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Sony STR-DE245/DE345 Service Manual

Sony STR-DE245/DE345 Service Manual

Sony stereo receiver user manual

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STR-DE245/DE345
SERVICE MANUAL
Ver 1.0 2000. 02
Manufactured under license from Dolby Laboratories Licensing
Corporation.
"DOLBY" the double-D symbol ; "AC-3" and "Pro Logic" are
trademarks of Dolby Laboratories Licensing Corporation.
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 8-ohm load, both channels driven, from 20 –
20,000 Hz rated 100 watts per channel minimum
RMS power, with no more than 0.09% total
harmonic distortion from 250 milliwatts to rated
output.
Amplifier section
Rated Power Output at
(8
at 20 Hz – 20 kHz,
Stereo Mode
THD 0.09 %)
100W + 100W
Reference Power Output
(8 at 1 kHz, THD 0.7%)
Front: 100 W + 100 W
Center: 100 W
Rear: 100 W + 100 W
Frequency response
TV/SAT, CD, MD/TAPE,
VIDEO, 5.1CH/DVD
10 – 50 kHz
Inputs
Sensitivity
Impedance
CD,
5.1CH/
DVD,
50
MD/TAPE,
150 mV
kilohms
TV/SAT,
VIDEO
Photo: STR-DE345
SPECIFICATIONS
Outputs
Muting
BASS BOOST
TONE
Tuner section
FM Stereo, FM/AM superheterodyne tuner
+0.5
dB
–2.0
FM tuner section
Tuning range
S/N
Antenna terminals
Intermediate frequency
Sensitivity
85 dB
Usable sensitivity
S/N
Harmonic
distortion at 1 kHz
Separation
Frequency response
Selectivity
Australian Model
AM tuner section
MD/TAPE REC OUT:
Voltage: 150 mV,
Tuning range
Impedance: 10 kilohms
VIDEO AUDIO OUT:
Voltage: 150 mV,
Impedance: 10 kilohms
Antenna
SUB WOOFER:
Intermediate frequency
Voltage: 2 V
Usable sensitivity
Impedance: 1 kilohms
PHONES: Accepts low
S/N
and high impedance
Harmonic distortion
headphones
Selectivity
Full mute
+6 dB at 70 Hz
±6 dB at 100 Hz and
* You can change the AM tuning interval between 9
10 kHz
kHz and 10 kHz. Turn off the receiver and press
the ?/1 (power) for more than 4 seconds until
"INITIAL" appears.
1) After turning in any AM station, turn off the
receiver.
2) Hold down PRESET TUNING + button and
87.5 – 108.0 MHz
press the ?/1 (power) button .
75 , unbalanced
"9 k STEP" appears.
10.7 MHz
Mono: 18.3 dBf, 4.5 µV
To change to 10 k Step, repeat step 1 and 2
Stereo: 38.3 dBf, 45 µV
until "10 k STEP" appears. Note that all preset
11.2 dBf, 2 µV (IHF)
stations, index names and sound field are
Mono: 76 dB
cleared after you make the procedure above.
Stereo: 70 dB
Mono: 0.3 %
Stereo: 0.5 %
45 dB at 1 kHz
+0.5
30 Hz –15 kHz
dB
–2.0
60 dB at 400 kHz
FM STEREO FM-AM RECEIVER
AEP Model
UK Model
E Model
STR-DE245/DE345
US Model
Canadian Model
Chinese Model
PX Model
STR-DE345
10 kHz interval*
530 – 1,710 kHz
9 kHz interval
531 – 1,710 kHz
Loop antenna
450 kHz
50 dB/m (at 1,000 kHz
or 999 kHz)
54 dB (at 50 mV/m)
0.5 % (50 mV/m, 400
Hz)
At 10 kHz: 40 dB
At 9 kHz: 35 dB
— Continued on next page —

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Summary of Contents for Sony STR-DE245/DE345

