– 23 –
2. Adjustment Equipment and Connection
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 [0 ] key to turn on the TX power.
4. Check the frequency
±
1 kHz.
5. If the resuit is with in
±
1 kHz, then no alignment required. Oth-
erwise, refer to next item.
4. Adjustment the 18.4 MHz Frequency Error.
Procedure:
1. Remove C1031 from the HAND MAIN board.
2. Solder on 20 PF variable capacitor C1057 (1-141-546-12) on
the HAND MAIN board. (in parallel of C1029).
3. Enter the test mode.
4. Connect the frequency counter to the test point J1 on the RF
unit.
5. Press the [0 ] key to turn on the TX power.
6. Adjust C1057 on the HAND MAIN board for 0 Hz
±
1 kHz.
HANDSET
1. Test Mode
[Entering the Test Mode]
1. Press the
[PGM ]
key, then displayed “DIRECTORY AREA
RINGER” on the LCD.
2. Press the
[*]
,
[*]
,
[8]
,
[3]
,
[7]
,
[8]
keys, then displayed on the
LCD as below.
LCD display
[Releasing the Test Mode]
Press the
[OFF]
key.
[Key Functions]
[7]
key : LCD test
LCD display
[0]
key : Toggle TX power.
LCD display
[#]
key : Increment RF channel.
[#]
key : Decrease RF channel.
LCD display
channel number
[9]
key : Show software revision
LCD display
No.
[2]
key : Erase all area codes
**Test Mode**
TxPwr:_ Ch:05
OLD
NEW
E
**Test Mode**
OLD
NEW
E
**Test Mode**
OLD
NEW
E
**Test Mode**
SW Rev:_HCXI001
OLD
NEW
E
frequency counter
– HAND MAIN BOARD
(Component Side) –
J1
RF UNIT
C1057
C1031
C1029
U1001
Summary of Contents for SPP-A985 - Cordless Telephone With Answering System
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