Sony MV-900SDS / XVM-R90D Service Manual ▷ View online
XVM-R90D
18
18
XVM-R90D
6-2. BLOCK DIAGRAM – AUDIO Section –
(Page 17)
(Page 20)
(Page 17)
• SIGNAL PATH
: DVD (AUDIO)
: AUX INPUT (AUDIO)
• R-ch is omitted due to same as L-ch.
IR TRANSMITTER
MODULATOR
IC904
AUDIO INPUT
SELECT
IC704
BPF
FL201
MUTING
Q708
LOW-PASS FILTER
Q208, 209
BUFFER
Q205
BUFFER
Q206
LEVEL SHIFT
Q210 – 213
STANDBY
SWITCH
Q710, 711
DISCHARGE SWITCH
Q714, 715
MUTING
SWITCH
SWITCH
Q318
MUTING
CONTROL
Q316, 317
DIFFERENTIAL
AMP
IC703
R-CH
J701 (1/2)
R
AUDIO
INPUT
L
R-CH
R-CH
FM+5V
R-CH
D317
D204
Q204
Q207
Q202
Q202, 204
RF LEVEL
SWITCHING
J702 (1/2)
R
POWER ON
L
FM STEREO
MODULATOR
IC201
R-CH
5
MPX ADJ
11
RF OUT
17
DATA
16
CLK
15
CE
18
ATT
9 VTIN
7 PD
22 LIN
64
AMP ON
15
DA (IN)-BE
49
FM1
50
FM2
4
FM-DATA
3
FM-CLK
7
S-SDA
6
S-SCL
5
FM-CE
POWER ON
MUTING
Q319, 320
16
DA (OUT)-BE
17
CK-BE
18
CS-BE
DA-BE
CK-BE
CS-BE
1 RIN
POWER AMP
IC707
LED DRIVE
Q902
LINE AMP
IC708
MUTING
Q713
XOUT
XIN
14
13
X201
7.6MHz
SYSTEM CONTROLLER
IC401 (1/3)
R-CH
SP1
(L)
SP2
(R)
R-CH
R-CH
(FM MODULATOR)
B+8V
POWER ON
MUTING
Q321, 322
53
AMUTE
E
AUDIO
OUTPUT
R-CH
L-CH_AU
B
DA-BE, CK-BE,
CS-BE
CS-BE
C
SW1
D
RV900
VCO
8
5
7
ELECTRICAL VOLUME
IC706
D912, 914, 916
(IR TRANSMITTER)
LIN1
CLK
4
DATA
CLK
DATA
CLK
DATA
LOUT1
1
7
VIN1
3 VIN2
2
SW1
VOUT
D911, 913, 915
(IR TRANSMITTER)
R-CH
B+8V
+5V
REGULATOR
IC304
B+ SWITCH
Q323, 324
+
(Page 19)
XVM-R90D
19
19
XVM-R90D
PHASE
COMPARATOR
IC602
WAKE UP
SWITCH
Q401, 403
REMOTE CONTROL
RECEIVER
IC902
TEMPERATURE
SENSOR
IC901
16
1
7
OSD DRIVER
IC405
RGB DECODER
IC501
VR
17 VG
15 BLK
20 HSYNCN
SCLK
2
CSN
3
DATA
OSC OUT
8
OSC IN
18 VB
53
CTRAPOUT
26
R-OUT
21
G-OUT
19
B-OUT
R
G
B
14
R-IN2
15
G-IN2
16
B-IN2
17
YS
18
BLAK
36
POL
BLAK
POL
HD
VD
DATA
CLK
CS
54 CTRAPIN
34
CSYNCOUT
32
HDOUT
31
VDOUT
28
VCOMOUT
35 VDIN
52 YIN
19 YSYNCN
33
12
20
LCD CONTROLLER
IC601
PD
36 VCO1
2 HSYNCIN
5 VDBIN
LTBOX
4
QHSEL
31
JUST
13
UD
3
CPHSEL
57
ZOOM
59
SIDE1
61
JUST
55
LR
58
SIDE2
6
SCL
5
SDA
STV1
26
STV2
23
STH1
24
STH2
54
U/D
21
SYNC-DET
51
V-SCK
43
VD
52
V-SDA
63
SW1
23
N/P
29
CPH1
27
CPH2
25
CPH3
16
CPV
19
OEV1
18
OEV2
17
OEV3
21
OEH
28
L/R
STV1
STV2
STH1
STH2
CPH1
CPH2
CPH3
CPV
OEV1
OEV2
OEV3
OEH
L/R
U/D
VCOM
VCOM
VHG
VDD1
VCC
VB
VEE
VGH +17V
LIQUID CRYSTAL
DISPLAY MODULE
LCD1
VDD +3.3V
VCC +5V
VSS –13V
8 BLACK
14 POL
37 VCO0
46 NP
57 CIN
5 B-Y IN
4 R-Y IN
46 CSYNCIN
V COM AMP
IC802
V COM BIAS
Q803 – 807
BUFFER
Q501
SYNC LOCK
Q505, 506
PAL/NTSC SWITCH
Q504
V-SDA
48
V-SCK
47
HSYNCLOCK
39
VXO-NTSC
63
VXO-PAL
64
SIRCS BUFFER
Q901
LED DRIVE
Q953
EEPROM
IC402
30
MONITOR SW
BLAK
POL
HD
Q601
VD
R
G
B
RED
GREEN
BLUE
OSC
TRAP
20
OSD SCLK
22
OSD CSN
19
OSD DATA
DATA
CLK
CS
RV802
V-COM
RV601
PLL
SYNC
SEPARATOR
Q502, 503
X502
4.43MHz
X501
3.58MHz
Q603
SYSTEM CONTROLLER
IC401 (2/3)
CVBS, Y,
B-Y, R-Y
B-Y, R-Y
A
SW1
D
RESET
F
X2
X1
41
