LG CED-8083B Service Manual page 49

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• Pin Description
Pin No.
Name
1
CEP
2
CEM
3
CEO
4
SWRF
5
WREF
6
APCCSW
7
VWDC1
8
VWDC2
9
VWDCN
10
VWDC
11
FVREF
12
RREF
13
VRDCN
14
VRDC
15
34
VCC
67
89
16
FPDO
17
FPDIN
18
31
GND
63
87
19
SMIN
20
SMFB
21
SMOUT
22
AGC3C
23
AGC2G
24
AGC1G
25
ATFM
26
ATFG
27
CAV_CNT
28
CNT_VC
29
VCT2
30
VCT1
32
DVC
33
VC
35
VTIREF
36
BGIREF
37
DSPVCC
38
WFPDSH
32
I/O
Center Error Amp Input (+)
Center Error Amp Input (-)
O
Center Error Amp Output
O
Write RF Servo Signal Output (for Running OPC)
I
Power Sertting Voltage Input for Write APC
APC Time Constant Control for Write
O
VWDC1 Voltage Output
O
VWDC2 Voltage Output
APC Amp Input (-) for Write
O
APC Amp Output for Write
I
Reference Voltage Input for APC
I
Power Setting Voltage Input for Read APC
I
APC Amp Input (-) for Read
O
APC Amp Output for Read
I
Analog Positive Power Source Pin
I/O
Laser Monitor Output/Laser Monitor Voltage Input
I
Laser Monitor Diode Contact Pin
I
Analong Ground Pin
I
OP Amp Input
OP Amp Input (-)
O
OP Amp Output
O
External CAP Connector Pin for AGC Response Speed Setting
O
External CAP Connector Pin for AGC Response Speed Setting
O
External CAP Connector Pin for AGC Response Speed Setting
O
Wobble Signal Output
O
ATIP FG Output
I
CAV Speed Control Voltage Input
I
CAV Speed Control Reference Voltage Input
Decoupling Pin for VC Voltage
Decoupling Pin for DVC Voltage
O
DSPVCC/2 Voltage Output. Internal Reference Voltage.
O
VCC/2 Voltage Output. Internal Reference Voltage.
Resistance Connector Pin for Reference Current Setting
Resistance Connector Pin for Reference Current Setting
I
DSP Positive Power Source Pin
I
Sample Pulse Input for Write APC
Pin Description

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