  • Page 1 STR-DE245/DE345 SERVICE MANUAL Ver 1.0 2000. 02 Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” the double-D symbol ; “AC-3” and “Pro Logic” are trademarks of Dolby Laboratories Licensing Corporation. POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 8-ohm load, both channels driven, from 20 –...
  • Page 2 VIDEO section Inputs VIDEO, TV/SAT, 5.1CH/DVD: 1 Vp-p 75 Outputs VIDEO, MONITOR: 1 Vp-p 75 General System Tuner section: PLL quartz-locked digital synthesizer system Preamplifier section: Low-noise NF type equalizer Power amplifier section: Pure-complementary SEPP Power requirements 120 V AC, 60 Hz Power consumption 235 W Dimensions...
  • Page 3: Table Of Contents

    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.
  • Page 4: General

    Front Panel 1 I/1 (POWER) button 2 SPEAKERS ON/OFF SWITCH button 3 PHONE jack 4 VIDEO button TV/SAT button 5.1CH/DVD button MD/TAPE button CD button TUNER button 5 SOUND FIELD ON/OFF, MODE + , – buttons BASS + , – buttons TREBLE + , –...
  • Page 5 This section is extracted from instruction manual. Rear Panel...
  • Page 6: Test Mode

    SOFTWARE VERSION DISPLAY MODE * The software version is displayed. * Procedure: While depressing the TUNER and the VIDEO buttons simultaneously, press the power [?/1] button to turn on the main power. The model name, destination and the software version are displayed.
  • Page 7: Diagrams

    SECTION 3 DIAGRAMS 3-1. BLOCK DIAGRAM TUNER UNIT L OUT R OUT R-CH AM DET OUT PLL DATA DATA OUT S DATA S DATA S CLK S CLK S CE SLAT SIGNAL SIGNAL STEREO STEREO AUTO STOP TUNED T MUTE T MUTE J401 OUTPUT...
  • Page 8: Ic Block Diagrams

    3-2. IC BLOCK DIAGRAMS IC281 NJM2279 (VIDEO BOARD) 14 13 12 10 9 8 5 6 7 IC701, IC702 uPC2581V (MAIN BOARD) IC950 BIAS CIRCUIT PROTECTOR REG DRIVE DRIVE DRIVE DRIVE 2 3 4 5 6 8 9 10 11 12 13 14 15 + –...
  • Page 9: Circuit Boards Location

    Pin No. Pin Name REAR-RY Control rear relay on/off CTR-RY Control center relay FRONT-RY Control speaker relay H/P-RY Control Headphone relay WOOFER RY Control Woofer relay SYS.POWER Detect power switch key P115 — P114 — FUNC.MUTE Control muting circuit P112 —...
  • Page 10: Printed Wiring Board Main Section

    STR-DE245/DE345 • Refer to page 9 for Circuit Boards Location. 3-5. PRINTED WIRING BOARD MAIN SECTION (Page 18) (Page 14) • Semiconductor Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location...
  • Page 11: Schematic Diagram Main Section (1/3)

    EA, PX, AUS, MX, SP, MY, AR, CH CIS, EE CIS, EE/DE345: AEP, CIS, EE CIS, EE E, EA, MX, SP, MY EA, MX, SP, MY DE245: AEP, UK, CIS, EE DE345: AEP, CIS, EE STR-DE245/DE345 C706 330p C606 330p DE245: AEP, UK, CIS, EE DE345:...
  • Page 12: Schematic Diagram Main Section (2/3)

    STR-DE245/DE345 3-7. SCHEMATIC DIAGRAM MAIN SECTION (2/3) CND, E, EA, PX AEP, CIS, EE C714 0.01 C764 2: R529, R674, R740, R777 22: DE245 24: DE345: CIS, EE 30: EXCEPT CN792 CIS, EE US, CND, E, EA, AUS, MX, SP, MY, AR, CH...
  • Page 13: Schematic Diagram Main Section (3/3)

