DOWNLOAD Sony HCD-LV80 / LBT-LV80 Service Manual ↓ Size: 8.98 MB | Pages: 91 in PDF or view online for FREE

Model
HCD-LV80 LBT-LV80
Pages
91
Size
8.98 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-lv80-lbt-lv80.pdf
Date
PREV: Sony MHC-DX8 (serv.man2) Service Manual

Sony HCD-LV80 / LBT-LV80 Service Manual ▷ View online

HCD-LV80
21
21
IC611
R CH
HP101
PB HEAD
(DECK A)
L
R
RV311
PLAYBACK
LEVEL
DECK A
IC601
R CH
L
R
RV301
PLAYBACK
LEVEL
DECK B
3
1
IC602
4
REC/PB
EQOUT
REC BIAS
BIAS OSC
T621, Q621, 622
ERASE HEAD
ERASE BIAS
46
48
B IN
A IN
16
PB-A/B
EQIN
38
36
RV301
REC LEVEL
39
RECOUT
BIAS SW
D
M
70
120
DOLBY
TYPE B
+7.5V
Q623
LIN
43
PB
24
18
20
22
40
25
PB OUT
LM ON/ 
OFF
BIAS ON/OFF
RM ON/OFF
  ALC ON/OFF
TC PB L
TC REC L
PB A/B
NORM/HIGH
REC/PB/PASS
BIAS ON/OFF
RM ON/OFF
15
ALC ON/OFF
RELAY
09
B
MAIN (1/2), (2/2)
SECTION
LM ON/OFF
NORM/
HIGH
PAS
DOL
P
R
REC/PB HEAD
(DECK B)
X
DOLBY NR
   IC301
DOLBY NR
HRPE101
RV341
REC
BIAS
32
23
NR ON/
OFF
NR ON/OFF
17
S1004
A CrO
2
 
