Sony SPP-SS964, Руководство по обслуживанию

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BASE MAIN BOARD IC751 C7311-11 (ASIC)
Pin No. Pin Name I/O Function
1 KEY-OUT5 O
Key output terminal Not used (open)
2 D0 I
Selection input of the model (fixed at “L” in this set)
3, 4 D1, D2 O
Not used (open)
5 D3 I
Not used (open)
6 to 9 D4 to D7 O
Not used (open)
10 to 15
KEY-IN0 to
KEY-IN5
I Key return signal input from the key matrix “L” input when key pressing
16 VSSC —
Ground terminal (for core)
17 VDDC —
Power supply terminal (+5V) (for core)
18 VDDP —
Power supply terminal (+5V) (for pad)
19 VSSC —
Ground terminal (for core)
20
INTC & HOLD
CTRL
O
Intercom and hold control signal output terminal
“H”: intercom and hold status, Others: “L”
21
RING MODE
ON/OFF
I RINGER switch (SW952) input terminal “L”: ringer off, “H”: ringer on
22 KEY-OUT3 O Key send signal output to the key matrix
23 KEY-OUT4 O Key output terminal Not used (open)
24 CDCDATAI I Transmit data input from the CODEC (IC701)
25 CDCDATAO O Receive data output to the CODEC (IC701)
26 CDCMCLK O Master clock signal output to the CODEC (IC701)
27 RESETO O Reset signal output to the CODEC (IC701) “L”: reset
28 CDCICLK O Interface clock signal output to the CODEC (IC701)
29 VDDP — Power supply terminal (+5V) (for pad)
30 VSSP — Ground terminal (for pad)
31 KEY-OUT2 O Key send signal output to the key matrix
32 CDCFRAME O Frame output to the CODEC (IC701)
33 ARTI I ART input terminal Not used (fixed at “H”)
34 ARTO O ART output to the handset unit
35, 36
KEY-OUT1,
KEY-OUT0
O
Key send signal output to the key matrix
37 OFFHOOK O Hook on/off control signal output terminal “L”: on hook, “H”: off hook
38 VDDP — Power supply terminal (+5V) (for pad)
39 LCDCS O Chip select signal output for the liquid crystal display Not used (open)
40 VDDC — Power supply terminal (+5V) (for core)
41 VSSC — Ground terminal (for core)
42 TEST I Setting terminal for the test mode “L”: test mode Normally: fixed at “H”
43 LNAATN O LNA gain selection signal output to the RF unit “H”: low gain
44 RXEN O RX system enable signal output to the RF unit “H”: enable
45 VDDA — Power supply terminal (+5V) (for analog)
46 VSSA — Ground terminal (for analog)
47 VDDA — Power supply terminal (+5V) (for analog)
48 VSSA — Ground terminal (for analog)
49 TXDATA O Transmit data output to the RF unit
50 VRP O Analog reference voltage output terminal
51 RXIP I Receive data (I positive) input from the RF unit
52 RXIN I
Receive data (I negative) input from the RF unit
53 RXQP I
Receive data (Q positive) input from the RF unit