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HCD-DZ265K/DZ266K/DZ270K/DZ570K/DZ777K
6-6.
BLOCK DIAGRAM – POWER Section –
S102 – 104
FUNCTION
KEY
S100,101
FUNCTION
KEY
S105,106
FUNCTION
KEY
S108
/
D505
S107
ROTARY
VOLUME
ENCODER
IC503
Q503
E4V
RESET
RESET
IC101
REMOTE
CONTROL
RECEIVER
HCD-DZ265K/DZ266K/DZ270K/DZ570K/DZ777K
IC501 (6/6)
SYSTEM CONTROL
94 AD KEY2
IC100
FL DISPLAY
DRIVER
95 AD KEY1
VEE
30
D102
97 AD KEY0
FL_CLK/LED_CLK
21
8 CLK
15
FL_D_OUT/LED_DATA
24
7 DIN
S2 – 16
29
FL_CS/STB
23
9 STB
42
G1 – 12
31
74 KEY INT
10 ENA
11 ENB
+5V
(IC404)
+3.3V3
(IC1101)
VDD3.3V
(IC1101)
RF+3.3V
+3.3V5
+3.3V4
12 RESET
VIDEO 5V
(DMPOART)
P.CONT2
20 AC CUT
P.CONT2
40
P.CONT1
P.CONT1
39
USB 5V
4 SIRCS_IN
S-AIR/USB
VBUS_SW
I
SECTION
(Page 36)
A+5V
+5V
+1.8V
(IC1101)
D3.3V
+1.8V
5V
(FL)
SW3.3V
P.CONT3
WRITE EMP P_CONT3
41
T100
DC/DC
CONVERTER
D100
TRANSFORMER
D101
5V
FL100
F1
FLUORESCENT
F2
INDICATOR
TUBE
IC620
+5V REG.
IC1105
+3.3V REG.
SECTION
(Page 37)
IC1107
+3.3V REG.
IC1708
+3.3V REG.
DZ570K/DZ777K
M+14V
IC201
A12V
+5V REG.
IC504
M+9V
M+9V
+5V REG.
A+9V
IC507
+5V REG.
IC505
+5V REG.
+6V
IC1110
+1.8V REG.
IC506
+3.3V REG.
E4V
IC3050
+1.8V REG.
E3.3V
BUP3.3V
IC502
+5V REG.
IC102
+4V
+3.3V REG.
(S-AIR)
38
38
T901
MAIN
D931
TRANSFORMER
+31.5V
(DIGITAL AMP)
D905
PC901
FEED BACK
IC931
SHUNT REG.
Q943,947
PC903
POWER DOWN
STANDBY
DETECT
CONTROL
Q949,950
AMP
EN
H
POWER
PROTECT
T903
SUB
D912
TRANSFORMER
M+14V
12V
IC941
+12V REG.
P.CONT1
D916
F945
Q945
B+ SWITCH
IC413
+9V REG.
D941
PS956
D911
6V
PS954
D947
D902
E+4V
D502
PC902
Q120,121
FEED BACK
IC922
B+ SWITCH
SHUNT REG.
Q930 – 932
PC904
P.CONT3
POWER
STANDBY
CONTROL
CONTROL
(AC IN)
F901
LF901,902
D901
FILTER
IC901
SWITCHING
REGULATOR
3 C
Q901
4 VCC
ON/OFF SWITCH
5 FB
FR929
IC921
SWITCHING
REGULATOR
7 VIN
9 D
DZ904
Q922
4 VCC
+21V REG.
2 FB
1 ZC
D923
Q921
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