Power Amp Section - Sony STR-DE1015G Service Manual

STR-DE1015G
— POWER AMP SECTION —
L 6
R 8
MUTE
SWITCH 1
Q503, 504
CENTER
CENTER 1
C
INPUT/OUTPUT SL/SR DRIVER
SECTION
(Page 50)
REAR
6
REAR L
REAR
REAR R 8
MUTE
SWITCH 1
Q701, 703
WOOFER
S WOOFER 3
2
G
POWER SECTION LS
(Page 65)
09
L/R DRIVER
IC501
2
PROTECTOR
DRIVE
3 Q508
4
POWER AMP
PRE DRIVE 5
Q504–507
POWER AMP
PRE DRIVE 9
Q554–557
10
11 PROTECTOR OVER LOAD SW
DRIVE
12 Q558
MUTE
OVER LOAD SW
PROTECTOR
BUFFER
Q608
IC601
CENTER
POWER AMP
2
BUFFER
Q604–607
–VE OUT 5
+VE OUT 6
INVERTER
IC701
2
PROTECTOR
DRIVE
3 Q708
4
REAR
POWER AMP
5
PRE DRIVE
Q704–707
REAR
POWER AMP
PRE DRIVE 9
Q754–757
10
11
PROTECTOR
DRIVE
12 Q758
MUTE
PRE AMP
IC602
1
— 51 —
HEADPHONE
RY HP
RELAY DRIVE
Q601
FRONT
SP/A RY
A RELAY DRIVE
Q546
Q509–511
Q559–561
FRONT
SP/B RY
B RELAY DRIVE
Q596
CENTER
CENTER RY
RELAY DRIVE
Q645
OVER LOAD SW
Q609, 610
Q611
OVER LOAD SW
Q709, 710
SURR
SURR RY
RELAY DRIVE
PRT INPUT
BUFFER
Q745
Q547–549
WOOFER
RELAY DRIVE
Q544
D507, 508
RY602
J701
PHONES
TM501
RY501
L
R
RY502
L
R
TM701
RY601
CENTER
CENTER
L
R
REAR
RY701
CNJ701
WIRELESS
REAR
REAR SPEAKER
RY503 J501
WOOFER
WOOFER
AUDIO OUT
SURR
• Signal path
: FM
CENTER RY
H
: SURROUND
SURR RY
RY HP
PRT INPUT
DSP SECTION
AC MUTE
(Page 55)
SP/A RY
I
SP/B RY
PANEL SECTION
(Page 64)
— 52 —
A
FRONT SPEAKERS
B
SURROUND
SPEAKERS
REAR