Sony SPP-M100, Service Manual

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SECTION 6
DIAGRAMS
6-1. EXPLANATION OF IC TERMINALS
IC501 SB662312A-4G69 (BASE UNIT CPU)
Pin No. Pin name I/O Description
1 PLL LDA I PLL LDA. H : Lock
2 PLL DATA O PLL serial data output terminal.
3 PLL CLK O PLL serial clock output terminal.
4 RX • DATA I RX data input terminal.
5 PLL CE O PLL serial chip enable output terminal.
6 TX • DATA O TX data input terminal.
7 CHG • DET I Charge DET terminal. L : Charge on
8 V
SS
– Ground.
9 OSC 1 I Internal oscillator (4.048MHz).
10 OSC 2 O External oscillator (4.048MHz).
11 V
DD
– Power supply (+5V).
––––
12 RES I System reset terminal.
13 PAGE I Page key detection terminal. L : Page key on
14 DIAL MODE I Dial key detection terminal. H : Tone, L : Pulse
15 –––––– – Not used.
––––––
16 HOLD I Power interruption detection. L : Hold
17 TX/RX MUTE O TR/RX mute output.
18 TEST I/O I Test mode terminal. H : Test mode
19 TEST L1/L2 I L1/L2 selection. H : L1, L : L2
20 10CH/25CH I 10CH/25CH selection. H : 10CH, L : 25CH
21 33/40% I Make selection. H : 33%, L : 40%
22 SQ I Carrier detection. H : Carrier present
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23 BATT LOW I Not used (OPEN).
24 –––––– – Not used (OPEN).
25 BEEP O Beep output terminal.
26 DP • 1 O Relay (RY451) ON/OFF control. L : LINE 1 connected
27 DTMF O DTMF output terminal.
28 DP • 2 O Relay (RY401) ON/OFF control. L : LINE 2 connected
29 –––––– – Not used (OPEN).
30 –––––– – Not used (OPEN).
31 PARA • DET2 I Automatic hold cancellation detect terminal (LINE 2). H : Hold cancellation det
32 PARA • DET1 I Automatic hold cancellation detect terminal (LINE 1). H : Hold cancellation det
33 RING • DET2 I Reception bell signal detection. L : Reception signal present
34 RING • DET1 I Reception bell signal detection. L : Reception signal present
35 LINE2 O Line 2 LED drive. L : LED lighting
36 LINE1 O Line 1 LED drive. L : LED lighting
37 DTMF2 O DTMF ON/OFF control (LINE 2). H : ON
38 DTMF1 O DTMF ON/OFF control (LINE 1). H : ON
39 CONF O CONF ON/OFF control. H : ON
40 L2 O LINE 2 ON/OFF control. H : ON
41 L1 O LINE 1 ON/OFF control. H : ON
42 –––––– – Not used (OPEN).