Sony XES-Z50 Service Manual page 56

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Pin No. Pin Name
44 UNICKI
45 UNISI
46 UNISO
47 VDD
48 AVDD
49 AVREF
50 MS-1
51 MS-0
52
SRAM RST
53 MUTE SEL
54 DST SEL 1
55 DST SEL 0
56 AM VSM
57 FM VSM
58 AVREF–
59 AVSS
60 VSS
61 TU ON
62 LO/DX
63 SEEK
TE
L 13942296513
64 AM ON
65 FM ON
66 MUTE
67 AF SEEK
68 SRAM
69 A15
70 ST/MONO
71 SD
72 DIVER
73 MAIN/SUB
74 CE
75 A11
76 A10
77 A9
78 A8
79 A7
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80 A6
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I/O
I Serial data transfer clock signal input from the system controller (IC501)
I
Serial data input from the bus interface (IC503) (for SONY bus)
O
Serial data output to the bus interface (IC503) (for SONY bus)
—
Power supply terminal (+5V)
— Power supply terminal (+5V) (for A/D conversion)
I
Reference voltage input terminal (+5V) (for A/D conversion)
I
Input terminal for PLL IC setting in the FM/AM tuner unit (fixed at "L")
I
Input terminal for PLL IC setting in the FM/AM tuner unit (fixed at "L")
Internal RAM reset detection signal input from the reset signal generator (IC517)
I
Input terminal to check that internal RAM data are not destroyed due to low voltage
I
Input terminal for setting mute operation (fixed at "L")
I Input terminal for setting destination (fixed at "L")
I
Input terminal for setting destination (fixed at "H")
I
AM signal meter voltage detection signal input from the FM/AM tuner unit
I
FM signal meter voltage detection signal input from the FM/AM tuner unit
I Reference voltage input terminal (0V) (for A/D conversion)
—
Ground terminal (for A/D conversion)
—
Ground terminal
O
Output of power on/off control signal for the tuner system power supply "H": tuner on
O Local/DX selection signal output terminal Not used (open)
Seek signal output to the FM/AM tuner unit (used for IF count output request, AGC cut etc.)
O
Output level "L" when change the frequency
Output of power on/off control signal for the AM circuit power supply, and FM/AM selection
O
signal output terminal "H": AM on
O
Output of power on/off control signal for the FM circuit power supply "H": FM on
O
Mute control signal output to the FM/AM tuner unit "H": mute on
I
AF seek control signal input terminal Not used (fixed at "L")
I
Chip select signal output to the external RAM device Not used (fixed at "L")
O Address signal output to the external RAM device Not used (open)
Input of FM stereo detection signal from FM/AM tuner unit, and output of forced monaural
control signal to FM/AM tuner unit (Commonly used for stereo display input and forced
I/O
monaural output) FM stereo detection at input of "L", forced monaural at output of "L"
Station detector detection signal input from the FM/AM tuner unit
I
Stop level for SEEK, BTM, etc. is determined SD is present at input of "H"
O Diversity antenna on/off control signal output terminal "H": antenna on
Diversity antenna main/sub select signal output to the FM/AM tuner unit
O
"H": main, "L": sub
O Chip select signal output to the external RAM device Not used (open)
O
O
O
Address signal output to the external RAM device Not used (open)
O
O
O
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