Service manual
Reference Information
Samsung Electronics 2-5
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
Mode data3 out controlled by micom
Limit switch/sled position sensor input pin0
Sled motor position sensor input pin 1
Test pin (L : normal H : test)
Counter clock
Focus servo lock signal output pin
Tracking servo lock signal output pin
0 : 1BIT 1 : 8BIT
System reset signal input pin
Micom chip select pin
Micom data/address select pin
Micom write clock signal input pin
Micom read clock signal input pin
Micom data pin 0
Micom data pin 1
Micom data pin 2
Micom data pin 3
Micom data pin 4
Micom data pin 5
Micom data pin 6
Micom data pin 7
Internal status monitor pin
Servo logic & ROM VDD power supply pin
System clock signal input pin
System clock signal output pin
Clock out (33.9688MHz) to DSP
Servo logic & ROM VSS power supply pin
Clock output pin for subcode data read
Subcode data input pin
Timing detection input pin for subcode data read
Motor ON signal input pin
Lock signal input pin
Direct jump control (for 1 track jump)
1 MDOUT3
SSTOP/PSO
PS1
TEST
COUT
FLKB
TLKB
PSB
RSTB
CSB
DAB
MWRB
MRDB
MDATA0
MDATA1
MDATA2
MDATA3
MDATA4
MDATA5
MDATA6
MDATA7
SENSE
DVDD
XI
XO
XOUT
DVSS
SQCK
SQSI
SCOR
SMON
LOCK
DIRC
FUNCTIONPIN NAME I/O
O
I
I
I
O
O
O
I
I
I
I
I
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
P
I
O
O
P
O
I
I
I
I
I
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
Focus OK signal input pin
PLL frequency detect control input pin
Laser diode ON signal output pin
Defect Detection signal input pin
Mirror signal input pin
PLL hold signal from micom
Servo interrupt monitor pin
PLL logic block VDD power supply pin
PLCK
Frequency lock detect output
(H : Lock L : Unlock)
Latched EFM output signal
PLL logic block VSS power supply pin
Resistor pin for VCO GAIN
Gain adjust resister for frequence detector
Gain adjust resister for phase detector
Control voltage for VCO
Input for hysteresis control of FD output (for test)
EFM offset adjustment pin
Tracking zero cross output pin
Servo CPU VDD power supply pin
EQ control signal
EFM signal for test
EFM signal
Asymmetric input signal for DVD
Asymmetric input signal for CD
RF input signal
Servo CPU VSS power supply pin
Analog block VSS power supply pin
Spindle error input pin
Reference voltage input pin
Tracking error signal input pin
34 FOKB
FDCTL
LDONB
DFCT
MIRR
PLLHD
INTO_224
PVDD
PLCK
PLLLOCK
EFMRTD
PVSS
RVCO
RFD
RPD
VCTL
MAGICO
EFMOA
TZCO
SVDD
EQCTL
EFMI
EFMO
LPFDVD
LPFCD
RFI
SVSS
AVSS
SME
VREF
TE
FUNCTIONPIN NAME I/O
I
I
O
I
I
I
O
P
O
O
O
P
I
I
I
I
I
I
O
P
O
I
O
I
I
I
P
P
I
I
I
72
71
70
69
68
67
66
Focus error signal input pin
RF envelope input pin
Tilt in (reserved)
Analog block VDD power supply pin
Tilt out (reserved)
Depth variation control signal output pin
Tracking balance signal output pin
Focus balance signal output pin
65 FE
ENV
TILTI
AVDD
TILTO
DVCTL
TBAL
FBAL
FUNCTIONPIN NAME I/O
I
I
I
P
O
O
O
O
80
79
78
77
76
75
74
73 Sled motor drive signal output pin
Spindle motor drive signal output pin
Focus actuator drive signal output pin
Tracking actuator drive signal output pin
TE signal for tracking zero cross input pin
Mode data 0 out controlled by micom
Mode data 1 out controlled by micom
Mode data 2 out controlled by micom
SLD
SPD
FOD
TRD
TZCA
MDOUT0
MDOUT1
MDOUT2
FUNCTIONPIN NAME I/O
O
O
O
O
I
O
O
O