Page 1
STR-DE335/SE391/V323
SERVICE MANUAL
Photo: STR-DE335 US model
SPECIFICATIONS
Audio power specifications (US model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
With 8-ohm load, both channels driven,
from 20a) – 20,000 Hz, rated 100 watts
per channel minimum RMS power, with
no more than 0.09 %b) total harmonic
distortion from 250 milliwatts to rated
output.
STR-SE391:
a) 40Hz
b) 0.5 %
Amplifier section
Power output
Stereo mode STR-DE335/V323
US, Canadian models:
(8 ohms at 20 Hz – 20 kHz
less than 0.09 % total
harmonic distortion)
100 W + 100 W
AEP model:
(DIN 1 kHz, 4 ohms)
80 W + 80 W
Malaysia, Singapore,
Chinese, Australian
models:
Rated power:
(8 ohms at 1 kHz,
THD 0.7 %)
80 W + 80 W
Reference power:
(8 ohms at 20 Hz – 20 kHz,
less than 0.09 % total
harmonic distortion)
70 W + 70 W
E model:
Rated power: (8 ohms at
1kHz, THD 0.7 %)
100 W + 100 W
Surround mode STR-DE335/V323
and 5.1 CH/DVD US, Canadian models:
mode (8 ohms at 1 kHz, THD
(Reference) 0.8%)
Reference power:
(8 ohms at 20 Hz – 20 kHz,
less than 0.09 % total
harmonic distortion)
95 W + 95 W
STR-SE391
(8 ohms at 40 Hz – 20 kHz,
less than 0.5 % total
harmonic distortion)
100 W + 100 W
Front: 80 W/ch
Center: (Pro Logic mode)
80 W
Rear: 80 W/ch
AEP model:
(DIN 1 kHz, 4 ohms)
Front: 70 W/ch
Center: 70 W
(only in PRO LOGIC
mode)
Rear: 70 W/ch
E, Malaysia, Singapore,
Chinese, Australian
models:
Rated power: (8 ohms at
1 kHz, THD 0.7 %)
Front: 80 W/ch
Center: (Pro Logic mode)
80 W
Rear: 80 W/ch
US Model
STR-DE335/SE391
Canadian Model
AEP Model
E Model
Australian Model
STR-DE335
Chinese Model
STR-V323
STR-SE391
(8 ohms at 1 kHz,
THD 0.5 %)
Front: 80 W/ch
Center: (Pro Logic mode)
80 W
Rear: 80 W/ch
Reference power:
(8 ohms 20 Hz – 20 kHz,
less than 0.09 % total
harmonic distortion)
Front: 70 W/ch
Center: (Pro Logic mode)
70 W
Rear: 70 W/ch
RMS power:
(8 ohms at 1 kHz,
THD 10 %)
Front: 100 W/ch
Center: (Pro Logic mode)
100 W
Rear: 100 W/ch
Frequency PHONO: RIAA
response equalization curve ±0.5 dB
(STR-SE391)
TV/SAT (TV/LD), CD,
MD/T APE, VIDEO
5.1 CH/DVD:
10 Hz – 50 kHz ± 1 dB
– Continued on next page –
FM STEREO/FM-AM RECEIVER
MICROFILM
Page 2
SECTION 5
DIAGRAMS
STR-DE335/SE391/V323
5-1. BLOCK DIAGRAM – MAIN Section (1/2) –
(STR-DE335/V323)
5.1 CH/DVD
VIDEO
TV/SAT
VIDEO IN
STR-DE335: US, Canadian,
Australian
TV/LD
VIDEO IN
STR-DE335: AEP, E, Malaysia,
