Read Sony STR-DE335 / STR-SE391 / STR-V323 Service Manual online
STR-DE335/SE391/V323
– 13 –
– 14 –
5-2.
BLOCK DIAGRAM – MAIN Section (2/2) –
POWER AMP
IC701 (1/2)
05
D
(Page 10)
•
SIGNAL PATH
: TUNER (FM)
LCH
WOOFER-RLY,
SP-RLY,
SURR-RLY,
REAR-RLY,
PROTECT
SP-RLY,
SURR-RLY,
REAR-RLY,
PROTECT
WOOFER-RL
Y
SP-RL
Y
SURR-RL
Y
REAR-RL
Y
PROTECT
PRE
DRIVE
DRIVER
CENTER
REAR
TM601
TM701
SPEAKERS FRONT
IMPEDANCE
USE 8 – 16
Ω
L
R
BASS BOOST
FILTER AMP
Q452
BASS BOOST
SWITCH
Q401
FINAL
DRIVER
Q703, 704
OVER LOAD
DETECT
Q720
BIAS
Q701, 702
NF
J253
WOOFER
AUDIO OUT
(Page 10)
G
S701–3–1
PHONES
J741
+VOUT1
–VOUT1
IN1
NF1
–1
–2
5
6
3
2
POWER AMP
IC702 (1/2)
E
(Page 10)
H
(Page 13)
RCH
BASS
BOOST
BOOST
PRE
DRIVE
DRIVER
BASS BOOST
FILTER AMP
Q402
BASS BOOST
SWITCH
Q451
FINAL
DRIVER
Q753, 754
OVER LOAD
DETECT
Q770
BIAS
Q751, 752
NF
+VOUT1
–VOUT1
IN1
NF1
5
6
3
2
POWER AMP
IC701 (2/2)
B
(Page 10)
S-LCH
PRE
DRIVE
DRIVER
FINAL
DRIVER
Q653, 654
OVER LOAD
DETECT
Q670
BIAS
Q651, 652
NF
+VOUT2
–VOUT2
IN2
NF2
9
8
11
12
POWER AMP
IC501 (1/2)
C
(Page 10)
S-RCH
PRE
DRIVE
DRIVER
FINAL
DRIVER
Q503, 504
OVER LOAD
DETECT
Q520
BIAS
Q501, 502
NF
+VOUT1
–VOUT1
IN1
NF1
5
6
3
2
POWER AMP
IC702 (2/2)
F
(Page 10)
CENTER
PRE
DRIVE
DRIVER
FINAL
DRIVER
Q603, 604
PROTECT
SWITCH
Q721 – 723
WOOFER SELECT
RELAY DRIVE
Q367
OVER LOAD
DETECT
Q620
BIAS
Q601, 602
NF
+VOUT2
–VOUT2
IN2
NF2
9
8
11
12
POWER AMP
IC501 (2/2)
RY301
D721
A
(Page 10)
WOOFER
PRE
DRIVE
DRIVER
NF
+VOUT2
–VOUT2
IN2
NF2
9
8
11
12
SPEAKER PROTECT
RELAY DRIVE
Q610
RY601
SPEAKER PROTECT
RELAY DRIVE
Q510
RY551
–1
–2
–2
SPEAKER PROTECT
RELAY DRIVE
Q710
RY701
–1
D725
D728
D727
D726
D723
D312
D311
D203
+
+
+
+
+
+
S701–4–2
SPEAKERS A
Ø ON ø OFF
ON
OFF
S701–3
SPEAKERS A
Ø ON ø OFF
S701–1–1
SPEAKERS B
Ø ON ø OFF
S701–2
SPEAKERS A
Ø ON ø OFF
ON
OFF
ON
OFF
S701–2–1
ON
OFF
S701–2–2
ON
OFF
OFF
ON
S701–1–2
SPEAKERS B
Ø ON ø OFF
OFF
ON
A
A
R
B
B
S701–3–2
+
–
+
–
+
–
+
–
+
–
+
–
+
–
L
(EXCEPT STR-DE335: AEP)
SPEAKERS FRONT
IMPEDANCE
USE 4 – 16
Ω
(STR-DE335: AEP)
SPEAKERS
IMPEDANCE
USE 8 – 16
Ω
(EXCEPT STR-DE335: AEP)
SPEAKERS
IMPEDANCE
USE 4 – 16
Ω
(STR-DE335: AEP)
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