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STR-DE245/DE345

AEP Model

UK Model

E Model

Australian Model

STR-DE245/DE345

US Model

Canadian Model

Chinese Model

PX Model

STR-DE345

SERVICE MANUAL

FM STEREO FM-AM RECEIVER

SPECIFICATIONS

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.

Photo: STR-DE345

— Continued on next page —

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        dB

Inputs

Sensitivity

Impedance

S/N

CD,
5.1CH/
DVD,
MD/TAPE,

150 mV

50

85 dB

TV/SAT,

kilohms

VIDEO

Outputs

MD/TAPE REC OUT:
   Voltage: 150 mV,
   Impedance: 10 kilohms
VIDEO AUDIO OUT:
   Voltage: 150 mV,
   Impedance: 10 kilohms
SUB WOOFER:
   Voltage: 2 V
   Impedance: 1 kilohms
PHONES: Accepts low
   and high impedance
   headphones

Muting

Full mute

BASS BOOST

+6 dB at 70 Hz

TONE

±6 dB at 100 Hz and
10 kHz

Tuner section

FM Stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range

87.5 – 108.0 MHz

Antenna terminals

75 

, unbalanced

Intermediate frequency

10.7 MHz

Sensitivity

Mono: 18.3 dBf, 4.5 µV
Stereo: 38.3 dBf, 45 µV

Usable sensitivity

11.2 dBf, 2 µV (IHF)

S/N

Mono: 76 dB
Stereo: 70 dB

Harmonic

Mono: 0.3 %

distortion at 1 kHz

Stereo: 0.5 %

Separation

45 dB at 1 kHz

Frequency response

30 Hz –15 kHz       dB

Selectivity

60 dB at 400 kHz

+0.5
–2.0

+0.5
–2.0

AM tuner section

Tuning range

10 kHz interval*
   530 – 1,710 kHz
9 kHz interval
   531 – 1,710 kHz

Antenna

Loop antenna

Intermediate frequency

450 kHz

Usable sensitivity

50 dB/m (at 1,000 kHz
or 999 kHz)

S/N

54 dB (at 50 mV/m)

Harmonic distortion

0.5 % (50 mV/m, 400
Hz)

Selectivity

At 10 kHz: 40 dB
At 9 kHz: 35 dB

* You can change the AM tuning interval between 9

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  button and

press the 

?/1

 (power) button .

“9 k STEP” appears.

To change to 10 k Step, repeat step 1 and 2
until “10 k STEP” appears. Note that all preset
stations, index names and sound field are
cleared after you make the procedure above.

Ver 1.0  2000. 02

Summary of Contents for STR-DE245

Page 1: ...HONES Accepts low and high impedance headphones Muting Full mute BASS BOOST 6 dB at 70 Hz TONE 6 dB at 100 Hz and 10 kHz Tuner section FM Stereo FM AM superheterodyne tuner FM tuner section Tuning range 87 5 108 0 MHz Antenna terminals 75 Ω unbalanced Intermediate frequency 10 7 MHz Sensitivity Mono 18 3 dBf 4 5 µV Stereo 38 3 dBf 45 µV Usable sensitivity 11 2 dBf 2 µV IHF S N Mono 76 dB Stereo 70...

Page 2: ...ctions of the remote RM PP404 Design and specifications are subject to change without notice MODEL IDENTIFICATION BACK PANEL Parts No MODEL PARTS No DE345 US model 4 226 462 0s DE345 Canadian model 4 226 462 1s DE345 Australian model 4 226 462 2s DE345 Singapore Malaysia model 4 226 462 3s DE345 Chinese model 4 226 462 4s DE345 E Saudi Arabia PX model 4 226 462 5s DE345 AEP model 4 226 462 6s DE34...

Page 3: ...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 To Exposed Metal Parts on Set 0 15 µF 1 5 kΩ AC Voltmeter 0 75V Earth Ground Fig A Using an AC voltmeter to check AC leakage ATTENTION AU COMPOSANT...

Page 4: ...APE button CD button TUNER button 5 SOUND FIELD ON OFF MODE buttons BASS buttons TREBLE buttons 6 MENU buttons 7 MASTER VOLUME control 8 MUTING button BASS BOOST botton 9 PRESET PTY SELECT buttons TUNING buttons FM AM button FM MODE button SHIFT button MEMORY button 0 SET UP button NAME button ENTER button qa SOUND CONTROL LEVEL SUR buttons qs DIMMER button DISPLAY button ...

