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HCD-GTR88
HCD-GTR88
20
20
6-4.
BLOCK DIAGRAM - DISPLA
Y
, POWER SUPPL
Y
Section -
5
4
REMOTE CONTROL
RECEIVER
IC1
100
FL1
100
FLUORESCENT
INDICA
T
OR
TUBE
94
SW/USB CTRL
FLUORESCENT
INDICA
T
OR
TUBE DRIVER
IC1
101
SYSTEM CONTROLLER
IC401 (4/4)
RECT
D1201, 1202
LED-VOL1. 2
LED-VOL3. 4
LED-VOL5. 6
S1
100 – 1
109,
S1
110 – 1
119,
S1
124 – 1
133,
S1302
75
STBY
RELA
Y
RESET
SWITCH
Q350, 351
D351
D571
D+3.3V
+1.8V
71
OVER
VOL
TAGE
20
AC CUT
12
RESET
87
MASTER VOL
SG5/KS5 –
SG24/KS24
14 – 33
D1
105 – 1
107, SEL
A
D1
108 – 1
110, SEL
B
(STREAM)
LED DRIVE
Q1
122
86
USB-LED CTRL
LED DRIVE
Q1
121
D1
104
SUBWOOFER
95
STBY
LED
AD KEY0
4
SIRCS
D101
1
I/
1
ST
ANDBY
ROT
AR
Y
ENCODER
MASTER
VOLUME
S1301
DIN
FL-DRIVER-DA
TA
2
2
CLK
FL-DRIVER-CLK
1
1
STB
FL-DRIVER-CS
3
100
88
91
90
74
97
89
85
POWER/DISPLA
Y
-KEY
AD-KEY0
AD-KEY1
AD-KEY2
(AC IN)
R
Y1200
RELA
Y
DRIVE
Q1200
VOL
TAGE
SELECT
OR
S1200
FA
N
+12V
D1250
M+9V
F1254
RECT
D600
F1252
F1253
F1250
F1251
RECT
D1300
LED+9V
+4V
REGULA
T
OR
Q352-354
LED SEL
A,
LED SEL
B
CD MOT
OR B+
REGULA
T
OR
Q655 – 658
27
2
1
CDM-SD
JOG B+
3
AD SUPPL
Y
SW
B+ SWITCH
Q400, 500
–32V
REGULA
T
OR
Q1250
AMP
SECTION
B+
FOR
FLUORESCENT
INDICA
T
OR
TUBE
–VG
VF
VF
PT1200
SUB POWER
TRANSFORMER
PT1250
MAIN POWER
TRANSFORMER
VCC +3.3V
EVER +3.3V
+VH
–VH
D1002, 1003
(E2, E51, E4)
(MX, AR, AUS)
AC DETECT
GR1 – GR14
34 – 47
LED DRIVE
Q1
118 – 1
120
USB B
D1000
USB A
+5V
REGULA
T
OR
IC065
49
MTK OE
USB +5V
M +5V
+5V
REGULA
T
OR
Q360
B+ SWITCH
Q300 – 303
82
METER PTR
LED
METER
DISPLA
Y
BLOCK
AC CUT
DETECT
OR
D1203
83
METER BL
CTL
LED DRIVE
Q230
LED
SEL
A
LED SEL
B
LED
LED DRIVE
Q582
81
METER SW
77
METER-IN4
78
METER-IN3
80
METER-IN2
METER-IN1
79
+9V
SWITCH
Q684
M+9V
(E4)
RECT
D1301
+VL
–VL
POWER
CONTROL
Q090
SW DRIVER
Q681
76
TC_M+9V SW
+12V
REGULA
T
OR
IC040
M+9V
UNREGULA
TE
H
A
bbreviation
AR
: Argentina
model
E2
: 120V
AC area in E model
E4
: African
model
E51
: Chilean and Peruvian models
MX
: Mexican model
AUS :
Australian model
1
2
D623, 624
A+9V
A
VDD +5V
DVDD +5V
RF+3.3V
+5V
REGULA
T
OR
Q696
2
1
3.3V
REGULA
T
OR
IC107
F1255
(Page 19)
G
(Page 18)
+9V
REGULA
T
OR
IC055
I
O
+3.3V
REGULA
T
OR
IC075
+9V
REGULA
T
OR
IC200
21
+1.8V
REGULA
T
OR
IC
111
8
1