 2.5 V ± 0.2 V.
VDD1 1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.1 V.
CLK 1. Input Command "rdeeprom 00 01 01", then you can confirm the current value.
2. Adjust the frequency of CLK executing the command "setfreq xx (where xx is
the value)" so that the reading of the frequency counter is 10.368000 MHz ±
10 Hz.
Check
Point
1.8 V 1. Confirm that the voltage between test point 1.8 V and GND is 1.8 V ± 0.02 V.
2. Execute the command "bandgap", then check the current value.
3. Adjust the 1.8V voltage of VDD1 executing command "bandgap XX"(XX is the
value).
3.3 V 1. Confirm that the voltage between test point 3.3 V and GND is 3.3 V ± 0.3 V
(Backlight is ON).
2.5 V 1. Confirm that the voltage between test point 2.5 V and GND is 2.5 V ± 0.1 V.
- 1. Apply 3.5 V between CHG(+) and CHG(-) with DC power supply and set cur-
rent limit to 250 mA.
2. Confirm that the current limit LED of DC power supply is ON/OFF.
3. Decrease current limit of DC power supply to 100mA.
4. Confirm that the current limit LED of DC power supply is stable. (Current limiter
is ON.)
(If charge control cannot be confirmed by this procedure, please use battery to hand-
set power supply and try again.)
- 1. Apply 2.40 V between BATT(+) and BATT(-).
2. Confirm that there is no flashing of Battery Icon.
3. Apply 2.25 V ± 0.08 V between BATT(+) and BATT(-).
4. Confirm that there is flashing of Battery Icon.
CLK 1. Apply 2.6 V between BATT(+) and BATT(-) with DC power.
2. Execute the command "conttx".
3. Input Command "rdeeprom 00 01 01", then you can confirm the current value.
4. Adjust the frequency of CLK executing the command "setfreq xx (where xx is
the value)" so that the reading of the frequency counter is 10.368000 MHz ± 10
Hz.
Note:
CLK is displayed only for a few seconds when executing the command "conttx"
after battery is inserted.
KX-TG1034B/KX-TG1035S/KX-TGA101B/KX-TGA101S
Procedure
Procedure
45
Check or
Replace Parts
IC1, C30, C32,
R38, R39, C36,
C37
Q9, C70, C71
Q8, R72, D12,
C68
IC10, C111,
C112, X1, R73,
C62, C63
Check or
Replace Parts
IC1, Q2, C10
IC1, F1, C1,
C2, C3, R1,
Q1, D1, L1
IC1, Q3, C5
IC1, Q4, Q5,
Q9, D6, D7,
D8, L4,
L5, R5, R6,
R7, R8, F1
IC1, F1, C1
C3, R12
IC1, X1, C6,
C7, R19,
IC4, C57