Sony STR-DE445 / STR-DE545 / STR-SE501 Service Manual ▷ View online
1
STR-DE445/DE545/SE501
US Model
STR-DE445/DE545/SE501
Canadian Model
AEP Model
UK Model
STR-DE445/DE545
E Model
Australian Model
Chinese Model
PX Model
STR-DE545
FM STEREO FM-AM RECEIVER
SERVICE MANUAL
SPECIFICATIONS
Dolby Laboratories Licensing Corporation.
“DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC”
are trademarks of Dolby Laboratories Licensing Corporation.
“DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC”
are trademarks of Dolby Laboratories Licensing Corporation.
Photo: STR-DE445
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 8
DISTORTION
With 8
Ω loads, both channels driven, from
20 – 20,000 Hz; rated 100
a)
W per channel
minimum RMS power, with no more than
0.09% total harmonic distortion from 250
mW to rated output (US model only).
STR-DE445:
a) 80 W
0.09% total harmonic distortion from 250
mW to rated output (US model only).
STR-DE445:
a) 80 W
Amplifier section
Rated Power Output at Stereo mode
US model:
(8
(8
Ω 20 Hz – 20 kHz, THD
0.09 % )
EXCEPT US:
(8
EXCEPT US:
(8
Ω 1 kHz, THD 0.7 %)
STR-DE545/SE501:
100 W + 100 W
STR-DE445:
80 W + 80 W
100 W + 100 W
STR-DE445:
80 W + 80 W
Reference Power Output
(8
Ω at 1 kHz, THD 0.7 %)
STR-DE545/SE501:
Front: 100 W + 100 W
Center: 100 W
Rear: 100 W + 100 W
STR-DE445:
Front: 80 W + 80 W
Center: 80 W
Rear: 80 W + 80 W
Front: 100 W + 100 W
Center: 100 W
Rear: 100 W + 100 W
STR-DE445:
Front: 80 W + 80 W
Center: 80 W
Rear: 80 W + 80 W
Frequency response
CD, MD/TAPE, DVD/LD, TV/
SAT, VIDEO, AUX:
10 Hz – 50 kHz +0.5/–2 dB
(with sound field, tone, and
bass boost bypassed)
SAT, VIDEO, AUX:
10 Hz – 50 kHz +0.5/–2 dB
(with sound field, tone, and
bass boost bypassed)
Inputs (Analog)
5.1 CH INPUT, CD, DVD/LD,
MD/TAPE, TV/SAT, VIDEO,
AUX:
Sensitivity: 250 mV
Impedance: 50 k
MD/TAPE, TV/SAT, VIDEO,
AUX:
Sensitivity: 250 mV
Impedance: 50 k
Ω
S/N
b)
: 96 dB (A, 250 mV
c)
)
b) Input short.
c) Weighted nework, input level.
c) Weighted nework, input level.
Inputs (Digital)
DVD/LD (coaxial):
Sensitivity: —
Impedance: 75
Sensitivity: —
Impedance: 75
Ω
S/N: 100 dB (A, 20 kHz LPF)
DVD/LD, TV/SAT* (Optical):
Sensitivity: —
Impedance: —
S/N: 100 dB (A, 20 kHz LPF)
DVD/LD, TV/SAT* (Optical):
Sensitivity: —
Impedance: —
S/N: 100 dB (A, 20 kHz LPF)
*) STR-DE545 and STR-SE501 only.
Outputs
MD/TAPE, (REC OUT); VIDEO
(AUDIO OUT):
Voltage: 250 mV,
Impedance: 10 k
(AUDIO OUT):
Voltage: 250 mV,
Impedance: 10 k
Ω
SUB WOOFER:
Voltage: 2 V
Impedance: 1 k
Voltage: 2 V
Impedance: 1 k
Ω
PHONES:
Accepts low- and high-
impedance headphones
Accepts low- and high-
impedance headphones
BASS BOOST
+6 dB at 70 Hz
TONE
±6 dB at 100 Hz and 10 kHz
Sampling Frequency
48 kHz
FM tuner section
Tuning range
87.5 – 108.0 MHz
Antenna terminals 75
Ω, unbalanced
Sensitivity
Mono: 18.3 dBf, 2.2 µV/75
Ω
Stereo: 38.3 dBf, 22.5 µV/75
Ω
Usable sensitivity
11.2 dBf, 1 µV/75
Ω
S/N
Mono: 76 dB
Stereo: 70 dB
Stereo: 70 dB
Harmonic distortion at 1 kHz
Mono: 0.3 %
Stereo: 0.5 %
Stereo: 0.5 %
Separation
45 dB at 1 kHz
Frequency response
30 Hz – 15 kHz
+0.5/–2 dB
+0.5/–2 dB
Selectivity
60 dB at 400 kHz
— Continued on next page —
2
Parts No.