Singapore/STR-V323
VIDEO IN
TV/LD
AUDIO IN
STR-DE335: US, Canadian,
Australian/STR-SE391
STR-DE335: AEP, E, Malaysia,
Singapore/STR-V323
J451
PHONO
IN
(STR-SE391)
FM 75Ω
COAXIAL
AM
VIDEO
ANTENNA
J251
J252 (1/2)
L
R
VIDEO
AUDIO IN
TV/SAT
AUDIO IN
MD/TAPE IN
CD IN
05
12
1
3
J402 (1/2)
L
R
L
R
J401 (1/2)
L
R
L
R
EQ AMP
IC402
FM/AM TUNER PACK
FM-ANT
FM-ANT
GND
AM-ANT
AM-ANT
GND
DET OUT
(STR-DE335: AEP)
VIN3
VIN1
VIN2
R-CH
R-CH
R-CH
R-CH
R-CH
L OUT
R OUT
S.DATA
S.CLK
S.LAT
TUNED
STEREO
SIGNAL
T.MUTE
VIDEO SELECT SWITCH,
VIDEO AMP
IC251
SW2
DO
SW1
13
VIDEO
26
R-CH
TV/SAT
25
R-CH
MD/TAPE
24
R-CH
CD
29
R-CH
PHONO
30
R-CH
TUNER
28
R-CH
R-CH
DATA
CLK
EN1
PLL DATA
TUNED
STEREO
SIGNAL
TUNER-MUTE
MUTE
MUTE
MUTE2
MUTE1
1142
VIDEO
AMP
VIDEO
AMP
IC MUTE
FUNCTION
S1
S2
SWITCH
IC401
4
VOUT1
VOUT2
COM
COM
MUX
10
5
23
27
LEVEL
SHIFT
57 kHz
BAND-PASS
FILTER
RDS DECODER
IC1
J252 (2/2)
20
SHIFT
REGISTER
& LATCH
SC
OUT
8 7
MONITOR
VIDEO OUT
VIDEO OUT
REC COM
VIDEO
CIN
CPU
INTERFACE
COMPARATOR
CLOCKED
5.1 CH/
DVD
VIDEO
REC
R-CH
TAPE
REC
R-CH
S.DATA
S.CLK
S.LAT
WOOFER
FRONT
REAR
CENTER
21
R-CH
22
R-CH
14
15
13
CONTANS LOOP
VARIABLE &
FIXED DIVIDER
OSCILLATOR
& CLOCK
OSCI
13
L
R
L
R
DATA
CLK
EN1
OSCO
14
J501
J402 (2/2)
J401 (2/2)
X1
4.332MHz
R-CH
L
VIDEO
AUDIO
OUT
R
L
MD/TAPE
REC OUT
R
BIPHASE SYMBOL
DECODER
CLOCK
REGENERATION
& SYNC
DOLBY SURROUND
PRO-LOGIC DECODER
IC300
FCC-IN1
14
L-IN
9
R-IN
10
ENABLE
OSC1
48
DIFFERENTIAL
DECODER
L-OUT
R-OUT
S-OUT
C-OUT
DATA
CLK
RDDA
RDCL
RV404
MASTER VOLUME
WOOFER
–1
–4
–2
–5
–6
–3
UP
8
M
7
23
22
25
24
IC201 (1/2)
IC.MUTE
55
58
S1
S2
57
10
S.DATA
9
S.CLK
12
S.CE (LC7822)
13
S.CE (LV1018)
11
PLL.DATA
AUTO-STOP
18
19
STEREO-IN
SIGNAL
24
TUNER-MUTE
45
31
RDS DATA IN
46
RDS CLK IN
MUTING
Q366
MUTING
Q363
MUTING
Q364
MUTING
Q361
MUTING
Q362
MUTING
Q365
RV421
BASS
54
FUNC.MUTE
VOL UP
VOL DOWN
WOOFER-RLY
SP-RLY
SURR-RLY
REAR-RLY
PROTECT
–1
–2
X1
X2
RV422
TREBLE
–1
–2
43423
34
35
36
21
22
14
16
RV423
BALANCE
UP
DOWN
2
X201
4.19MHz
WOOFER-RLY
SP-RLY
SURR-RLY
REAR-RLY
PROTECT
LINE AMP
IC302 (1/2)
LINE AMP
LINE AMP
IC404 (1/2)
–1
LINE AMP
IC404 (2/2)
–2
LINE AMP
IC302 (2/2)
VOLUME
MOTOR DRIVE
IC202
MOTOR
DRIVE
IC502
DOWN
DOLBY SURROUND
PASSIVE DECODER
IC301
18
FCL-IN
LS-OUT
FCR-IN
19
FCLS-IN
20
21
39
CLK
EN2
40
41
42
11
12
13
3
2
4
(STR-DE335/V323)
OSC
41
40
39
38
46
47
45
DATA
2
16
FCRS-IN
LC-INB
LC-INE
CR-OT
CR-IN
L-IN
R-IN
S-IN
DATA
