Test Mode; Base Unit - Sony SPP-A700 Service Manual

3-1. BASE UNIT

[Start-up method]
1. Set the [DIAL MODE]
switch to the P (PULSE) side.
2. Reset the POWER ON (connect the AC adapter plug) while
pressing [TIME] , [REPEA T], [PLA Y/ST OP] keys.
3. Set the [DIAL MODE]
switch to the T (TONE) side. After that
back to the P (PULSE) side.
4. Using the signal in step 3 as a trigger, the base unit reads chan-
nel information with the key matrix, and starts the Test mode.
5. After the Test mode started, the base unit generates a comple-
tion tone, then based on the read channel information, it sets
the channel and goes in Test Mode Idle status under the follow-
ing conditions:
• Relay ON (receiving status)
• 7-SEG LED "c" display
• RSSI gain HIGH
* For the DB0~DB4 logic of key matrix and channel setting, refer
to the frequency table.
[Operation in Test Mode Idle status]
In the Test Mode Idle status, the base unit always monitors the key
inputs, and generates a key touch tone and goes in the following
modes according to each key pressed.
• [GREETING] key ................. Radio System Test
• [TIME] key .......................... Audio System Test
• [SET/REC] key .................... Key • LED • Terminating Test
• [ANSWER ON/OFF] key ...... Switch • LED Test
• [REPEAT] key ..................... Dial • Auto Hold Reset • Charge
• [PLAY/STOP] key ................ C-ID Test
• [ERASE] key ....................... Test Mode Quit
The base unit quits Test mode and goes in Idle status.
BASE UNIT FREQUENCY TABLE
5 4 3
Pin No.
Channel DB4 DB3 DB2 DB1 DB0
1CH 0 0 0
2CH 0 0 0
3CH 0 0 0
4CH 0 0 0
5CH 0 0 1
6CH 0 0 1
7CH 0 0 1
8CH 0 0 1
9CH 0 1 0
10CH 0 1 0
11CH 0 1 0
12CH 0 1 0
13CH 0 1 1
14CH 0 1 1
15CH 0 1 1
16CH 0 1 1
17CH 1 0 0
18CH 1 0 0
19CH 1 0 0
20CH 1 0 0
21CH 1 0 1
22CH 1 0 1
23CH 1 0 1
24CH 1 0 1
25CH 1 1 0
T1CH 1 1 0
T2CH 1 1 0
T3CH 1 1 0
T4CH 1 1 1
SECTION 3

TEST MODE

Test
2 1
TX FREQUENCY RX FREQUENCY
(MHz) (MHz)
0 0 43.720 48.760
0 1 43.740 48.840
1 0 43.820 48.860
1 1 43.840 48.920
0 0 43.920 49.020
0 1 43.960 49.080
1 0 44.120 49.100
1 1 44.160 49.160
0 0 44.180 49.200
0 1 44.200 49.240
1 0 44.320 49.280
1 1 44.360 49.360
0 0 44.400 49.400
0 1 44.460 49.460
1 0 44.480 49.500
1 1 46.610 49.670
0 0 46.630 49.845
0 1 46.670 49.860
1 0 46.710 49.770
1 1 46.730 49.875
0 0 46.770 49.830
0 1 46.830 49.890
1 0 46.870 49.930
1 1 46.930 49.990
0 0 46.970 49.970
0 1 43.780 48.800
1 0 43.890 48.970
1 1 46.800 49.910
0 0 46.900 49.950
[Radio System Test]
• This mode is activated when [GREETING] key is pressed in the
Test Mode Idle status.
1. Operation in Radio System Test mode
• In the Radio System Test mode, the RSSI is always moni-
tored at IC601 #• pin (SIG-IN), and if RSSI is present (SIG-
IN ="Low"), the ANSWER LED turns on, or if RSSI is not
present(SIG-IN = "High"), the LED turns off.
• Current channel number is displayed on 7-SEG LED.
2. Operation by key input
• In the Radio System Test mode, the base unit always moni-
tors the key inputs, and generates a key touch tone and goes
in the following statuses according to each key pressed.
[PAGE] key
• Radio channel is incremented by one.
• TX ON/OFF and RX ON/OFF are same as the condition before
the channel was incremented by one.
• Channel number and 7-SEG LED display vary as follows:
1CH →2CH → . . . . → 19CH → 20CH
"1" "2"
↑
T4CH ← . . . . ← T1CH ← 25CH ← . . . . ← 21CH
"9"
[ANSWER ON/OFF] key
• Transmit mode is turned on.
• Even in the condition other than transmit mode, key input be-
comes active to turn on the transmit mode.
[GREETING] key
• Receive mode is turned on.
• Even in the condition other than receiver mode, key input be-
comes active to turn on the receive mode.
[TIME] key
• Transmit & receive mode is turned off.
• Even in the condition other than transmit & receive mode, key
input becomes active to turn off the transmit & receive mode.
[SET/REC] key
• RSSI gain is set to "Low".
(Once the gain is set to "Low", low gain is kept during the Test
mode.)
[MEMO] key
• Message transmission test
• ID=AAAH and DATA=AAAH in length of frame sync + normal
message frame length are transmitted continuously until [MEMO]
key is pressed again. When [MEMO] key is pressed, a message
transmission is stopped, and TX ON/OFF and RX ON/OFF are
returned to the condition before the message transmission.
[ERASE] key
• Test Mode Idle status is resumed.
• The Radio System Test mode quits, and the Test Mode Idle sta-
tus is resumed.
– 23 –
"19" "0"
↓
"6" "5" "1"