MODEL IDENTIFICATION
— BACK PANEL —
MODEL
PARTS No.
DE545: US model
4-226-802-0s
DE545: Canadian model
4-226-802-1s
DE545: Australian model
4-226-802-2s
DE545: E, PX model
4-226-802-3s
DE545: Malaysia, Singapore model
4-226-802-4s
DE545: Chinese model
4-226-802-5s
DE545: AEP, UK, CIS model
4-226-802-6s
DE545: Taiwan model
4-226-802-7s
DE445: US model
4-226-808-0s
DE445: Canadian model
4-226-808-1s
DE445: AEP, UK model
4-226-808-2s
DE445: CIS model
4-226-808-3s
SE501: US model
4-227-063-0s
AM tuner section
Tuning range
With 10-kHz tuning scale: 530 – 1,710 kHz
d)
With 9-kHz tuning scale: 531 – 1,710 kHz
d)
Antenna
Loop antenna
Usable sensitivity
50dB/m (at 1,000kHz or 999kHz)
S/N
54dB (at 50mV/m)
Harmonic distortion
0.5% (50mV/m, 400kHz)
Selectivity
At 9kHz: 35dB
At 10kHz: 40dB
At 10kHz: 40dB
d) You can change the AM tuning interval to 9kHz. After tuning in any AM station,
turn off the receiver. Hold down the TUNING + button and press the @/1 button.
All preset stations will be erased when you change the tuning interval. To reset the
scale to 10 kHz, repeat the procedure.
All preset stations will be erased when you change the tuning interval. To reset the
scale to 10 kHz, repeat the procedure.
Video section
Inputs
Video: 1Vp-p 75
Ω
S-video*:
Y: 1Vp-p 75
Y: 1Vp-p 75
Ω
C: 0.286Vp-p 75
Ω
Outputs
Video: 1Vp-p 75
Ω
S-video*:
Y: 1Vp-p 75
Y: 1Vp-p 75
Ω
C: 0.286Vp-p 75
Ω
* STR-DE545 and STR-SE501 only.
General
System
Tuner section:
PLL
PLL
quartz-locked digital synthesizer system
Preamplifier section:
Low-noise NF type equalizer
Power amplifier section:
Pure-complementary SEPP
Low-noise NF type equalizer
Power amplifier section:
Pure-complementary SEPP
Power requirements
US, Canadian model: 120V AC, 60Hz
Taiwan model: 110V AC, 60Hz
Chinese, Singapore, Malaysia model:
220 – 230V AC, 50/60Hz
AEP, UK, CIS model: 230V AC, 50/60Hz
Australian model: 240V AC, 50/60Hz
E, PX model: 120V or 220V or 240V AC,
50/60Hz
Taiwan model: 110V AC, 60Hz
Chinese, Singapore, Malaysia model:
220 – 230V AC, 50/60Hz
AEP, UK, CIS model: 230V AC, 50/60Hz
Australian model: 240V AC, 50/60Hz
E, PX model: 120V or 220V or 240V AC,
50/60Hz
Power consumption
STR-DE545/SE501:
US model: 190W
AEP, UK model: 220W
STR-DE445:
US model: 185W
AEP, UK model: 160W
US model: 190W
AEP, UK model: 220W
STR-DE445:
US model: 185W
AEP, UK model: 160W
AC outlets (STR-DE545 and STR-SE501 only)
US model:
1switched, total 120W/1A Max
EXCEPT US:
1switched, max 100W
1switched, total 120W/1A Max
EXCEPT US:
1switched, max 100W
Dimensions
430
× 303 × 157 mm
(17
× 12 × 6
1
/
4
inches)
including projecting parts and controls
Mass (Aporox.)
STR-DE545: 7.9kg (17 lbs. 7 oz)
STR-DE445: 7.7kg (16 lbs. 16 oz)
STR-SE501: 8.2kg (18 lbs. 2 oz)
STR-DE445: 7.7kg (16 lbs. 16 oz)
STR-SE501: 8.2kg (18 lbs. 2 oz)
Supplid accessories
FM wire antenna (1)
AM loop antenna (1)
R6 (size-AA) batteries (2)
STR-DE545 and STR-SE501 only
Remote Commander RM-PP404 (remote) (1)
Operating instructions of the remote (1)
Operating instructions of CONTROLA1 II (1)
STR-DE445 only
Remote Commander RM-U304 (remote) (1)
AM loop antenna (1)
R6 (size-AA) batteries (2)
STR-DE545 and STR-SE501 only
Remote Commander RM-PP404 (remote) (1)
Operating instructions of the remote (1)
Operating instructions of CONTROLA1 II (1)
STR-DE445 only
Remote Commander RM-U304 (remote) (1)
Design and specifications are subject to change without notice.
