Page 1
X92-4110-0x/4570-0x
2
BLOCK DIAGRAM
RF AMPRF AGC & EQIC1
BPF P-P
PEAK &
BOTTOM
ABCD AMP
IV AMP
IV AMP
CVB
AMP TEMP
VICCONVERROR AMP FOCUS
AT
AMPBPF
TRACKING
ERROR AMP
SERIAL
PARALLEL
DECODER BALANCE E-F
FILTER
PLL
DECODER ACIRC
EFM
MEMORY RESISTANT
SHOCK
CONTROLLER DYNAMIC RAM
ATRAC/ATRAC3
DECODER
DIGITAL
FILTER
CONVERTERD/APOST FILTER
CONTROL MONITOR
ANALOG
MUX
ADIP
DEMODULATOR
DECODER
SPINDLE
SERVO
GENERATOR PWM APCDSP SERVO CONVERTER A/D
CLOCK
GENERATOR AUTO
SEQUENCERI/F CPU PROCESSOR SUBCODEIC7
MECHA MI-COM
CH2 DRIVER
CH1 DRIVER
DRIVER
CH4
DRIVER
CH3
VREF
DRIVER
CH5IC5
LOE/LIM-SW
LOS/EJE-SW ATRAC/ATRAC3 DECODER DET. REFLECT
APC CB
DAF
EJ IDETECTOR
TRACKING
COIL
FOCUS
COIL
M
LOADING/EJECT/SLED MOTOR
SPINDLE MOTORMTHERMISTER
IC9
256
SW+5V EFM/ACIRC DECODER
SHOCK PROOF MEMORY CONTROLLER DIGITAL SERVO PROCESSOR
DIGITAL SIGNAL PROCESSOR
1M-WORD 4BIT DYNAMIC RAM DIGITAL FILTER. D/A CONVERTER IC2
FOCUS/TRACKING COIL DRIVER
SPINDLE/SLED MOTOR DRIVER IC4
LOADING/EJECT MOTOR DRIVER
REG. A3.3V IC6
A. 8V SW8BIT
Q8
IC11 IC10
2.5V
REG. IC3AUDIO I/F DIGITAL
Q1,2
5ch BTL
DRIVER
Q4 RF AMP
Q3DSP
LPF
IC8
Q7
Q5,6,9
1
2
4
5
6
7
8
9
3
15
14 I
J
A
B
C
D
E
F
11
12
22
23
25
41
42
19APC
APCREF
EQADJ
3TADJ
WBLADJ
FZC
RF
AUX1
AUX2
PEAK
BOTTOM
ABCD
FE
VC
SWDT
SCLK
XLAT
FOCONT
114
113
84
85
77
76
112
111SPFD
SPRD
FFDR
FRDR
TFDR
TRDR
SFDR
SRDR
25
28
5
15
21
20 MNT0
MNT1
MNT2
MNT3
XINT
SQSY
SENS
SRDT
SCLK
SWDT
XLAT
XRST44
45
46
62
18
20
19
17
16FZC
XINT
SQSY
SENS
SRDT
SCLK
SWDT
XLAT
XRST
12
56
23
11
15
13
14
43
36
59
60LDON
SDMUTE
LIMIT SW
P-ON
AMUTE
MSDA
MSCL
MSTOP
MRST
TYPE 1
TYPE 2
33
7
8 HOT
ESDA
ESCL
20
19
17
16
30
29
23
22
26
25
24 TRK+
TRK-
FCS+
FCS-
LOAD/SLED+
EJECT/SLED-
SPDL+
SPDL-
VC
VREF0
VCC2
VCC1 10
11
12
13
7
6
8
9
28
27
3
14TFDR
TRDR
FFDR
FRDR
LOAD/SFDR
EJECT/SRDR
SPFD
SPRD
REG IN
REG OUT
ENREG1
11
9
14
13
20
19
15
18
5
6
2
21
7
8DOUT
L-CH
R-CH
MRST
MSTOP
MSCL (IIC BUS)
MSDA
AMUTE
BU5V
S5V
S5V
LOE/LIM-SW
LOS/EJE-SW
LOAD
EJECT 36
30 29 31 34 35 37 33 38
47
46 48
40
1028 26 32
17
18
20 27
16
41
40
MORF RFO
AUX 1
FOCONT
XSTBYADFG
22.579MHz 6
7
8
35
16
14
13
10
9
11 104
105
106
107
102
84
93
80
81
82
83
67
73
72
71
70 85
92
915
11 13 3
1
122
106
48.388MHz
MUTE 1 MUTE 2
1 2
MUTE 336CH1,2 CH3
CH4
21 67
JITTER
RECORD IN
VC
TE
SEVC
VC VC
VC
PD
LD
STBY
TO CH5 OP
S+B
SW+5V S5V
+3.3V6 5
BU+5V1.2Vrms
1kHz 0dB
SW+5V
TO SERVO DRIVERBU+5V
ILCC
LDON
AUDIO +BDAVDD
SW+5VA8V 12 34
+2.5V
MOTOR ASSY DPU1
OPTICAL PICKUP BLOCK
MOTOR BLOCKMD UNIT
BUFFER
Page 2
3
Ref.No. Component name Application/Function Operation/Condition/Compatibility
RF amplifier(pits and groove selector type, AGC, EQ), Gain selector
type I-V amplifier, Amplification of the light intensity signal output,
IC1 CXA2523AR RF amplifier for MD Peak hold output, Bottom hold output, FE output, TE output, SE
output, ADIP binary output, VREF output, APC PD amplifier and
FZC formation comparator.
