Sony XR-C340 Service Manual page 17

Pin No. Pin Name
44 DOLON
45 AMSIN
46 ST
47 AMS_ON
48 N_ROUT
49 TAPMUT
50 ILLON
51 SD_IN
52 NOSESW
53 TELMUT
54 REL
55 ACCIN
56 TESTIN
57 RC_IN1
58 PW_SEL
59 MTLIN
60 AD_ON
61 KEYSEL
62 SOUTSEL
63 COLORSEL
64 LCDCE
65 LCDCKO
66 LCDSO
67 LCDINH
68 UNICKI
69 UNISO
70 UNISI
71 UNICKO
72 BUSON
73 SYSRST
74 VREG
75 GND
76 X_OUT
77 X_IN
78 CE
79 VDD1
80 RESET
I/O
DOLBY control input/output pin
At initial mode: valid/invalid selection input of DOLBY function
I/O
At normal mode: DOLBY on/off output
I Tape mucic with/without detection pin "L": with music
I/O Stereo detection signal input and forced monaural signal output pin
O At AMS: "L"
O Forward/reverse control pin
O Tape muting control pin At muting: "H"
Illumination power supply control pin
At PW SEL on: ACC on: "H"
O
At PW SEL off: ACC on: "H"
I Station detection signal input pin
I Front panel removal or attaching detection pin
I Telephone muting detection pin "L": 20dB audio muting
I Reel table rotation detection pin
I Accessory voltage detection pin
I Test mode setting pin
I Rotary remote commander input pin (A/D input)
I Power select switch input pin
I AUTO METAL detection pin "L": METAL (Fixed at "H" in this set)
O Power supply control pin for A/D conversion
I Key function setting pin
Active select pin for #• SEKOUT
I
I Illumination color setting pin "L": amber,"H": green
O LCD chip enable output pin
O LCD clock output pin
O LCD data output pin
O LCD brank indication control pin
I Clock input pin (for SONY BUS)
O Data output pin (for SONY BUS)
I Data input pin (for SONY BUS)
O Clock output pin (for SONY BUS)
O BUS ON control signal output pin (for SONY BUS)
O System reset signal output pin
O CPU regurator output pin
– GND
O System clock output pin (4.5MHz)
I System clock input pin (4.5MHz)
I Fixed at "L"
– Power supply
I Reset input pin
Function
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