CLK
ENABLE
IC MUTE
S1
S2
DATA
CLK
EN1
EN2
PLL DATA
TUNED
STEREO
SIGNAL
TUNER-MUTE
RS-OUT
L-OUT
R-OUT
SYSTEM CONTROLLER
S-LCH
S-RCH
LCH
RCH
CENTER
A
(Page 11)
B
(Page 11)
C
(Page 11)
D
(Page 11)
E
(Page 11)
F
(Page 11)
G
(Page 11)
• SIGNAL PATH
: TUNER (FM)
: VIDEO
– 11 – – 12 –
Page 3
STR-DE335/SE391/V323
5-2. BLOCK DIAGRAM – MAIN Section (2/2) –
LCH
D
(Page 10)
E
(Page 10)
H
(Page 13)
B
(Page 10)
C
(Page 10)
RCH
BASS
BOOST
S-LCH
S-RCH
BASS BOOST
FILTER AMP
Q452
BASS BOOST
FILTER AMP
Q402
BASS BOOST
SWITCH
Q401
BASS BOOST
SWITCH
Q451
POWER AMP
IC701 (1/2)
IN1
6
NF1
5
POWER AMP
IC702 (1/2)
IN1
6
NF1
5
POWER AMP
IC701 (2/2)
IN2
8
NF2
9
POWER AMP
IC501 (1/2)
IN1
6
NF1
5
POWER AMP
IC702 (2/2)
PRE
DRIVE
PRE
DRIVE
PRE
DRIVE
PRE
DRIVE
DRIVER
NF
DRIVER
NF
DRIVER
NF
DRIVER
NF
+VOUT1
–VOUT1
+VOUT1
–VOUT1
+VOUT2
–VOUT2
+VOUT1
–VOUT1
J741
PHONES
S701–3
SPEAKERS A
Ø ON ø OFF
ON
OFF
S701–3–1
ON
OFF
S701–3–2
TM701
+
–
+
–
+
–
+
–
TM601
+
–
+
–
A
L
B
A
B
L
REAR
R
SPEAKERS FRONT
IMPEDANCE
USE 8 – 16Ω
(EXCEPT STR-DE335: AEP)
SPEAKERS FRONT
IMPEDANCE
USE 4 – 16Ω
(STR-DE335: AEP)
R
SPEAKERS
IMPEDANCE
USE 8 – 16Ω
(EXCEPT STR-DE335: AEP)
SPEAKERS
IMPEDANCE
USE 4 – 16Ω
(STR-DE335: AEP)
ONOFF
ONOFF
–2
S701–2
SPEAKERS A
Ø ON ø OFF
+
S701–2–1
2
3
2
3
12
11
2
3
BIAS
Q701, 702
BIAS
Q751, 752
BIAS
Q651, 652
BIAS
Q501, 502
FINAL
DRIVER
Q703, 704
FINAL
DRIVER
Q753, 754
FINAL
DRIVER
Q653, 654
FINAL
DRIVER
Q503, 504
OVER LOAD
DETECT
Q720
OVER LOAD
DETECT
Q770
OVER LOAD
DETECT
Q670
OVER LOAD
DETECT
Q520
+
+
+
–1
–2
RY701
SPEAKER PROTECT
RELAY DRIVE
Q710
S701–1–1
SPEAKERS B
Ø ON ø OFF
OFF
ON
S701–1–2
SPEAKERS B
Ø ON ø OFF
OFF
ON
SPEAKER PROTECT
RELAY DRIVE
Q510
S701–2–2
–1
–2
RY551
F
(Page 10)
A
(Page 10)
G
(Page 10)
05
CENTER
WOOFER
WOOFER-RLY,
SP-RLY,
SURR-RLY,
REAR-RLY,
PROTECT
IN2
8
NF2
9
POWER AMP
IC501 (2/2)
IN2
8
NF2
9
PRE
DRIVE
PRE
DRIVE
DRIVER
NF
DRIVER
NF
+VOUT2
–VOUT2
+VOUT2
–VOUT2
WOOFER-RLY
12
11
Q601, 602
12
11
WOOFER SELECT
RELAY DRIVE
Q367
BIAS
RY301
FINAL
DRIVER
Q603, 604
OVER LOAD
J253
WOOFER
AUDIO OUT
DETECT
Q620
D721
PROTECT
SWITCH
Q721 – 723
D203
PROTECT
–1
+
D725
D726
D723
SP-RLY
REAR-RLY
SURR-RLY
SPEAKER PROTECT
RELAY DRIVE
Q610
D728
D727
D311
D312
RY601
S701–4–2
SPEAKERS A
Ø ON ø OFF
ON
OFF
– 13 – – 14 –
+
CENTER
–
+
• SIGNAL PATH
: TUNER (FM)
Page 4
5-3. BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –
SYSTEM CONTROLLER, FL DRIVER
