Samsung DVD-812 Service Manual page 20

Pin
Pin Name I/O
No.
1 ACD I Optical main beam A, AC Coupling input terminals for CD of RF
block
2 BCD I Optical main beam B, AC Coupling input terminals for CD of RF
block
3 CCD I Optical main beam C, AC Coupling input terminals for CD of RF
block
4 DCD I Optical main beam D, AC Coupling input terminals for CD of RF
block
5 ADVD I Optical main beam A, AC Coupling input terminals for DVD of RF
block
6 BDVD I Optical main beam B, AC Coupling input terminals for DVD of RF
block
7 CDVD I Optical main beam C, AC Coupling input terminals for DVD of RF
block
8 DDVD I Optical main beam D, AC Coupling input terminals for DVD of RF
block
9 RREFBF - RF AMP I/O buffer bias resistance connection terminal
10 RREFEQ - RF EQ BIAS resistance connection terminal
11 RREF - Analog Block bias resistance connection terminal
12 VREFEQ - CAP connection terminal for RF EQ Center voltage
13 E I CD Optical sub beam E input terminal for Servos
14 F I CD Optical sub beam F input terminal for Servos
15 ADVD1 I Optical main beam A input terminal for DVD of Servo block
16 BDVD1 I Optical main beam B input terminal for DVD of Servo block
17 CDVD1 I Optical main beam C input terminal for DVD of Servo block
18 DDVD1 I Optical main beam D input terminal for DVD of Servo block
19 ACD1 I Optical main beam A input terminal for CD of Servo block
20 BCD1 I Optical main beam B input terminal for CD of Servo block
21 CCD1 I Optical main beam C input terminal for CD of Servo block
22 DCD1 I Optical main beam D input terminal for CD of Servo block
23 AVCC P Power voltage input terminal for Analog Part
24 VREFA I/O CAP connection terminal for Analog Part center voltage
Uses an external block
25 FOFST - CAP connection terminal (open) for Focus Auto Offsets
26 OFSTHOLD I On/Off terminal for Auto Offset Block.
(L: Auto Offset Adjustments, H: Serial Offset Adjustments)
27 VREFLP_BGI I Band gap voltage input block for ALPC
Optical Laser Diodes operation voltage output terminal for DVD
28 LDODVD O
Optical Laser Monitor Diode voltage input terminal for DVD
29 PDDVD I
Optical Laser Diode operating voltage output terminal for CD
30 LDOCD O
Optical Laser Monitor Diode voltage input terminal for CD
31 PDCD I
Power GND terminal for Analog Part
32 AGND P
FE AMP output terminal
33 FE O
Input terminal for selecting FE AMP Gain
34 FEN I
Input terminal for selecting TE AMP Gain
35 TEN I
TE AMP output terminal
36 TE O
Bias resistance terminal for PDLIMIT
37 PDLIMTRES -
ABCD AMP for selecting Gain (
38 ABCDN I
ABCD AMP output terminal
39 ABCD O
ABCD AC Coupling input terminal for servo monitor
40 ABCDI I
CAP connection terminal for selecting the RC value of Peak Hold
41 ENVP -
for detecting RF Envelopes
CAP connection terminal for selecting the RC value of Bottom
42 ENVB -
Hold for detecting RF Envelopes
RF Envelope Detect Output terminal
43 ENV O
Power GND input terminal for digital circuits
44 DGND P
Focus OK comparating level input terminal
45 FOKTH I
Focus OK comparator output terminal (L: Focus OK)
46 FOKB O
Connection terminal for RC value of Peak Hold, for selecting the
47 DFCT_CP1 -
maximum time for Servo signal
Connection terminal for RC value of Peak Hold, for selecting the
48 DFCT_CP2 -
minimum defect time for PLL
Peak Hold Output terminal for selecting the minimum Defect time
49 CC1 O
for Defect
Peak Hold AC Coupling Input terminal for Defect
50 CC2 I
Power voltage input terminal for digital circuit
51 DVCC P
Resistance connection terminal for selecting the Defect Comparat-
52 DFCTTH2 -
ing Level for PLL
Resistance connection terminal for selecting the Defect Comparat-
53 DFCTTH1 -
ing Level for Servo
Defect output terminal for Servo
54 DFCT1 O
Defect output terminal for PLL
55 DFCT2 O
Power voltage input terminal for DPD TE
56 DPDVCC P
Mirror output terminal
57 MIRR O
BCA output terminal
58 BCA O
Samsung Electronics
Description Related Block
PRE AMP
PRE AMP
PRE AMP
PRE AMP
PRE AMP
PRE AMP
PRE AMP
PRE AMP
RF AMP
RF EQ
ANALOG
EQ VC AMP
TE 3B
TE 3B
SERVO AMP
SERVO AMP
SERVO AMP
SERVO AMP
SERVO AMP
SERVO AMP
SERVO AMP
SERVO AMP
ANALOG
ANA VC AMP
FE AMP
OFSTCTL
ALPC
ALPC
ALPC
ALPC
ALPC
ANALOG
FE AMP
FE AMP
TE AMP
TE AMP
DPD
- ) input terminal
ABCD AMP
ABCD AMP
SERVO MONIT -
RF ENV
RF ENV
RF ENV
DIGITAL
FOKB
FOKB
DFCT
DFCT
DFCT
DFCT
DIGITAL
DEFECT
DEFECT
DEFECT
DEFECT
DPD
MIRR
BCA
Related
Pin
Pin Name I/O
Part
No.
