DOWNLOAD Sony HCD-VR50 / HCD-VR50XR / HCD-VR70 / LBT-VR50 / LBT-VR50R Service Manual ↓ Size: 9.59 MB | Pages: 98 in PDF or view online for FREE

Model
HCD-VR50 HCD-VR50XR HCD-VR70 LBT-VR50 LBT-VR50R
Pages
98
Size
9.59 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-vr50-hcd-vr50xr-hcd-vr70-lbt-vr50-lbt-vr50r.pdf
Date
PREV: Sony HCD-VX90AV / MHC-VX90AV Service Manual

Sony HCD-VR50 / HCD-VR50XR / HCD-VR70 / LBT-VR50 / LBT-VR50R Service Manual ▷ View online

HCD-VR50/VR70
– 25 –
– 26 –
– MAIN (2/2) SECTION –
30
29
I
2
C-CLK
I
2
C-DATA
VIDEO
SECTION
N
MAIN CONTROL
IC501 (2/2)
1
27
93
18
29
30
81
80
84
82
83
86
85
87
88
90
89
100
91
1
27
93
STK-POWER
PROTECT
HP MUTE
18
29
30
WAKE UP
IIC-CLK
IIC-DATA
93
1
27
29
30
18
STK POWER
PROTECT
HP MUTE
DATA
CLOCK
WAKE UP
FAN DETECTOR
D405-409
IC933
M+7V (UNSW)
PL A+10V
7V
ST +10V
TC MOTOR+12V
FAN
1
3
1
3
+10V
REG
+12V
REG
IC931
IC932
FAN SWITCH
Q961, 963
+UNREG, 12V
FAN901
2
Q931
SWITCH
Q932
SWITCH
+7V
REG
1
3
A–7.5V
–V BIAS
2
3
–7V
REG
IC951
UN–10V
Q931
SWITCH
Q932
SWITCH
Q932
SWITCH
1
3
+7V
REG
IC901
UN+10V
2
Q901
SWITCH
Q902
SWITCH
2
DETECTOR
Q905
TC–7V
–7V
–7
(LED–7V)
A+7.5V
+V BIAS
TC–7V
–7V
–7
(LED+7V)
1
3
+5V
REG
IC911
LED 5V
LED 5V
D+5V UNSW
2
Q901
SWITCH
Q902
SWITCH
5V
AU D+5V
Q913
SWITCH
D+5V (SW)
A+5V (SW)
EVER +5V
Q921
SWITCH
CD D+5V SW
CD A+5V SW
(CD D+5V SW)
(CD A+5V SW)
(D+5V SW)
1
3
+5V
REG
IC921
5
Q914
SWITCH
POWER 
SECTION
POWER
SECTION
I
DISPLAY
SECTION
J
72
69
75
73
74
77
76
78
79
63
56
SENS
SENS
61
65
68
50
49
52
51
53
54
59
XRST
X-RST
55
BIAS
REC-MUTE
ALC
EQ-H/N
PB-A/B
A-PLAY-SW
B-PLAY-SW
A-HALF
B-HALF
A-SHUT
B-SHUT
TC-RELAY
A-TRG
B-TRG
CAP-M-H/L
CAPM-CNT 2
CAPM-CNT 1
TC-MUTE
AMS IN
R/PB/PAS
NR-ON/OFF
DISC-SENS
TBL-R
TBL-L
ENC 3/UP-SW
ENC 2/DISC-LED
STEREO
ST-MUTE
ST-CE
TUNED
ST-DOUT
ST-DIN
ST-CLK
36
H/P IN
5
CD-POWER
2
POWER
10
XC-IN
11
XC-OUT
13
X-OUT
15
X-IN
IC781
OPTIC
TRANSMITTING
D.OUT
BIAS ON/OFF
RM ON/OFF
ALC ON/OFF
NORM/HIGH
PB A/B
A PLAY
B PLAY
A-HALF
B-HALF/REC A/REC B
A SHUT
B SHUT
RELAY
A TRG
B TRG
CAP-M-H/L
CAPM-CNT 2
CAPM-CNT 1
LM ON/OFF
MS OUT
REC/PB/PASS
NR ON/OFF
DISC.SENS
TBL.R
TBL.L
ENC 3
ENC 2
STEREO
ST-MUTE
ST-CE
TUNED
ST-DOUT
ST-DIN
ST-CLK
HP.SW
POWER
SECTION
H
BD (CD)
SECTION
C
VIDEO
SECTION
P
(Page 28)
DECK
SECTION
B
X501
32.768kHz
X502
16MHz
L
09