IC201 (2/2)
S200
I/u
(POWER)
S201 – 232, 234 – 245
S220, 227: STR-DE335/V323,
S221, 228, 245: STR-SE391,
S231: STR-DE335: AEP
REMOTE CONTROL
RECEIVER
IC203
44
SYS-POWER
28 – 25
49
SIRCS
A/D-1 – A/D-4
7 – 1, 80 – 78
DIG1 – DIG10
S1 – S15
77 – 72, 70 – 62
F1 F2
FLUORESCENT
INDICATOR
TUBE
FL201
RELAY B+
+5V
DISPLAY SECTION B+
DOLBY SURROUND PRO-LOGIC
FM/AM TUNER PACK,
VIDEO AMP (IC251), RDS DECODER (IC1) B+
RDS DECODER:
STR-DE335 AEP model only.
(VIDEO AMP: STR-DE335/V323 only.)
FUNCTION SWITCH (IC401),
AUDIO LINE AMP CIRCUIT
+10V
CIRCUIT (IC300, 301) B+
+5V
+12V
–12V
+5V
REGULATOR
IC804
+10V
REGULATOR
IC805
+5V
REGULATOR
IC803
–12V
REGULATOR
IC802
+12V
REGULATOR
IC801
(STR-DE335: Canadian)
RECT
D820 – 823
T901
POWER
TRANSFORMER
STR-DE335/SE391/V323
STR-DE335: AEP, Malaysia,
Singapore, Australian/STR-V323
CNJ903
AC OUTLET
SWITCHED 100W MAX
(STR-DE335: E)
J911
AC OUTLET
SWITCHED 100W MAX
H
(Page 11)
D237
REAR
D233
CENTER
Q236
Q234 – 236
LED DRIVE
BASS BOOST
D235
NAME
Q235
BASS BOOST
5.1CH/DVD
05
EFFECT/
DELAY
D236
D228
D240
MUTING
D230
CINEMA
D231
VIRTUAL
D232
MUSIC
D239
D236
Q234
B+ SWITCH
Q233
B+ SWITCH
Q237
D234
SET UP
Q239
LED DRIVE
Q242
D421
LED DRIVE
Q241
LED DRIVE
Q230
LED DRIVE
Q231
LED DRIVE
Q232
LED DRIVE
Q240
+5V
D241
37
LED SELECT
LED3
61
60
LED2
LED1
59
BASS BOOST
53
MUTING LED
50
PROLOGIC LED
38
C.STUDIO LED
39
40
HALL LED
5.1CH LED
51
BRIDGE-RLY
POWER-RLY
RESET
STOP
15
23
SYSTEM CONTROLLER
(IC201) B+
17
47
FL DRIVER (IC201) B–
+5V
RESET SWITCH
Q201, 202
–24V
D201, 202
POWER AMP
CIRCUIT
(STR-DE335: US, Canadian, E/STR-SE391)
B+
B–
EXCEPT STR-DE335: US,
–24V
REGULATOR
Q801
REGULATOR
Canadian, E/STR-SE391
+5.6V
Q951
RECT
D803
RECT
D802
BRIDGE
RELAY DRIVE
Q809
RESET SIGNAL GENERATOR,
+5.6V REGULATOR
IC950
OUTC
3
VSC
2
RESET
8
VSA
7
EXCEPT STR-DE335:
Canadian
–1
–2
RY801
RY851
RY852
(STR-DE335: Canadian)
5
V+
VREF
VSB
AC
LATCH
DET
POWER ON/OFF
RELAY DRIVE
6
TO FL201
Q802
RECT
D810 – 813
RECT
D814, 815
F1
F2
RY901
T902
POWER
TRANSFORMER
(STR-DE335: E)
VOLTAGE
SELECT SWITCH
S901 (1/2)
S901
VOLTAGE
SELECTOR
(EXCEPT STR-DE335: E)
(STR-DE335: E)
VOLTAGE
SELECT SWITCH
S901 (2/2)
STR-DE335: US, Canadian/
STR-SE391
J911
AC OUTLET
SWITCHED 120W/1A MAX
AC 120V 60 Hz
STR-DE335: AEP, Malaysia,
Singapore, Australian/STR-V323
CNJ903
STR-DE335: US,
Canadian, E
J911
(STR-SE391)
J911
AC IN
– 15 – – 16 –
Page 5
STR-DE335/SE391/V323
