LG GCC-4242N Service Manual page 31

256 241 Pin name
107 99 B12 LDCNT2
108 100 - V
DD3
109 101 C14 LDCNT1
110 102 - V
SS
111 103 E11 DRV0
112 104 B13 DRV1
113 105 D12 DRV2
114 106 A14 DRV3
115 107 E12 FG
116 108 B14 WBLI
117 109 C16 BDO
118 110 A15 OFTR
119 111 C13 DRV12/FEPCK
120 112 C15 DRV13/FEPDT
121 113 D13 DRV14/FEPEN
122 114 B15 SCFCK
123 115 - V
SS
124 116 - V
DD3
125 117 A16 SH1/IDGT
126 118 B16 SH2/DTRD
127 NC NC 0
128 NC NC 0
129 119 C18 SH3/VFOSHORT
130 120 D18 SH4
131 121 E18 SH5/P26
132 122 C17 SH6/P27
133 123 - V
DD3
134 124 - V
SS
135 125 F18 ADST0
136 126 D16 ADST1
137 127 G18 DRV8
138 128 D17 DRV9
139 129 F16 DRV10
140 130 E13 DRV11
141 131 H18 TSTSG
142 132 G14 VFOSHORT
System controller
external connectior I/O
O
Power
supply
O
GND
I/O
I/O
I/O
I/O
I
I
I
I
I/O
I/O
I/O
O
GND
Power
supply
O
O
O
O
I/O
I/O
Power
supply
GND
O
O
I/O
I/O
I/O
I/O
O
O
Destination
LDD LD driver control
V (3.3 V)
-
DD
LDD LD driver control
- V
SS
DRVIC Traverse drive output/General-purpose port
DRVIC Spin drive output
DRVIC General-purpose port/Differential PWM/PWM
DRVIC General-purpose port/Differential PWM/PWM
DRVIC Motor FG input
EFEP ATIP wobble input
FEP Dropout signal input
FEP Off-track signal input
FEP FEP clock output/General-purpose port
FEP FEP data/General-purpose port
FEP FEP enable signal/General-purpose port
Reference clock for wobble signal extraction BPF
EFEP use
V
-
SS
- V (3.3 V)
DD
General-purpose S/H 1 (ROPC1)/CAPA block
EFEP selection signal
General-purpose S/H 2 (ROPC2)/Data block
EFEP
frequency control selection signal
EFEP General-purpose S/H 3 (RAPC)/VFO short output
EFEP General-purpose S/H 4 (WAPC)
EFEP Gerneral-purpose S/H5(MSH)/General-purpose port
Gerneral-purpose S/H6(SSH)/General-purpose port
EFEP
- V (3.3V)
DD
V
-
SS
EFEP AD conversion timing 0
EFEP AD conversion timing 1
Misc General-purpose port/PWM
Misc General-purpose port/PWM
Misc General-purpose port/PWM
Misc General-purpose port/PWM
FEP EQ calibration signal
FEP VFO short output
Description
33