
HBD-TZ215/TZ715
HBD-TZ215/TZ715
26
26
5-5. BLOCK DIAGRAM - POWER Section -
F1
FLUORESCENT
INDICATOR
TUBE
ND5000
DC/DC
CONVERTER
TRANSFORMER
T5000
MAIN
TRANSFORMER
T901
D931
PVDD (+26V)
(DIGITAL AMP)
D901
D908
D909
D914
DZ915
SUB
TRANSFORMER
T903
DC/DC
CONVER
TER
Q5000
D5000
D5001
D5002
SYSTEM CONTROL
IC503 (4/4)
FL DISPLAY
DRIVER
IC5001
FUNCTION
KEY
S5202,5203
E4V
+21V REG.
Q922
FEED BACK
PC902
SWITCHING
REGULATOR
IC921
D902
DZ903
D943
D503
P_CONT3
E4V
E+4V
6V
+6V
E3.3V
SWITCHING
REGULATOR
IC901
F901
FILTER
LF901,902
FEED BACK
PC901
STANDBY
CONTROL
PC903
POWER
PROTECT
Q943,949,950
EN
FUNCTION
KEY
S5201
ROTARY
SWITCH
MASTER
VOLUME
S5113
S5114,5204
@
/
1
S5301
F2
5V (FL)
+3.3V-2
(IC1101)
+3.3V-1
(IC1101)
USB 5V
VBUS_SW
+5V
D3.3V
+1.8V
(S-MASTER)
5V
(FL)
+3.3V-3
(IC1101)
RF+3.3V
(IC1101)
P.CONT1
RESET
Q501
FUNCTION
KEY
FOR
WRITE
JIG
CN508
D942
D955
F945
B+ SWITCH
Q945
D954
M+9V
P.CONT1
12V
M+9V
+9V
+6V
A12V
(AC IN)
POWER CONTROL
Q901
X501
5MHz
+1.8V
(IC1101)
+3.3V
(IC5001)
+9V
(TUNER)
POWER
PROTECT
Q969
D910
7
5
3
2
6
CNVSS
RXD1
CLK1
RTS1
TXD1
8
RESET