Dell GCR-8481B Service Manual page 19

Pin No. Symbol
38 AVD2
39 IGEN
40 AVS2
41 ADIO
42 RFDC
43 CE
44 TE
45 SE
46 FE
47 VC
48 VPCO1
49 VCTL
50 FILO
51 FILI
52 PCO
53 CLTV
54 AVS1
55 RFAC
56 BIAS
57 ASYI
58 ASYO
59 AVD1
60 VDC2
61 VDC3
62 VSC2
63 VSC3
64 FOK
65 MIRR
66 GFS
67 PG7/SCKZ0
68 PG6/SO0
69 PG5/SI0
70 PG4/SCSZ0
71 PG3/XWP
72 PG2/XONBR
73 PG1/PWM1/DA1
74 PG0/PWM0/DA0
75 DRV 0
DD
I/O
Analog Power Supply (2.5V)
I Resistor Connection Pin of Current Source Reference for OP Amp
Analog GND
O Analog OP Amp Output
I RF Signal Input
I Center Servo Analog Input
I Tracking Error Signal Input
I Slide Error Signal Input
I Focus Error Signal Input
I Center voltage Input
O 1,Z,0 Output of VCO2 for Wide-Band EFM PLL
I Input of VCO2 Control voltage for Wide-Band EFM PLL
O Analog Filter Output for Master PLL (Slave = Digital PLL)
I Filter Input for Master PLL
O 1,Z,0 Change Pump Output for Master PLL
I Multiplier VCO Control Voltage Input
Analog GND
I EFM Signal Input
I Asymmetry Circuit Constant Current Input
I Asymmetry Comparator Voltage Input
O 1,0 EFM Full-Swing Output (L=V
Analog Power Supply (2.5V)
Digital Power Supply (2.5V)
Digital Power Supply (2.5V)
Digital GND
Digital GND
I/O 1,0 Focus OK Signal IN/OUT
I/O 1,0 Mirror Signal IN/OUT
O 1,0 GFS Output
(Port G)
I/O 1,0
IN/Output port as 1 bit
(Port G) In/Output port as 1 bit
Active Hard Reset Input port
I/O 1,0
(Port G)
IN/Output port as 1 bit
Internal DRAM Exclusive Power Supply
COMMENT
, H=V )
SS DD
Serial Clock In/Output port
Serial Data Output
Serial Data Input
Serial chip select Input
Write protect output port
14 bit PWM Output port DA Gate pulse Output port
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