Dell GCR-8481B Service Manual page 18

• IC501 CXD3045R
Pin Description
Pin No. Symbol
1 AVS6
2 SAO
3 TAO
4 FAO
5 BSSD
6 AVD6
7 VSIO0
` 8 SFDF
9 SFDR
10 SRDF
11 SRDR
12 VDC0
13 RMUT
14 LMUT
15 VSC0
16 DOUT
17 VDIO0
18 SSTP
19 MDP
20 PWMI
21 DFCT
22 ATSK
23 MNT0
24 MNT1
25 MNT2
26 MNT3
27 XPLCK
28 VSIO1
29 WFCK
30 RFCK
31 LOCK
32 VDC1
33 MTST3
34 VSC1
35 MTST2
36 MTST1
37 VDIO1
16
I/O
Analog GND
O Analog DAC Analog Output of Slide Filter
O Analog DAC Analog Output of Tracking Filter
O Analog DAC Analog Output of Focus Filter
I Constant Current Input for DAC Analog of Servo Filter
Analog Power Supply (2.5V)
Digital GND
O 1,0 Control Output of stepping Motor
O 1,0 Control Output of stepping Motor/SLED drive
O 1,0 Control Output of stepping Motor
O 1,0 Control Output of stepping Motor/SLED drive
Digital Power Supply (2.5V)
O 1,0 Audio DAC, Rch Zero Detection Play/PWM0*/COUT*/Signal Output
O 1,0 Audio DAC, Lch Zero Detection Play/RWM1* Signal Output
Digital GND
O 1,0 Digital-Out Output
Digital Power Supply (3.3V)
I Disc Inner Track Detection Signal Input
O 1,Z,0 Control Output of Spindle Motor
I External Terminal Input of Spindle Motor
I/O 1,0 Defect Signal In/Output
I Pin for Anti-Shock.
O 1,0 MNT0/XRAOF* Signal Output
O 1,0 MNT1/C2PO* Signal Output
O 1,0 MNT2/XUGF* Signal Output
O 1,0 MNT3/GTOP* Signal Output
O 1,0 XPLCK/WDCK*/C2PO*/PWM4* Signal Output
Digital GND
O 1,0 WFCK/LRCK*/BLRCK*/PWM2* Signal Output
O 1,0 RFCK/PCMD*/BPCMD*/PWM3* Signal Output
O 1,0 LOCK/BCK*/BBCK* Signal Output
Digital Power Supply (2.5V)
I Test Pin. Normally "L"
Digital GND
I Test Pin. Normally "L"
I Test Pin. Normally "L"
Digital Power Supply (3.3V)
COMMENT
It set to "L" When is not used.