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SAFETY-RELATED COMPONENT WARNING!! : COMPONENTS IDENTIFIED BY MARK HT-S5805 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 (SKC-594)
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. ○...
Panel Front Panel / Rear Panel / Remote Control Unit Remote Control Unit Front Panel RC-897M Rear Panel Accessory Indoor FM antenna --- (1) AM loop antenna --- (1) Remote controller (RC-897M) --- (1) Batteries (AA/R6) --- (2) Speaker setup microphone --- (1) The number in parenthesis indicates the quantity.
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...
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.
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.
How to check model and destination Model and Destination [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...
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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.
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(Part No: 0J34) with MMC card that is already all firmware MMC -> OSD: OSD firmware update in it to JIG port on the unit.
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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...
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...
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...
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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...
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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...
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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...
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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...
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Check Point (BAPRC-1758) Trouble Shoot P2801B Check voltage ● No.2 pin : +15V P2800B Check voltage ● No.7 pin : +3.3V P2800B Check signal ● No.1 pin : 3.3V Input terminal : HDMI IN or OPT IN Input signal : Test disc 1kHz 0dB Audio format : LPCM, Dolby Digital(Otherwise, CD) P8002A Check voltage...
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Check Point (BAAF-1712) Trouble Shoot R6690 Check voltage ● : +21.5V J4036,J4000 Check voltage ● J4000 : +15V ● J4036 : -15V J4051 Check signal ● ca. 100mV Input terminal : HDMI IN or OPT IN or ANALOG IN R6690 Input signal(HDMI/OPT IN) : Test disc 1kHz 0dB Audio format : LPCM, Dolby Digital(Otherwise, CD) J4051...
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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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Check Point (BAPS-1737/ BAAF-1712) Trouble Shoot BAPS-1737 F9001 Check damage ● Normal (OK) or blown (No good) P9001A A402 P9021 A403 F9001 F6401 P9002 F9001 Check damage C9001 ● Normal (OK) or blown (No good) F6402 RL9001 Front T9002 Check damage ●...
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Check Point (BAAF-1712 / BACLA-1734) Trouble Shoot ANY PARTS Check damage BACLA-1734 Normal(OK) or Damage (No good) CAM50 CAM53 CAM52 Check the damage in the red framework part as shown with visual J5152 J5142 J5132 J5122 J5112 J5102 J5151 J5141 J5131 J5121 J5111...
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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 +29dB FRONT RIGHT FL(DAC)
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 Power supply section (Pri.) MODEL NO. TX-SR343/444 , HT-R494 SCHEMATIC DIAGRAM (PART-6) PS SECTION THE COMPONENTS IDENTIFIED MARK ARE CRITICAL FOR SAFETY, REPLACE ONLY WITH PART NUMBER SPECFIED. CAUTION VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL) FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, ELECTRLYTIC CAPACITORS ( ) ARE IN uF/WV.
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.
Front section Exploded View 2.6TTB+8B(3BC) *WiFi & Bluetooth Module has already been certificated by FCC and IC. Information to the user. Indicate "Contains FCC ID: VIYHRM1034", "Contains IC: 7305A- HRM1034" and following information to the host device installed. x 19 pcs. This device complies with part 15 of the FCC Rules.
Rear section Exploded View P9001 BAPRC-1758 MDF only 3TTF+10B(3BC) P9000 A101 x 2 pcs. FUSE LABEL P8001 BAPS-1737 F9001E FUSE 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.
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...
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 HT-R494_C(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 HTR494MDC 27124643A [CABINET]...
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3/39 PAGE HT-R494_C(B)MDC PACKING PROCEDURES PARTS LIST REF. NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) REMARKS [PACKING] A601 (AS)HTS5800 29092706A A601A (L)HTS5800 { 1} 29092707A A601B (R)HTS5800 { 1} 29092708A A602 (650 x 600 x 0.515) 29100267 A603 TAPE (SEROHAN)NITTO NO.29 29110149 A703A...
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7/39 PAGE 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 CHIP TYPE CERAMIC CAPACITOR CC725CH1H-221J1 342102214R1 C4005 CHIP TYPE CERAMIC CAPACITOR CC725CH1H-102J1 342101024R1 C4006 CHIP TYPE CERAMIC CAPACITOR CC725CH1H-102J1 342101024R1 C4007...
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8/39 PAGE C4172 UTSP TYPE ELECTROLYTIC CAPACITOR CE04W50V-10M(UTSP) 397581007AT C4173 UTSP TYPE ELECTROLYTIC CAPACITOR CE04W50V-10M(UTSP) 397581007AT C4174 UTSP TYPE ELECTROLYTIC CAPACITOR CE04W10V-220M(UTSP) 397532217AT C4175 UTSP TYPE ELECTROLYTIC CAPACITOR CE04W10V-220M(UTSP) 397532217AT C4209 UTSP TYPE ELECTROLYTIC CAPACITOR CE04W25V-47M(UTSP) 397554707AT C4210 UTSP TYPE ELECTROLYTIC CAPACITOR CE04W25V-47M(UTSP) 397554707AT C4212...
