8.3.
X801 (Base Unit), X201 (Handset) Check
Equipment: Frequency counter
Check Point for measurement: BCK
Checking tolerance: 13.824MHz ± 100Hz (Base Unit)/13.824MHz ± 100Hz (Handset)
8.3.1.
Check and Adjust X801 (Base Unit) Frequency
1. Set up Base Unit in TEST mode.
2. Press following keys in order to Adjust Crystal mode. [LOCATOR], [LOCATOR], [LOCATOR], [Button 1], [Button 2], [Button 2],
[Button 1]. Check BCK frequency.
3. Ifthe BCK frequency is out ofthe checking tolerance (± 100Hz), adjust to Adjustment tolerance (± 30Hz) by pressing [Button
1] or [Button 2] key.
Adjustment Tolerance: 13.824MHz ± 30Hz
4. Press [LOCATOR] key to write the new frequency factor in Memory.
5. Turn the power off. Then this value is available.
Cross Reference:
Adjustment Mode
(P.32)
8.3.2.
Check and Adjust X201 (Handset) Frequency
1. Set DC power supply to 3.9V.
2. Set up Handset in TEST mode (Adjustment flow).
3. Press [1] key to Adjust Crystal mode. (“Clock Adj.” is displayed on LCD). Check BCK frequency.
4. Ifthe BCK frequency is out ofthe checking tolerance (± 100Hz), adjust to Adjustment tolerance (± 30Hz) by pressing [
] or [
]
key.
Adjustment Tolerance: 13.824MHz ± 30Hz
5. Press [TALK] key to write the new frequency factor in EEPROM.
6. Turn the power off. Then this value is available.
Cross Reference:
Adjustment Mode
(P.36)
8.4.
Adjust Battery Low Detector Voltage (Handset)
After Handset´s DSP (IC201) or EEPROM (IC202) replacement, Re-writing Battery Low voltage to EEPROM is required.
With following Handset Adjustment Flow, adjust DC power supply and DC voltmeter by the procedure below.
1. Set DC power supply to 3.9V.
2. Set up Handset in TEST mode (Adjustment flow).
3. Press [1] key and [OFF] key to Adjust Batt Low mode. (“Bat Adj.” is displayed on LCD)
4. Change the voltage ofthe DC power supply to 3.50V accurately. Check the voltage at P.C. board pads because some voltage
drops occur due to the usage oflong or thin cables.
5. Press [TALK] key to write voltage value in EEPROM.
6. Turn the power off. Then this value is available.
Note:
Refer to
Handset Reference Drawing
(P.40) for connection of DC power supply and voltmeter.
Cross Reference:
Adjustment Mode
(P.36)
37
KX-TG2480BXS / KX-TGA248BXS
Summary of Contents for KX-TG2480BXS
Page 7: ...4 1 5 Battery Replacement 4 1 6 Battery Performance 7 KX TG2480BXS KX TGA248BXS ...
Page 8: ...4 2 Location of Controls 4 2 1 Base unit 4 2 2 Handset 8 KX TG2480BXS KX TGA248BXS ...
Page 10: ...4 4 Settings 4 4 1 Connections 4 4 1 1 Connecting the AC Adaptor 10 KX TG2480BXS KX TGA248BXS ...
Page 11: ...4 4 1 2 Connecting the Telephone Line Cord 11 KX TG2480BXS KX TGA248BXS ...
Page 12: ...12 KX TG2480BXS KX TGA248BXS ...
Page 13: ...4 4 2 Guide to Handset Programming 13 KX TG2480BXS KX TGA248BXS ...
Page 15: ...4 4 4 Direct Commands 15 KX TG2480BXS KX TGA248BXS ...
Page 17: ...17 KX TG2480BXS KX TGA248BXS ...
Page 18: ...18 KX TG2480BXS KX TGA248BXS ...
Page 21: ...6 ASSEMBLY INSTRUCTIONS 6 1 Fix the LCD to P C Board Handset 21 KX TG2480BXS KX TGA248BXS ...
Page 27: ...7 3 4 RF DSP interface signal wave form 27 KX TG2480BXS KX TGA248BXS ...
Page 66: ...17 SIGNAL ROUTE Each signal route is as follows 66 KX TG2480BXS KX TGA248BXS ...
Page 69: ...20 EXPLANATION OF IC TERMINALS RF UNIT 20 1 IC901 69 KX TG2480BXS KX TGA248BXS ...
Page 72: ...22 CABINET AND ELECTRICAL PARTS BASE UNIT 72 KX TG2480BXS KX TGA248BXS ...
Page 73: ...23 CABINET AND ELECTRICAL PARTS HANDSET 73 KX TG2480BXS KX TGA248BXS ...
Page 74: ...24 ACCESSORIES AND PACKING MATERIALS 74 KX TG2480BXS KX TGA248BXS ...
Page 82: ...Memo 82 KX TG2480BXS KX TGA248BXS ...
Page 94: ...94 KX TG2480BXS KX TGA248BXS H M N KXTG2480BXS KXTGA248BXS ...