Onkyo-HTR320-avr-sm维修电路原理图.pdf

HT-R320 SERVICE MANUALSERVICE MANUAL AV RECEIVER Silver model MODEL HT-R320 Ref. No. 3819 082004 SMDD120V AC, 60Hz RC-479S SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ON 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 RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. RadioFans.CN 收音机爱 好者资料库 HT-R320 SPECIFICATIONS Amplifier Section THD(Total Harmonic Distortion): Damping Factor: Input Sensitivity and Impedance: Output Level and Impedance: Frequency Response: Tone Control: SN Ratio: Speaker Impedance: Video Section Input Sensitivity /Output Level and Impedance: Tuner Section AM Tuning Frequency Range: Usable Sensitivity: S/N Ratio: THD: DVD, VIDEO 1, VIDEO 2, VIDEO 3 Video Outputs A/V Output:MONITOR OUT, VIDEO 1 1 (Optical), 1 (Coaxial) DVD, MULTICHANNEL, CD, TAPE, VIDEO 1, VIDEO 2, VIDEO 3 5.1 Specifications and features are subject to change without notice. Power Output: Front L/R: Center Surround L/R Dynamic Power: 100 W + 100 W 100 W 100 W + 100 W (8 , 20 Hz20 kHz, FTC) 230 W + 230 W (3 , Front) 170 W + 170 W (4 , Front) 115 W + 115 W (8 , Front) 0.08 % (Power Rated) 60 (Front, 1 kHz, 8 ) 200 mV/ 47 k (LINE) 200 mV/ 2.2 k (REC OUT) 10 Hz100 kHz / +0 dB -3 dB (Direct mode) +12 dB, -12 dB, 50 Hz (BASS) +12 dB, -12 dB, 20 kHz (TREBLE) 100 dB (CD, IHF-A) 8 16 1 Vp-p /75 (Composite) TAPE, VIDEO 1 1 5 + 2 1 530 kHz1710 kHz 30 V 40 dB 0.70 % General Power Supply: Power Consumption: Stand-by Power Consumption: Dimensions (W H D): Weight: AC 120 V, 60 Hz 4.7 A 1.6 W 17-1/8 5-7/8 14-3/4 inches 435 150 374 mm 8.8 kg (19.4 lbs ) FM Tuning Frequency Range: Usable Sensitivity: S/N Ratio: THD: Stereo Separation: Video Inputs A/V Input: Audio Inputs Digital Inputs: Analog Inputs: Multichannel Inputs: Audio Outputs Analog Outputs: Subwoofer Pre Outputs: Speaker Outputs: Phones: 87.5 MHz108.0 MHz Stereo 17.2 dBf 2 V (75 IHF) Mono 11.2 dBf 1 V (75 IHF) Stereo 70 dB (IHF-A) Mono 76 dB (IHF-A) Stereo 0.3 % (1 kHz) Mono 0.2 % (1 kHz) 45 dB ( 1 kHz ) RadioFans.CN 收音机爱 好者资料库 SERVICE PROCEDURES HT-R320 1. Replacing the fuses 2. Safety-check out (Only U.S.A. model) After correcting the original service problem perform the following safety check before releasing the set to the customer Connect the insulating-resistance tester between the plug of power supply cord and terminal GND on the back panel. Specifications: More than 10Mohm at 500V This symbol located near the fuse indicates that the fuse used is show operating type, For continued protection against fire hazard, replace with same type fuse, For fuse rating, refer to the marking adjacent to the symbol. Ce symbole indique que le fusible utilise est e lent. Pour une protection permanente, nutiliser que des fusibles de meme type. Ce demier est indique la qu le present symbol est apposre. 3. To initialize the unit This unit does not require memory preservation batteries. A built-in memory power backup system preserves the contents of memory during power failures and even when the power cord is unplugged. The power cord must be plugged in order to charge the backup system. The memory preservation period after the unit has been turned off varies depending on climate and placement of the unit. On average, memory contents are protected over a period of a few weeks after the time the unit has been turned off. This period is shorter when the unit is exposed to a very humid climate. This device employs a microprocessor to perform various functions and operations. If interference generated by an external power supply, radio wave, or other electrical sauce results in accident which causes the specified operations and functions to operate abnormally. To perform a result, please follow the procedure below. 