Sony SPP-SS964 Service Manual page 37

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• BASE MAIN BOARD IC751 C7311-11 (ASIC)
Pin No. Pin Name
1 KEY-OUT5
2 D0
3, 4 D1, D2
5 D3
6 to 9 D4 to D7
KEY-IN0 to
10 to 15
KEY-IN5
16 VSSC
17 VDDC
18 VDDP
19 VSSC
INTC & HOLD
20
CTRL
RING MODE
21
ON/OFF
22 KEY-OUT3
23
KEY-OUT4
24 CDCDATAI
25 CDCDATAO
26 CDCMCLK
27 RESETO
TE
L 13942296513
28 CDCICLK
29 VDDP
30 VSSP
31 KEY-OUT2
32 CDCFRAME
33 ARTI
34 ARTO
KEY-OUT1,
35, 36
KEY-OUT0
37 OFFHOOK
38 VDDP
39 LCDCS
40 VDDC
41 VSSC
42 TEST
43 LNAATN
44 RXEN
45 VDDA
46 VSSA
47 VDDA
48 VSSA
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49 TXDATA
50 VRP
.
51 RXIP
52 RXIN
53 RXQP
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I/O
O Key output terminal Not used (open)
I
Selection input of the model (fixed at "L" in this set)
O
Not used (open)
I
Not used (open)
O Not used (open)
I
Key return signal input from the key matrix "L" input when key pressing
—
Ground terminal (for core)
—
Power supply terminal (+5V) (for core)
—
Power supply terminal (+5V) (for pad)
— Ground terminal (for core)
Intercom and hold control signal output terminal
O
"H": intercom and hold status, Others: "L"
I
RINGER switch (SW952) input terminal "L": ringer off, "H": ringer on
O Key send signal output to the key matrix
O
Key output terminal Not used (open)
I
Transmit data input from the CODEC (IC701)
O
Receive data output to the CODEC (IC701)
O Master clock signal output to the CODEC (IC701)
O
Reset signal output to the CODEC (IC701) "L": reset
O
Interface clock signal output to the CODEC (IC701)
—
Power supply terminal (+5V) (for pad)
— Ground terminal (for pad)
O
Key send signal output to the key matrix
O
Frame output to the CODEC (IC701)
I
ART input terminal Not used (fixed at "H")
O
ART output to the handset unit
O
Key send signal output to the key matrix
O Hook on/off control signal output terminal "L": on hook, "H": off hook
—
Power supply terminal (+5V) (for pad)
O
Chip select signal output for the liquid crystal display Not used (open)
—
Power supply terminal (+5V) (for core)
— Ground terminal (for core)
I
Setting terminal for the test mode "L": test mode Normally: fixed at "H"
O
LNA gain selection signal output to the RF unit "H": low gain
O
RX system enable signal output to the RF unit "H": enable
— Power supply terminal (+5V) (for analog)
—
Ground terminal (for analog)
—
Power supply terminal (+5V) (for analog)
—
Ground terminal (for analog)
O Transmit data output to the RF unit
x ao
y
O
Analog reference voltage output terminal
i
I
Receive data (I positive) input from the RF unit
I
Receive data (I negative) input from the RF unit
I
Receive data (Q positive) input from the RF unit
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8
Function
Q Q
3 6 7 1 3
u163
.
– 50 –
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9