Onkyo-DTR30_1-avr-sm 电路图 维修手册.pdf
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1、DTR-30.1 SERVICE MANUAL AV RECEIVER Black model MODEL DTR-30.1 120V AC, 60Hz 230V AC, 50Hz BMDD BMPA Ref. No. 4126 MAY, 2009 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
2、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. RC-739M RadioFans.CN 收音机爱 好者资料库 TX-SR607/DTR
3、-30.1 DEBUG MODE-1 DSP DEBUG MODE-1/3 0A48K0N/0FFPo0 14256871039 The operations of DSP and DIR etc are able to be checked by the information displayed on FL with this debug mode. This information will help to analyse no sound trouble of digital audio. To set in Debug Mode and exit 1. Press and hold
4、down DISPLAY button, then press ON/STANDBY button while the unit is powered on. The version number of microprocessor will be displayed. 2. Then press + (TONE) button, the version number of DSP will be displayed. 3. Press DISPLAY button while the DSP version is displayed. The status of DSP and DIR et
5、c will be displayed. 4. Press ON/STANDBY button to exit. Content of Display DIR Input Lock / Unlock E = UNLOCK = LOCK DIR Input RX 0 = None 1 = COAXIAL 1 2 = COAXIAL 2 3 = OPTICAL 1 4 = OPTICAL 2 5 = FRONT OPTICAL 8 = HDMI 1 9 = HDMI 2 DIR/ ADC Fix Mode D = Digital(SPDIF) A = Analog M = Analog Multi
6、ch p = PCM Fixed d = DTS Fixed 1 2 Sampling Frequency, Emphasis 32K = 32 kHz without Emphasis 44K = 44.1 kHz without Emphasis 48K = 48kHz without Emphasis 64K = 64 kHz 88K = 88.2 kHz 96K = 96 kHz 176 = 176.4 kHz 192 = 192 kHz 32e = 32 kHz with Emphasis 44e = 44.1 kHz with Emphasis 48e = 48 kHz with
7、Emphasis DIR Detect Type 0 = Analog 1 = PCM 2 = Not PCM 3 = Data 4 = DTS CD (Not used) 5 = Multichannel 6 = Not Decided CODEC Clock Mode N = Normal U = Up Sampling H = High Sampling (Double Rate) D = Down Sampling Q = Quad Rate 4 5 3 6 11 D:1.01/09227a67 FL Display Version of Main Microprocessor F/W
8、 *Number depends on the version. Version of DSP F/W *Number depends on the version. M:1.04/09323a RadioFans.CN 收音机爱 好者资料库 DEBUG MODE-2 DSP DEBUG MODE-2/3 TX-SR607/DTR-30.1 DSP Port Status This figure is displayed in hexadecimal form. If this is transformed to binary form, each bit indicates the foll
9、owing DSP port status. Refeo to . 7 Mute output device This figure is displayed in hexadecimal form. If this is transformed to binary form, each bit indicates the IC which outputs error to microprocessor, which output Audio Mute. Refer to . 11 DSP Sequence 00 - FE = Not Free 2D = Mute control FF = F
10、ree 8 bit 0: Selector IC (Q5501) bit 1: Effector bit 2: DSP (Q201) bit 3: DIR (Q301) 0 = 0 0 0 0 1 = 0 0 0 1 2 = 0 0 1 0 4 = 0 1 0 0 8 = 1 0 0 0 HexadecimalBinary DSP Detect Format P = PCM (Analog) D = Dolby Digital d = DTS A = AAC S = DSD p = Dolby Digital+ T = TrueHD H = DTS-HD High Resolution M =
11、 DTS-HD Master Audio ? = Unknown Format DSP Decode o = Decode OK x = Decode NG 9 10 Transform bit 0 = NIC bit 1 = DEC bit 2 = BUSY bit 3 = Exec Wait (Normal state) (Abnormal state) Troubleshoot by DSP DEBUG MODE 1. This debug mode will be useful in digital audio no sound or sound drop-out trouble. 2
12、. Check information on FL display, then identify bad parts, and replace or resolder it. 3. Remdies Written below are of typical case. So, more detailed check may need in actual cases. 4. Before replace ICs below, resolder the pins first to save resources. NOTE Function MPU (Main microprocessor) DSP
