Sony Walkman D-EJ955 Service Manual page 24

D-EJ955
QQ
3 7 63 1515 0
Pin No. Pin Name
41 to 56 SEG15 to SEG0
57 to 60 COM3 to COM0
61 to 63 V3 to V1
64, 65 C1, C0
66 XWAKE
67 PGMSO
68 PGMSI
69 PGMSCK
70 AGCPWM
71 IR RMC
72 FG/FGSEL
73 PGMSEL
74 XDRVLT
75 XPOWLT
76 CHGGND ON
77 HG XCTB
78 HG GUP
79 XRST
TE
L 13942296513
80 LEDDISP
www
.
24
http://www.xiaoyu163.com
I/O
O Segment drive signal output terminal for the liquid crystal display Not used (open)
O Common drive signal output terminal for the liquid crystal display Not used (open)
O Liquid crystal display drive bias control signal output terminal Not used
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
O
Not used
Wakeup control signal output to the power control (IC403) (for system standby reset)
O
"L": wakeup The stop status is reset with the falling edge of input signal
O Not used (open)
I Not used (open)
O Not used (open)
O
AGC control pulse signal output to the power control (IC403)
I Not used (fixed at "L")
O
FG pulse signal input from the spindle motor driver (IC404)
O Not used (open)
O
Serial data latch pulse signal output to the spindle motor driver (IC404)
O Serial data latch pulse signal output to the power control (IC403)
O Ground control signal output at the battery charge
O
Hologram control signal output to the optical pick-up "L": stop
O
CD-RW gain control signal output to the optical pick-up "H": gain up
Reset signal output to the headphone amplifier (IC301), spindle motor driver (IC404) and
O
CXD3029R (IC601) "L": reset
O
CHARGE LED (D801) drive signal output "L": LED on
x ao
y
i
http://www.xiaoyu163.com
8
Description
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9