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HCD-BX3R/BX4R
20
20
HCD-BX3R/BX4R
6-4. BLOCK DIAGRAM – PANEL, POWER SUPPLY Section –
SIRCS
4
KEY WAKE UP_DISPLAY
73
LCD CLK
29
LCD DATA
30
SYSTEM CONTROLLER
IC301 (4/4)
(AC IN)
SUB POWER
TRANSFORMER
T902
RY901
MAIN POWER
TRANSFORMER
T901
RECT
D911 – 914
D922, 923
D330
D920
D332
D322
D318, 321
D303
AMP B+
F901
F902
TO
POWER AMP
AMP B–
+9V
REGULATOR
IC305
+5V
REGULATOR
Q304 – 306
LCD B+
LCD +5V
UNREG SUB
UNREG SUB
SYS +3.3V
B+SWITCH
Q810, 811
+9V
RECT
D907 – 910
VOLTAGE
DETECT
IC310
RELAY
DRIVE
Q315
LINE
FILTER
LF901
TUNER +9V
28
STBY-RELAY
20
AC CUT
86
I-POWER MONITOR
12
RESET
REMOTE CONTROL
RECEIVER
IC804
D803, 804
(LCD BACK LIGHT)
X301
32.768kHz
11
10
XCOUT
XCIN
13
15
X302
5MHz
XOUT
XIN
LCD801
LIQUID
CRYSTAL
DISPLAY
LCD BACK LIGHT LED
25
USB MEMORY
S801, 803 – 813,
S815 – 819
(FRONT PANEL KEYS)
KEY0 – KEY2
92 – 94
76
USB POWER
RESET
SWITCH
Q309
AC DETECT
Q301
VM +7V
RECT
D308, 312,
D314, 315
+5V
REGULATOR
IC306
VBUS +5V
+1.5V
+1.5V
REGULATOR
IC201
D310
KEY WAKE UP_POWER
74
D311
KEY0
KEY2
LED DRIVE
Q808
D802
USB/BT LED
26
LED DRIVE
Q806
STANDBY
D805
STANDBY LED
27
LED DRIVE
Q805
USB +3.3V
+3.3V
REGULATOR
Q314, 318, 391
70
CD ON
AVDD +3.3V
DVDD +3.3V
+3.3V
REGULATOR
Q302, 303,
Q390, 392
RECT
D916 – 919
AC DET
K
PROTECT
J
+9V LCD
+5V
B+SWITCH
Q311, 313
VOLTAGE
DETECT
Q393
PROTECT
DETECT
Q333, 338
(E2, E51)
(EXCEPT E2, E51)
VOLTAGE
SELECTOR
S901
• Abbreviation
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
E51 : Chilean and Peruvian models
(Page 19)
(Page 19)
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