JVC UX-P55 Service Manual page 39

Pin No. Symbol
37 NC
38 NC
39 NC
40 LEDRV
41 LEDREC
42 LEDFR
43 STTA
44 DATA
45 MODE
46 SCL
47 NC
48 PHOTO
49 INH
50 LCDCE
51 DIMMER
52 VOL+
53 LEDCTL
54 BASS-
55 VOL-
56 BASS+
57 TUST/CE
58 FTUNER
59 BUP
60 RESET
61 REM
62 RDSCK
63 MPX
64 NC
65 +BCTL
66 BLKCL
67 VSS0
68 VDD
69 X2
70 X1
71 IC
72 XT2
73 XT1
74 AVDD
75 AVREF0
76 SAFETY1
77 TAPE0
78 TAPE1
79 KEY0
80 KEY1
I/O
- Not use
- Not use
- Not use
O LED indicate Reverse
O LED indicate REC
O LED indicate Forward
O Tape strobe
O LCD data
O LCD data mode control
O LCD serial clock
- Not use
I Tape end detection
O LCD driver inhibit ('L' at end of transmission)
- LCD chip enable
- Dimmer control
I Volumn plus
O Power standby LED control
I Bass minus
I Volumn minus
I Bass plus
O Tuner PLL strobe
O Tuner function ('H'=TUNER)
O Back up power detect ('H'=BACKUP)
- Reset signal
I Remote control input
I RDS clock
I FM stereo detection ('L'=STEREO)
- Not use
- Not use
I Block clock input port
- GND
- Power supply
- Not use
- Not use
- GND
- Not use
- Not use
- Power supply
- Reference voltage
I Irregular voltage detection 1
I Tape Switch 0
I Tape Switch 1
I Unit Key input 1
I Unit Key input 0
Function
(No.22036)1-39