P/U Cap connection terminal (open) for 3B TE Offset
59 TE3OFST -
DPD EQ (A+C) output terminal
60 DPDEQ1 O
P/U
DPD EQ (B+D) output terminal
61 DPDEQ2 O
DPD abnormal wave form output terminal (monitor)
62 FAULTOUT O
P/U
DPD TE MUTE control terminal (H: Mute)
63 DPDMUTE I
P/U DPD TE PLL variable input terminal
64 PLLCTL I
DPD TE PLL variable bias resistance
65 TE1RES I
P/U
Power GND input terminal for DPD TE
66 DPDGND P
CAP connection terminal for DPD TE center voltage
67 VREFDPD O
P/U
Bias resistance connection terminal for Delay Block
68 RREFDLY -
P/U
Data input terminal
69 DATA I
Clock input terminal
70 CLOCK I
P/U
Data Enable input terminal
71 STB I
Input terminal for RC value of OSC, for Auto Offset Block
72 OSC
-
Reset input terminal (L: Reset) for Auto Offset Block
73 RESET I
-
BCA Filter1
74 BCAI I
-
BCA Filter2
75 BCAO O
-
RF Ripple Center voltage output terminal for Mirror
76 RFCT O
P/U
CAP connection terminal of RC value of Bottom Hold, for RFCT
77 CB2 -
P/U
generation
P/U
CAP connection terminal of RC value of Peak Hold, for RFCT gen-
78 CP2 -
eration
P/U
RF Ripple Amp output terminal for Mirror
79 RFRP O
P/U
Input terminal for selecting RFRP Amp gain
80 RFRPN I
P/U
RF Ripple Offset control terminal for Mirror
81 MROFST I
P/U
RC connection terminal of RC value of Bottom Hold, for RFRP
82 CB1 -
P/U
generation
P/U RC connection terminal of RC value of Peak Hold, for RFRP gen-
83 CP1 -
eration
P/U
Input terminal for MIRR signal generation
84 MIRRI I
-
Power voltage input signal for RF EQ
85 EQVCC P
SERVO
RF EQ output terminal
86 RFEQ0 0
BCA Comparating Level control terminal
87 BCATH I
-
RFAGCO input terminal for RF EQ
88 EQIN I
MICOM
RF AGC AMP output terminal
89 RFAGCO O
CAP connection terminal for time constant of AGC
- 90 AGCC -
AGC voltage input terminal while in AGC hold
91 AGCI I
P/U
Power GND input terminal for RF EQ
P/U
92 EQGND P
AGC Level control voltage input terminal (3.5 V) while in AGC hold
P/U
93 AGCLEVEL I
off
P/U
RC connection terminal for RC value of Bottom Hold, for RF AGC RF AGC
94 AGCB -
-
RC connection terminal for RC value of Peak Hold, for RF AGC
95 AGCP -
DSSP
Bias resistance connection terminal for selecting RF EQ frequency RF EQ
96 RDPF -
-
RF EQ Boost Gain control voltage input terminal
97 EQG I
-
RF EQ Peak Frequency control voltage input terminal
98 EQF I
DSSP
Wide-band PLL compatible RF EQ Peak Frequency Control termi-
99 PLLF I
- nal
RF EQ zero control terminal
100 VZOCTL I
-
-
-
-
DSSP
-
-
DSSP
-
-
-
-
-
-
-
DSSP
PLL
-
DSSP
DSP
Reference Information
Description Related Block
3B TE AMP
DPD
DPD
DPD
DPD
DPD
DPD
DPD
DPD VC AMP
Delay Block
Serial Interface
Serial Interface
Serial Interface
Auto OFSTCTL
Auto OFSTCTL
BCA
BCA
Related
MIRROR
MIRROR
MIRROR
MIRROR
MIRROR
MRROR
MRROR
MRROR
MRROR
RF EQ
RF EQ
BCA
RFEQ,RFENV
RF AGC
RF AGC
RF AGC
RF EQ
RF AGC
RF AGC
RF EQ
RF EQ
RF EQ
RF EQ
Related
Part
-
-
-
-
MICOM
SERVO
-
-
-
-
MICOM
MICOM
MICOM
-
MICOM
-
-
DSSP
-
-
DSSP
-
-
-
-
-
-
PLL
DSP
DSSP
-
-
-
-
-
-
-
-
DSSP
DSSP
DSSP
DSSP
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