Sony HCD-VX222 Service Manual page 47

Pin No. Pin Name I/O
52 OUTSW I
53 MODEL1 I
54 MODEL2 I
55 TBLL —
56 TBLR —
57 to 59 ENC1 to ENC3 —
60, 61 —
62 VCC I
63 —
64 VSS —
65 V.MUTE O
66 to 72 A6 to A0 O
73 TEST LED O
74 TEST1 I
75 TEST2 I
76 TEST3 I
77 DEVICE RESET O
78 STANDBY O
79 FL CS O
80 FLBLK O
81 to 88 D7 to D0 I/O
89 MIC CTRL —
90 to 92 KEY1 to KEY3 I
93 NT/PAL I
94 MUSIC VOL —
95 DSP DATA O
96 AVSS —
97 DSP LATCH O
98 VREF I
99 AVCC I
100 AMP ON —
Disc detection (load out) switch input terminal. Not used (fixed at "H")
Destination setting terminal (fixed at "L")
Destination setting terminal (fixed at "L")
Not used (open)
Not used (open)
Not used (open)
Not used (open)
Power supply terminal (+5V)
Not used (open)
Ground terminal
Video muting on/off control signal output
Address signal output for the external device. Not used (open)
LED drive signal output for the self diagnosis indicator (D502) Normally: "L" (LED on)
Setting terminal for the test mode 1 (for VCD check) Normally: fixed at "H" ("L": test mode)
Setting terminal for the test mode 2 (for SERVO check) Normally: fixed at "H" ("L": test mode)
Setting terminal for the test mode 3 Normally: fixed at "H" ("L": test mode) Not used (fixed at "H")
System reset signal output to the CXD3008Q (IC101), BA5974FP (IC102) and D/A converter (IC509) "L": reset
Standby on/off control signal output terminal. Not used (open)
Chip select signal output terminal. Not used (open)
Blank control signal output terminal. Not used (open)
Two-way data bus with the external device. Not used (open)
Not used.
Key input terminal. Not used (fixed at "H")
Video system select input terminal (open: AUTO)
Not used.
Serial data output to the CXD3008Q (IC101)
Ground terminal (for A/D conversion)
Serial data latch pulse output to the CXD3008Q (IC101)
Reference voltage (+5V) input terminal (for A/D conversion)
Power supply terminal (+5V) (for A/D conversion)
Not used.
Description
HCD-VX222
47