18
18
STR-DH730/DH830
STR-DH730/DH830
5-6. BLOCK DIAGRAM – DISPLAY/POWER Section –
RELAY
DRIVER
Q901
AC DET
Q990
+13V
-13V
RECT
D904
RECT
D910-914
F1
F2
+5V_SINK
+5V
+5V
VACUUM FLUORESCENT
DISPLAY
ND100
MASTER
VOLUME
ROTARY
ENCODER
S108
S11
S111-116
S100-106
X2101
4MHz
F910
RY901
F911
INPUT
SELECTOR
ROTARY
ENCODER
S107
TONE/
TUNING
ROTARY
ENCODER
S109
+5V
+3.3V
+1.1V
+5V
-7V
+3.3V
(TUNER VDD)
OSC
Q100
+4V (ACPC)
+3.3V
+HV
(VCC)
TO
AUDIO AMP
SECTION
-HV
(VCC)
+7V
A+1.8V
+5V
+4V
(DCDC)
A+1.8V
+1.8V
+1.2V
(AVCC12)
SELECTER
IC2032
+6V
(DCDC)
F940
F941
-5V
STBY +3.3V
+5V_STBY
D990
T902
T901
F901
AC IN
RECT
D993, D994
RECT
D921
RY920
F913
F912
RELAY
DRIVE
Q820
T100
DC-DC
CONVERTER
F1
F2
Summary of Contents for STR-DH830
Page 93: ...MEMO 93 STR DH730 DH830 ...