Main Section - Sony HCD-VX3A Service Manual

HCD-VX3A

MAIN SECTION

E
TAPE DECK
SECTION
(Page 21)
J711
MIC1 RV712
MIC VOL
MIC AMP
IC712(1/2)
C
VIDEO
SECTION
(Page 19)
64
F
66
68
TAPE DECK
67
SECTION
(Page 21)
J101 (1/2)
L
VIDEO/MD
(AUDIO) IN
R R-CH
ANTENNA
FM/AM TUNER UNIT
FM75Ω FM ANT ST-L
FM ANT
ST-R R-CH
AM AM ANT
ST-MUTE
AM ANT
STEREO
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
DISC SENS
T. SENS
TBL.L
TBL.R
LOAD OUT
CD
B
SECTION LOAD IN
(Page 19)
ENC 3
ENC 2
ENC 1
OPEN
71 70 69 68 67 66 65 63 61 60 52 55 54 53
16
MIC AMP
IC712(2/2)
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
2 30 58
IN F2
IN D2
INPUT
IN B2
SELECT SOUND
GRAPHIC
CONTROL
IN C2 EQUALIZER
CIRCUIT
CONTROL
CIRCUIT
CPU
INTERFACE
33 32 34 60 59
14 11
SURROUND AMP
IC1201
2 3
41 40
51 50 49 47 48 38 59 30 29 2 5
57 72
BASS BOOST
FOUT2 VOL IN2 OUT2
VOLUME
42 41 36
CONTROL
CONTROL
CIRCUIT
.
38 39
FEED BACK
SWITCH
Q112
R-CH
XRST
VIDEO
D DBFB CONTROL
SECTION
2
I C.DATA
SWITCH
(Page 20)
I 2 C.CLK Q111
I 2 C.DATA R-CH
G DISPLAY
SECTION
2
I C.CLK
(Page 23)
POWER
POWER H
SECTION
CD-POWER
(Page 23)
X613 X601
16MHz 32.768kHz
13 15 11 10 7
SYSTEM CONTROL
IC501 (3/3)
22 22
MUTE
Q191
MUTE SWITCH MUTE
Q412 Q411
R-CH
POWER AMP
18 14
IC801
MUTE
Q113 Q113
MUTE SWITCH
Q803,804,865
RY401
OVER LOAD
RELAY DRIVE
DETECT
Q801
OVER LOAD
DETECT SW
Q432,437
D141 D803
R-CH
R-CH
DC DEFECT
SWITCH
Q433,434
D191
R-CH
PROTECTOR
Q439
Q192
+5V
RESET SIGNAL
3 GENERATOR 1
IC502
MUTE SWITCH
Q508,509
RESET
SWITCH
Q501
1 6 22 12 27
SPEANA J
DISPLAY
SECTION
(Page 23)
L J101 (2/2)
VIDEO/MD
R-CH R (REC OUT)
J191
SUPER WOOFER
J701
R-CH
PHONES
L TM401
SPEAKER
IMPEDANCE
USE 6-16Ω
R-CH
R
Q431
PROTECTOR
Q435,436
RESET I
DISPLAY
SECTION
(Page 23)
• RCH is omitted
• Signal Path
3 36
: CD PLAY
: TAPE PLAY
: RECORD
: TUNER (FM/AM)
: MIC INPUT