SAFETY-RELATED COMPONENT WARNING!! : COMPONENTS IDENTIFIED BY MARK THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR...
File Name of Parts List File (EXCEL File) Note for Parts List When parts list is EXCEL file, please refer to the following explanation about file name. PL_TX-SR343(B)MJJ.xlsx Destination Model No. Color Look at the rear panel serial number 6 digit. ○...
Weight : 7.8 kg (17.2 lbs.) (North American and Taiwanese), 8.0 kg (17.6 lbs.) (Others) Dimensions (W × H × D) : 435 mm × 160 mm × 328 mm, 17-1/8" × 6-5/16" × 12-15/16" TX-SR444...
Reset How to Reset the Unit ● How to reset: ●リセット方法 : Step1 本体のCBL/SATボタンを押しながら(必ず押した状態で2.の操作を行ってください) While holding down CBL/SAT on the main unit (note that step 2 must be performed with this button pressed down) 本体のON/STANDBYボタンを押す(表示部に「Clear」が表示されてスタンバイ状態に Step2 戻ります) Press ON/STANDBY on the main unit. ("Clear" appears on the display and the unit returns ●...
Protect Mode Amp Diag Mode after Abnormal Conditions The unit goes into standby automatically when detect the abnormal condition of thermal detection, dc voltage detection or current detection. (e.g. TX-SR343 block diagram below) BAPRC-1758 BAETC-1713 THERMAL THERMAL DETECT Q6300 SPRLF Q7009 VOLH M POWER...
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Self-diagnostics Amp Diag Mode after Abnormal Conditions This function is for avoiding the rupture of electrolytic capacitors with amplifier circuit failure during power-ON. Operation of Self-diagnostic Display of during Self-diagnostics Self-diagnostic will start at the timing of next power on, after goes to the protect mode 2 Line FL tube type by Current detection or DC voltage detection.
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Repair Process and How to Confirm Amp Diag Mode after Abnormal Conditions Confirmation of the protect cause Protected by current detection While NG channel is displayed, You can confirm the protect cause by following the step below. 1. Press the Enter button 2.
[TV] + [ON/STANDBY] → [DIMMER] or [RT/PTY/TP] → [TONE +] x 4 Model Name Destination FL Display TX-SR343 S R 3 TX-SR343 S R 3 TX-SR343 S R 3 TX-SR343 S R 3 TX-SR444 S R 4 TX-SR444 S R 4 TX-SR444 S R 4 HT-R494 HT-R494 TX-SR343/444/HT-R494...
Step2 : [TONE +] Download the firmware file (package file) from the Onkyo FTP-server. However European DSP Firmware Version will appear on the main unit’s display. service partners should download the firmware file (package file) from the ExtraNet.
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How to Update (service mode) 1/2 Firmware Overwriting is also possible. MMC -> ALL: ALL firmware update (default) MMC -> DSP: DSP firmware update Connect the MMC card JIG(0J34) with MMC card that is already all firmware in it to JIG MMC ->...
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How to Update (service mode) 2/2 Firmware Wait until update is completed. When the update ends, “Completed!” is displayed. When “ Completed!” message appeared, you can power off by pressing “ ON/STANDBY” button. (If you leave it, it automatically turns standby mode. ) Press [ON/STANDBY] button, and the unit turns on.
Hookup and Setting No Sound ■ No sound from connected player □ Chose input selector which is assigned to connected input terminal ? □ Isn’t muting on ? ■ No sound from connected TV □ Chose wrong input selector ? □...
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Hookup and Setting No Picture ■ In general □ Connection cable is bent , twisted or damaged ? □ Input is switched on TV ? ■ No picture from connected player by HDMI input terminal □ Chose input selector which is connected to player ? □...
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Hookup and Setting No Power ■ In general □ Doesn't be connection cable bent, be it twisted and be it damaged? ■ There is time when indication on the front panel doesn't just light up. □ Please check the connecting cord of a DISPLAY PCB. ■...
No Sound (HDMI in) Trouble Shoot Here the trouble shoot which focuses on the hardware troubles regarding PCB assembly is explained. Of course, with actual repair there are also troubles due to damaged Power Transformer, Wiring, soldering etc. in addition to PCB assembly. Process Check Point Damaged PCB...
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No Sound (Opt in) Trouble Shoot Here the trouble shoot which focuses on the hardware troubles regarding PCB assembly is explained. Of course, with actual repair there are also troubles due to damaged Power Transformer, Wiring, soldering etc. in addition to PCB assembly. Process Check Point Damaged PCB...
