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Sony STR-DE945 Support Question

Sony STR-DE945 Support Question

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Question posted by fblount on May 4th, 2011

Sony Str-de945 No Power

I n troubleshooting my no power issue, I have looked at output circuitry, and the AC and DC power.  I have yet to find the problem.  I checked all output transistors and components in their circuits.  How can I check the power  transformer? Everything is dead.  All fuses look ok.  The relays do not click when hitting the power switch.  What cna I do next?

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Related Sony STR-DE945 Manual Pages

Dimensions Diagram - Page 1

SONY WILL NOT BE RESPONSIBLE FOR INACCURACIES IN THE DESIGN OR MANUFACTURE OF ENCLOSURES . STR-DE945 RM-DX350 REMOTE CONTROL DESCRIPTION: Dolby Digital DIMENSIONS Receiver (WHD): 17" x 6 1/4" x 14 7/8" WEIGHT: Approx 27 lbs POWER REQUIREMENTS:120V POWER...AUDIO OUT SUB WOOFER 48 REAR CENTER 8 -16 ohms IMP Selector AC OUTLET MONITOR PH CD MD/DAT TAPE TV/SAT DVD VIDEO 2 VIDEO 1 2nd AUDIO...
Operating Instructions - Page 1

4-229-126-12(1) FM Stereo FM-AM Receiver Operating Instructions STR-DE945 STR-DE845 © 2000 Sony Corporation
Operating Instructions - Page 2

... nearest Sony dealer. Consult the dealer or an experienced radio/TV technician for a long time, be changed only at the rear of the unit. To disconnect the AC power cord, grasp the plug itself has been turned off and on the rear of the receiver. • The unit is wider than the other components, be...
Operating Instructions - Page 3

... those on the receiver. are trademarks of Digital Theater Systems, Inc. © 1996 Digital Theater Systems, Inc. No. 5,451,942 and other worldwide patents issued and pending. Check your remote, refer to the area code, are for models STR-DE945 and STR-DE845. "DTS" and "DTS Digital Surround" are trademarks of Dolby Laboratories. SPEAKERS B A R L AUDIO OUT ++ + L R L FRONT...
Operating Instructions - Page 4

... the sections for about 3 months. Unpacking Check that you actually connect them to replace batteries Under normal conditions, the batteries should last for the components you have before making any connections. • Do not connect the AC power cord until all batteries with the + and - z When to the receiver. Do not use a new battery with...
Operating Instructions - Page 6

...audio component hookups If your turntable has a ground wire, connect it to the appropriate jacks on the receiver. 6 White (L) White (L) Red (R) Red (R) ANTENNA AM y COAXIAL FM... - - - - Hooking Up the Components Audio Component Hookups STR-DE945 MD/DAT deck INPUT OUTPUT LINE LINE L R ç ç Turntable OUT IN Required cords Audio cords (not supplied) When connecting a ...
Operating Instructions - Page 7

... 2 VIDEO 1 OUTPUT LINE L R CD player Jacks for connecting audio components Connect a Turntable CD player MD deck or tape deck To the PHONO jacks CD jacks MD/TAPE jacks Note on audio component hookups If your turntable has a ground wire, connect it to the appropriate jacks on the receiver. 7 White (L) White (L) Red (R) Red (R) ANTENNA AM y COAXIAL FM 75...
Operating Instructions - Page 8

... on the front panel (STR-DE945 only) 1) For STR-DE945, you are on the receiver and apply sound effects to the audio from the video signals and will not be output through the video jacks. Ç Ç Hooking Up the Components Video Component Hookups TV or satellite tuner OUTPUT AUDIO OUT R L VIDEO OUT DVD or LD player OUTPUT AUDIO OUT R L VIDEO OUT Required...
Operating Instructions - Page 12

... VIDEO 3 INPUT VIDEO L AUDIO R AUDIO OUT AUDIO IN Sub room Stereo amplifier R SPEAKERS L Speaker (L) Speaker (R) Note This function is not available when 5.1CH INPUT is shipped. ** Models of a sub room hookup using the 2ND AUDIO OUT jacks (STR-DE945 only) You can use the 2ND AUDIO OUT jacks to output audio signals to the appropriate jacks on the components. A B C LEVEL TAPE...
Operating Instructions - Page 18

