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