13、DIR and DAC Flash ROM SDRAM Audio processor (Selector/ Volume) Content of Display (Continued) No input signal to DIR. No input signal to DIR. No input signal to DIR. E E is displayed Displayed sampling frequency is different from input signal. Displayed audio format is different from input signal. D
14、igit No. on FL Symptom on FL DisplayCause of TroubleRemedy 1 4 9 1. Find out which digital input does not work. 2. Confirm where the digital waveform stops between the digital input and DIR. 3. Resolder pins of the bad part or replace it with new one. The same as above. The same as above. Schematic
15、Diagram PART-5 PART-13 PART-5 PART-13 PART-13 PART-3 Circuit No. Q701 Q201 Q301 Q282 Q281 Q5501 RadioFans.CN 收音机爱 好者资料库 DEBUG MODE-3 DSP DEBUG MODE-3/3 TX-SR607/DTR-30.1 Troubleshoot by DSP DEBUG MODE (Continued) Interface between DSP and MPU is no good. Connection from DIR to DSP is no good. Interf
16、ace between DSP and MPU is no good. DSP Sequence is no good. Communication between DSP and MPU is no good. Writing from MPU to DSP is no good. DSP program does not run properly. Flash ROM or SDRAM is no good. The unit was powered off during DSP firmware updating. DSP program does not run properly. F
17、lash ROM or SDRAM is no good. DSP program does not run properly. Or audio clock to DSP is no good. DSP setting is failured. Input signal to DSP is no good. a. No input signal to DSP. b. Interface between DSP and MPU is no good. The IC outputs error to MPU. Continue to display 1 1 Continue to display
18、 2 2 Continue to display 3 3 to7 7 Continue to display 8 8 to F F Continue to display 0303 Continue to display 0505 Continue to display 0909 to 0C0C Continue to display 1717 Display 2121, then return and signal format indicator is flashing. Continue to display 2222 to 2424, or 3030 to 3333. Continue
19、 to display 2626 to 2F2F Displayed audio encoding format is different from input signal. x x is displayed. This identifies IC which outputs error to microprocessor. 7 10 9 11 The same remedy as 10 -b. The same remedy as 9 . The same remedy as 10 -b. Check 8 items. 1. The same remedy as 10 -b. 2. Che
20、ck the voltage of the power supply pin of DSP. 3. Check the reset port and clock input of DSP by oscilloscope, and find out bad part. 4. Flash ROM firmware is no good. Update. 5. DSP or MPU is broken. Replace MPU. DSP is impossible to replace, so replace with a new PC board. 1. Flash ROM firmware is
21、 no good, update. 2. Check DSPSDO pin of MPU by oscilloscope. If no signal, find out bad part connected. 3. Flash ROM or SDRAM is no good, replace. 4. DSP or MPU is broken, replace it by the same method as above 5. 1. Flash ROM firmware is no good, update. 2. Flash ROM or SDRAM is broken, replace. I
22、nitialize the unit. (Press ON/STANDBY button while pushing VCR/DVR button when the unit is powered on.) 1. Flash ROM firmware is no good, upgrade. 2. Flash ROM or SDRAM is broken, replace. 1. Flash ROM program is no good, upgrade. 2. Flash ROM or SDRAM is broken, replace. 3. Check DSP drive clock fr
23、eq. by oscilloscope. If no signal, find out bad part connected. 4. Check audio clock to DSP by oscilloscope. If no signal, find out bad part connected. 1. Flash ROM firmware is no good, upgrade. 2. Flash ROM or SDRAM is broken, replace. 1. Confirm where the digital waveform stops between DIR and DSP
24、 by oscilloscope. 2. P8001, P8002 may relate. 3. Resolder pins of the bad part or replace it with new one. The same as above. 1. Confirm where the digital waveform stops between MPU and DSP by oscilloscope. 2. P8001, P8002, P8003 may relate. 3. Resolder pins of the bad part or replace it with new on
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