Sony XR-C8100R, Service Manual

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Pin No. Pin Name I/O Pin Description
54 VCC — Power supply pin (+5 V)
55 RAMBU I RAM reset detection input
56 POWSEL I Power select initial setting input
57 EQ-SEL O Equalizer connection : “H”
58 TESTIN I Test mode setting detection input
59 PACK-IND O Door indicator output
60 TIRPLAY O TIR playback audio line select output
61, 62 SUB-SW1, 0 O Simple SUB WOOFER control output 1, 0
63 VSS — GND
64 VOLCE O Electric volume serial chip enable output
65 MUTE O System mute control output
66 VOLSO/SUBSO O Main/Sub volume serial data output
67 VOLCKO/SUBCKO O Main/Sub volume serial clock output
68 SUBCE O Sub volume serial chip enable output
69 FLASH-W I Flash write in mode detection input
70 12CSIO I/O RDS serial data input/output
71 12CCKO O RDS serial clock output
72 RC-IN1 I Rotary commander input
73 X1A — Low speed oscillation input (32.768 kHz)
74 X0A — Low speed oscillation input (32.768 kHz)
75 DAVN I RDS IC data taking in detection input (Not used in this set.)
76 KEYACK I Key input acknowledge
77 BU-IN I Back-up power detection input
78 ILLIN I Illumination line detection input
79 TELMUTE I Telephone mute detection input
80 NOSESW I Front panel detachable detection input
81 ACCIN I Accessory power detection input
82 – 85 TIR-D0, D1, D2, D3 I/O TIR IC command input/output D0, D1, D2, D3
86 HSTX — Connect to power supply pin.
87 MD2 I Connect to GND.
88, 89 MD0, 1 I Connect to power supply pin.
90 RST I Microcomputer reset input
91 VSS — GND
92 X0 — High speed oscillation input (3.68 MHz)
93 X1 — High speed oscillation input (3.68 MHz)
94 VCC — Power supply pin (+5 V)
95 TIR-BUSY I TIR IC BUSY output monitor pin
96 TIR-WR O TIR IC data write pulse output
97 TIR-CE O TIR IC CE output
98 TIR-CE O TIR IC CE output
99 TIR-RES O TIR IC reset/power down
100 TIR-PDOWN O TIR IC power down
101 TIR-RD O TIR IC data read pulse output
102 MTLIN I Auto METAL detection input
103 AMSIN I Tape AMS music detection input
104 REEL I Tape reel table rotation detection input
105 POS0 I Tape position detection input 0
106 POS1 I Tape position detection input 1
107 POS2 I Tape position detection input 2
108 POS3 I Tape position detection input 3
109 LM-EJ O Tape loading motor control output (Eject direction)
110 LM-LOD O Tape loading motor control output (Loading direction)
111 CM-ON O Tape capstan motor control output