Sony MZ-R5ST Service Manual page 52

Pin No. Pin Name I/O
51 AVREF —
52 AVDD —
53 AM3 I
54 TEMP I
55 KEY3 I
56 KEY2 —
57 KEY0 I
58 KEY1 I
59 UNREG MNT I
60 LIMNT I
61 FGIN I
62 DBB1 I
63 DBB2 I
64 INTSW I
65 PACK IN I
66 NC —
67 NC —
68 MICDET I
69 XLAT O
70 KEYON O
71 ST1A O
72 ST2A O
73 — —
74 — —
75 DQSY I
76 TCOUNT I
77 SDI1 I
78 SDO1 O
79 SCK1 O
80 SQSY I
81 BEEP O
82 — —
83 REFLECT I
84 TEX —
85 XT —
86 VSS —
87 VDD —
88 NC —
89 CS O
90 PD O
91 ST1B O
92 ST2B O
93 AMUTE O
94 XLCDRST O
95 CS EVR O
96 CSNV O
97 SCK2 O
98 NC —
99 SDO2 O
100 LCD CS O
Reference voltage input of A/D converter.
Power supply terminal of A/D converter.
External battery detection input.
Thermal sensor (IC803) input.
PLAY key/REC key input.
Key input from the machine. (Connected to VDD).
Key input from the machine.
Key input from the machine.
Unregulated voltage monitor input.
Lithium battery voltage monitor input.
FG input from spindle motor driver (IC701).
Digital Mega-base select input. #1.
Digital Mega-base select input. #2.
INITIAL switch input.
MEDIA switch input.
Not used. (Open).
Not used. (Open).
MIC jack detection input.
Latch output.
L: During SLEEP mode. H: During operation.
Stepping motor control output.
Stepping motor control output.
Not used. (Open).
Not used. (Open).
Sub code Q sync (SCOR) of DIGITAL IN U-bit CD format signal input from IC503.
Traverse count signal input.
Serial data input.
Serial data output.
Serial clock output.
Sub-Q/ADIP sync input.
Beep sound output control. H: Beep sound is output.
Not used. (Open).
CD/MO identification switch.
Not used. (Connected GND).
Not used. (Open).
GND.
Microprocessor power supply.
Not used. (Connected VDD).
Chip select output to D/A converter.
D/A converter power down signal output during recording.
Stepping motor control signal output.
Stepping motor control signal output.
Analog mute control. H: Mute.
LCD reset signal output.
Chip select signal output to audio gain control.
Chip select signal output to NV-RAM.
Serial clock output.
Not used. (GND).
Serial data output.
Chip select signal output to LCD.
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Description