Sony HTC-V5550 / MHC-V5550 / MHC-V7770AV Service Manual ▷ View online
HTC-V5550
— AUDIO/VIDEO CD SECTION —
— 19 —
— 20 —
PROGRAM ROM
IC506
16
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
D/A
CONVERTER
INPUT
INTERFACE
CIRCUIT
OSC
BUFFER
IC504
LOW-PASS
FILER
IC101
IC101
B.P.F.
B.P.F.
VIDEO
BUFFER
Q301
VIDEO
BUFFER
Q303
VIDEO
BUFFER
Q307
VIDEO
BUFFER
Q308
VIDEO
BUFFER
Q601
VIDEO
BUFFER
Q304
VIDEO AMP
IC401 (1/2)
VIDEO AMP
IC401 (2/2)
VIDEO SELECT
IC601
SHARPNESS
CONTROL SWITCH
Q306
SHARPNESS
FILTER
Q302
VIDEO
MUTE
Q454
VIDEO
MUTE
Q453
Y/C MIX
Q310
BUFFER
Q502
LOW-PASS
FILER
MODE
CONTROL
TIMING CONTROL/
CLOCK GENERATOR
DIGITAL FILTER,
D/A CONVERTER
IC509
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL PROCESSOR
IC505
CD MECHANISM CONTROLLER
IC502 (2/2)
EXPANSION
IC402
14
11
VOUTL
VOUTR
R-CH
10
RSTB
17
18
19
20
21
9
7
24
1
DATA
BCK
LRCK
CD-ROM
INTERFACE
CIRCUIT
MPEG
SYSTEM
DECODER
MPEG
VIDEO
DECODER
VIDEO
PROCESS
CIRCUIT
CPU INTERFACE
AUDIO
INTERFACE
CIRCUIT
MPEG
AUDIO
DECODER
D-RAM/ROM INTERFACE
3
4
5
CD-DATA
C2PO
DATA
BCK
LRCK
DATA,
BCK,
LRCK,
C2PO
BCK,
LRCK,
C2PO
CD-BCK
CD-LRCK
6
CD-C2PO
MA0 – MA10
MD0 – MD15
D0 – D15
D0 – D15
A0 – A10
A0 – A8
384FSO
768FSO
4
MCKO
X503
27MHz
MD
XT2
XT1
37
14 13
29
28
38 42 40
72
22
19
32
21
20
33
31
12
23
24
60
69
75
113
110
111
108
106
HRDY
Y-OUT
86
DA-XCLK
VCK-IN
DA-DATA
DA-BCK
DA-LRCK
C-OUT
93
114 121
HSEL
112
HD-OUT
119
HD-IN
117
HCK
ML
8
MC
LEVEL
SHIFT
IC501
IC501
B
(Page 18)
IIC-DATA, IIC-CLK
F
(Page 23)
D
(Page 23)
CD POWER
J
(Page 23)
MCLK
33.8MHz
A
(Page 18)
CD-L
E
(Page 23)
C
(Page 18)
C
Y
DIGITAL
FILTER,
NOISE
SHAPER
CIRCUIT
CIRCUIT
58 – 56, 54, 52 – 50, 48, 46 – 44
10 – 15, 17, 19, 21, 23 – 29
16 – 19, 22 – 26
A0 – A10
12 – 5, 27, 26, 23
D8 – D14
A11 – A17
25, 4, 28, 29, 3, 2, 30
D0 – D7
O0 – O7
A0 – A10
DQ1 – DQ16
ADDRESS BUS
DATA BUS
D-RAM
IC507
A0 – A8
13 – 15, 17 – 21
2 – 5, 7 – 10, 31 – 34, 36 – 39
WE
22
CE
RAS
LCAS
UCAS
CAS
RESET
HINT
CL680 RESET
CL680 HINT
CL680 HRDY
CL680 HRDY
CL680 SEL
DATA1I
93
NT/PAL
TEST LED
CLK1
DATA1O
DATA1O
ITOU
UTOI
45
BUS
DATA
CLK
DF LATCH
34
7
3
2
1
7
5
SHARPNESS
65
VMUTE
77
XRESET
10
9
18
UTAU
UTAI
29
30
TXD
RXD
29
30
DATA
CLK
14 13
12C.CLK
12C.DATA
IIC-DATA
IIC-CLK
IIC-DATA
IIC-CLK
XOUT
XIN
11
12
RXD
TXD
RESET
RESET
RAS0
MWE
MCE
DEVICE RESET
RESET
1
3
1
2
3
4
J301
S VIDEO OUT
MONITOR OUT
J601
VIDEO IN
XOUT
XIN
X501
10MHz
X401
8MHz
NTSC
AUTO
PAL
S501
SYSTEM SELECT
D502
(SELF DIAGNOSIS)
73
13
15
20
19
PGIO2/VSYNC/CSYNC
HTC-V5550
— TAPE DECK SECTION —
— 21 —
— 22 —
PB EQ AMP
(DECK A)
IC611
PB LEVEL (L)
(DECK A)
REC-L
PB-L
CAPSTAN MOTOR
CONTROL SWITCH
Q1001
CAPSTAN
MOTOR DRIVE
Q336 – 339
1
G
(Page 23)
(Page 23)
L-CH
R-CH
R-CH
HP101
(PLAYBACK)
PB EQ AMP
(DECK B)
IC601
L-CH
R-CH
R-CH
16
R-CH
R-CH
HRPE101 (1/2)
(RECORD/PLAYBACK)
ALC
REC
EQ AMP
AMS
CIRCUIT
DOLBY NR
AMP
CIRCUIT
BIAS
CONTROL
CIRCUIT
DOLBY PASS
R-CH
L.P.F.
