Sony WM-FX673 Service Manual page 18

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Pin No. Pin Name
55 BOOST CTL
56 REVIVE CTL
57 MB/GRV CTL
58 AMP CTL
59 DOLBY CTL
60 PM CTL
61 DDC2 CTL
62 RADIO CTL
63 TEST
64 IF IN
65 LOCAL/DX
66 DO
67 WAKE UP
68 MONO/ST
69 GND
TE
L 13942296513 70 FM IN
71 AM IN
72 VDD
RESET
73
74 XOUT
75 XIN
76 VXT
77 VLCD
78 C1
79 C2
80 VEE
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I/O
O Bass boost control signal output to the TA2123AF (IC301) "L": off, "H": on
Emphasizing sound control signal output to the TA2123AF (IC301)
O
"L": RV (revive), "H": normal/MB (mega bass)/GRV (groove)
Emphasizing sound control signal output to the TA2123AF (IC301)
O
"L": normal/RV (revive)/GRV (groove), "H": MB (mega bass)
Power on/off control signal output to the TA2123AF (IC301)
O
"L": power off, "H": power on
Dolby on/off control signal output to the dolby NR amp (IC302)
O
"L": dolby NR on, "H": dolby NR off
O Plunger drive signal output terminal "L": plunger on
Power on/off control signal output of the DC/DC converter circuit
O
"L": power off, "H": power on
Power on/off control signal output of the FM and AM circuit
O
"L": power on (FM or AM on), "H": power off (tape on)
I Test input terminal Normally: fixed at "L"
I Intermediate frequency detect signal input from the TA2022AFN (IC2)
O Local/DX select signal output terminal "L": DX, "H": local
O
PLL error signal output terminal
Input of acknowledge signal for the key entry
I
Acknowledge signal is input to accept function in the power off status On at input of "H"
O FM stereo/mono select signal output to the TA2022AFN (IC2) "L": stereo, "H": mono
— Ground terminal
I FM VCO input terminal
I
AM (MW) VCO input terminal
— Power supply terminal (+2.5V)
I
System reset signal input terminal "L": reset
O System clock output terminal (75 kHz)
I System clock input terminal (75 kHz)
— Terminal to which external capacitor is connected to stabilize crystal oscillator power supply
—
—
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
—
—
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