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No Sound (Analog in) Trouble Shoot Here the trouble shoot which focuses on the hardware troubles regarding PCB assembly is explained. Of course, with actual repair there are also troubles due to damaged Power Transformer, Wiring, soldering etc. in addition to PCB assembly. Process Check Point Damaged PCB...
No Picture (HDMI in/ out) Trouble Shoot Here the trouble shoot which focuses on the hardware troubles regarding PCB assembly is explained. Of course, with actual repair there are also troubles due to damaged Power Transformer, Wiring, soldering etc. in addition to PCB assembly. Process Check Point Damaged PCB...
No Picture (Component in/ HDMI out) Trouble Shoot Here the trouble shoot which focuses on the hardware troubles regarding PCB assembly is explained. Of course, with actual repair there are also troubles due to damaged Power Transformer, Wiring, soldering etc. in addition to PCB assembly. Process Check Point Damaged PCB...
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No Picture (Component in/ HDMI out) Trouble Shoot Here the trouble shoot which focuses on the hardware troubles regarding PCB assembly is explained. Of course, with actual repair there are also troubles due to damaged Power Transformer, Wiring, soldering etc. in addition to PCB assembly. Process Check Point Damaged PCB...
No Power Trouble Shoot Here the trouble shoot which focuses on the hardware troubles regarding PCB assembly is explained. Of course, with actual repair there are also troubles due to damaged Power Transformer, Wiring, soldering etc. in addition to PCB assembly. Process Check Point Damaged PCB...
Input signal(HDMI/OPT IN) : Test disc 1kHz 0dB Audio format : LPCM, Dolby Digital(Otherwise, CD) Q6060 Q6050 Input signal(ANALOG IN) : 1kHz 2Vrms Master volume : 46 TX-SR444/ HT-R494 only ●Each voltage is shown as the reference value. Back Value error : Plus or minus 15% TX-SR343/444/HT-R494...
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Check Point (BAPRC-1758) Trouble Shoot P2801B Check voltage ● No.2 pin : +15V P2800B Check voltage ● No.11 pin : +5V P2800B Check signal ● No.13 pin : signal ca. 1.4V 64μS ● No.15 pin : signal ca. 1.4V 64μS ●...
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Normal (OK) or blown (No good) F6402 RL9001 Front T9002 Check damage ● Normal (OK) or blown (No good) A401 R9015 R9016 J9032 J9031 A404 R9017 C9022 C9030 C9033 P9022 P9011A A405 BAAF-1712 F6401 F6402 Front Back TX-SR444/ HT-R494 only TX-SR343/444/HT-R494...
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Check Point (BAPRC-1758) Trouble Shoot P7001 ● Check damage and connection How to check 1.Disconnect the FFC from the socket. 2.Check the contacts of the FFC. P9011B Check voltage ● No.4 pin : +14V P9011B Check voltage ● No.5 pin : +8.7V P9011B Check signal ●...
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Check Point (BAPS-1737) Trouble Shoot RL9001 Check operation of a relay by sound. No sound at all ---> No good P9002 Check voltage H - L : AC100 - 240V (Power supply voltage) P9002 P9001A A402 P9021 A403 P9002 F9001 C9001 Front RL9001...
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Check Point (BADIS-1732) Trouble Shoot P7001 ● Check damage and connection How to check 1.Disconnect the FFC from the socket. 2.Check the contacts of the FFC. A110 A107 C7515 J7009 C7513 S7622 C7514 A118 J7010 J7054 J7011 J7016 J7050 A121 D7561 A127 C7508...
Summary Disassembly This model can be disassembled in the order shown below. TOP COVER FRONT PANEL Tuner & Power Supply PROCESSOR PCB Refer to 「Front Panel Section」 Refer to 「Tuner & Power Supply Section」 Refer to 「Processor Section」 BADIS-1732 BARF-1738 BAPRC-1758 BAETC-1715 BAPS-1737...
Front Panel Section Disassembly This is TX-SR343. TX-SR444 / HT-R494 are same mostly structurally. Please refer to PANEL pages for detailed place by the terminal. BADIS-1732 BAETC-1715 BARF-1764 TX-SR343/444/HT-R494...
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Tuner & Power Supply Section Disassembly This is TX-SR343. TX-SR444 / HT-R494 are same mostly structurally. Please refer to PANEL pages for detailed place by the terminal. BARF-1738 BAPS-1737 TX-SR343/444/HT-R494...
Processor Section Disassembly This is TX-SR343. TX-SR444 / HT-R494 are same mostly structurally. Please refer to PANEL pages for detailed place by the terminal. BAPRC-1758 TX-SR343/444/HT-R494...
