Sony HCD-VX3A Service Manual page 51

• PANEL BOARD IC601 TMP88CP76F-6001 (FLUORESCENT INDICATOR TUBE DRIVE, LED DRIVE,
KET CONTROL)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14 to 17
18
19
20
21
22
23
24
25
26
27 to 39
40
41
42 to 64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
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Pin Name I/O
SIRCS I Remote control signal input from the remote control receiver (IC602)
LED-ENTER-AMS O Led For ENTER/AMS
WAKE-UP O WAKE-UP For Powersave
LED-TAPE-B O LED For TAPE B FW/RV
LED-CD-PLAY O LED For CD PLAY/PAUSE
LED-TAPE-A O LED For TAPE A FW/RV
L.SEL O Dynamic LED
JOG-B I Jog dial pulse input from the S601 (JOG)
VOL-A I Rotary encoder pulse input from the S602 (VOLUME)
VOL-B I Rotary encoder pulse input from the S602 (VOLUME)
KEY-0 I Key input terminal (A/D input) (S631 to S643)
KEY-1 I Key input terminal (A/D input) (S644 to S657)
KEY-2 I Key input terminal (A/D input) (S658 to S663)
BPF1 to BPF4 I Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
ALL BAND I/O Vacs/non-stop
LED-DISK-1 O Led for DISK1
LED-DISK-2 O Led for DISK2
LED-DISK-3 O Led for DISK3
LED-GRV-JOG I LED for GROOVE/JOG
VSS-IO I/O Ground terminal
VASS — Ground terminal
VAREF I Reference voltage (+5V) input terminal (forA/D conversion)
VDD-IO I/O Power supply terminal (+5V)
GRID 0 to GRID12 O Grid drive signal output to the fluorescent indicator tube (FL601)
ANODE0 O Anode drive signal output to the fluorescent indicator tube (FL601)
VDD-VFT — Power supply terminal (+5V)
ANODE1 to
O Anode drive signal output to the fluorescent indicator tube(FL601)
ANODE23
L-VCD-PBC O Led for VCD/PBC on
LED-NSTOP-
O LED for STOP/PBC-OFF
PBC-OFF
L-REC/PAUSE O Led for REC/PAUSE
VKK — Power supply terminal (-30V) (for fluorescent indicator tube drive)
VDD-CPU — Power supply terminal (+5V)
XIN I System clock input terminal (12.5MHz)
VSS-CPU — Ground terminal
XOUT O System clock output terminal (12.5MHz)
RESET I System reset signal input from the reset sygnal generator (IC501)
LED-STBY O Led for Standby
LED-TMR
O Led for timer
SELECT
TEST I Connected to ground
N.C. — Not connected
I2C DATA I/O Communication data bus with the system controller (IC501)
Communication data reading clock sygnal input or transfer clock sygnal output withthe system controller
I2C CLK I/O
(IC501)
JOG-A I Jog dial pulse input from the S601 (JOG)
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