40
KEY IN
27
DISC_LED
12
X401
4.19MHz
S401 – 404
S902, 903
KEY DVD
28
KEY PW/EJ
29
S904 – 907
REM HALT
45
REM IN
47
TEMP
33
SDA
13
SCL
14
KEY HALT
44
D902
D402
S908
(PANEL CLOSE DETECT)
(ON: CLOSE)
DISC IN
LED DRIVE
Q955
LIGHT PW/EJ
11
D901
D900
POWER
EJECT
• SIGNAL PATH
: DVD (VIDEO)
: AUX INPUT (VIDEO)
J701 (2/2)
J702 (2/2)
VIDEO
INPUT
INPUT
VIDEO
OUTPUT
12
VIDEO INPUT SELECT
IC102
VIDEO INPUT
SELECT
IC101
SW2
7
SW3
1 IN1B
16 IN1A
9 IN3B
8 IN3A
14 IN2B
Y
CVBS
B-Y
R-Y
11 IN2A
2
SW1
1
SW1
3
OUT1
6 VIN1
4 VIN2
2
VOUT
6
OUT3
5
OUT2
6-3. BLOCK DIAGRAM – VIDEO, PANEL Section –
(Page 17)
(Page 18)
(Page 20)
XVM-R90D
20
20
XVM-R90D
6-4. BLOCK DIAGRAM – POWER SUPPLY Section –
REGULATOR
CONTROL
Q302, 303
1
9
POWER CONTROL
IC301
B+5V
B+3.6V
E-VOL +8V
B+8V
D305
BATT
F301
D306
D307, 308
D315, 316
OUT1
10 OUT2
11 DT2
VCC
6 DT1
15 SCP
36
RESET
DEAD TIME
Q310
DEAD TIME
Q314
SWITCHING
Q312
LATCH
Q313
SWITCHING
REGULATOR
Q301
+8V
REGULATOR
IC303
+12V
REGULATOR
IC302
IR +8V
+8V
REGULATOR
IC903
VCC +7.5V
VCC
+8V
REGULATOR
IC950
U-COM +3.3V
+3.3V
REGULATOR
IC952
ACCESSORY
DETECT
Q315
RESET SIGNAL
GENERATOR
IC403
46
ACC IN
SWITCHING
REGULATOR
IC306
B+ SWITCH
Q309, 311
B+2.8V
SWITCHING
REGULATOR
IC305
PANEL +5V
+5V
REGULATOR
IC951
REGULATOR
CONTROL
Q305, 306
SWITCHING
REGULATOR
Q304
SWITCHING
REGULATOR
Q855, 856, 859
BACK LIGHT
UNIT
DC/DC
CONVERTER
Q801, 802
SW12V
B+ SWITCH
Q951, 952
B+ SWITCH
Q853, 854
OSC
Q857, 858
5V
VOLTAGE
(DC/DC CONVERTER)
(DC/DC CONVERTER)
DIMMER
Q860, 861
60
DIMMER
8
FAN CONT
48
IR CONT
56
TFT ON
2
PW-ON
31
ACC Y/N
B
A
S301
(POWER SELECT)
1
11
POWER CONTROL
IC850
D852, 853
D950
INVERTER
TRANSFORMER
T850
1IN+
C2
16
2IN+
12
VCC
+
D801
S901
Q402
RESET
D802
D803
D804
VSS –13V
VGH +17V
VCC +5V
VDD +3.3V
3
POWER CONTROL
IC801
DC/DC
CONVERTER
T801
1IN+
7
1OUT
2 RT
RV803
RV801
FREQUENCY
POWER ON
E
RESER
F
SYSTEM CONTROLLER
IC401 (3/3)
IR LED B+
M301
(FAN)
(FAN)
B+SWITCH
Q904, 905
B+SWITCH
Q307, 308
B+ SWITCH
Q325, 326
F950
3
CN301
2
4
BATT
AMP REM
ACC
F850
F801
D903
F951
F302
M
M
DISC SLOT
ILLUMINATION
(Page 19)
(Page 18)
XVM-R90D
21
21
XVM-R90D
•
Note for Printed Wiring Boards and Schematic Diagrams
•
Sircuit Boards Location
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
•
Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
supply from ACC and BATT cords.
•
Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : DVD PLAY
(
under no-signal conditions.
no mark : DVD PLAY
(
) : STANDBY
∗
: Impossible to measure
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Circled numbers refer to waveforms.
•
Signal path.
L
: DVD (VIDEO)
F
: DVD (AUDIO)
J
: DIGITAL OUT
a
: AUX INPUT (VIDEO)
E
: AUX INPUT (AUDIO)
d
: CHECK IN
G
: CHECK OUT
LCD board
FRONT board
KEY board
MAIN board
SERVO board
SW board
JACK (IN) board
JACK (OUT) board
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