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HCD-M90
34
34
36 – 34
KEY1 – KEY3
LIQUID CRYSTAL
DISPLAY
LCD802
SIRCS
4
12
RESET
RESET SIGNAL
GENERATOR
IC602
D333
D620
SYSTEM CONTROLLER
D814
(STANDBY)
LED DRIVE
Q809
CD-SYNC
LED
47
STAND-BY LED
42
LED DRIVE
Q807
DSG-LED
45
LED DRIVE
Q806
TUNER
D810
TU-LED
49
LED DRIVE
Q805
DVD
D809
CD-LED
96
D/A CONVERTER
B+
B+
SWITCH
Q302
+9.5V
REGULATOR
Q301
82
STBY RLY
RECT
D906 – 909
RELAY DRIVE
Q902
RECT
D902 – 905
+12V
REGULATOR
Q355
+4V
REGULATOR
IC904
TUNER ON
SWITCH
Q303, 304
AMP +16V
AMP – 16V
D921
RECT
D910 – 913
D804 – 806
(LCD BACK LIGHT)
TU +9.5V
COM +8V
COM +12V
40
TUNER ON
65
SYSPWR
SW +3.3V
U-COM +3.3V
T902
MAIN POWER
TRANSFORMER
T901
SUB POWER
TRANSFORMER
RY901
(Singapore)
(EXCEPT Singapore)
(AC IN)
VOLTAGE
SELECTOR
S901
4V
S801 – 820
10
11
X801
32.768KHz
15
13
X802
16MHz
XCIN
XCOUT
XIN
XOUT
POWER ON/OFF
RELAY DRIVE
Q902
TC +3.3V
+3.3V
REGULATOR
Q309
+8V
REGULATOR
IC304
LCD STB 6
LCD RS 3
LCD DATA 5
LCD SCK 7
20
AC CUT
REMOTE CONTROL
RECEIVER
IC802
D919, 920
D622
RESET SWITCH
Q619
RESET SWITCH
Q618
D604
B+ SWITCH
Q635, 637
LED B+
+14V
+5V
REGULATOR
IC614
D+5V
A+3.3V
SERVO DSP
+3.3V
AV DECODER
+3.3V REGULATOR
IC301
+3.3V REGULATOR
IC502
D+3.3V
+1.8V
SERVO DSP,
AV DECODER
+1.8V
AV DECODER
+1.8V REGULATOR
IC006
M+12V
+1.8V REGULATOR
IC501
+4V
REGULATOR
IC605
COM +5V
COM +3.3V
+5V
REGULATOR
IC902
+3.3V
REGULATOR
IC903
+12V
REGULATOR
IC901
+12V
REGULATOR
IC901
POWER SWITCH
Q904
RECT
D914 – 917
74
POWER KEY
S803
51
BACK LIGHT
LED DRIVE
Q808
TAPE
D812
TC-LED
46
CD SYNCHRO
D813
DSG
D811
D602
LED DRIVE
Q811
LED DRIVE
Q812, 813
IC301 (SUFFIX-21) IC301 (SUFFIX-22)
IC502 (SUFFIX-21) IC502 (SUFFIX-22)
IC006 (SUFFIX-21) IC006 (SUFFIX-22)
IC501 (SUFFIX-21) IC501 (SUFFIX-22)
(SUFFIX-12)
6-6.
BLOCK DIAGRAM – KEY CONTROL/POWER SUPPLY Section –