Video Section Disassembly This is TX-SR343. TX-SR444 / HT-R494 are same mostly structurally. Please refer to PANEL pages for detailed place by the terminal. BAVD-1735 TX-SR343/444/HT-R494...
Amplifier Section Disassembly This is TX-SR343. TX-SR444 / HT-R494 are same mostly structurally. Please refer to PANEL pages for detailed place by the terminal. BACLA-1734 BAAF-1712 TX-SR343/444/HT-R494...
Schematic Diagram Block Diagrams (Audio section) MODEL NO. TX-SR343/444,HT-R494 BLOCK DIAGRAM (PART-1) AUDIO SECTION BADIS1732 BAAF1712 AUX IN BAETC1715 (FRONT IN) TX-SR444,HT-R494 HP DET MIC AMP HEADPHONES FRONT BOARD Q4001 MIC DET POWER AMPLIFIER NJW1298 +29dB FRONT LEFT TUNER PACK...
Schematic Diagram Block Diagrams (Video section) Model No.TX-SR343/444,HT-R494 SCHEMATIC DIAGRAM (PART-2) BLOCK DIAGRAM(VIDEO) BAPRC1758 HDMI MEMORY SPI for UPDATE Q8000 HDMI TMDS TMDS REPEATER MN864788A RPWR HP DET TMDS TMDS TMDS TMDS RPWR RPWR HP DET HP DET AUDIO IN TMDS I2S from DSP TMDS...
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Schematic Diagram Bluetooth module connector section MODEL NO. TX-SR343/444,HT-R494 SCHEMATIC DIAGRAM (PART-14) Bluetooth module Connector Section BARF-1764 SIDE TP101 C794 9PIN BLUETOOTH MODULE 104K TP102 TP103 Q781 +3.3VBT HRM1034 TP104 BT_RST TP105 BT_LRCLK TP106 R795 BT_DAT GND4 TP107 BT_BCLK TP41 GND1 SPK_RP TP108...
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Overview Exploded View A401 <NOTE> No description screw is 3TTB +8B(BC). 3TTB+8B(BC) Silver model only Unit : mm 3TTB+8B(3CM)SR A403 3TTB+8B(3CM)SR Refer to “heat sink section” x 9 pcs. Refer to “rear section” 4TTC+8C(3BC)SR T901 x 4 pcs. Refer to “front section” A002 x 4 pcs.
Cependant, cet équipement doit être installé et utilisé en gardant une distance de 20 cm ou plus entre le dispositif rayonnant et le corps (à l’exception des extrémités : mains, poignets, pieds et chevilles). This is TX-SR343. TX-SR444 / HT-R494 are same mostly structurally. Please refer to PANEL pages for detailed place by the terminal.
P2800 P8002 F9001 BACLA-1734 U002B BAVD-1735 FUSE F6402 U002A BARF-1738 FUSE F6401 P101 3P+6FN(3BC) x 5 pcs. BAAF-1712 This is TX-SR343. TX-SR444 / HT-R494 are same mostly structurally. Please refer to PANEL pages for detailed place by the terminal. TX-SR343/444/HT-R444...
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Operation Check Appendix Initial Setting for Shipping (Service Information is also cleared.) About Button Action Use the following expression simplify description button operation. Step1 Set the volume level as 25. Example-1 : [TV/CD] + [/ standby] → [BD/DVD] Step2 [TONE] + [ON/STANDBY] → [Return] x 2 Means press the [/ standby] at [TV/CD] button is pressed, then both button to speak, [BD/DVD] Display "All Clear"...
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Operation Check Appendix How to enter to a test mode How to check FL Display Step1 : Set the volume level as 25. Step1 : Set VOL Level = 25 Step2 : [TV] + [ON/STANDBY] Step2 : [TV] + [ON/STANDBY] → [DIMMER] or [RT/PTY/TP] Display “TEST-_”...
Debug Mode Appendix Audio debug mode The operations of DSP and DIR etc. are able to checked by the information displayed on FL in this FL Display debug mode. This information will help to analysing digital audio no sound trouble. :...
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Debug Mode Appendix FL Display FL Display : . : : 11. source_format 14. Information of the input 15. Information of the LFE channel input 12. st_srd.fs UNLK DDR_UNLOCK SW 0ch ??? unknown channels for listening mode DDR_ANALOG SW 1ch transition 008 8kHz C_FMT_UNKNOWN...
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Debug Mode Appendix FL Display FL Display : : : : : : 18. Audio output OK/NG 20. Details of the format for the FL 21. Dialog norm 22. Return value of DIRINIT request dir decode OK Dialog norm value from 0 to 31 display (DDC_STATUS) LOCK...