    DE245: AEP, UK, CIS, EE DE345 (Page 15) (Page 15) (Page 18) STR-DE245/DE345 (Page 17) *1: C803, C804 10000/50V: DE245: E, EA/DE345: US, CND, E, EA 6800/50V: DE245: AEP, UK, CIS, EE, SP, MY, MX, AUS 8200/50V: DE345: AUS, SP, MY, MX, AR...
  • Page 14: Printed Wiring Board Panel Section

    STR-DE245/DE345 • Refer to page 9 for Circuit Boards Location. 3-9. PRINTED WIRING BOARD PANEL SECTION (Page 10) S236 S237 DE245: AEP, UK, CIS, EE DE345: AEP, CIS, EE DE245: AEP, UK, CIS, EE DE345: AEP, CIS, EE • Semiconductor Location Ref.
  • Page 15: Schematic Diagram Panel Section

    AEP, UK, CIS, EE AEP, CIS, EE US, CND, E, EA, PX, MX, AR US, CND DE245: AEP, UK, CIS, EE DE345: AEP, CIS, EE R262 R263 3.3k 4.7k S236 S237 DE245: AEP, UK, CIS, EE DE345: AEP, CIS, EE STR-DE245/DE345...
  • Page 16: Printed Wiring Board Power Section

    STR-DE245/DE345 • Refer to page 9 for Circuit Boards Location. 3-11. PRINTED WIRING BOARD POWER SECTION (Page 14) DE245: E, EA/DE345: E, EA, PX DE245: E, EA DE345: E, EA, PX EXCEPT DE245: E, EA/DE345: E, EA, PX (Page 10)
  • Page 17: Schematic Diagram Power Section

    POWER SECTION • Refer to page 8 for IC Block Diagrams. (Page 15) EXCEPT DE245: E, EA/DE345: E, EA, PX (Page 13) (Page 13) *1: F901 2A: E, EA 6.3A: US, CND 1.25A: EXCEPT STR-DE245/DE345 DE245: E, EA/DE345: E, EA, PX...
  • Page 18: Printed Wiring Board Video Section

    STR-DE245/DE345 • Refer to page 9 for Circuit Boards Location. 3-13. PRINTED WIRING BOARD VIDEO SECTION (Page 10) 3-14. SCHEMATIC DIAGRAM VIDEO SECTION • Refer to page 8 for IC Block Diagrams. (Page 13)
  • Page 19: Exploded Views

    A-4473-331-A DISPLAY BOARD, COMPLETE (DE345:MX) A-4473-333-A DISPLAY BOARD, COMPLETE (DE345:AR) (DE345:E,EA,PX,AUS,MX,SP,MY,AR) A-4473-336-A DISPLAY BOARD, COMPLETE (DE245:MX) 1-676-803-11 TUNING BOARD 1-676-804-11 HEADPHONE BOARD 4-996-698-81 EMBLEM, SONY 4-996-683-61 BUTTON (POWER) 4-977-593-01 RING(DIA. 50), ORNAMENTAL 4-226-445-01 BUTTON (S) (DE245:AUS,SP,MY/ DE345:US,CND,E,EA,PX,AUS,MX,SP,MY,AR,CH) DE345:US,CND,E,EA,PX,AUS,MX,SP,MY,AR,CH) 4-226-445-31 BUTTON (S)
  • Page 20: Chassis Section

    4-2. CHASSIS SECTION US,CND,MX E,PX supplied supplied not supplied T901 not supplied not supplied not supplied Ref. No. Part No. 4-226-458-01 SUB-MOLD (E3) X-4951-458-1 FOOT ASSY (DE245:AUS,E,EA,SP,MY/ X-4952-804-1 FOOT ASSY X-4952-941-1 FOOT ASSY (DE245:MX) 1-676-800-11 SECONDARY BOARD A-4428-270-A STAND BY BOARD, COMPLETE E,EA,PX A-4428-279-A STAND BY BOARD, COMPLETE (DE245:MX) AEP,UK,E,...
  • Page 21: Electrical Parts List

