Control Section; Power Section - Sony SDP-EP70 Service Manual

SDP-EP70/EP90ES
– POWER SECTION –
(Page 23)
H
CONTROL
SECTION
+5V
REF
+7V
-7V
-15V
09
FL. +30V
+5V REG
FLD. +5V
Q251,254
STOP
+5V
RESET
IC203
3 1
RST
-5V
+15V
+B
+5V REG
IC426
3 1 3 2
+7V REG
IC151
-7V REG
IC152
3 1
– 26 –
POWER TRANSFORMER
TO FLUORESCENT
F
INDICATOR TUBE
RECT
+30V REG
D115, 116
Q106
POWER - ON
RECT
DET
D113, 114
Q105
+5V REG
Q103,104
+
1
RECT
3
D112
REG
CONTROL
IC102
3 2
-5V REG
IC103
+13V
D110
+15V REG
Q101
D104
REG CONTROL
IC101,Q107
RECT
D101
REG CONTROL
IC101,Q108
D107
-15V REG
IC102
-13V
D111
– 25 –
T1
AC
IN
S1
POWER