HCD-DZ275M/DZ570M/DZ665K/DZ670M
HCD-DZ275M/DZ570M/DZ665K/DZ670M
38
38
6-6.
BLOCK DIAGRAM – POWER Section –
94
AD KEY2
21
FL_CLK/LED_CLK
30
VEE
F1
S2 – 16
ND100
FLUORESCENT
INDICA
T
OR
TUBE
T100
DC/DC
CONVER
TER
TRANSFORMER
T901
MAIN
TRANSFORMER
D931
+31.5V
(DIGIT
AL
AMP)
D901
D905
T903
SUB
TRANSFORMER
Q100
DC/DC
CONVERTER
D100
D101
D102
24
FL_D_OUT/LED_DA
TA
23
FUNCTION
KEY
S102 – 104
IC501 (6/6)
SYSTEM CONTROL
IC100
FL
DISPLA
Y
DRIVER
95
AD KEY1
FUNCTION
KEY
S100,101
10
ENA
ROT
AR
Y
ENCODER
S107
VOLUME
11
E
N
B
12
RESET
E4V
20
AC CUT
4
SIRCS_IN
97
AD KEY0
7V
IN
4V
C
C
Q922
+21V REG.
PC902
FEED BACK
PC904
ST
ANDBY
CONTROL
Q930 – 932
POWER
CONTROL
Q120,121
B+ SWITCH
IC922
SHUNT
REG.
IC921
SWITCHING
REGULA
T
OR
IC506
+3.3V REG.
IC505
+5V REG.
IC507
+5V REG.
IC504
+5V REG.
IC201
+5V REG.
IC620
+5V REG.
IC931
SHUNT
REG.
IC1
105
+3.3V REG.
IC1
107
+3.3V REG.
IC1708
+3.3V REG.
IC502
+5V REG.
IC102
+3.3V REG.
IC3050
+1.8V REG.
D902
D923
Q921
D947
D502
PS954
P.CONT3
P.CONT3
E4V
E+4V
6V
+6V
E3.3V
BUP3.3V
+4V
(S-AIR)
DZ904
FR929
2F
B
1Z
C
9D
3C
4V
C
C
IC901
SWITCHING
REGULA
T
OR
F901
LF901,902
FIL
TER
PC901
FEED BACK
PC903
ST
ANDBY
CONTROL
Q943,947
POWER DOWN
DETECT
Q949,950
POWER
PROTECT
EN
5F
B
8C
LK
7D
IN
9S
T
B
FUNCTION
KEY
S105,106
D505
74
KEY
INT
!
/
S108
15 – 29
G1 – 12
42 – 31
F2
5V
FL_CS/STB
40
P.CONT2
39
P.CONT1
P.CONT2
+3.3V5
+3.3V4
USB 5V
VBUS_SW
A+5V
+5V
D3.3V
+1.8V
5V
(FL)
SW3.3V
VIDEO 5V
(DMPOR
T)
+1.8V
(IC1
101)
+5V
(IC404)
+3.3V3
(IC1
101)
VDD3.3V
(IC1
101)
RF+3.3V
P.CONT1
41
WRITE EMP
P_CONT3
Q503
RESET
IC503
RESET
IC101
REMOTE
CONTROL
RECEIVER
D91
1
PS956
D916
D941
F945
Q945
B+ SWITCH
D912
M+14V
M+9V
P.CONT1
12V
M+14V
M+9V
A+9V
A12V
IC941
+12V REG.
IC413
+9V REG.
IC
111
0
+1.8V REG.
(AC IN)
Q901
ON/OFF SWITCH
H
AMP
SECTION
I
S-AIR/USB
SECTION
DZ570M/DZ665K/DZ670M
(Page 36)
(Page 37)