Page 5: ...5 Rear Panel This section is extracted from instruction manual ...

Page 6: ...eset to the default values ALL CLEAR MODE All preset contents are cleared when this mode is activated Use this mode before returning the product to clients upon completion of repair Procedure While depressing the TUNER and the MD TAPE buttons simultaneously press the power 1 button to turn on the main power The message INITIAL appears and initialization is performed SURROUND CLEAR MODE The preset ...

Page 7: ...0 D735 RELAY DRIVE Q550 RY510 D734 IC401 3 1 RELAY DRIVE Q470 RY470 D736 L R SR SL C R CH R CH R CH SPEAKERS FRONT PHONES SPEAKERS REAR SPEAKERS CENTER TM601 TM602 SUB WOOFER J403 5 1CH VIDEO IN TV LD 5 1 IN J281 IN OUT OUT J282 VIDEO1 MONITOR DE345 MODEL V3 12 V1 1 OUT 5 V2 3 M OUT 10 13 S1 2 S2 4 S2 11 M VIDEO SELECT IC281 21 AUTO STOP S1 2 S2 3 IC MUTE 4 22 T MUTE 23 STEREO IN 28 SIGNAL 24 PLL ...

Page 8: ... I O I I I I I I I I I I I O I O I I Description Power supply to µ com Control Video IC switching Control Video IC switching Control mute of Video IC Volume IC data Volume IC clock Volume IC enable Read µ com reset signal For µ com clock Programming pow supply No use Read decoded RDS data Power supply to µ com Chip enable for ICs Output clock signal Output data signal Chip enable for ICs Tuner has...

Page 9: ...te Les composants identifiés par une marque sont critiques pour la sécurité Ne les remplacer que par une pièce portant le numéro spécifié Waveform MAIN SECTION PANEL SECTION For printed wiring boards Note X parts extracted from the component side a Through hole f internal component b Pattern from the side which enables seeing C B These are omitted E Q B These are omitted C E 3 4 CIRCUIT BOARDS LOC...

Page 10: ...509 D 3 Q550 B 7 Q601 D 8 Q602 E 8 Q603 E 8 Q604 E 9 Q605 D 9 Q606 D 8 Q610 B 7 Q651 D 5 Q652 E 6 Q653 E 5 Q654 E 6 Q655 D 5 Q656 D 6 Q657 D 6 Q658 D 6 Q659 D 6 Q701 D 4 Q702 E 4 Q703 E 4 Q704 E 5 Q705 D 5 Q706 D 4 Q707 D 5 Q708 D 5 Q709 D 5 Q715 C 8 Q722 B 9 Q723 C 8 Q725 B 8 Q730 B 8 Q751 D 7 Q752 E 7 Q753 E 7 Q754 E 7 Q755 D 7 Q756 D 7 Q757 D 7 Q758 D 7 Q759 D 8 Q791 D 9 Q801 D 9 IC3505 G 11 IC...

Page 11: ...or IC Block Diagrams CIS EE CIS EE E EA MX SP MY EA PX AUS MX SP MY AR CH CIS EE DE345 AEP CIS EE EA MX SP MY DE245 AEP UK CIS EE DE345 AEP CIS EE DE245 AEP UK CIS EE DE345 AEP CIS EE C706 330p DE245 AEP UK CIS EE DE345 AEP CIS EE C606 330p 4p DE245 AEP UK CIS EE DE345 AEP CIS EE ...

Page 12: ...2 3 CIS EE US CND E EA AUS MX SP MY AR CH AEP UK CIS EE AUS E EA MX SP MY AEP UK CIS EE AEP CIS EE AEP UK CIS EE AEP CIS EE 2 2 2 2 39k 220 220 C714 0 01µ 220 C764 330µ 82k CND E EA PX AEP CIS EE 2 R529 R674 R740 R777 22 DE245 24 DE345 CIS EE 30 EXCEPT CN792 ...

