DOWNLOAD Sony MHC-V818 Service Manual ↓ Size: 8.82 MB | Pages: 92 in PDF or view online for FREE

Model
MHC-V818
Pages
92
Size
8.82 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
mhc-v818.pdf
Date
PREV: Sony MHC-V818 / SS-V818 Service Manual

Sony MHC-V818 Service Manual ▷ View online

– 27 –
– DECK SECTION –
– 28 –
HCD-V818
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
C
M
70
120
DOLBY
TYPE B
+7.5V
Q623
RIN
44
PB
24
18
20
22
40
25
PB OUT
LM ON/ 
OFF
BIAS ON/OFF
RM ON/OFF
  ALC ON/OFF
PB L
REC L
PB A/B
NORM/HIGH
REC/PB/PASS
BIAS ON/OFF
RM ON/OFF
15
ALC ON/OFF
RELAY REC/PB
09
B
MAIN
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 33
23
NR ON/
OFF
NR ON/OFF
17
S1004
A CrO
2
 
S1008
B CrO
2
 
19
A 120/70
B 120/70
M
CAP MOTOR
 CONTROL
  Q336-343
SPEED
CONTROL
Q1001
SWITCH
Q335
RV1001
HIGH
SPEED
RV1002 
NORMAL
SPEED
M1
CAPSTAN
MOTOR
CAPM CNT2M
CAP M H / L
CAPM CNT2P
CAPM CNT1P
CAPM CNT1M
REEL
DETECT
IC1001
A SHUT
B SHUT
REEL
DETECT
IC1002
S1001 (A PLAY)
+5V
S1002 (B PLAY)
A PLAY
B PLAY
B HALF
S1003
(A HALF)
+5V
+5V
S1005
(REC A)
S1006
(B HALF)
S1009
(REC B)
(Page 29)
• 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.
– 29 –
– 30 –
– MAIN SECTION –
HCD-V818
MUTE
Q191
DBFB
SPE SIG
IIC DATA
IIC CLK
IIC CLK
RESET
IIC DATA
XRST
L-CH
FRONT
F RELAY
PL RELAY
CD POWER
STK MUTE
6
1
34
97
26
27
28
98
95
96
87
93
D951
RESET
SWITCH
Q951
RESET
IC951
+5V
11
10
X501
5MHz
15
57
16
14
13
09
46
100
CD POWER
STK MUTE
51
76
75
66
70
69
68
72
ST DIN
STEREO
TUNED
ST CE
ST CLK
ST MUTE
ST DOUT
TC RELAY
TC MUTE
A PLAY SW
B PLAY SW
60
TBL L
TBL R
T SENS
DISC SENS
2
1
DBFB H/L
TA MUTE
55
56
IIC DATA
     XRST
IIC CLK
RESET
AC CUT
X1
X2
XT1
XT2
X502
32.768KHz
MASTER CONTROL
IC501
6
8
F RELAY
PL RELAY
92
90
89
88
82
83
84
PB A/B
R/P PASS
BIAS
REC MUTE
NR ON/OFF
A SHUT
B SHUT
B HALF
A HALF
EQ H//N
CAP M H/L
CAPM CNT1M
CAPM CNT2M
CAPM CNT1P
CAPM CNT2P
ALC ON/OFF
CAPM CNT1M
CAPM CNT2M
CAPM CNT1P
CAPM CNT2P
  ALC ON/OFF
A TRG
B TRG
AMS IN
M62442 LAT
M62442 DATA
M62442 CLK
RELAY REC/PB
DJ-SIG
DJ-MUTE
ST L
COM DIN
COM CLK
COM DATA
STEREO
TUNED
ST CE
MUTE
TBL. L
TBL. R
T. SENS
DISC SENS
B
DECK
SECTION
C
CD
SECTION
A SHUT
PB L
   REC L
BIAS ON/OFF
B SHUT
RM ON/OFF
LM ON/OFF
REC/PB PASS
B HALF
A HALF
A PLAY
B PLAY
PB A / B
NORM/HIGH
NR ON/OFF
CAP M H/L
A TRG
B TRG
MS OUT
3
3
1
2
FM/AM TUNER
TUNER UNIT IS 
SUPPLIED AS 
THE ASSEMBLED 
BLOCK
(Page 28)
(Page 24)
F
DISPLAY
SECTION
(Page 34)
MUTE
SWITCH
Q142
POWER ON/OFF
      POWER
D
POWER
SECTION
2
9
67
• R CH: Same as L ch
• SIGNAL PATH
            : FM
            : CD
            : PB
            : REC
            : VIDEO/MD 
 
MD IN L
VIDEO IN
(AUDIO)
     L
      
MD OUT L
81
80
79
78
64
63
OUT OPEN
ENC1
ENC2
ENC3
LOAD IN
LOAD OUT
OPEN
ENC-1
ENC-2
ENC-3
LOAD IN
LOAD OUT
J101
(Page 31)
E
DISPLAY
SECTION
(Page 33)
G
VIDEO
SECTION
(Page 26)
64
69
67
66
68
1    2    3
2
42
58
60
57
41
36
38 39
40
MUTE
Q113
 SUPER
WOOFER
J191
MUTE
Q411
MIC
LEVEL
MIC 1
RV750
RV751
ECHO
LEVEL
ECHO PROCESSOR
IC751
J751
MIC 2
J750
65
52
87
31
85
86
17
77
99
   DBFB
 SWITCH
Q111,112
   DBFB
 SWITCH
Q141,143
   SUPER WOOFER
            AMP
           IC191
    
