Handset - Sony SPP-935 Service Manual

3-2. HANDSET

[Start-up]
1. When powered up, press and hold
time for 1 ~ 2 seconds.
[*] [1]
2. Then press and at the same time.
[#]
3. Release and press again
testmode, and happy tone is emitted.
Default setting:
• Channel No. = 6
• PLL gain mode lowest
• TX attenuater off
• TX power on (\TX_ENABLE = 0)
• RX power on (\RX_ENABLE = 0)
• TX audio unmute (\TX_MUTE = 1)
• RX audio unmute (\RX_MUTE = 1)
[Key functions]
The handset always monitors the key inputs, and generates a key
touch tone and goes in the following modes according to each key
pressed.
[CHANNEL]
key
• Increment channel number of every press the key.
• Refresh PLL RX, TX counters.
[SPEED DIAL]
key
• Toggle TX power.
• Refresh PLL TX counter.
[REDIAL/PAUSE]
key
• Toggle RX power.
• Refresh PLL REF, RX, TX counters.
[PGM]
key
• Toggle TX attenuater.
• Refresh PLL status register.
[TALK/FLASH]
key
• Change PLL gain mode.
• Increment PLL gain of every press the key. (All 4 steps)
[HOLD]
key
• Toggle TX mute.
[INTERCOM]
key
• Toggle RX mute.
[OFF]
key
• Quit test mode.
• Emits sad tone.
[LED indication]
• IN_USE : ON = TX power on
(TALK) OFF = TX power off
• BATT LOW : ON = RX power on
OFF = RX power off
• INTERCOM: ON = TX attn off
OFF = TX attn on
[#] [3]
and at the same
[3]
and at the same time to enter
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