Sony SPP-SS964, Руководство по обслуживанию

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Pin No. Pin Name I/O Function
54 RXQN I Receive data (Q negative) input from the RF unit
55 NC — Not used (open)
56 IBIAS I Analog bias input terminal
57 AGND —
Analog ground terminal
58 POWERDOWN I
Battery voltage detection input terminal “L”: power down
59 AFC (BEEP) O
Beep tone signal output terminal
60 AGC O
Auto gain control signal output to the RF unit
61 MT-CLK O
Not used (open)
62 PARKP I
Charge detection input terminal “L”: charge on
63 VDDC —
Power supply terminal (+5V) (for core)
64 VSSP —
Ground terminal (for pad)
65 SYNDATA O
Synthesizer data output to the RF unit
66 SYNTH5MCLK O
Synthesizer reference oscillator output to the RF unit (9.62 MHz)
67 LCD REG-SET O
Register selection signal output for the liquid crystal display
“L”: instruction register, “H”: data register Not used (open)
68 LINE-LED O
LED drive signal output of the LINE LED (D1002) “L”: LED on
69 MT-INT I
Caller-ID interrupt input terminal “L” active Not used (open)
70 MT-DATA I
Caller-ID data input terminal Not used (open)
71 SYNCLK O
Synthesizer clock signal output to the RF unit
72 SYNSTB O
Synthesizer strobe signal output to the RF unit
73 VDDP —
Power supply terminal (+5V) (for pad)
74 VSSP —
Ground terminal (for pad)
75 SYNEN O
Synthesizer power control signal output to the RF unit “H”: enable
76 NVDI I/O
Two-way data bus with the EEPROM (IC951)
77 NVDO O
Clock signal output to the EEPROM (IC951)
78 LCD-R/W O
Data read/write selection signal output for the liquid crystal display
“L”: data write, “H”: data read Not used (open)
79 TXEN O
TX system enable signal output to the RF unit “H”: enable
80 TXPWR1 O
PA power selection signal output to the RF unit
81 RINGIN I
Detection signal input of the ringer coming “L”: ringer coming
82 TXRXSEL O
TX/RX selection signal output to the RF unit “L”: RX, “H”: TX
83 VCHG-MON I
Battery charge monitor input terminal
84 BASEP I
Setting terminal for the base/handset selection
“L”: base unit, “H”: handset unit (fixed at “L” in this set)
85 TXPWR0 O
PA power selection signal output to the RF unit
86 SPKEN O
Enable control signal output to the voice speakerphone (IC103) “L”: enable, “H”: CD
87
CHG-HIGH
RATE
O
Quick/normal charge selection signal output terminal
“L”: normal charge, “H”: quick charge
88 DIALMODE I
Dial mode switch (SW951) input terminal “L”: pulse, “H”: tone
89 NEW-CALL LED O
New arrival call ID LED drive signal output terminal “L”: LED on Not used (open)
90 VDDC —
Power supply terminal (+5V) (for core)
91 VSSC —
Ground terminal (for core)
92 SP-MUT O
Speaker muting on/off control signal output to the power amplifier (IC104) “H”: muting
93 MT-FSK-EN O
Caller-ID frequency shift keying enable signal output terminal Not used (open)
94 BRANCH-DET I
Reserve cancellation detect signal input terminal “H”: cancel status
95 DIALMUT O
Reception muting during dial transmission “H”: during dial transmission
96 RESETI I
System reset signal input from the reset signal generator (IC602) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”