10
4-1. BASE UNITTEST MODE A
Manual SystemTest Mode
[Start-up]
1. Set the DIAL MODE switch to P (PULSE), and turn on the
power while pressing the HANDSET LOCATOR key.
2. Change the DIAL MODE switch from P (PULSE) to T
(TONE) bP(PULSE), and release the HANDSETLOCATOR
key to start up.
3. After starting up Test Mode A, perform dial test.
4. The TEST MODEA state will be set after the dial test.
5. In test mode idlingA, pressing the HANDSETLOCATOR key
with the P (PULSE)/T (TONE) switch set to P (PULSE) state
switches to BASE UNIT TEST MODE A-1.
4-1-1. BASE UNITTest Mode A-1
1. In test mode idling A and the P (PULSE)/ T (TONE) switch set
to the P (PULSE) state, pressing the HANDSET LOCATOR
key changes the mode as shown below.
2. Setting the P (PULSE)/ T (TONE) switch from P (PULSE) to T
(TONE) in the BASE UNIT test mode A-1 in any time also en-
ables the mode to be changed to the BASE UNIT test mode
idling A.
• This mode is intended for checking that the IC501 line is operat-
ing properly.Add the LINEIN signal and check that the signal is
output to the SPEAKER OUT.
HANDSET
LOCATIOR
button
pressing
count 1
2
3
4
CODEC Forward Loopback (L1)
(Line: Talking state)
(CODEC LINE IN nSPEAKER OUT)
ADPCM Forward Loopback (L2)
(Line: Talking state)
(CODEC LINEIN nADPCM
nCODEC SPERKER OUT)
Does not function
Returns to BASE UNIT TEST MODE • IDLINGA
Test mode
Note: If the LEDs are lit due to the idling state test, clear all the
LEDs, and return to the idling state.
[Base Set AUDIO Input/Output Level test
[CODEC Forward Loop Back (LI) Mode]]
[DialTest]
Afterstarting BASEUNITTESTModeA, closethe circuitfor about
500 msec after start, and dial PAUSE , 0 (DP), wait 2 seconds, 1
(Tone), 4 (Tone), 8 (Tone), # (Tone) in this order.
[Ring DetectTest]
1. Rings theNormalRinger synchronizedwith anexternal callcom-
ing in, and blinks the IC501 Pin !™ (NewCallLED/VMWI LED)
at the same time.
[Charge Detection and ART0 OutputTest]
1. Detectsthat the charge detection terminal IC501Pin @∞ (-PARKP)
has turned from H to L, and outputs a square waveform signal
(2.4 kbps) from the ART0 terminal.
2. Clears the EEPROM contents at the same time.
[Charge ControlTest]
1. When the IC501 Pin !• input (BATT_CHK) changes from
L, H, to L during charge detection, the IC501 Pin !¶ output
(CHRG_CTL) will output L, H, LH, L, to H only once.
[Branch DetectionTest]
When the shared phone is detected to be off the hook and the Branch
detection terminal IC501 Pin (¢ (EXT_DET) detects L, theVMWI
LED is lit. When off-hook is detected and the Branch detection
terminal IC501 Pin (¢ (EXT_DET) detects H, the VMWI LED is
turned off.
Audio analyzer Level meter
Base main mount
• Short:TP911 GND
TP102
TP912
GND
TP911
TP101
osc out
Setting:
Setting: OSC=–13.0 dBV (Open terminal)
MOD=1 kHz
DIAL MODE switch
P (PULSE) side
T (TONE) side
Idle status
Test Mode Idle A-1
Test Mode Idle A-2
SECTION 4
TEST MODE