(Page 30)
(Page 20)
(Page 22)
(Page 29)
(Page 28)
(Page 31)
(Page 29)
FM/AM TUNER
TUNER UNIT IS
SUPPLED AS THE
ASSEMBLED
BLOCK
• R CH : Same as L ch
HCD-VR50/VR70
– 27 –
– 28 –
– VIDEO SECTION –
SYSTEM
SELECT
S501
65
15
13
09
30
     I
2
C.DATA
29
     I
2
C.CLK
     XRESET
     TEST LED
     NT/PAL
     XOUT
     +5V
     D502
     A7
     DF LATCH
     SHARPNESS
     XIN
24
45
BUS
DSP DATA
DSP LATCH
SENSE CLK
DSP CLK
SENSE
DSP MUTE
CTRL1(L:DOUBLE)
CTRL2
LDON
SCOR
SUBQ DATA
22
34
X501
NTSC
AUTO
PAL
  10MHz
X503
27MHz
VIDEO CD CONTROL
IC502
LEVEL SHIFT
IC504
LEVEL SHIFT
IC501
D-RAM
IC507
ROM
IC506
AMP
IC101
OUTPUT AMP
IC401
VIDEO/CD DECODER
IC505
DIGITAL FILTER & D/A CONVERTER
IC509
DATA1O
DATA1I
CLK1
CL680 INT
CL680 HSEL
CL680 HRDY
680 RESET
DATA0
DATAI
CLK1
INT
HSEL
HRDY
RESET
ADATA
BCLK
LRCK
C2P0
DATA
XLT
CLK
SENS
SCLK
MUTE
CTRL1
LDON
SCOR
SUBQ
SQCK
XRST
MCK
A
 CD
SECTION
(Page 20)
• R CH: Same as L ch
• SIGNAL PATH
            : CD
            : CHROMA
            :Y
            : VIDEO
SUBQ CLK
DEVICE RESET
23
93
73
12
3
4
5
1
2
10
11
27
28
18
37
36
77
20
21
33
32
31
69
HD-OUT
6
CD-C2P0
CD-LRCK
CD-BCK
HRDY
HD-IN
HCK
HINT
HSEL
RESET
PGIO2/VSYNC/CSYNC
INVERTER
Q502
CD-DATA
MWE
WE
RAS
UCAS
LCAS
A0
A8
DQ1
DQ16
RASO
CAS
MCE
MD0
I   
MD15
MA0
I   
MA10
      C-OUT
      Y-OUT
75
      DA-DATA
      DA-BCK 111
      VCK-IN 106
      DA-XCLK 86
110
      DA-LRCK 108
112
119
117
113
114
121
93
60
3
5
4
13 14 28 29
38 42
40
10
8
4
13
5
1
1
3
8
12
6
11
1
3
7
5
1
3
19
17
DATA0
CLK1
8
7
10
21 20
4
11
18
MODE
PLM
D/A
CONV
CLOCK
DIVIDER
9
24
1
16 - 19   22 - 26
2 - 10    31 - 39
O0
O7
A11
A17
A0
A10
CE
13 - 15   17 - 21
25  4  28  29  3  2  14  10    12 - 5  27  26  23     
58 - 44     
10 - 29      
22
37
MUTE
Q454
BUFFER
Q301
MUTE
Q453
MIX AMP
Q308,310
BUFFER
Q303,304
TRAP
Q302,306,307
1
3
2
4
14
VCD VIDEO
J301
VIDEO
FREQUENCY
CT503
CD-L
(L - CH)
R-CH
X-RST
27MHz
384FS
768FS
S VIDEO 
   OUT
DATAI
DATAO
CLK1
HRDY
INT
HSEL
RST
CLK1, DATA0
(XTAL 33.8MHz)
27MHz
RSTB
3.3V REG
Q531
+3.3V
D5V
M
MAIN
SECTION (1/2)
(Page 23)
N
MAIN
SECTION (2/2)
(Page 25)
O
MAIN
SECTION (1/2)
(Page 23)
P
MAIN
SECTION (2/2)
(Page 25)
I
2
C.DATA
I
2
C.CLK
HCD-VR50/VR70
– POWER SECTION –
– 29 –
– 30 –
+VL
-VL
RECT
D832
F-RELAY
L-CH IN
EVER +5V
MIC 2
MIC 1
MIC VOLUME
RV850
