Adjustments (Handset); Adjustment (Handset) - Panasonic KX-TCD510RUM Service Manual

15 ADJUSTMENTS (HANDSET)

If your unit have below symptoms, adjust or confirm each item using remedy column from the table.
The movement of Battery Low indicator is wrong.
The handset does not respond to a call from base unit.
The handset does not transmit or the transmit frequency is off.
The transmit frequency is off.
The transmit power output is low, and the operating distance between base unit and
handset is less than normal.
The reception sensitivity of base unit is low with noise.
Does not link between base unit and handset.
The Audio level is high or low.
The SP-Phone level is high or low.
The Headset level is high or low.
* : Refer to Adjustment (Handset) (P.59)

15.1. Adjustment (Handset)

Please follow the items below when BBIC or EEPROM is replaced.
Items Adjustment Point
(A)* 1.8V Supply
Confirmation
(B) 4.0V Supply
Confirmation
(C) 2.7V Supply
Confirmation
(D)* BBIC Confirmation
(E) Charge Control
Check & Charge
Current Monitor
Confirmation
(F)* Charge Detection
(OFF) Confirmation
(G)* Battery Monitor
Confirmation &
Adjustment
(H) Battery low
Confirmation
Symptom
TP12 1. Confirm that the voltage between test point "TP12" and GND is 1.8V ± 0.02V.
2. Adjust the 1.8V voltage of TP12 executing command "bandgap XX" (XX is the
value).
TP10 1. Confirm that the voltage between "TP10" and GND is 3.85V ± 0.2V.
TP11 1. Confirm that the voltage between "TP11" and GND is 2.7V ± 0.1V.
- 1. BBIC Confirmation (Execute the command "getchk").
2. Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
- 1. Apply 6V between J3(+) and J4(-) with current limit of PSU to 200mA.
2. Confirm that the charge current is ON/OFF.
3. SW to decrease current limit of PSU to 100mA.
4. Confirm that the charge current is stable.
- 1. Stop supplying 6V to J3(+) and J4(-).
2. Execute the command "charge".
3. Confirm that the returned value is 0x01 (hex).
- 1. Apply 2.3V ± 0.005V between BATT(+) and BATT(-).
2. Execute the command "Backloff", then "readbatt".
3. Confirm: 29
(If the returned value is within the range, no need to do step 4 and 5.)
4. If the reading is out of range in step 3 above, adjust the battery monitor
excuting command "wreeprom 00 01 01 XX". (XX is the reading at step 3.)
Then excute command "wreeprom 00 36 01 YY". (YY= XX - 0E)
- 1. Apply 2.40V between BATT(+) and BATT(-).
2. Confirm that there is no flashing of Battery Icon.
3. Apply 2.20V between BATT(+) and BATT(-).
4. Confirm that there is flashing of Battery Icon.
KX-TCD510RUM / KX-TCD510RUT / KX-TCD510RUV / KX-TCD512RUM / KX-TCD512RUT / KX-TCD512RUV
Make adjustments in item (A)~(D), (G), (H).
Make adjustments in item (A)~(D), (I)~(P).
Make adjustments in item (A)~(D), (I)~(L), (M), (O).
Make adjustments in item (A)~(D), (I)~(L), (M), (O).
Make confirmation in item (J), (N).
Make confirmation in item (N).
Make adjustments in item (A)~(D), (I)~(P).
Make confirmation in item (R).
Make confirmation in item (S).
Make confirmation in item (T).
Procedure
returned value 36 (Hex)
59
Remedy*
Check or
Replace Parts
IC1, Q2, C40,
R4
IC1, F1, C1,
C2, C3, C57,
C74,
R1, R2, R3,
Q1, D1, L1,
R57
IC1, Q3, C4,
C5, R9, R10,
R11
IC1, X1, C7
IC1, Q4, Q5,
Q9,
D6, D7, L4,
L5,
C73, C74, R5,
R6, R7, R72,
F1
IC1, Q4, Q5,
Q9,
D6, D7, L4,
L5,
C73, C74, R5,
R6, R7, R72,
F1
IC1,F1,C74,C2
C3,R81,R24,
R73,C9
IC1, F1, C74,
C2,
C3, R81, R24,
R73, C9