1. Press and the hold down the VIDEO 1 button , then press the STANDBY/ON button when the unit is Power ON. 2. After Clear is displayed, the preset memory and each mode stored in the memory, are initialized and will return to the factory settings. 5. Memory Preservation Main microprocessor Q7008. 1. Press and the hold down the DISPLAY button , then press the STANDBY/ON button when the unit is Power ON. Version is displayed on FL display only for 3 seconds. 2. Press the STANDBY/ON button to Power Off. 4. How to check version of microprocessor? Version 04212a ex. REF. NO. F6901 F6901 or F6902 F6902 or F901 F901 or F903 F903 or DESCRIPTION 8A-UL 8A-T/UL-ST2 8A-UL 8A-T/UL-ST2 8A-UL 8A-T/UL-ST2 5A-UL/T-237 5A-T/UL-ST2 PART NO. 252198 252261 252198 252261 252198 252261 252164 252258 REMARKS ! ! ! ! ! ! ! ! OPERATION CHECK-1 DC VOLTAGE DETECTION PROTECTORS CURRENT DETECTION PROTECTORS HT-R320 Test - _ Test - 1-00 FL display Clear Disappears 0.5 sec. FL display Test - _ Test - 4-00 Test - 4-29 Clear Disappears 1. Set the unit to test mode Test-1-00 . 1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power ON. 1-2. Press the DVD button, while the Test - _ is shown. Unit will be in the state of Test-1-00 . 2. Apply DC voltage (+1.5 to +3V) to MULTI CHANNEL (FL, FR, SL, SR, C) terminal, each channel. 3. Check that Protect is shown. 4. Apply DC voltage (-1.5 to -3V) to MULTI CHANNEL (FL, FR, SL, SR, C) terminal, each channel. 5. Check that Protect is shown. 6. Press the STANDBY/ON button. NOTE1 Limit time to apply voltage is 0.5 to 1.0 seconds each channel. When protection operation does not occur at once, try several times. NOTE2 Dont connect speakers or any load. Dont short speaker terminals. NOTE In the state of test mode Test-4-29 , the pulse waveform output for checking from speaker terminal automatically. Therefore, oscillator is unnecessary. 1. Set the unit to test mode Test-4-29 1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power ON. 1-2. Press the VIDEO 3 button, while the Test - _ is shown. Unit will be in the state of Test-4-00 . 1-3. Repeat and press SPEAKERS B button to the Test-4-29 is shown. 2. Connect the lord resister (3 ohms) to the speaker terminals. 3. Check that the Protect is not shown, and speaker relays not turn OFF. 4. Check the each speaker terminals. 5. Connect the lord resister (1.5 ohms) to the speaker terminals. 6. Check that the Protect is shown, and speaker relays turn OFF immediately. 7. Check the each speaker terminals. 8. Press the STANDBY/ON button. OPERATION CHECK-2 OUTPUT LEVEL & THERMAL DETECTION HT-R320 RL6901 D6904 D6903 RL6902 POWER AMP. PRI.SEC1 Low High +B1 -B1 T901 MAIN TRANSFORMER Low High Q6303 THERMAL SENSOR R6380 THERMAL DETECTION OUTPUT LEVEL DETECTION VOLH/ THPRO Q7008 MAIN MICROPROCESSOR Q6303 SEC1H 23 2 SPEAKER OUT F6901 F6902 Low-voltage HIGH VOLTAGE MODE LOW VOLTAGE MODE +/- 63.0 V +/- 29.0 V High-voltage Regarding the power supply system of this unit. 1. High-voltage mode Usually, the power supply supplies high voltage to the power amplifier circuit when the relay (RL6901) is turned On. 2. Low-voltage mode When as follows, a power supply changes to the state of supplying low voltage when the relay (RL6901) in turned Off. (1) Excessive output signal is continuously outputted from power amplifier. (2) Temperature of a heat sink over 80 degrees. 