33 32
R-CH
R-CH
 EQ
AMP
AMP
  &
 SW
SELECT
SWITCH
  MICON
INTERFACE
IC750(1/2)
IC750(2/2)
IC411(1/2)
IC411(2/2)
VOLUME
IC111(2/2)
      EQ
IC111(1/2)
MIX AMP
  IC401
1
3
6
6
7
7
V
TC
TU
CD
MD
5
LPF 1 IN
LPF 2 OUT
61
– 31 –
– 32 –
– POWER SECTION –
HCD-V818
• R CH : Same as L ch
• SIGNAL PATH
          : FM
• Abbreviation
  EA
  SP
  MY
  HK
  TW 
  IA 
: Saudi Arabia model.
: Singapore model.
: Malaysia model.
: Hong Kong model.
: Taiwan model.
: Indonesian model.
Rch
Rch
RY401
RY402
RY404
THERMAL
DET
Q321,322
THP321
OVER LOAD
DET
Q201
Rch
POWER AMP
IC201
FRONT
F RELAY
PL RELAY
DBFB
STK MUTE
D5V
SWITCHED
Q932
D932
+5.6V
M+7V
A+7V
A–7V
+5.6V REG
IC931
D+5V
(SW)
D+5V
(UNSW)
+7V REG
IC941
+10V REG
IC911
+10V
ST+10V
+10V REG
IC921
Q934
VFDP
SP,MY,EA,HK,TW,IA
UNREG
–12V
POWER B+
POWER B–
AC
IN
AU/D5V SW
CD POWER
FRONT
SPEAKER
TM401
PHONES
J755
Rch
FRONT
SURROUND
SPEAKER
TM402
RELAY
DRIVE
Q403,407
Rch
FAN MOTOR
DRIVER
Q961, 962
M
UNREG
–12V
R-CH
M901
FAN
MOTOR
3
1
3
1
+5V REG
IC932
3
1
+7V REG
IC901
–7V REG
IC902
3
1
3
2
3
1
3
1
RELAY
DRIVE
Q401,402
MUTE
SWITCH
Q304,305
CD +5V
CONTROL
SWITCH
Q931,932
POWER ON/OFF
CD REG
Q931
+5V REG
Q933
VF REG
Q111
RECT
D111,112
VOLTAGE
SELECTOR
S501
RECT
D102
RECT
D101
VF
VF
T501
POWER
TRANSFORMER
MAIN
SECTION
D
09
(Page 30)
RECT
D103,
D104
+12V REG
Q911-913
SWITCH
Q901
Q905
CD+5V
Q937
PROTECT
CONTROL
Q301-303,
Q306,307
L
L
R
8
3
12
RELAY
DRIVE
Q408
– 33 –
– 34 –
– DISPLAY SECTION –
HCD-V818
X601
8MHz
41 - 53
54 - 57
FL601,Q70,702
FLUORESCENT INDICATOR TUBE
VF
8
9
XOUT
LINE IN
XIN
26
29
KEY 0
KEY 3
JOG A
JOG B
21
22
LED1
LED15
       
SIRCS
 L SEL
33
DISPLAY CONTROL
IC601
SDA
SCL
24
23
10
RESET
LED
SWITCH
PANEL LED
REMOTE
CONTROL
RECEIVER
IC602
LED
CONTROL
Q603
LED
 SWITCH
Q854,855
SPEANA
CONTROL
Q958-960
DJ MUTE
DJ SIG
ROTARY
ENCODER
KEY
MATRIX
KEY
MATRIX
D+5V
SEG1-SEG20
GR1-GR13
19
20
VOL A
VOL B
ROTARY
ENCODER
VOLUME
S602
S601
(JOG)
PANEL LED
Q601,602
34
35
36
37
SPEANA 1
SPEANA 2
SPEANA 3
SPEANA 4
D806
D805
09
    SPE SIG
IIC DATA
IIC CLK
 RESET
 X501
     8MHz
 X851
  4.09MHz
E
 MAIN
SECTION
(Page 30)
F
 MAIN
SECTION
25
32
79
•
80
•
1
6
11
12
14
18
•
•
L+R
XOUT
XIN
BPM LED B
BPM LED A
BOMBER LED
  ON/OFF  LED
63
64
PANEL  CONTROL
IC801
I2C CLK
RESET
28
JOG B
27
JOG A
36
33
BPF LOW
BPF HIGHT
37
SP4
SP1
L+R
L+R
29
SIRCS
19
I2C DATA
12
20
   RST
   BSY
61
62
          KEY O
  S801-808
 D801-803
38
          KEY 1
39
         MUTE
14
        DATA
15
          CLK
16
          LAT
13
            CH
(Page 29)
4
17
16
15
14
13
SP1
SP2
SP3
SP4
L+R 
•
5
SD
OUT
SI
ST
CH
XT
XT
RST
BUSY
23
SOUND MIX
IC851
MUTE
SWITCH
Q851
14
15
8
16
17
20
2
3
2
3
18
4
 F01
 F02
 F03
 F04
L+R
SPEANA BPF FILTER
IC603
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