Page 13: ... Refer to page 9 for Waveforms Page 17 Page 17 Page 18 Page 15 Page 15 1 DE245 AEP UK CIS EE DE345 AEP CIS EE DE245 AEP UK CIS EE DE345 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 1 1 DE245 AEP UK CIS EE DE345 AEP CIS EE ...

Page 14: ...K CIS EE DE345 AEP CIS EE S236 S237 PTY EON 3 9 PRINTED WIRING BOARD PANEL SECTION Refer to page 9 for Circuit Boards Location Ref No Location D201 C 9 D202 C 9 D203 B 7 D204 B 4 D210 C 3 D211 C 3 D212 B 5 D213 B 4 D214 B 1 D215 B 2 IC103 B 6 IC203 B 3 Q201 B 4 Q202 B 4 Q210 C 3 Q211 C 3 Q212 B 4 Q213 B 4 Q214 B 1 Q215 B 1 Q216 B 1 Semiconductor Location ...

Page 15: ...E345 AEP CIS EE DE245 AEP UK CIS EE DE345 DE245 AEP UK CIS EE DE345 AEP CIS EE SP MY CH AEP CIS EE E EA MX SP MY AEP UK CIS EE US CND E EA PX MX AR AUS E EA PX MX SP MR AR CH SP MY AUS E EA MX AEP UK CIS EE AEP CIS EE US CND 270 R262 3 3k R263 4 7k S236 S237 EON PTY DE245 AEP UK CIS EE DE345 AEP CIS EE DE245 AEP UK MX CIS EE DE345 AEP CIS EE ...

Page 16: ... 11 PRINTED WIRING BOARD POWER SECTION Refer to page 9 for Circuit Boards Location 1 2 A B C D E F G H 3 4 5 6 7 8 9 Page 14 E Page 10 Page 10 DE245 E EA DE345 E EA PX DE245 E EA DE345 E EA PX EXCEPT DE245 E EA DE345 E EA PX ...

Page 17: ... DE345 17 17 3 12 SCHEMATIC DIAGRAM POWER SECTION Refer to page 8 for IC Block Diagrams Page 13 Page 13 Page 15 1 F901 2A E EA 6 3A US CND 1 25A EXCEPT 1 EXCEPT DE245 E EA DE345 E EA PX DE245 E EA DE345 E EA PX ...

Page 18: ...DE245 DE345 18 18 3 13 PRINTED WIRING BOARD VIDEO SECTION Refer to page 9 for Circuit Boards Location 3 14 SCHEMATIC DIAGRAM VIDEO SECTION Page 13 1 2 A B C 3 4 Page 10 Refer to page 8 for IC Block Diagrams ...

Page 19: ...D 2 X 4952 630 1 FRONT PANEL ASSY BLACK DE245 AEP UK CIS EE 2 X 4952 915 1 FRONT PANEL ASSY SILVER DE245 AEP UK CIS EE 2 X 4952 631 1 FRONT PANEL ASSY DE345 E EA PX AUS MX SP MY AR 2 X 4952 632 1 FRONT PANEL ASSY DE345 CH 2 X 4952 633 1 FRONT PANEL ASSY DE345 AEP CIS EE 2 X 4952 634 1 FRONT PANEL ASSY DE245 AUS SP MY 2 X 4952 932 1 FRONT PANEL ASSY DE245 E EA MX 3 1 676 798 11 ENCODER BOARD 4 4 21...

Page 20: ...1 769 850 11 WIRE FLAT TYPE 5 CORE DE345 60 3 905 609 01 SCREW TRANSISTOR 61 1 693 407 41 TUNER 62 4 226 462 01 BACK PANEL E3 DE345 US 62 4 226 462 11 BACK PANEL E3 DE345 CND 62 4 226 462 21 BACK PANEL E3 DE345 AUS 62 4 226 462 31 BACK PANEL E3 DE345 SP MY 62 4 226 462 41 BACK PANEL E3 DE345 CH 62 4 226 462 51 BACK PANEL E3 DE345 E EA PX 62 4 226 462 61 BACK PANEL E3 DE345 AEP 62 4 226 462 71 BACK...