BUFFER
Q335
M
M1
(CAPSTAN)
HRPE101 (2/2)
(ERASE)
BIAS OSC
T621
B+
(A+7V)
R-CH
3
46
28
43
36
40
35
34
39
26
31
19 15 16 18 20 22 23 24 25
17
99 94 93 92 90 89 88 87
31
33
32
32
+
48
4
2
RV311
PB LEVEL (L)
(DECK B)
RV301
TAPE SPEED
(NORMAL)
RV1002
TAPE SPEED
(HIGH)
RV1001
REC LEVEL (L)
(DECK B)
RV301
REC BIAS (R)
(DECK B)
RV441
REC BIAS (L)
(DECK B)
BIAS OSC
Q621, 622
REC BIAS
SWITCH
Q623
ROTATION
DETECT SENSOR
(DECK A)
IC1001
RV341
BIAS
TRAP
C331, L331
REC/PB SWITCHING
IC602
SYSTEM CONTROLLER
IC101 (2/3)
DECK PROCESS
DECK A/B SELECT, PB/REC EQ AMP,
DOLBY NR AMP, ALC, AMS
IC301
AIN (L)
BIN (L)
MAOUT
PB OUT (L)
EQ OUT
(L)
MSIN
MSOUT
BIAS ON/OFF
70
120
BIAS (N)
BIAS (C)
BIAS (M)
S1004
A 120/70
B NORM/CROM
ALC ON/OFF
PB A/B
NORM/HIGH
NR ON/OFF
RM ON/OFF
REC/PB/PASS
LM ON/OFF
(DECK A 120/70)
98
S1003
S1001
(A PLAY)
S1002
(B PLAY)
(A HALF)
S1008
(DECK B 120/70)
27
REC OUT (L)
ROUT (L)
RIN (L)
ALC (L)
EQ IN (L)
ALC
IN (L)
44
38
97
AMS-IN
26
A-SHUT
ROTATION
DETECT SENSOR
(DECK B)
IC1002
27
B-SHUT
TRIGGER
PLUNGER DRIVE
(DECK A)
Q333, 334
84
A-TRG
TC-MUTE
R/P-PASS
NR-ON/OFF
REC-MUTE
BIAS
EQ-H/N
PB-A/B
ALC-ON/OFF
TC-RELAY
A-PLAY-SW
B-PLAY-SW
A-HALF
28
S1006
(B HALF)
S1009
(REC B)
S1005
(REC A)
B-HALF
SL1
TRIGGER PLUNGER
DECK A
TRIGGER
PLUNGER DRIVE
(DECK B)
Q331, 332
83
B-TRG
82
CAP-M-H/L
CAPSTAN
MOTOR DRIVE
Q340 – 343
100
CAPM-ON/OFF(+)
1
CAPM-EMG(+)
85
86
CAPM-EMG(–)
CAPM-ON/OFF(–)
SL2
TRIGGER PLUNGER
DECK B
95
96
H
• SIGNAL PATH
: PB (DECK A)
: PB (DECK B)
: REC
HTC-V5550
— POWER SECTION —
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
¢
: internal component.
•
1
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
p
: parts mounted on the conductor side.
•
®
: Through hole.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Abbreviation
HK
: Hong Kong
SP
: Singapore
MY
: Malaysia
CH
: Chinese
TH
: Thai
IA
: Indonesia
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• 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.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
f
: AM
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD (AUDIO)
L
: CD (VIDEO)
c
: DIGITAL OUT
• Indication of transistor
Q
C
These are omitted
E
B
— 23 —
— 24 —
RESET
IC101
11
10
X101
5MHz
15
16
65
67
72
54
70
69
CD-PLAY
D224-230
DISC1
DISC2
DISC3
DISC3
EXIST1
EXIST2
EXIST3
LED
ON/OFF
SWITCH
Q214-223
57
XRST
46 CD-POWER
55
56
IIC DATA
IIC CLK
RESET
X1
X2
MASTER CONTROL
IC101
DECO1
DECO2
CD-PAUSE
CD-L
CD-POWER
IIC-DATA
IIC-CLK
IIC-CLK
RESET
PB L
REC L
52
(Page 20)
(Page 19)
(Page 20)
(Page 19)
KEY
MATRIX
53
• R CH: Same as L ch
• SIGNAL PATH
: CD
: PB
: REC
• SIGNAL PATH
: CD
: PB
: REC
68
66
LED1
LED2
LED3
LED2
LED3
LED4
LED5
LED6
2
3
4
5
7
KEY B
KEY A
30
29
6
D201-206
LED
ON/OFF
SWITCH
Q201-206
+7.5V REG
Q852
+12V REG
IC851
3
1
+5V SW
Q102-104
-7.5V REG
Q855
+5V REG
IC854
3
1
+
-
+7V REG
IC853
3
A+7.5V
D+5V
A+5V
M12V
+5V
M+7V
A-7.5V
1
17
13
(CD R)
R CH
(PB R)
R CH
(REC R)
R CH
CNB108
2
3
9
7
6
4
14
16
RECT
D901-904
SYSTEM
CONTROL
+5V REG
IC852
3
1
J
D
F
E
(Page 22)
G
(Page 22)
H
Note:
The components identi-
fied by mark
The components identi-
fied by mark
!
or dotted
line with mark
!
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
C
These are omitted
E
B
HTC-V5550
6-3. PRINTED WIRING BOARD — CD SECTION —
• Refer to page 16 for Circuit Boards Location.
— 25 —
— 26 —
Ref. No.
Location
IC101
E-4
IC102
C-10
IC103
E-2
IC104
F-9
Q101
E-12
Q102
C-2
Q103
C-2
• Semiconductor
Location
16
(Page 50)
B S
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