EFM decoding, EFM digital PLL, ACIRC decoding, auto link
IC2 CXD2667R Digital signal processor for MDprocessing, ADIP decoding, Digital ser vos(focusing, tracking, sled,
spindle CLV), ATRAC/ATRAC3 decoding, 1 bit D/A converter,
Analogue post filter and 4M(1Mx4) DRAM built in.
IC3 S-817A25ANB +2.5V AVR Power supply for IC2 internal logic circuits.
IC4 LA6572 5 Ch BTL dr iverFocusing coil, tracking coil, spindle motor and sled motor driver, disc
loading and eject operation.
IC5 NJM4580M1 Low pass filter 2nd low pass filter for audio signals.
IC6 LP2982-3.3 A.3.3V AVR Power supply for DAC and LPF operational reference voltage.
IC7 TC74HCT7007AF Buffer Buffer and logic level conversion from IC1,2 to IC8.
IC8780076YGK-R11
Mecha.MI-COM. Servo control, memory control, system control and interfacing.
(X33-3160-00)
IC8780076YGK-R14
Mecha.MI-COM.Servo control, memory control, system control and interfacing.
(X33-3180-00) Adapted to MD Group.
IC9 W05-0906-00 EEPROM Servo coefficients and servo adjustment data backup memory
IC10 TC7WH126FU 3-State bufferWhen 1, 7 pin goes Hi, Sled ser vo operation is selected.
When 1, 7 pin goes Lo, IC10's outputs is Hi-Z operation.
IC11 TC7WH126FU 3-State bufferWhen 1, 7 pin goes Hi, Loading/Eject operation is selected.
When 1, 7 pin goes Lo, IC11's outputs is Hi-Z operation.
Q12SA1362(Y) or
APC(Auto Power Control) LD power control
2SB1295
Q2DTA114EUA or
LD SWWhen Laser OFF mode is selected, Q2's base goes Lo, and Q1 is
KRA302 or UN5111 tur ned off.
Q3 2SC4116(Y) Disc refrection detect SW On when focusing point is passed during upward search.
Q4 MCH6101 D.3.3V AVR driverWhen Loading/Eject operation or MD source is selected, Q4's output
is supplying D.3.3V to IC1-3, IC10 and IC11.
Q5 DTA143XUA
When SW5V SW is turned on, Q5 and Q6 are tur ned on, and A.+8V
Q6DTC143EUA or A.8V SW
is supplying to A.3.3V AVR and low pass filter circuit.
KRC401
KTA2014(Y,GR) or
When MD source is selected, P-ON output goes Lo, and BU5V is
Q7 2SA1576A or SW5V SW
supplying to microprocessor peripheral circuits and A.8V SW.
2SB1218A
Q8DTC143EUA or
IC10 OUTPUT Hi-Z SWWhen Loading/Eject operation is selected, Q8's base goes Hi, and
KRC401 IC10's outputs is Hi-Z operation.
Q9DTC143EUA or
A.8V SWWhen Loading/Eject operation is selected, Q9's base goes Hi, and
KRC401 A.+8V is supplying to A.3.3V AVR and low pass filter circuit.
X92-4110-0x/4570-0x
MD UNIT(X33-3160/3180-00)
COMPONENT DESCRIPTION