Page 21: ...409 A DISPLAY BOARD COMPLETE DE245 AEP UK CIS EE A 4428 413 A DISPLAY BOARD COMPLETE DE345 AEP CIS EE A 4473 331 A DISPLAY BOARD COMPLETE DE345 MX A 4473 333 A DISPLAY BOARD COMPLETE DE345 AR A 4473 336 A DISPLAY BOARD COMPLETE DE245 MX 4 921 941 01 CUSHION FL 4 943 107 11 HOLDER FL TUBE CAPACITOR C201 1 104 905 11 CAPACITOR 0 22F 5 5V C202 1 164 159 21 CERAMIC 0 1uF 50V C203 1 126 096 11 ELECT 10...

Page 22: ...11 11 CARBON 330 5 1 4W R241 1 249 413 11 CARBON 470 5 1 4W F R242 1 249 415 11 CARBON 680 5 1 4W F R243 1 249 417 11 CARBON 1K 5 1 4W F R244 1 249 419 11 CARBON 1 5K 5 1 4W F R245 1 249 421 11 CARBON 2 2K 5 1 4W F R246 1 247 843 11 CARBON 3 3K 5 1 4W R247 1 249 425 11 CARBON 4 7K 5 1 4W F R248 1 249 411 11 CARBON 330 5 1 4W R249 1 249 413 11 CARBON 470 5 1 4W F R250 1 249 415 11 CARBON 680 5 1 4W...

Page 23: ...45 AEP UK CIS EE DE345 AEP CIS EE C10 1 164 159 21 CERAMIC 0 1uF 50V DE245 AEP UK CIS EE DE345 AEP CIS EE C301 1 136 165 00 MYLAR 0 1uF 5 00 50V C302 1 126 959 11 ELECT 0 47uF 20 00 50V C303 1 126 794 11 ELECT 4 7uF 20 00 50V C304 1 126 959 11 ELECT 0 47uF 20 00 50V C305 1 126 794 11 ELECT 4 7uF 20 00 50V C306 1 136 167 00 MYLAR 0 15uF 5 00 50V C307 1 126 962 11 ELECT 3 3uF 20 00 50V C308 1 136 16...

Page 24: ...V C452 1 126 964 11 ELECT 10uF 20 00 50V C453 1 126 964 11 ELECT 10uF 20 00 50V C454 1 126 964 11 ELECT 10uF 20 00 50V C455 1 126 964 11 ELECT 10uF 20 00 50V C461 1 126 794 11 ELECT 4 7uF 20 00 50V C462 1 130 481 00 MYLAR 0 0068uF 5 50V C463 1 137 375 11 MYLAR 0 068uF 5 00 50V C464 1 130 481 00 MYLAR 0 0068uF 5 50V C465 1 126 964 11 ELECT 10uF 20 00 50V C466 1 126 794 11 ELECT 4 7uF 20 00 50V C467...

Page 25: ...IS EE CC04 1 128 809 11 CERAMIC 100PF 5 50V DE245 AEP UK CIS EE DE345 AEP CIS EE CC05 1 128 809 11 CERAMIC 100PF 5 50V DE245 AEP UK CIS EE DE345 AEP CIS EE CC06 1 128 809 11 CERAMIC 100PF 5 50V DE245 AEP UK CIS EE DE345 AEP CIS EE CC07 1 128 809 11 CERAMIC 100PF 5 50V DE245 AEP UK CIS EE DE345 AEP CIS EE CC12 1 164 096 11 CERAMIC 0 01uF 50V DE245 AEP UK CIS EE DE345 AEP CIS EE CC14 1 164 096 11 CE...

Page 26: ...76 AC Q366 8 729 823 22 TRANSISTOR 2SC3576 AC Q470 8 729 119 78 TRANSISTOR 2SC2785TP HFE Q501 8 729 119 76 TRANSISTOR 2SA1115TP EF Q502 8 729 141 30 TRANSISTOR 2SC3623ATP LK Q503 8 749 010 25 IC MN2488 OPY M Q504 8 749 010 26 IC MP1620 OPY M Q505 8 729 140 82 TRANSISTOR 2SA988TP PAFAEA Q506 8 729 140 82 TRANSISTOR 2SA988TP PAFAEA Q507 8 729 900 63 TRANSISTOR BN1F4M TP Q509 8 729 281 53 TRANSISTOR ...

