Sony DVP-LS755P Service Manual ▷ View online
DVP-LS755P
4-15
4-16
AUDIO AMP
MV-044 (4/5)
MV-044 (AUDIO AMP) SCHEMATIC DIAGRAM
• See page 4-5 for printed wiring board.
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B-
B-
B-
B-
B-
B-
B+
B+
B-
NO MARK:DVD/CD PLAY
0
0.8
0.8
0
-9
0
1.3
1.3
1.3
1.3
0
11.3
10.6
10.6
9.9
0.6
6.6
10.6
10.6
9.9
0
0
6.6
0.6
11.3
11.3
10.6
-9.5
-9
-9.7
-10.3
-10.9
-9.7
5
11.3
5
1.7
2.5
1.8
5
LCH_OUT
EVER+11V
XVOICE
ART-
XA_MUTE
AU+11V
ALT+
P_GND_SPDIF
XLMUTE
ART+
RCH_OUT
P_GND_AUDIO
ALT-
EVER+3.5V
GND
ERAUDIOL
XMAMUTE
AU+5V
KRMOD
ERAUDIOR
SPDIF
SW-10V
MIC
XRMUTE
JL645
JL602
JL646
JL604
JL641
JL643
JL603
JL642
JL644
1SS355TE-17
D604
XX
D605
D603
DAP202K-T-146
D602
DAP202K-T-146
MSD601-RT1
Q603
2SD1938
(F)-ST(TX).SO
Q608
2SD1938
(F)-ST(TX).SO
Q607
MSD601-RT1
Q611
XX
Q614
XX
Q613
R646
XX
10k
R621
4.7k
±0.5%
R601
1k
R653
47k
R625
220k
R619
R663
XX
470
R620
68
R651
R637
4700
4700
XX
R667
2200
R607
5600
R684
R659
XX
R640
470
XX
R664
R631
10k
10k
R622
XX
R635
47k
R630
10k
R624
0
R642
5600
R616
2200
R610
5600
±0.5%
R606
4.7k
±0.5%
R602
XX
R661
R641
470
2200
R608
100k
R638
5600
±0.5%
R605
XX
R650
4.7k
±0.5%
R604
470
R626
R647
XX
XX
R655
10k
R617
R634
4700
4700
1k
R654
XX
R666
0
R668
1k
R656
R660
XX
R623
XX
10k
R628
XX
R662
XX
R657
2200
R609
XX
R669
XX
R658
XX
R648
220
R649
R639
100k
R636
10k
5600
±0.5%
R612
5600
±0.5%
R611
47k
R629
0
R643
R632
10k
R652
4.7k
±0.5%
R603
XX
R665
100k
R618
XX
R683
R633
47k
470
R627
C614
XX
0.01u
C625
XX
C619
XX
C617
C616
220p
220p
C622
0.01u
180p
C604
0.01u
C607
180p
C603
XX
C630
180p
C605
XX
C620
XX
C618
XX
C626
560p
C602
0.01u
C608
C615
220p
220p
180p
C606
560p
C601
C612
50V
1u
XX
C642
16V
47u
C629
XX
C643
16V
47u
C644
XX
C641
16V
47u
C611
16V
C613
220u
220u
XX
C640
50V
1u
C609
16V
47u
C627
16V
47u
C610
16V
47u
C628
C631
XX
Q601
MSB710-RT1
MSB709-RT1
Q616
MSB709-RT1
Q605
Q610
MSB709-RT1
XX
CN604
1
GND
2
AU-10V
3
AU+11V
4
XMIC
5
MIC+ECHO
6
XVOICE
Q609
UN2217-QRS-TX
UN2217-QRS-TX
Q604
XX
R615
4700
R613
XX
R672
R614
4700
4700
IC604
XX
D IN
1
VCC
2
GND
3
IC605
TOTX179
D IN
3
VCC
2
GND
1
CL605
CL604
CL603
XX
Q617
MUN2213T1
Q602
Q606
MUN2213T1
NJM4558M-TE2
IC601
1
2
3
4
5
6
7
8
XX
IC602
1
2
3
4
5
6
7
8
IC603
NJM78L05UA-TE1
OUT
1
GND
2
IN
3
D601
DAN202K-T-146
P_GND_AUDIO
(3/5)
MV-044 BOARD
MV-044 BOARD
(3/5)
(2/5)
MV-044 BOARD
MV-044 BOARD
(5/5)
B+ SWITCH
Q603,616
B+ SWITCH
Q601
MUTE
MUTE
Q602,604,605
MUTE DRIVE
MUTE DRIVE
Q606,609,610
BUFFER
IC601
AUDIO AMP
IC603
+5V REG
OUTPUT
OPTICAL DIGITAL
IC605
DIGITAL OUT
OPTICAL
MV-044 BOARD(2/5)
(2/5)
MV-044 BOARD
B
10
L
3
1
J
12
14
6
K
5
8
9
A
7
H
D
4
2
I
13
G
05
E
C
15
11
F
MV-044 BOARD (4/5)
XX MARK:NO MOUNT
AUDIO
PB
SIGNAL
SIGNAL PATH
10k
COAX
P_GND_SPDIF
MV-044 BOARD(3/5)
MV-044 BOARD(3/5)
DVP-LS755P
4-17
4-18
PS THROUGH
MV-044 (5/5)
MV-044 (PS THROUGH) SCHEMATIC DIAGRAM
• See page 4-5 for printed wiring board.
