Sony SPP-A941 - Cordless Telephone With Answering System, Руководство по обслуживанию

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BASE I-TAD BOARD U1 PCD6002-C (TAD)
Pin No. Pin Name I/O Description
1 PSEN O Not used (open)
2 EAN I Not used (fixed at “L”)
3 VPP — Not used (open)
4 7SEG D1 O LED drive signal output of the 7 Segments LED (U1) “L”: LED on
5 7SEG D2 O LED drive signal output of the 7 Segments LED (U1) “L”: LED on
6 LED SEL O B+ switch (for LEDs) (Q10) control signal output “L”: B+ switch on
7 RESERVED O
Not used
8 RESET O Reset signal output to the EEPROM (U3) “H”: reset
9 L LATCH O
Serial data latch pulse output to the 7 segments LED drive (U10)
10 L CLK O
Serial data transfer clock signal output to the 7 segments LED drive (U10)
11 L DATA O Serial data output to the 7 segments LED drive (U10)
12 VDD3V2 —
Power supply terminal (+3V) (digital system)
13 VSS3V1 —
Ground terminal
14 to 18 ROW0 to ROW4 O
Key send signal output to the key matrix
19 ROW5 O Key send signal output to the key matrix Not used
20 HOOK SW O
Hook on/off control signal output terminal “L”: off hook, “H”: on hook
21 NINT I/O Not used
22 VSS3V3 — Ground terminal
23 SPK+ O Analog audio signal (+) output to the speaker (SP1)
24 SPK– O Analog audio signal (–) output terminal Not used (open)
25 MIC+ I Analog audio signal (+) input from the microphone (MIC1)
26 MIC– I Analog audio signal (–) input from the microphone (MIC1)
27 VMIC O Reference voltage output terminal (+2V)
28 VSSA — Ground terminal
29 VBGP O Band gap voltage output terminal (+1.2V) Not used
30 VMIC O Reference voltage output terminal (+2V)
31 AD0IN I Line DC input terminal
32 AD1IN I Analog input to the internal A/D converter Not used (pull up)
33 DAOUT O Analog output from the internal D/A converter Not used (open)
34 VDDA — Power supply terminal (+3V) (analog system)
35 LIFPIN I Analog audio signal input terminal Not used
36 LIFMIN2 I Analog audio signal input from the TEL line
37 LIFMIN1 I Analog audio signal input from the greeting recorder (U4)
38 LIFMOUT O Analog audio signal output terminal Not used (open)
39
LIFMOUT/DTMF
O Analog audio/DTMF signal output to the TEL line
40 VSSPLL — Ground terminal
41 XTAL2 O System clock output terminal (3.579545MHz)
42 XTAL1 I System clock input terminal (3.579545MHz)
43 VDDPLL — Power supply terminal (+3V) (system clock and PLL circuit)
44 VDD3V3 — Power supply terminal (+3V) (digital system)
45 RINGER DET I Detect signal input of the ringer coming “L”: ringer is detected
46 MOUT1/DCK I/O Not used (open)
47 CTR ACTIVE I Not used
48
S CLOCK/PARA DET
I/O Not used
49 T0 I/O Not used (open)
50 BU HOOK I Hook on/off detect signal input terminal “L”: off hook, “H”: on hook