S1008
B CrO
2
 
19
A 120/70 B NORM/CROM/
METAL
M
CAP MOTOR
 CONTROL
  Q336-343
SPEED
CONTROL
Q1001
SWITCH
Q335
RV1001
HIGH
SPEED
RV1002 
NORMAL
SPEED
M1
CAPSTAN
MOTOR
CAPM CNT2
CAP M H / L
CAPM CNT1
REEL
DETECT
IC1001
A SHUT
B SHUT
REEL
DETECT
IC1002
S1001 (A PLAY)
+5V
S1002 (B PLAY)
A PLAY
B PLAY
A HALF
B HALF/REC A/REC B
S1003
(A HALF)
+5V
+5V
S1005
(REC A)
S1006
(B HALF)
S1009
(REC B)
• R CH : Same as L ch
• SIGNAL PATH
          : PB (DECK A)   
          : PB (DECK B)
          : REC (DECK B)
R CH
CN301
1
3
28 27
26
MS
MS OUT
B TRIG
A TRIG
TRIGGER
 MOTOR
CONTROL
Q331-334
  A DECK/
  B DECK
PLUNGER
•   PLUNGER SOLENOID is supplied 
    as the MECHANICAL BLOCK ASSY.
31, 33
(Page 22, 23)
– DECK SECTION –
HCD-LV80
22
22
RESET
IC801
SPEANA
MD OUT
J701
L-CH SIG
BBA2
BUS OUT2
REC B2
REC A2
BBB2
VD OUT
6
1
VIDEO 2
IN
IN1
IN3
J804
10
2
3
5
C
B
A
VIDEO
IN
J702
46
45
28
X
12
14
V1, AU
(L IN)
X1
X0
J701
13
10
9
B
A
V2, AU,
L-CH IN
J804
09
46
45
IC181 SELECTOR
IC191
AV SWITCH
PHONO
(L IN)
J701
VIDEO
SECTION
TC PB L
MD (L IN)
69
68
66
IN D2
IN B2
IN A2
IC101
SOUND PROCESSOR 1
IC601
PHONO AMP
65
2
67
IN C2
MIC IN
IN E2
64 IN F2
MUTE
SWITCH
Q804
MUTE
SWITCH
Q803
RESET
SWITCH
Q802
D807
MAIN CONTROL
IC501 (1/2)
6
3
LINE-MUTE
F-RELAY
7
28
34
38
47
45
DBFB-H/L
V-MUTE
SW-MODE
493-LAT
493-DATA
FUNC-SEL1
22
AC-CUT
46
FUNC-SEL0
48
493-MUTE
RESET
7
28
34
38
47
45
46
48
48
47
38
34
37
BUF IN2
SWITCH
Q115
7
SWITCH
Q111
SWITCH
Q112
57
36
39
38
58
L+R
30
MUTE
SWITCH
Q113
VIDEO
OUT
J702
TC REC L
DECK 
SECTION
POWER 
SECTION
MIC-SIG
ST-L
CD-L
J701
B
(Page 21)
M
(Page 24)
Q
(Page 25)
DECK 
SECTION
B
(Page 21)
POWER 
SECTION
E
(Page 25)
DISPLAY 
SECTION
D
(Page 26)
TC REC L
8
IN4
VCD VIDEO
3
1
DISPLAY 
SECTION
F
(Page 26)
DBFB
F-RELAY
POWER 
SECTION
G
(Page 25)
VIDEO 
SECTION
O
(Page 24)
• R CH: Same as L ch
• SIGNAL PATH
            : FM
            : CD
            : PB
            : REC
            : VIDEO/MD
            : VIDEO
FM/AM TUNER
TUNER UNIT IS
SUPPLED AS THE
ASSEMBLED
BLOCK
33
32
34
CLOCK
DATA
LATCH
12
RESET
RESET
SWITCH
Q801
D805
+5v
– MAIN (1/2) SECTION –
HCD-LV80
23
23
MAIN CONTROL
IC501 (2/2)
1
27
93
42
43
18
29
30
81
80
84
82
83
86
85
87
88
90
89
100
91
1
27
93
42
43
STK-POWER
PROTECT
FL OFF
STBY RELAY
HP MUTE
18
29
30
WAKE UP
IIC-CLK
IIC-DATA
93
43
42
1
27
29
30
18
POWER
ECO
STK POWER
PROTECT
HP MUTE
DATA
CLOCK
WAKE UP
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, 17V
M901
2
Q931
SWITCH
Q932
SWITCH
+7V
REG
1
3
ST A-7V
2
3
–7V
REG
IC951
UN–12V
Q903
SWITCH
Q904
SWITCH
1
3
+7V
REG
IC901
UN+12V
2
Q911
SWITCH
Q912
SWITCH
DETECTOR
Q905
TC–7V
–7V
LED-7V
ST A+7V
TC+7V
+7
LED+7V
(LED+7V)
1
3
+5V
REG
IC911
1
3
+5V
REG
IC921
LED 5V
EVER +5V
D+5V UNSW
2
Q911
SWITCH
Q912
SWITCH
5V
AU D+5V
Q913
SWITCH
D+5V (SW)
A+5V (SW)
EVER +5V
(CD D+5V SW)
(CD A+5V SW)
(D+5V SW)
5
Q914
SWITCH
POWER 
SECTION
POWER
SECTION
I
DISPLAY
SECTION
J
72
69
75
73
74
77
76
78
79
59
63
61
65
68
50
49
52
51
53
54
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
XRST
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
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
TRAY.SENS
X-RST
TBL.R
TBL.L
UP SW
LED
STEREO
ST-MUTE
ST-CE
TUNED
ST-DOUT
ST-DIN
ST-CLK
FAN DET
I
2
C CLK
I
2
C DATA
29
30
HP.SW
POWER
SECTION
H
BD
SECTION
C
DECK
SECTION
B
X501
32.768kHz
X502
16MHz
LX7
L
09
(Page 25)
VIDEO
SECTION
P
(Page 24)
VIDEO
SECTION
N
(Page 24)
(Page 20)
(Page 21)
(Page 25)
(Page 26)
(Page 25)
FM/AM TUNER
TUNER UNIT IS
SUPPLED AS THE
ASSEMBLED
BLOCK
• R CH : Same as L ch
Q902
SWITCH
– MAIN (2/2) SECTION –
HCD-LV80
24
24
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
LPH
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 (1/2)
SECTION
(Page 22)
N
MAIN (2/2)
SECTION
(Page 23)
O
MAIN (1/2)
SECTION
(Page 22)
P
MAIN (2/2)
SECTION
(Page 23)
I
2
C.DATA
I
2
C.CLK
– VIDEO SECTION –
Page of 91
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