1. The loss which power amplifier generates is decreased. As a result, the miniaturization of a heat sink is realized. 2. Corresponds to a safety standard. May not notice the fuse (F6901, F6902) broken in the case of repair. Because the power supply is continuing supplying voltage from the High side of SEC1 at high-voltage mode. When a power supply circuit changes to low voltage mode, amplifier does not operate. Therefore, it is very important to check operation of this power supply system containing a fuse. NOTE Dont connect speakers or any load. Dont short speaker terminals. (1) Set the unit is Multi channel input state. (2) Set the master volume into the minimum. (3) Apply sine wave signal to MULTI CHANNEL INPUT (FL+FR+C+SL) terminals. (4) Connect an oscilloscope to speaker terminal of FL channel. (5) Adjust master volume so that a speaker output may become distortion about 5%. (6) Check that the RL6901 and RL6902 are turned Off after about 5 seconds progress. And the power supply changes to low-voltage mode. (7) Adjust the master volume so that output voltage may become half. (8) Check that the RL6901 and RL6902 are turned On after 2 to 3 minutes. And the power supply returns to high-voltage mode. OPERATION CHECK-3 OUTPUT LEVEL & THERMAL DETECTION HT-R320 P6301 COM TH1 TH2 30 U16 NAAF-8245 POWER AMPLIFIER PC BOARD P6301 TH1 COM Front side 2.7 kohms 1W Test - _ Test - 3-00 Test - 3-02 Test - 3-02 FM STEREO FM STEREO Clear Disappears 0.5 sec. Clear Disappears 0.5 sec. Test - 3-02 FM STEREO FM STEREO OUTPUT LEVEL DETECTION 1. Set the unit to test mode Test-3-2 1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power On. 1-2. Press the VIDEO 2 button, while the Test - _ is shown. Unit will be in the state of Test-3-00 . 1-3. Repeat and press SPEAKERS B to while the Test-3-2 is shown. 2. Apply signal (sine wave 1kHz, -1.5dBV) to MULTI CHANNEL (FL, FR, SL, SR, C) terminal, each channel. 3. Check that FM STEREO indicator is shown. 4. Press the STANDBY/ON button. THERMAL DETECTION 1. Set the unit to test mode Test-3-2 Refer to the clause of Output level detection. 2. Connect the resistor (2.7 kohms, 1W) between HT1 and COM terminals of P6301. 3. Check that FM STEREO indicator is shown. 4. Press the STANDBY/ON button. The following is the procedure of checking detection operation of a microprocessor in false, by using test mode. OPERATION CHECK-4 DSP DEBUG MODE HT-R320 DSP Debug Mode Version 04212a E1 A- - - 0 - o 2 3 o FL display Details of FL display 142568793 1 sec. TIn this test mode, the check with normal communication of a microprocessor and the data of DSP and DIR is possible. This information is a help to find the cause of failure. UNLOCK E = UNLOCK = LOCK 1 Digital Selector D = DIGITAL A = ANALOG 1 = COAX 2 = OPT1 3 = OPT2 4 = Others 2 Sampling Frequency 96 = 96kHz 48 = 48kHz 44 = 44kHz 32 = 32kHz = Not detect 3 MEMORY Address 0 = AC3+PLII 1 = AC3/PCM+T-D 2 = DTS/DTS-ES 3 = DTS 5 = AAC+PL6 : COS 7 = FACTORY TEST MODE 6 Pre Emphasis K = OFF e = ON 4 ROM/RAM Select/Download Status H = RAM (Complete Auto Boot) L = ROM (Under Auto boot) 7 DSP Detect Format IEC61937 00 = Null 01= Dolby Digital 03 = Pause 04 = MPEG1 L1 05 = MPEG1 L23/MPEG2 w/o 06 = MPEG2 w/o 07 = MPEG2 AAC 0B = DTS1 0C = DTS2 0D = DTS3 1B = MPEG2 AAC1 1C = MPEG2 AAC2 Except IEC61937 20 = Silent 21 = DTS LD 22 = DTS CD 23 = PCM 8 DSP Decode 0 = Decode OK X = Decode NG - = Analog in 9 1. Press and hold down the DISPLAY button, then press the STANDBY/ON button when the unit is power ON. 2. Press the DISPLAY button, while the Version 04212a