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Debug Mode Appendix FL Display FL Display 26. Audio IF DA830 input 35. Information of the input MCLK of 30. DIR sequence number 33. Information of the input FS of AUD_IF_I2S_H SEQ_DIG_POWEROFF DA830 DA830 C_FS_UNKNOWN AUD_MCLK_64Fs AUD_IF_DSD SEQ_DIG_RESET C_FS_08 AUD_MCLK_128Fs AUD_IF_I2S SEQ_DIG_POWERON_WAIT AUD_IF_NET...
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Debug Mode Appendix HDMI resolution display HDMI-related operations can be checked to some extent by displaying HDMI resolution display mode. How to enter to this mode Step1 : [ENTER] Hold down for 3 seconds The display order Display of the input signal Step1 : Display of the input signal (for 5 seconds) Step2 : Display of the output signal (for 5 seconds) TX-SR343/444/HT-R494...
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Debug Mode Appendix Display of the input signal Digital Input signal Display 1 0 8 0 p / 6 0 1 6 : 9 → ・DVI 4 8 0 Resolution Frame rate Aspect ratio scaling 4 8 0 P Analog d e o 4 8 0 4 : 3 ・VGA(DVI)
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Debug Mode Appendix Display of the output signal Output resolution Output signal Display Y C b C r 4 2 0 3 6 b ・RSEN OFF R G B 4 8 b color space depth ・EDID_READ_NG D V I 2 4 b Output resolution (4k scaling) 4 K 6 0 p 4 2 0 3 0 b...
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Service Information Mode Appendix Listening Mode Code List Service Information Mode C_LM_LAST Displaying Service information C_LM_PURE This service information display system is helpful in analyze the status when the unit goes into C_LM_DIRECT C_LM_STEREO Protect mode and is powered off. Pay attention that the status will change if a button is pushed. C_LM_MONO C_LM_SURR How to enter to service information mode.
1/39 PAGE TX-SR444(B)MDC <Note> Parts marked by "NSP" are generally unavailable because <Notes> they are not in our Master Spare Parts List. (B) : Black color model <MDC> : 120V NOTE : THE COMPONENTS IDENTIFIED BY THE MARK Canadian/USA/(Mexico) model ! ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
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2/39 PAGE Q6066 or TRANSISTOR 2SA1695-O ( 1) 2202513 Q6066 or TRANSISTOR 2SA1695-P ( 1) 2202516 Q6066 or TRANSISTOR 2SA1941-R ( 1) 2203052 [CHASSIS SCREW] A002 BOTTOM LEG phi48(313) 27175472 A003 CUSHION (ZUL) phi20 x phi8 28141900 A101 REAR PANEL TXSR444MDC 27124639A [CABINET]...
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3/39 PAGE TX-SR444(B)MDC PACKING PROCEDURES PARTS LIST REF. NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) REMARKS [PACKING] A601 (AS)444 29092709A A601A (L)444 { 1} 29092710 A601B (R)444 { 1} 29092711A A602 (650 x 600 x 0.515) 29100267 A603 TAPE (SEROHAN)NITTO NO.29...
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4/39 PAGE TX-SR444(B)MDC PC BOARD PARTS LIST U001 BAAF-1712-1A : NSP CIRCUIT NO. P ART NAME DESCRIPTION Q'TY PART NO. (SN) REMARKS [SEMI CONDUCTOR] D4173 ZENER DIODE DZ2J068M0L 224760680R2 D4173 or ZENER DIODE UDZS6.8B ( 1) 224550680R2 D4174 ZENER DIODE...
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5/39 PAGE D6024 CHIP TYPE DIODE DA2J10100 223303R2 D6024 or CHIP TYPE DIODE 1SS352 ( 1) 223234R2 D6025 CHIP TYPE DIODE DA2J10100 223303R2 D6025 or CHIP TYPE DIODE 1SS352 ( 1) 223234R2 D6026 CHIP TYPE DIODE DA2J10100 223303R2 D6026 or CHIP TYPE DIODE 1SS352 ( 1)
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7/39 PAGE C1723 CHIP TYPE CERAMIC CAPACITOR CC725CH1H-102J1 342101024R1 C1724 CHIP TYPE CERAMIC CAPACITOR CC725CH1H-102J1 342101024R1 C1725 CHIP TYPE CERAMIC CAPACITOR CC725CH1H-102J1 342101024R1 C1726 CHIP TYPE CERAMIC CAPACITOR CC725CH1H-102J1 342101024R1 C1727 CHIP TYPE CERAMIC CAPACITOR CC725CH1H-102J1 342101024R1 C4003 CHIP TYPE CERAMIC CAPACITOR CC725CH1H-221J1 342102214R1 C4004...