Page 27: ...249 417 11 CARBON 1K 5 1 4W F R455 1 249 417 11 CARBON 1K 5 1 4W F R456 1 249 417 11 CARBON 1K 5 1 4W F R457 1 249 417 11 CARBON 1K 5 1 4W F R458 1 249 429 11 CARBON 10K 5 1 4W R459 1 249 417 11 CARBON 1K 5 1 4W F R460 1 249 417 11 CARBON 1K 5 1 4W F R461 1 249 417 11 CARBON 1K 5 1 4W F R462 1 249 417 11 CARBON 1K 5 1 4W F R463 1 249 437 11 CARBON 47K 5 1 4W R464 1 249 437 11 CARBON 47K 5 1 4W R46...

Page 28: ...RBON 22K 5 1 4W R678 1 247 863 91 CARBON 22K 5 1 4W R683 1 249 437 11 CARBON 47K 5 1 4W R684 1 249 431 11 CARBON 15K 5 1 4W R701 1 249 417 11 CARBON 1K 5 1 4W F R702 1 249 439 11 CARBON 68K 5 1 4W R703 1 249 414 11 CARBON 560 5 1 4W F DE345 AEP CIS EE R703 1 249 417 11 CARBON 1K 5 1 4W F DE345 US CND E EA PX AUS MX SP MY AR CH R703 1 249 421 11 CARBON 2 2K 5 1 4W F DE245 AEP UK CIS EE R703 1 249 4...

Page 29: ...A MX SP MY R793 1 249 425 11 CARBON 4 7K 5 1 4W F 0R795 1 249 401 11 CARBON 47 5 1 4W F 0R803 1 249 386 11 CARBON 2 7 5 1 6W F R804 1 249 426 11 CARBON 5 6K 5 1 4W RR02 1 249 437 11 CARBON 47K 5 1 4W RR04 1 249 437 11 CARBON 47K 5 1 4W RR05 1 249 437 11 CARBON 47K 5 1 4W RR07 1 249 437 11 CARBON 47K 5 1 4W 0RR11 1 249 393 11 CARBON 10 5 1 4W F DE245 AEP UK CIS EE DE345 AEP CIS EE 0RR12 1 249 393 1...

Page 30: ... FUSE 0F901 1 532 285 00 FUSE 1 25A AEP UK AUS CIS EE SP MY CH 0F901 1 532 388 51 FUSE 2A E EA 0F901 1 532 748 11 FUSE 6 3A US CND EARTH G901 1 537 738 21 TERMINAL EARTH IC IC950 8 759 333 83 IC NJM2103D TRANSISTOR Q901 8 729 119 78 TRANSISTOR 2SC2785TP HFE Q951 8 729 045 21 TRANSISTOR 2SD1513TP LK RESISTOR 0R901 1 202 725 00 SOLID 3 3M 10 1 2W R902 1 249 437 11 CARBON 47K 5 1 4W R903 1 249 425 11...

Page 31: ...JACK PIN 3P VIDEO RESISTOR R291 1 247 804 11 CARBON 75 5 1 4W R292 1 247 804 11 CARBON 75 5 1 4W R293 1 247 804 11 CARBON 75 5 1 4W R294 1 247 804 11 CARBON 75 5 1 4W R295 1 247 804 11 CARBON 75 5 1 4W 0R296 1 249 402 11 CARBON 56 5 1 4W F 0R297 1 249 402 11 CARBON 56 5 1 4W F 1 676 805 11 VOL SEL BOARD DE245 E EA DE345 E EA PX 1 533 293 31 FUSE HOLDER CONNECTOR CNP908 1 564 687 11 PIN CONNECTOR 3...

Page 32: ...STRUCTION ENGLISH TURKISH DE345 CIS EE 4 227 986 11 INSTRUCTION MANUAL ENGLISH DE345 US 4 227 986 21 INSTRUCTION MANUAL ENGLISH FRENCH SPANISH CHINESE DE245 AUS E EA MX SP MY DE345 CND E EA MX PX AUS SP MY AR 4 227 986 31 INSTRUCTION MANUAL CHINESE DE345 CH 4 227 986 41 INSTRUCTION MANUAL ENGLISH FRENCH DUTCH SWEDISH DE245 AEP UK DE345 AEP 4 227 986 51 INSTRUCTION MANUAL GERMAN SPANISH ITALIAN POR...

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