Power Section (Lx7 Model) - Sony LBT-LX7 Service Manual

– POWER SECTION – (LX7 model)
G
MAIN 1
SECTION
(Page 20)
MAIN 1
E
SECTION
(Page 20)
MAIN 2
L
SECTION
(Page 21)
MAIN 2
I
SECTION
(Page 21)
• R CH : Same as L ch
• SIGNAL PATH
: FM
09
J801
MIX MIC
J802
GUITAR
DBFB
F-RELAY
POWER AMP & VOLUME CONTROL
IC801
L-CH IN 18 11
VOLUME
CONTROL
6 3 4
D804
EVER +5V
MUTE
CONTROL
Q834
HEAD PHONE
MUTE
HP-MUTE
Q833
MUTE MUTE
STK-POWER
DRIVE SWITCH
Q804
Q803
PROTECT
POWER
ECO
MIC AMP MIC VOLUME MIC AMP
IC850 (1/2) RV850 IC850 (2/2)
GUITAR AMP
GUITAR LEVEL GUITAR AMP
IC852 (2/2)
RV851 IC852 (1/2)
R-ch
RELAY
DRIVER
Q401-402
PROTECT LATCH
VOLUME
DC AMP DRIVER
CONTROL
Q433-434 Q432
D802, 852
THERMAL L-CH THERMAL LATCH
SENSOR PROTECT SWITCH DRIVER
Q831-832 Q801 Q437
TH831
PROTECT
SWITCH
Q439
+VH
–VH
VG
23 23
MIC-SIG
MIC-SIG
J803
PHONES
MUTE
SW
Q805
HP.SW
FAN DETECTOR
FAN DET
D405
TM401
RY401
L
FRONT
R-CH R
PROTECT
SWITCH
Q431
RECT
+UNREG. 12V
D833-836
UN +10V
RECT
D841-844
UN –10V
+VL
RECT RECT
D831
–VL D832
RELAY CONTROL
SUB-TRANSFORMER
+5.6V
RECT
+5.6V 3
REG 1
D902-905
IC901
POWER
–30V REG
RECT
SWITCH
Q903, 908
D907-910
Q902
SWITCH
SWITCH
Q907
Q904-905
VF
VF
SWITCH
Q906
HCD-LX7/LX8
DISPLAY
K
SECTION
(Page 24)
MAIN 1
C
SECTION
(Page 20)
MAIN 2
H
SECTION
(Page 21)
POWER
TRANSFORMER
T951
230V
JW954
ONLY
STANDBY
STANDBY
RELAY
Q901
RY901
T901
AC
IN