Read Sony STR-DE235 Service Manual online
STR-DE235
– 11 –
– 12 –
4-3.
BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –
05
B+ SWITCH
Q233
REMOTE CONTROL
RECEIVER
IC203
FLUORESCENT
INDICATOR
TUBE
FL201
POWER ON/OFF
RELAY DRIVE
Q802
BRIDGE
RELAY DRIVE
Q809
–24V
REGULATOR
Q801
RECT
D803
D803
RECT
D802
D802
F
(Page 9)
BASS BOOST
B+ SWITCH
Q237
LED DRIVE
Q242
RECT
D820 – 823
RECT
D810 – 813
+12V
REGULATOR
IC801
+5V
REGULATOR
IC803
RECT
D814, 815
VREF
AC
DET
LATCH
+5.6V
REGULATOR
Q951
RESET SWITCH
Q201, 202
–12V
REGULATOR
IC802
+10V
REGULATOR
IC805
+5V
REGULATOR
IC804
+5V
F1
F2
Q234 – 236
LED DRIVE
Q236
Q235
Q234
D236
D241
D421
Q239
LED3
LED SELECT
S201 – 220, 222 – 227,
S229 – 231, 234 – 244
BRIDGE-RLY
D201, 202
OUTC
VSC
RESET
V+
VSB
+12V
–12V
RELAY B+
+10V
DOLBY SURROUND PRO-LOGIC
CIRCUIT (IC300, 301) B+
+5V
DISPLAY SECTION B+
+5V
FM/AM TUNER PACK,
RDS DECODER (IC1) B+
FUNCTION SWITCH (IC401),
AUDIO LINE AMP CIRCUIT
POWER AMP
CIRCUIT
–24V
FL DRIVER (IC201) B–
+5V
SYSTEM CONTROLLER
(IC201) B+
RESET SIGNAL GENERATOR,
+5.6V REGULATOR
IC950
B+
B–
–1
–2
TO FL201
F1
F2
T902
POWER
TRANSFORMER
T901
POWER
TRANSFORMER
AC OUTLET
SWITCHED
100W MAX
100W MAX
CNJ903
AEP
RY901
A/D-1 – A/D-4
61
LED2
60
LED1
59
BASS BOOST
53
37
49
44
15
POWER-RLY 23
STOP 47
RESET 17
2
VSA
7
3
8
5
6
RY801
AC IN
SYSTEM CONTROLLER, FL DRIVER
IC201 (2/2)
SYS-POWER
SIRCS
S200
(POWER)
I/
u
D237
REAR
D233
CENTER
D228
BASS BOOST
D236
EFFECT/
DELAY
D234
SET UP
D235
NAME
28 – 25
DIG1 – DIG10
7 – 1, 80 – 78
S1 – S15
77 – 72, 70 – 62
MUTING LED
50
LED DRIVE
Q241
D240
MUTING
C.STUDIO LED
39
LED DRIVE
Q231
D231
CINEMA
HALL LED
40
LED DRIVE
Q232
D232
MUSIC
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