...how to your receiver for your system. Before turning on the power, clear the receiver's memory. VIDEO 1 VIDEO 2 VIDEO 3 DVD/LD TV/SAT CINEMA STUDIO EX. TUNING + MEMORY FM/AM FM MODE 2ND AUDIO + SET UP ... you turn on or off automatically via the CONTROL A1 control system (page 50). • STR-DE945 only: - 2 way remote control system operation (page 50). - Note Running the demonstration will...
Operating Instructions - Page 27

...output sound to drive. Each press switches the input mode of front speakers. TUNING + MEMORY FM/AM FM MODE 2ND AUDIO + SET UP NAME ENTER 0 BASS MUTING EQUALIZER BOOST VIDEO 3 INPUT 10 VIDEO L AUDIO...repeatedly to select "5.1CH V:" (see page 50 for your digital components (DVD/LD, TV/SAT, and MD/DAT (STR-DE945) or MD/TAPE (STR-DE845)). LEVEL A B C TAPE MD/DAT CD TUNER PHONO ...
Operating Instructions - Page 29

... from components connected to memorize a preset station. When you adjust the equalizer using the EQ parameters (page 40), the settings are stored automatically and can be output from page 43. Each press selects another room (page 12). For details, see "Receiving Broadcasts" starting from the 2ND AUDIO OUT jacks. PRESET TUNING +/- FM MODE button If "STEREO...
Operating Instructions - Page 48

... output from the components connected to 8 characters for . The last station you are not familiar with how to tune in . Recording Your receiver makes it easy to record to and from the TAPE OUT or MD/DAT OUT jacks (STR-DE945) or the MD/ TAPE OUT jacks (STR-DE845). 48 Notes • You cannot record a digital audio...
Operating Instructions - Page 50

Setting up the 2 way remote (STR-DE945 only) This receiver is shipped from the factory with your other component's 2 way remote control system. To use with the TA-E9000ES Perform the following steps to turn Sony components connected via Control A1 cords (see page 13) on when using several 2 way remote control system components together, be used with...
Operating Instructions - Page 51

...System is upgraded to simplify the operation of audio systems composed of separate Sony components. For detailed information, refer to select "...components will be sure to also refer to select "DIMM. Basically, the majority of the functions available with CONTROL A1 jacks, the number of functions that require CONTROL A1 connections. Selecting the color of the on-screen display (STR-DE945...
Operating Instructions - Page 53

... Information Troubleshooting If you experience any problem persist, consult your TV away from a digital source. , Make sure signals with alcohol. Also, see page 27). , Press MUTING on the remote if the MUTING indicator is heard. , Check that the speakers and components are connected securely. , Check that the connecting cords are correct. Intermittent sound from the audio components...
Operating Instructions - Page 54

... stations cannot be tuned in. , Check that the frequency appears in AM stations with direct tuning) (see page 27) before operating the receiver or other than TV before recording with the component connected to the DIGITAL MD/DAT OUT terminals (STR-DE945) or the DIGITAL MD/TAPE OUT terminals (STR-DE845). Nothing appears on the display...
Operating Instructions - Page 55

... AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 8 ohm loads, both channels driven, from 250 milliwatts to rated output (USA model only). Amplifier section POWER OUTPUT Models of area code U, CA Rated Power Output at Stereo Mode (8 ohms 20 Hz - 20 kHz, THD 0.09 %) STR-DE945: 110 W + 110 W STR-DE845: 100 W + 100 W Reference Power Output (8 ohms 1 kHz, THD 0.7 %) STR...
Operating Instructions - Page 57

... code E 120/220/240 V AC, 50/60 Hz Power consumption Models of area code U STR-DE945: 290 W STR-DE845: 280 W Models of area code CA STR-DE945: 345 VA STR-DE845: 335 VA Models of area code CN, SP STR-DE845: 220 W Models of area code AU STR-DE845: 230 W Models of area code E STR-DE845: 320 W AC outlets Models of area...
Operating Instructions - Page 61

... H Hookups 5.1 CH input 11 AC power cord 14 antennas 5 audio components 6, 7 digital components 9, 10 CONTROL A1 II 12 S-LINK CONTROL S 13 speaker system 16 video components 8 I, J, K Indexing. See Naming L, M Labeling. See Naming N Naming 48 O OSD 51 P, Q Parameter 41, 42, 59, 60 Preset stations how to preset 45 how to tune 46 R Receiving broadcasts automatically 45 directly 44...

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