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HCD-VX888
26
26
6-4.
BLOCK DIAGRAM – VIDEO CD Section –
FUNCTION
KEY
S768 – 781
IC602
FUNCTION
KEY
S753 – 767
LED
DRIVER
S601 – 605
D608, 609
D612 – 618
FUNCTION
KEY
ROTARY
ENCODER
S601 – 606
S791 – 795
VOLUME
S751
PAUSE REC/START
D751
X601
4MHz
FLOURESCENT
INDICATOR TUBE
DISPLAY CONTROLLER,
LED DRIVE
IC601
FL601
F1
F2
LED
DRIVER
S791 – 793
D791 – 793
LED
DRIVER
Q751
ENTER
D752
LED
DRIVER
Q752
–VG
100
IC722 (2/2)
IC722 (1/2)
DIGITAL
ECHO AMP
IC721
MIC 2
J721
MIC 1
J722
–V
REG
D543
Q941
D977
D822
D824
D910
D911
F1
F2
D541
D901 – 904
120
S901
D906 – 909
D972 – 975
(EXCEPT E91)
(E91)
JW973
JW974
(EXCEPT E91)
(EXCEPT E91)
(EXCEPT IA)
AC IN
F971
220
230 – 240
120
220
230 – 240
AC OUT
TO
SATLLITE
AMPLIFIER
(TA-DX80)
VOLTAGE SELECTOR
+VH
–VG
(–32.2V)
–VH
+VL
–VL
POWER
AMP
(IC501)
T910
POWER
TRANSFORMER
T972
POWER
TRANSFORMER
IC921
CD POWER
SWITCH
Q911, 912
IC911
IC951
IC961
IC971
EVER +5.7V
RY971
RY972
B+
(+13.9V)
(RY801)
A+12V
ST A+12V
MIC A+12V
TC A+12V
TC D+5V
+3.3V
VREF (IC501)
D +5V
VCC (IC501)
TC M+9V
CDM M+7V
LED +7V
AUDIO +5V
CD A+5V (SW)
CD D+5V (SW)
D952
D953
D509
D510
D920 – 922
D577
D579
D580
D508
D511
IC502
Q575
100
(EXCEPT E91)
JW990
10
X501
32.768kHz
11
RELAY
DRIVE
Q971
IC616
15
X502
16MHz
13
(E91)
JW986
STBY +5V
HEADPHONE SW
VIDEO SWITCH
SPEANA
MIC SIG
XRST
IIC DATA
IIC CLOCK
PROTECT
MOTOR B+
E3: 240V AC Area in Emodel
E91: 220V AC Area in Emodel
EA: Saudi Arabia model
SP 2/6: Singapore model
IA: Indonesia model
• Abbreviation
JW972
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299