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
B+
B-
B+
B-
B-
B-
B+
B+
B+
B+
B+
B+
B+
B-
B-
B-
B+
B+
B+
B+
B+
B+
B+
B+
NO MARK:DVD/CD PLAY
3.3
0
-10.9
-10.2
-10.9
3.3
5
3.3
5
1.3
B+
B+
B+
SW+8V
P-CONT
EVER+11V
MTR_GND
EVER+11V_VID
VIDEO-5V
GND
POWER_SW
SW+5V
AU+11V
EVER+3.5V
XX
R782
3300
R776
XX
R786
XX
R780
0
R787
XX
R784
XX
R783
R779
XX
0
R788
XX
R778
XX
R785
3300
R777
0.01u
C790
0.22u
C779
0.22u
C789
0.01u
C771
0.01u
C783
PS771
PS772
JL779
JL771
JL772
JL775
JL774
JL777
JL780
JL776
JL773
JL778
0.01u
C780
0.01u
C782
0.01u
C778
2SD1766-T100-QR
Q772
XX
Q778
XX
Q777
C784
47u
16V
16V
C775
XX
XX
D771
10k
R775
XX
R781
XX
JS771
16V
47u
C776
10P
CN771
1
2
3
4
5
6
7
8
9
10
Q773
UN2111-TX
TK11133CSCL-G
IC774
1
2
3
45
GND
SW+5V
SW-10V
GND
SW-10V
(1A/50V)
(1A/50V)
CONT
VOUT
GND
NOISE
VIN
SW+3.3V
SW+8V
EVER+5V
P-CONT
GND
POWER SW
SW+5V
EVER-10V
EVER+11V
MTR GND
5
7
6
11
9
8
E
10
A
C
2
MV-044 BOARD (5/5)
4
1
XX MARK:NO MOUNT
+3.3V REG
IC774
B
05
F
D
3
12
Q772,773
B+ SWITCH
MV-044 BOARD
(3/5)
MV-044 BOARD
(2/5)
(4/5)
MV-044 BOARD
CN201
(SWITCHING REGULATOR)
(SEE PAGE 4-36)
POWER SUPPLY BLOCK
SW-10V
SW+3.3V
EVER+3.5V
(2/5)
MV-044 BOARD
DVP-LS755P
4-19
4-20
WAVEFORMS
MV-044
•
Waveforms
1
IC102
oh
(DVD play)
500 mV/DIV 100 ns/DIV
1.2 Vp-p
1
IC102
oh
(CD play)
500 mV/DIV 200 ns/DIV
1.1 Vp-p
2
IC102
6
,
7
(DVD play)
500 mV/DIV 100 ns/DIV
1.0 Vp-p
2
IC102
6
,
7
(CD play)
500 mV/DIV 200 ns/DIV
800 mVp-p
3
IC102
qk
, IC201
<x/b
(DVD play)
1.4 Vp-p
3
IC102
qk
, IC201
<x/b
(CD play)
1.4 Vp-p
4
IC102
wa
, IC201
<x/c
(DVD play)
1.4 Vp-p
4
IC102
wa
, IC201
<x/c
(CD play)
1.4 Vp-p
5
IC201
<xzb
,
<xzn
(DVD play)
500 mV/DIV 100 ns/DIV
1.0 Vp-p
5
IC201
<xzb
,
<xzn
(CD play)
500 mV/DIV 200 ns/DIV
800 mVp-p
6
IC201
<z,n
3.6 Vp-p (27 MHz)
7
IC201
<zmc
(COMPONENT OUT: ON)
670 mVp-p (H)
7
IC201
<zmc
(LINE: RGB mode)
670 mVp-p (H)
8
IC201
<zmx
(COMPONENT OUT: ON)
670 mVp-p (H)
8
IC201
<zmx
(LINE: RGB mode)
670 mVp-p (H)
9
IC201
<zm/
(COMPONENT OUT: ON)
950 mVp-p (H)
9
IC201
<zm/
(LINE: RGB mode)
670 mVp-p (H)
0
IC201
<zn,
1.2 Vp-p (H)
qa
IC201
<znn
950 mVp-p (H)
qs
IC201
<znv