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8/39 PAGE C4169 CHIP TYPE CERAMIC CAPACITOR CK725B1H-104K1 332101045R1 C4170 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-104J 374721044T C4170 or FILM C C281H104J20A21A ( 1) 376821044T C4171 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-104J 374721044T C4171 or FILM C C281H104J20A21A ( 1) 376821044T C4172 UTSP TYPE ELECTROLYTIC CAPACITOR...
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9/39 PAGE C6053 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-224J 374722244T C6054 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-224J 374722244T C6055 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-224J 374722244T C6056 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-224J 374722244T C6250 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-473J 374724734T C6251...
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10/39 PAGE R1725 CHIP TYPE CARBON RESISTOR RN72K1J-471JE 435034714R1 R1726 CHIP TYPE CARBON RESISTOR RN72K1J-471JE 435034714R1 R1727 CHIP TYPE CARBON RESISTOR RN72K1J-471JE 435034714R1 R1730 CHIP TYPE CARBON RESISTOR RN72K1J-471JE 435034714R1 R1731 CHIP TYPE CARBON RESISTOR RN72K1J-471JE 435034714R1 R1732 CHIP TYPE CARBON RESISTOR RN72K1J-471JE 435034714R1 R1733...
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11/39 PAGE R4059 CHIP TYPE CARBON RESISTOR RN72K1J-104JE 435031044R1 R4060 CHIP TYPE CARBON RESISTOR RN72K1J-104JE 435031044R1 R4078 CHIP TYPE CARBON RESISTOR RN72K1J-473JE 435034734R1 R4079 CHIP TYPE CARBON RESISTOR RN72K1J-473JE 435034734R1 R4082 CHIP TYPE CARBON RESISTOR RN72K1J-104JE 435031044R1 R4087 CHIP TYPE CARBON RESISTOR RN72K1J-222JE 435032224R1 R4088...
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12/39 PAGE R4403 CHIP TYPE CARBON RESISTOR RN72K1J-224JE 435032244R1 R5003 CHIP TYPE CARBON RESISTOR RN72K1J-000JE 435030004R1 R5004 CHIP TYPE CARBON RESISTOR RN72K1J-000JE 435030004R1 R5005 CHIP TYPE CARBON RESISTOR RN72K1J-000JE 435030004R1 R5006 CHIP TYPE CARBON RESISTOR RN72K1J-000JE 435030004R1 R5013 CHIP TYPE CARBON RESISTOR RN72K1J-563JE 435035634R1 R5014...
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13/39 PAGE R5185 NON-FLAMMABLE CARBON FILM RESISTOR R25J-10 415471004T R5186 NON-FLAMMABLE CARBON FILM RESISTOR R25J-10 415471004T R5193 NON-FLAMMABLE CARBON FILM RESISTOR R25J-10 415471004T R5194 NON-FLAMMABLE CARBON FILM RESISTOR R25J-10 415471004T R5195 NON-FLAMMABLE CARBON FILM RESISTOR R25J-10 415471004T R5196 NON-FLAMMABLE CARBON FILM RESISTOR R25J-10 415471004T R5303...
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14/39 PAGE R6111 METAL OXIDE FILM RESISTOR RS2WBJ-0.22 442722294T R6112 METAL OXIDE FILM RESISTOR RS2WBJ-0.22 442722294T R6113 METAL OXIDE FILM RESISTOR RS2WBJ-0.22 442722294T R6114 METAL OXIDE FILM RESISTOR RS2WBJ-0.22 442722294T R6115 METAL OXIDE FILM RESISTOR RS2WBJ-0.22 442722294T R6116 METAL OXIDE FILM RESISTOR RS2WBJ-0.22 442722294T R6120...
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15/39 PAGE R6225 CHIP TYPE CARBON RESISTOR RN72K1J-220FE 435032202R1 R6226 CHIP TYPE CARBON RESISTOR RN72K1J-220FE 435032202R1 R6230 CHIP TYPE CARBON RESISTOR RN72K1J-000JE 435030004R1 R6231 CHIP TYPE CARBON RESISTOR RN72K1J-000JE 435030004R1 R6232 CHIP TYPE CARBON RESISTOR RN72K1J-000JE 435030004R1 R6233 CHIP TYPE CARBON RESISTOR RN72K1J-000JE 435030004R1 R6234...