    NOTE: • Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. • -XX, -X mean standardized parts, so they may have some difference from the original one.
  • Page 22 DISPLAY Ref. No. Part No. Description < RESISTOR > R200 1-249-433-11 CARBON R201 1-249-433-11 CARBON R202 1-249-429-11 CARBON R203 1-249-429-11 CARBON R204 1-249-429-11 CARBON R205 1-249-441-11 CARBON R206 1-249-429-11 CARBON R207 1-249-429-11 CARBON R208 1-249-429-11 CARBON R213 1-249-429-11 CARBON R214 1-249-429-11 CARBON R215 1-249-429-11 CARBON...
  • Page 23 Ref. No. Part No. Description S212 1-771-410-21 SWITCH, TACTILE (MENU -) S213 1-771-410-21 SWITCH, TACTILE (TREBLE +) S214 1-771-410-21 SWITCH, TACTILE (TREBLE -) S215 1-771-410-21 SWITCH, TACTILE (BASS +) S216 1-771-410-21 SWITCH, TACTILE (BASS -) S217 1-771-410-21 SWITCH, TACTILE (TUNER) S218 1-771-410-21 SWITCH, TACTILE (CD) S219...
  • Page 24 MAIN Ref. No. Part No. Description C346 1-128-809-11 CERAMIC C347 1-128-809-11 CERAMIC C348 1-126-961-11 ELECT C349 1-130-494-11 MYLAR C350 1-137-367-11 MYLAR C351 1-130-494-11 MYLAR C352 1-126-934-11 ELECT C353 1-164-159-21 CERAMIC C354 1-135-518-11 CERAMIC C355 1-128-809-11 CERAMIC C356 1-128-805-21 CERAMIC C357 1-162-203-31 CERAMIC C358 1-128-809-11 CERAMIC...
  • Page 25 Ref. No. Part No. Description C721 1-126-934-11 ELECT C722 1-126-964-11 ELECT C724 1-126-964-11 ELECT C726 1-127-876-21 CERAMIC C734 1-126-964-11 ELECT C736 1-127-876-21 CERAMIC C740 1-128-582-11 ELECT C741 1-128-582-11 ELECT C742 1-126-925-11 ELECT C743 1-126-925-11 ELECT C751 1-126-794-11 ELECT C753 1-104-665-11 ELECT C755 1-102-233-00 CERAMIC C757...
  • Page 26 MAIN Ref. No. Part No. Description D731 8-719-991-33 DIODE 1SS133T-77 D732 8-719-991-33 DIODE 1SS133T-77 D734 8-719-991-33 DIODE 1SS133T-77 D735 8-719-991-33 DIODE 1SS133T-77 D736 8-719-991-33 DIODE 1SS133T-77 D757 8-719-991-33 DIODE 1SS133T-77 D791 8-719-991-33 DIODE 1SS133T-77 D801 8-719-934-13 DIODE HZS24-1LTD D802 8-719-072-05 DIODE RBV-602LF-A D804 8-719-109-85 DIODE MTZJ-T-77-5.1B D820...
  • Page 27 Ref. No. Part No. Description Q791 8-729-119-78 TRANSISTOR 2SC2785TP-HFE Q801 8-729-140-97 TRANSISTOR 2SB734-T-34 < RESISTOR > 1-249-421-11 CARBON (DE245:AEP,UK,CIS,EE/DE345:AEP,CIS,EE) 1-247-807-31 CARBON (DE245:AEP,UK,CIS,EE/DE345:AEP,CIS,EE) 1-247-807-31 CARBON (DE245:AEP,UK,CIS,EE/DE345:AEP,CIS,EE) R301 1-249-439-11 CARBON R302 1-249-436-11 CARBON R306 1-249-441-11 CARBON R307 1-249-441-11 CARBON R308 1-249-436-11 CARBON R309 1-249-441-11 CARBON R310...
