Sony hcd-vx888 - Block Diagram - Main Section

HCD-VX888
2424
6-2. BLOCK DIAGRAM – MAIN Section –
+
+
+
–
POWER
AMP
IC501
Q503
10
12
18
DBFB
CONT
Q101, 102
MUTING
CONT
Q504, 505
IC102
6
7
5
MUTING
Q103
MUTING
CONT
Q861
Q821, 822
R-CH
MUTING
Q862
R-CH
DBFB
SWITCH
MUTING
CONT
Q503, 504
MUTING
Q581
PROTECT
DETECTOR
Q551
OVER LOAD
DETECTOR
Q823
D502
PROTECT
CONT
Q828, 829
PROTECT
SWITCH
Q891, 892
M961
(FAN)
DISPLAY/POWER
SECTION
(Page 26)
HEADPHONE
SW
MOTOR B+
MIC SIG
SPEANA
R-CH
PROTECT
FAN
DRIVE
Q824, 825
RY801
R-CH
RELAY
DRIVE
R-CH
TH701
+B
(+30V)
R-CH
R-CH
+
Q505, 506
OVER HEAT
DETECTOR
D841
Q831
FAN ON
SWITCH
79
21
2440
22
82 83 87 88
95
94
97
75
5
6
7
78
74
8
4
1
2
3
7
5
12
CN101
TO
SATELLITE
AMPLIFER
(TA-DX80)
L-IN
LINE-MUTE
STK-MUTE
PROTECT
RELAY-ON/OFF
CONT-A
CONT-B
BOOSTER SW
STAND-BY LED
H
DISPLAY/POWER
SECTION
(Page 26)
J
DISPLAY/POWER
SECTION
(Page 26)
K
DISPLAY/POWER
SECTION
(Page 26)
I
85
RELAY
DRIVE
Q831, 832
8081
DBFB
ON/OFF
LINE MUTE
STK MUTE
FRONT MUTE
PROTECT
REAR
RELAY
GEQ
DATA
GEQ
CLK
CONT-A
CONT-B
BOOSTER SW
STAND-BY LED
D794
LED
DRIVE
Q794
I/1
S796
I/1
S752
S1001
(A PLAY)
S1002
(B PLAY)
S1003
(A HALF)
DISPLAY
73
56
89
57
70
S1006
(B HALF)
91
S1005
(REC A)
S1009
(REC B)
(DECK-A)
REEL DET
IC1001
RV1002
Q395
NORM SPEED
RV1001
M901
CAPSTAN
MOTOR
A
—
B
+
HIGH SPEED
90
51
(DECK-B)
REEL DET
IC1002
51
A TRG M+
A TRIG. DRIVE
Q393, 394
52
B TRG M+
B TRIG. DRIVE
Q391, 392
DOLBY
B
DOL
PB
PAS
REC
PB
70
120
A
57
B
IC701
31
CAP MOTOR
SPEED CONT
Q1001
MOTOR
CONT
MM
52
69
SYSTEM CONTROLLER
IC501 (2/3)
PB
LEVEL (A)
RV302
DECK-A
HP901
PB
HEAD
PB EQ
AMP
IC303
57
PB EQ
AMP
IC304
PB
LEVEL (B)
RV303
DECK-B
HRPE901
REC/PB
HEAD
ERASE
HEAD
R-CH
R-CH
R-CH
R-CH
1
2
3
4
REC/PB SWITCH
IC302
SWITCH
Q304, 305
C332, L301
BIAS
TRAP
REC
EQ
BIAS
SW
RV304
T301
Q301
REC
BIAS
BIAS
OSC
Q302, 303
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
SUR1
SUR2
SUR3
GAME/VIDEO
1 AUDIO OUT ON/OFF
AMS IN
TC MUTE
REC/PB/PASS
NR ON/OFF
REC MUTE
BIAS
ALC
EQ H/N
PB A/B
A TRIG
B TRIG
TC RELAY
40
48
46
36 38
17 19
39
26
25
24
23
22
20
15
18
16
53
58
59
60
61
65
68
66
67
43
Q141
B+
(TCA+6V)
B+
(TC+12V)
A+12V
DC
BIAS
32
33
BP/SR
IC104
1
3
2
CONT2
CONT3
CROM
NORM
PB AMP, REC EQ AMP,
DOLBY B NR
IC301
REC
LEVEL (L)
RV301
A120/70 B NORM/CROM/METAL
S1004
(A. 120/70)
S1008
(A. 120/70)
3935
A
38
E
G
L
371312
11
9 10
INPUT SELECT
IC105
R-CH
L-CH
L-CH
LOUT
TUNER/CD SECTION
(Page 23)
VIDEO CD SECTION
(Page 25)
VIDEO/CD SECTION
(Page 25)
J101
L
R
J402
L
R
J601
J401
L
R
VIDEO
VIDEO OUT
AUDIO OUT
CONTROL
GAME INPUT
AUDIO
MD/VIDEO
(AUDIO)
R-CH
R-CH
3
1
2
7
3
9 10
1
VIDEO SWITCH
IC781
AUDIO SWITCH
IC401
SWITCH
CONTROL
Q401
SURROUND
SWITCH
SURROUND SWITCH
IC103
VIDEO
SWITCH
DISPLAY/POWER
SECTION
(Page 26)
34107
321
CONT3 CONT2
BP/SR
REC
AB
Q104
VIN2
VIN1
SW1
V OUT
MS OUT
LM ON/OFF
REC/PB/PASS
NR ON/OFF
RM ON/OFF
BIAS ON/OFF
ALC ON/OFF
NORM/HIGH
PB A/B
FREQ A
FREQ B
BOOSTER SW
STBY LED
POWER KEY
DISPLAY KEY
A PLAY
A SHUT
B PLAY
A HALF
B HALF
B SHUT
A TRIG
B TRIG
IN 2A
IN 2C
IN 2D
VSELA
IN2
DATA
VOL OUT2
CLOCK
IN 2B
INVOL OUT2
+
Q396, 397
CAP MOTOR
DRIVE
PHONES
SPEAKER
TM801
J631
L
R
IMPEDANCE
USE 6-16Ω
• SIGNAL PATH
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
: FM
: CD
: VIDEO
• R-ch is omitted due to same as L-ch.
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