MIC AMP
IC850 (1/2)
8
2
LPF 1 OUT
LPF 2 OUT
ECHO CONTROL
IC851
11
9
LPF 2 IN
OP 2 IN
10
OP 2 OUT
1
LPF 1 IN
MIC LEVEL
RV851
MIC AMP
IC850 (2/2)
STK-MUTE
15
13
12
8
THERMAL
SENSOR
5
6
VOLUME
CONTROL
22
POWER AMP & VOLUME CONTROL
IC801
VOLUME
CONTROL
D802, 852
THERMAL
SENSOR
Q831-832
L-CH THERMAL
PROTECT SWITCH
Q801
MUTE
CONTROL
Q834
MUTE
SWITCH
Q803
HEAD PHONE
MUTE
Q833
MUTE
DRIVE
Q804
HP-MUTE
PROTECT
09
D804
MIC-SIG
J803
TM401
PHONES
L
R
FRONT
SPEAKER
RELAY
DRIVER
Q401, 402
R-CH
RY401
SWITCH
Q904
–35V REG
Q903
VF (–35V)
VF
VF
RECT
D833-836
+UNREG. 12V
UN +10V
UN –10V
RECT
D841-844
AC-H
POWER
TRANSFORMER
T951
VOLTAGE
SELECTOR
VS901
AC
IN
MAIN (1/2)
SECTION
G
(Page 24)
MAIN (2/2)
SECTION
I
(Page 25)
MIC-SIG
HP.SW
DISPLAY 
SECTION
K
(Page 31)
MAIN (1/2)
SECTION
C
(Page 23)
MAIN (2/2)
SECTION
H
(Page 25)
J801
MAIN (1/2)
SECTION
E
(Page 24)
MAIN (2/2)
SECTION
L
(Page 26)
• SIGNAL PATH
            : FM
• R CH : Same as L ch
PROTECT
SWITCH
Q439
LATCH
DRIVER
Q437
PROTECT
SWITCH
Q431
PROTECT
DC AMP
Q433-434
LATCH
DRIVER
Q432
+VH
-VH
RECT
D831
HCD-VR50/VR70
– DISPLAY SECTION –
– 31 –
– 32 –
6
4
3
5
79
78
73
22
70
X601
12.5MHz
72
13
12
11
14
16
17
19
20
21
18
17
16
43
28
27
LINE NF
REC LEVEL
OUTPUT
DISPLAY CONTROL (FOR MIC)
IC603
REC LEVEL
D671 – D675
F06
F05
F04
F02
F01
RESET
DATA
CLOCK
WAKE UP
A –7V
A +7V
MIC–SIG
SPE–ANA
09
MAIN (1/2) SECTION
MAIN (2/2) SECTION
POWER SECTION
MAIN 1 SECTION 
LINE IN
REC IN
REC NF
BPF 4
ALL BAND
BPF 3
BPF 2
I
2
C DATA
RESET
I
2
C CLK
WAKE UP
X IN
DISPLAY CONTROL
IC601
X OUT
BPF 1
BPF 0
45
67
SEG-1
FLUORESCENT INDICATOR TUBE
FL601
23
29
VF
40, 42
GR-3
14, 2
DRIVER
74
75
77
9
10
3
4
5
14
15
13
LED DRIVER
KEY MATRIX
ROTARY
ENCODER
D601 – D603
7
80
D604 – D607
Q601 – Q603
Q605 – Q607
Q608 – Q610
D611 – D612, D615, D616, D618 – D621, 
D623 – D627, D635 – D638
D700
D631, D632
11
15
LED POWER
SWITCH
1
REMOTE
CONTROL
RECIEVE
IC602
S701
VOLUME
2
8
ROTARY
ENCODER
S702
JOG
S691
6
OPEN
SIRCS
JOG A
JOG B
VOLUME A
VOLUME B
KEY 0
KEY 4
LED SCK
LED LATCH
LED DAT
DAILY LED
REC LED
LED-EC0
GR-1
GR-15
GR-16
LED SEL
D-SW
1
5
7
9
20
22
•
•
P3
P5
P7
P11
P12
P14
•
•
•
17
19
P1
P2
CLK
STB
DATA
SERIAL
PARALLEL
CONVERTER
IC604
D604 – D607
•
F
J
K
D
(Page 30)
(Page 25)
(Page 24)
(Page 24)
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