800 mVp-p (H)
qd
IC502
ed
2.4 Vp-p (H)
qf
IC502
ea
1.8 Vp-p (H)
qg
IC502
wl
2.0 Vp-p (H)
qh
IC502
wf
(COMPONENT OUT: ON)
2.0 Vp-p (H)
qj
IC502
ws
(COMPONENT OUT: ON)
1.4 Vp-p (H)
qk
IC502
w;
(COMPONENT OUT: ON)
1.4 Vp-p (H)
DVP-LS755P
4-21
ER-027 (EURO AV) PRINTED WIRING BOARD
: Uses unleaded solder.
4-22
EURO AV
ER-027
There are a few cases that the part isn't mounted in this model is printed on this diagram.
JL927
JR919
JR905
JR917
C913
C914
C943
C945
C962
C963
D901
D902
C
A
K
D907
D929
D930
D932 D933
D934
D935
D936
D937
D938
D939
FB907
FB908
FB909
FB910
1
18
19
36
IC901
JL917
JL918
JL919
JL920
JL921
JL922
JL923
JL924
JL925
JL926
JL928
JL929
JL930
JL931
JL932
JL933
JL934
JL935
JL936
JL937
JL938
JL939
JL941
JL942
JL943
JL944
JL945
JL946
JL947
JL948
JL949
JL950
JR901
JR904
JR906
JR907
JR918
JR920
JR902
JR915
JR913
JR911
JR912
L905
C
B
E
Q901
C
B
E
Q902
C
B
E
Q903
C
B
E
Q906
C
B
E
Q907
C
B
E
Q908
C
BE
Q909
R905
R906
R907
R908
R909
R910
R911
R912
R913
R914
R915
R916
R917
R918
R919
R924
R926
R927
R928
R929
R936
R939
R944
R950
R956
R957
R958
R960
JR914
R962
R963
R922
JR910
FB911
R920
R921
R930
R931
R964
R965
R923
JW910
JW914
JW906
JW916
JW911
C901
C902
C903
C905
C907
CN901
CNJ902
JW917
JW904
JW918
JW915
JW905
JW903
JW901
JW907
JW913
JW919
JW909
JW902
JW912
JW908
C906
C904
D
C
B
A
1
2
3
4
5
6
7
05
ER-027 BOARD
1-861-710-
11
(11)
8
21
20
9
10
1
2
21
20
2
6
10
1
5
15
K
K K
K
K
K
K
K
K
K
K
K
A
A
A
A
A
A
LINE (RGB) -TV
ER-027 BOARD
CN901
C-1
D901
B-3
D902
B-3
D907
C-3
D929
B-4
D930
A-3
D932
B-4
D933
B-5
D934
B-6
D935
B-6
D938
B-6
D939
B-3
IC901
C-6
Q901
B-2
Q902
B-3
Q903
C-3
Q906
C-2
Q907
B-2
Q908
A-1
Q909
D-3
IF-117 board
(INTERFACE CONTROL)
(INTERFACE CONTROL)
ER-027 board
(EURO AV)
(EURO AV)
MV-044 board
(RF AMP, SIGNAL PROCESS,
SERVO, MOTOR DRIVE, AVDEC,
VIDEO, AUDIO, PS THROUGH)
(RF AMP, SIGNAL PROCESS,
SERVO, MOTOR DRIVE, AVDEC,
VIDEO, AUDIO, PS THROUGH)
LC-082 board
(FUNCTION SWITCH)
(FUNCTION SWITCH)
MS-214 board
(LOADING MOTOR)
(LOADING MOTOR)
Power supply block
(SWITCHING REGULATOR)
(SWITCHING REGULATOR)
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