Handset Section - Sony SPP-874 Service Manual

E model
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HANDSET SECTION

MANUAL TEST MODE
Set the Test Mode:
1. Enter the test mode by pressing
TALK keys when in idle condition.
(Key operation
n 1 n TALK )
2. The RINGER will ring for 1 sec when the test mode is started.
3. Measurement mode of consumption current. (ch=01 state)
4. Use key input to carry out the various settings.
5. Use port inputs to set output from LED terminals.
Release the Test Mode:
1. Press the OFF key.
2. Turn off the power. (Remove the battery and replace them.)
– hand key board (side B) –
key while pressing 1 and
TP314
TP316
IC401
– 14 –
MACHINE TEST MODE
Set the Test Mode:
1. When power on reset is applied while a "L" (low) is input the
TEST I/O (TP316) terminal (IC401 #§ pin), the RING (Level
H, 1 sec) sounds.
2. Checking the CH No. displayed on the LCD, up or down the
JOG dial and select the No. It can be set by pushing the JOG
dial. ("?" appears at the suffix No. is determined.)
3. Set the TX setting to TX OFF.
4. The channel is set by voice not by data.
5. Use port inputs to set output from LED terminals.
Release the Test Mode:
1. Press the OFF key.
2. Remove the short plug and turn on the power.
TP209
TP207
TP206
TP204
TP203

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