Read Sony MEX-DV900 / MEX-DV90EE Service Manual online
MEX-DV90EE/DV900
MEX-DV90EE/DV900
19
19
5-1. BLOCK DIAGRAM - SERVO/VIDEO Section -
SECTION 5
DIAGRAMS
(Page 20)
(Page 20)
DVD PROCESSOR
IC4
SD-RAM
IC10
OPTICAL PICK-UP BLOCK
KHS-360A
RF+
DQ0 – DQ15
BA0
20
D/A CONVERTER
IC6
VO1+
35
VO1–
34
VO2–
31
VO2+
32
VO3+
29
VO3–
28
VO4+
26
VO4–
25
U1
10
V1
6
W1
2
HU+
14
HU–
15
HV+
16
HV–
17
HW+
18
HW–
19
HB
13
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
IC1
A0 – A11
X1
27MHz
RF–
A
B
C
D
D
E
F
PD
LIMIT SWITCH
GSW
LD (DVD)
AUTOMATIC POWER
CONTROL (FOR DVD)
Q5
LD (CD)
VC
MSW
VR (DVD)
FCS+
FCS–
FCS–
TRK+
TRK–
TRK–
SLED MOTOR A+
SLED MOTOR A–
SLED MOTOR A–
SLED MOTOR B+
SLED MOTOR B–
SLED MOTOR B–
COIL U
U2
11
COIL V
COIL W
HALL U+ (H1+)
HALL U– (H1–)
HALL V+ (H2+)
HALL V+ (H2+)
HALL V– (H2–)
HALL W+ (H3+)
HALL W– (H3–)
HALL_BAIS–
AUTOMATIC POWER
CONTROL (FOR CD)
Q3
Q12
Q11
VC
DVD ON SWITCH
Q4
VR (CD)
CD ON SWITCH
Q2
Q1
V2
7
W2
3
42
IN1
238 FO_DRV
43
IN2
231 TR_DRV
44
IN3
237 STA
45
IN4
236 STB
46
INSP
234 SP_DRV
24
STBY
244 DRV_XSTBY
47
FG
241
DUPRD1
246 FG
193 RFP
194
134
RFN
196 A
198 B
201 C
203 D
206 E
208 F
198 B
201 C
203 D
206 E
208 F
215 DVD_LD
214 CD_LD
213 DVD_MD
212 CD_MD
212 CD_MD
137 HOME
209 VC
222 CD_DVD
221 OP_GAIN
23 – 26,
29 – 34, 22, 35
120, 118, 115, 112,
108, 105, 102, 100
108, 105, 102, 100
98, 101, 104, 106,
110, 114, 116, 119
110, 114, 116, 119
58, 57, 55, 54, 52,
49, 47, 45, 26, 24,
49, 47, 45, 26, 24,
22, 19, 17 – 15, 13,
14, 43, 40, 37, 29
RAMDAT0 – RAMDAT15
RAMADD0 – RAMADD11
77, 75, 72, 70,
69, 71, 73, 76,
69, 71, 73, 76,
79, 83, 81, 85
2, 4, 5, 7, 8, 10,
11, 13, 42, 44, 45,
47, 48, 50, 51, 53
87
RAMBA0
BA1
21
86
RAMCS0
CLK
38
96
PCLK
CKE
37
64
RAMCKE
CS
19
89
RAMCS1
RAS
18
90
RAMRAS#
CAS
17
91
RAMCAS#
WE
16
93
RAMWE#
DQMH
39
94
RAMDQM
DQML
15
FLASH MEMORY
IC11
DQ0 – DQ14,
DQ15/A-1
WE
11
A0 – A20
25 – 18, 8 – 1,
48, 17, 16, 9, 10
MEMDAT0 – MEMDAT15
MEMADD0 – MEMADD20
29, 31, 33, 35, 38,
40, 42, 44, 30, 32, 34,
36, 39, 41, 43, 45
51, 46, 42, 36, 33,
28, 25, 20, 48, 44, 39,
35, 31, 27, 23, 18
32
MEMWR#
OE
28
53
MEMRD#
26
56
MEMCS0#
CE
12
157
RESET#
D+3.3V
RST
5
6
2
7
3
1
MEMADD0
MEMADD1
SWITCHING
IC9
35 MSTR-TX
40 M_RESET
33 EJECT
37 LOAD
47 DSW
242
DUPTD1
36 MSTR-RX
248
EN
39 M_CTS
247
REQ
38 M_RTS
LOADING
MOTOR DRIVE
IC102
+5.5V
REGULATOR
IC103
D105
51 A_MUTE
50 Z_MUTE
B/U B+
VCC
M1
(LOADING)
SW1
(CHUCKING END)
SW2
(SELF)
SW3
(DISC IN)
M
49 SELFSW
48 INSW
160
159
XIN
XO
SYSTEM CONTROLLER
IC503 (1/3)
AMCLK
129
AOUT0
5 SCK
6 DATA
132
ABCLK
7 BCK
131
ALRCLK
8 LRCK
125
IDGPCIO0
4 MD
124
ICGPCIO0
3 MC
130
AIN2
52 VMUTE_F
138
AMUTE
181
DAC6 (CVBS)
2 MS
15
VOL
16
ZERO2
14
VOR
R-CH
VIDEO AMP
IC701
PJ701
4
1
VIN
2
VOUT
MUTE
A
FL
B
A_MUTE
VIDEO OUT
: DVD/CD PLAY (AUDIO)
: DVD/CD PLAY (VIDEO)
SIGNAL PATH
R-ch is omitted due to same as L-ch.
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