5-7. SCHEMATIC DIAGRAM – MAIN Board (1/4)/REAR AMP Board – • See page 42 for IC Block Diagrams.
(Page 39)
(Page 39)
(Page
40)
(Page 40)
(Page 27)
The components identified by
mark ! or dotted line with
mark ! are critical for safety.
Replace only with part number specified.
– 25 – – 26 –
Les composants identifiés par une
marque ! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
(Page 30)
Page 6
5-8. SCHEMATIC DIAGRAM – MAIN Board (2/4)/SP SW Board –
STR-DE335/SE391/V323
(Page 26)
(Page 31)
The components identified by
mark ! or dotted line with
mark ! are critical for safety.
Replace only with part number specified.
Les composants identifiés par une
marque ! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
– 27 – – 28 –
Page 7
STR-DE335/SE391/V323
5-9. SCHEMATIC DIAGRAM – MAIN Board (3/4) – • See page 18 for Waveforms. • See page 41 for IC Block Diagrams.
(Page 26)
(Page 39)
(Page 39)
(Page 35)
(Page 31)
– 29 –
– 30 –
Page 8
5-10. SCHEMATIC DIAGRAM – MAIN Board (4/4)/SECONDARY Board/STANDBY Board/PRIMARY Board/VOL SEL Board – • See page 43 for IC Block Diagram.
(Page 27)
STR-DE335/SE391/V323
(Page 30)
– 31 – – 32 –
The components identified by
mark ! or dotted line with
mark ! are critical for safety.
Replace only with part number specified.
Les composants identifiés par une
marque ! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
Page 9
5-12. SCHEMATIC DIAGRAM – PANEL Section – • See page 18 for Waveform. • See page 43 for IC Block Diagram.
STR-DE335/SE391/V323
(Page 29)
(Page 39)
EXCEPT DE335:
MY,SP,AUS/
V323
EXCEPT DE335:
MY,SP,AUS/
V323
(DE335:MY,SP,AUS/V323)
(DE335:MY,SP,AUS/V323)
– 35 – – 36 –
The components identified by
mark ! or dotted line with
mark ! are critical for safety.
Replace only with part number specified.
Les composants identifiés par une
marque ! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
Page 10
5-14. SCHEMATIC DIAGRAM – VOLUME Board/TONE Board/VIDEO Board/PHONO Board – • See page 43 for IC Block Diagram.
(Page 35)
(Page 25)
STR-DE335/SE391/V323
(Page 29)
(Page 25)
(Page 25)
(Page 29)
(Page 25)
The components identified by
mark ! or dotted line with
mark ! are critical for safety .
Replace only with part number specified.
Les composants identifiés par une
marque ! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
– 39 –
– 40 –
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