is shown. Press STANDBY/ON button. DIR MEMORY/DOWNLOAD DIR Status 0 = PCM/ANALOG 2 = DTS CD 5 = DD/DTS/AAC 5 DSP HT-R320 EXPLODED VIEWS-1 HT-R320 U04 U03 P7502 P7503 U02 F903 F6902 F6901 U18 U19 U01 U10 U25 U09 U27 P101 U23 U08 P901 U12 T901 U11 U20 U17 P800 x 8 A028 A035 A020 x 6 A050 A051 x 6 A030 A021 A007 x 3 A005 x 10 A411 A004 A021 A021 x 2 A036 x 2 A025 A024 A404 x 24 A401 A026 A055 x 4 A010 A002 x 2 A421 x 3 A065 A413 A412 A414 A060 A420 A410 A056 x 8 A057 x 4 A017 x 2 A017 A016 x 2 A015 A023 x 4 A435 F901 Refer to in EXPLODED VIEWS-2 Refer to in EXPLODED VIEWS-2 U26 A022 A425 HT-R320 EXPLODED VIEWS-2 HT-R320 Q6064 Q6063 Q6062 Q6061 Q6060 Q6050 Q6051 Q6052 Q6054 Q6053 Q6050A x10 A037 x10 A416 (L=85mm) A417 (L=160mm) FRONT PANEL INSIDE VIEW A416 (L=85mm) A415 (L=135mm) A418 (L=215mm) SCHEMATIC DIAGRAMS-1 PRE-AMPLIFIER SECTION HT-R320HT-R320 A 1 2 3 4 5 BCDEFGH Q7004 BA33C25 2.5V 5 3.3V 4 G 3 NC 2 VI 1 P406 L805NC Q702NC A020 A119 A1031 A11 1 A1212 A13 4 A14 5 A1511 A1610 A17 6 A18/VPP 9 A218 A317A416 A515 A614 A713 A8 3 A9 2 DQ021 DQ122 DQ223 DQ325 DQ426 DQ527 DQ628 DQ729 VCC 8 VSS24 CE30 OE32 WE/A18 7 P801TO NAETC-7884 Q9501 2SA1015-GR KTA1266-GR Q6402 78M12 GI O Q6406 78M05 GI O Q6405 78M12 GI O Q6403 79M12 G IO P6403 P306 TO NAAF-7866 P410B TO NAETC-7868 P7502B TO NADIS-7403 P411B TO NAETC-7868 Q32178L07 GI O Q32279L07 GI O P302 VIDEO-3 IN P261A NC P802 NC P305 DVD SURROUND R SURROUND L SUB WOOFER CENTER P304 VIDEO-1 OUT VIDEO-1 IN VIDEO-2 IN P301 CD TAPE IN TAPE OUT Q7003 TC74HCT7007 1 2 3 4 5 6 78 9 10 11 12 13 14 NC FOR FLASH WRITER P101 TO TUNER UNIT Q101 NC T2 T1 VSS2 VDD2 XI X0 T57 RCLK CMP VSS3 VSS1 VDD1 MUX VREF RDSDATA QUAL Q181 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 Q7008 MPD784225GC-249-8BT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Q710 NC 1A1 1B2 1Y3 2A4 2B5 2Y6 3A 10 3B 9 3Y 8 4A 13 4B 12 4Y 11 GND7 VCC14 D7702UDZ6.2B D9508 UDZ27D Q7007 KRC104S OR RN1404 Q7006 KRC104S OR RN1404 Q7001 KRC104S RN1404 Q317 NC Q319 NC Q318 NC R743NC R744NC R745 NC R7000 100 R187 R186 R182 NC R183NC R185 R184 NC R747 NC R742 NC R740 NC R9508 15K R9509100K R9506 22 (/2W R9507 15K Q703NC A020 A119 A1031 A11 1 A1212 A13 4 A1411 A15 7 A1610 A218 A317A416 A515 A614 A713 A8 3 A9 2 CE2 6 GND24 IO121 IO222 IO323 IO425 IO526 IO627 IO728 IO829 NC 9 VCC 8 CE130 OE32 WE 5 TVDD DVDD VCOM DFZ1 LOUT3 ROUT3 LOUT2 ROUT2 LOUT1 ROUT1 LIN PVDD VREFH AVDD AVSS DFZ2 CSN CCLK CDTI CDTO INT1 INT0 SDTI3 SDTI2PDN RX1 I2C RX2 TST RX3 SLAVE RX4 PVSS R SDTO BICK LRCK MCKO TX DVSS XTI Q801 AK4586 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Q701 CS493264-CL A0/SCCLK7 A1/SCDIN6 AUDATA041 AUDATA1 40 AUDATA239 CLKIN30 CLKSEL31 CMPCLK/SCLKN228 CMPDAT/RCV958/SDATAN227 CMPREQ/ LRCLKN2 29DATA017 DATA116 DATA215 DATA314 DATA411 DATA510 DATA69 DATA78DC38 DD37 FILT133 FILT232 LRCKN126LRCLK42 MCLK44 SCDIO/SCDOUT19 SCLK43SCLKN1/STCCLK225 SDTAN122 VDD11 VDD212 VDD323 VDDA34 VSS12 VSS213 VSS324 VSSA35 XMT9583 ABOOT/_INTREQ20 CS18 EXTMEM21 RD/R/_W5 RESET36 WR/DA4 P7701 NC* TO RS232C X7001 CSTCV12.5MXJ X701CSTCV12.2MTJ0C4 L7002 022M NCH-1471 L7001470K NCH-1479 L703 470M NCH-1479 L706 BK1608LM182 L705 BK1608LM182 L181 L804 022M NCH-1471 L801 022M L802 022M L803 022M L704 022M NCH-1471 L701 022M NCH-1471 L702 022M NCH1471 X181 NC X801 HC-49/U03C 12.288M Q707 TC7WU04FU GND4 1 63 72 5 8 Q7002 TC74VHC541FT A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 GND10 VCC20 Y118 Y217 Y316 Y415 Y514 Y613 Y712 Y811 G11 G219 Q706NC 1CK3 1D2 1Q5 2CK 11 2D 12 2Q9 GND7 VCC 14 1CLR1 1PR4 1Q6 2CLR 13 2PR 10 2Q8 Q704 N