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BASE UNIT
1. Test Mode
[Entering the Test Mode]
While pressing the [INTERCOM ] key, turn the power ON, then
change over the [DIAL MODE ] switch. When enter the test mode,
light up the [LINE ] and [CHARGE ] LEDs.
[Releasing the Test Mode]
Press the [FLASH ] key or turn the power OFF.
[Key Functions]
[REDIAL/PAUSE ] key : Toggle TX power.
[VOL +] key: Increment channel.
[VOL -] key : Decrement channel.
[0] key : Clear all speed dial locations.
[SPEAKERPHONES] key : Toggle apeaker phone ON or OFF.
2. Adjustment Equipment and Connection
frequency
counter
– RF UNIT (BASE) –
J1
– BASE MAIN BOARD –
(SIDE A)
U3003
SECTION 3
ELECTRICAL ADJUSTMENTS
– BASE MAIN BOARD –
(SIDE B)
C3012
C3002
3. Check the 18.4 MHz Frequency Error
Procedure:
1. Enter the Test Mode.
2. Connect the frequency counter to the test point J1 on the RF
unit.
3. Press the [REDIAL/PAUSE ] key to turn on the TX power.
4. Check the frequency ± 1 kHz.
5. If the result is within ± 1 kHz then no alignment required.
Otherwise, refer to next item.
4. Adjustment the 18.4 MHz Frequency Error
Procedure:
1. Remove C3012 from the BASE MAIN board.
2. Solder on 20 PF variable trimmer capacitor C3002 (1-141-546-
12) on the BASE MAIN board.
3. Enter the test mode.
4. Connect the frequency counter to the test point J1 on the RF
unit.
5. Press the [REDIAL/PAUSE ] key to turn on the TX power.
6. Adjust C3002 on the BASE MAIN board for 0 Hz ± 1kHz.
– 21 –
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