  • Page 28 MAIN Ref. No. Part No. Description R601 1-249-417-11 CARBON R602 1-249-439-11 CARBON R603 1-249-417-11 CARBON (DE345:US,CND,E,EA,PX,AUS,MX,SP,MY,AR,CH) R603 1-249-421-11 CARBON R603 1-249-419-11 CARBON (DE245:US,CND,AUS,E,EA,MX,SP,MY/DE345:AEP,CIS,EE) R604 1-249-439-11 CARBON R610 1-249-421-11 CARBON R611 1-249-440-11 CARBON R613 1-249-414-11 CARBON 0 R614 1-249-408-11 CARBON 0 R615 1-249-408-11 CARBON 0 R616 1-234-182-11 ENCAPSULATED COMPONENT...
  • Page 29 Ref. No. Part No. Description R741 1-216-454-11 METAL OXIDE R741 1-215-867-00 METAL OXIDE R743 1-249-425-11 CARBON R744 1-249-431-11 CARBON R745 1-249-421-11 CARBON R746 1-247-863-91 CARBON R747 1-249-425-11 CARBON R751 1-249-417-11 CARBON R752 1-249-439-11 CARBON R753 1-249-412-11 CARBON (DE345:US,CND,E,EA,PX,AUS,MX,SP,MY,AR,CH) R753 1-249-415-11 CARBON (DE245:AEP,UK,CIS,EE/DE345:AEP,CIS,EE) R753 1-249-414-11 CARBON...
  • Page 30 STANDBY TUNING Ref. No. Part No. Description A-4428-270-A STANDBY BOARD, COMPLETE ************************ A-4428-279-A STANDBY BOARD, COMPLETE (DE245:MX) ************************ A-4428-388-A STANDBY BOARD, COMPLETE (DE345:AUS) ************************ A-4428-391-A STANDBY BOARD, COMPLETE ************************ A-4428-392-A STANDBY BOARD, COMPLETE (DE345:CH) ************************ A-4428-395-A STANDBY BOARD, COMPLETE (DE345:E,EA,PX) ************************ A-4428-402-A STANDBY BOARD, COMPLETE (DE245:AUS) ************************...
  • Page 31 Ref. No. Part No. Description R258 1-249-415-11 CARBON R259 1-249-417-11 CARBON R260 1-249-419-11 CARBON R261 1-249-421-11 CARBON R262 1-247-843-11 CARBON (DE245:AEP,UK,CIS,EE/DE345:AEP,CIS,EE) R263 1-249-425-11 CARBON (DE245:AEP,UK,CIS,EE/DE345:AEP,CIS,EE) < SWITCH > S226 1-771-410-21 SWITCH, TACTILE (PRESET -) S227 1-771-410-21 SWITCH, TACTILE (TUNING -) S228 1-771-410-21 SWITCH, TACTILE (FM/AM) S229...
  • Page 32 STR-DE245/DE345 Ref. No. Part No. Description ACCESSORIES & PACKING MATERIALS ******************************** 1-418-833-11 REMOTE COMMANDER (DE245) 1-501-594-11 ANTENNA (FM) 1-501-721-11 ANTENNA (LOOP) 1-793-184-21 CONNECTOR (F TYPE ADAPTOR) (DE245:E,EA,MX/DE345:US,CND,E,EA,PX,MX,AR) 4-227-866-11 MANUAL, INSTRUCTION (ENGLISH) (DE345:US,CND,E,EA,PX,AUS,SP,MY,CH) 4-227-866-21 MANUAL, INSTRUCTION (FRENCH,SPANISH) 4-227-866-31 MANUAL, INSTRUCTION (CHINESE)

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