3
TABLE OF CONTENTS
1. GENETAL
........................................................................... 4
2. TEST MODE
...................................................................... 6
3. DIAGRAMS
3-1.
Circuit Boards Location ..................................................... 7
3-2.
Block Diagrams .................................................................. 8
• Main Section .................................................................... 8
• Power Section .................................................................. 9
• Main Section .................................................................... 8
• Power Section .................................................................. 9
3-3.
Printed Wiring Board — Digital Section — .................... 10
3-4.
Schematic Diagram — Digital Section — ....................... 11
3-5.
Printed Wiring Board — Main Section — ....................... 12
3-6.
Schematic Diagram — Main (1/3) Section — ................. 13
3-7.
Schematic Diagram — Main (2/3) Section — ................. 14
3-8.
Schematic Diagram — Main (3/3) Section — ................. 15
3-9.
Printed Wiring Board — Display Section — ................... 16
3-10. Schematic Diagram — Display Section — ..................... 17
3-11. Printed Wiring Board — Video/Key Section — ............... 18
3-12. Schematic Diagram — Video/Key Section — ................. 19
3-13. Printed Wiring Board — Power Supply Section — ......... 20
3-14. IC Pin Function Description ............................................. 21
3-15. IC Block Diagrams ........................................................... 28
3-11. Printed Wiring Board — Video/Key Section — ............... 18
3-12. Schematic Diagram — Video/Key Section — ................. 19
3-13. Printed Wiring Board — Power Supply Section — ......... 20
3-14. IC Pin Function Description ............................................. 21
3-15. IC Block Diagrams ........................................................... 28
4. EXPLODEO VIEWS
4-1.
Front Panel Section .......................................................... 30
4-2.
Chassis Section ................................................................. 32
5. ELECTRICAL PARTS LIST
....................................... 34
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS AP-
PEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS AP-
PEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
SAFETY CHECK-OUT
(US model)
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
Fig. A. Using an AC voltmeter to check AC leakage.
0.15
µF
To Exposed Metal
Parts on Set
Parts on Set
1.5k
Ω
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
Earth Ground
4
SECTION 1
GENERAL
1
@/1 button
2
INPUT MODE button
3
DIMMER button
4
DISPLAY button
5
5.1CH INPUT button
6
CHINEMA STUDIO A button
CHINEMA STUDIO B button
CHINEMA STUDIO C button
CHINEMA STUDIO B button
CHINEMA STUDIO C button
7
MULTI CHANNEL DECODING indicator
8
<, > buttons
9
BASS BOOST indicator
TONE indicator
TONE indicator
0
PRESET TUNING +/– buttons
TUNING +/– buttons
FM/AM button
FM MODE button
RDS EON button (AEP, UK, CIS model)
RDS PTY button (AEP, UK, CIS model)
TUNING +/– buttons
FM/AM button
FM MODE button
RDS EON button (AEP, UK, CIS model)
RDS PTY button (AEP, UK, CIS model)
qa
SHIFT button
MEMORY button
MEMORY button
qs
TONE button
qd
BASS BOOST button
qf
MUTING button
qg
MASTER VOLUME knob
qh
SET UP button
qj
NAME button
qk
ENTER button
ql
Jog dial
w;
BASS/TREBLE button
wa
SUR button
ws
LEVEL button
wd
A.F.D button/indicator
2CH button/indicator
MODE button/indicator
2CH button/indicator
MODE button/indicator
wf
VIDEO button
DVD/LD button
TV/SAT button
MD/TAPE button
CD button
TUNER button
AUX button
DVD/LD button
TV/SAT button
MD/TAPE button
CD button
TUNER button
AUX button
wg
PHONES jack
wh
SPEAKER A button
SPEAKER B button (DE545, SE501 model)
SPEAKER B button (DE545, SE501 model)
FRONT PANEL
1
2
3
4
5
6
7
8
9
0
qa
qs
qd
qf
qg
qk
ql
qjqh
ws
wd
wf
wg
wh
waw;
PHOTO: STR-DE445