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9/39 PAGE C6252 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-473J 374724734T C6253 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-473J 374724734T C6254 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-473J 374724734T C6255 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-473J 374724734T C6256 TF TYPE PLASTIC FILM CAPACITOR ECQ-V50V-473J 374724734T C6301...
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10/39 PAGE R1736 CHIP TYPE CARBON RESISTOR RN72K1J-471JE 435034714R1 R1737 CHIP TYPE CARBON RESISTOR RN72K1J-471JE 435034714R1 R1740 CHIP TYPE CARBON RESISTOR RN72K1J-103JE 435031034R1 R1741 CHIP TYPE CARBON RESISTOR RN72K1J-103JE 435031034R1 R1742 CHIP TYPE CARBON RESISTOR RN72K1J-103JE 435031034R1 R1743 CHIP TYPE CARBON RESISTOR RN72K1J-103JE 435031034R1 R1744...
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11/39 PAGE R4092 CHIP TYPE CARBON RESISTOR RN72K1J-331JE 435033314R1 R4093 CHIP TYPE CARBON RESISTOR RN72K1J-332JE 435033324R1 R4094 CHIP TYPE CARBON RESISTOR RN72K1J-103JE 435031034R1 R4095 CHIP TYPE CARBON RESISTOR RN72K1J-103JE 435031034R1 R4096 CHIP TYPE CARBON RESISTOR RN72K1J-331JE 435033314R1 R4097 CHIP TYPE CARBON RESISTOR RN72K1J-332JE 435033324R1 R4098...
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12/39 PAGE R5024 CHIP TYPE CARBON RESISTOR RN72K1J-331JE 435033314R1 R5025 CHIP TYPE CARBON RESISTOR RN72K1J-331JE 435033314R1 R5026 CHIP TYPE CARBON RESISTOR RN72K1J-331JE 435033314R1 R5033 NON-FLAMMABLE CARBON FILM RESISTOR R25J-56K 415475634T R5034 NON-FLAMMABLE CARBON FILM RESISTOR R25J-56K 415475634T R5035 NON-FLAMMABLE CARBON FILM RESISTOR R25J-56K 415475634T R5036...
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13/39 PAGE R5313 CHIP TYPE CARBON RESISTOR RN72K1J-151JE 435031514R1 R5314 CHIP TYPE CARBON RESISTOR RN72K1J-151JE 435031514R1 R5315 CHIP TYPE CARBON RESISTOR RN72K1J-151JE 435031514R1 R5316 CHIP TYPE CARBON RESISTOR RN72K1J-151JE 435031514R1 R5393 CHIP TYPE CARBON RESISTOR RN72K1J-152FE 435031522R1 R5394 CHIP TYPE CARBON RESISTOR RN72K1J-122FE 435031222R1 R5395...
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14/39 PAGE R6124 METAL OXIDE FILM RESISTOR RS2WBJ-0.22 442722294T R6125 METAL OXIDE FILM RESISTOR RS2WBJ-0.22 442722294T R6126 METAL OXIDE FILM RESISTOR RS2WBJ-0.22 442722294T R6130 CHIP TYPE CARBON RESISTOR RN72K1J-223JE 435032234R1 R6131 CHIP TYPE CARBON RESISTOR RN72K1J-223JE 435032234R1 R6132 CHIP TYPE CARBON RESISTOR RN72K1J-223JE 435032234R1 R6133...
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15/39 PAGE R6241 CHIP TYPE CARBON RESISTOR RN72K1J-472FE 435034722R1 R6242 CHIP TYPE CARBON RESISTOR RN72K1J-472FE 435034722R1 R6243 CHIP TYPE CARBON RESISTOR RN72K1J-472FE 435034722R1 R6244 CHIP TYPE CARBON RESISTOR RN72K1J-472FE 435034722R1 R6245 CHIP TYPE CARBON RESISTOR RN72K1J-472FE 435034722R1 R6246 CHIP TYPE CARBON RESISTOR RN72K1J-472FE 435034722R1 R6250...
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16/39 PAGE P6003B WIRE HOL NSCT-9P900 25051113 P6003Bor WIRE HOL CHD-2.5-9 ( 1) 25053543 P6005A WIRE HOL NSCT-5P896 25051109 P6005Aor WIRE HOL CHD-2.5-5 ( 1) 25053541 P6005B WIRE HOL NSCT-5P896 25051109 P6005Bor WIRE HOL CHD-2.5-5 ( 1) 25053541 P6080 PLUG NPLG-2P29 25055038 P6081...