Onkyo-HTX22HD-sur-sm维修电路原理图.pdf

《Onkyo-HTX22HD-sur-sm维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Onkyo-HTX22HD-sur-sm维修电路原理图.pdf（98页珍藏版）》请在收音机爱好者资料库上搜索。

1、HTX-22HD SERVICE MANUALSERVICE MANUAL RC-720S DIGITAL SURROUND SYSTEM Black model MODEL HTX-22HD(B) 230V AC, 50HzB MPB Ref. No. 4073 062008 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.

2、 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 HTX-2

3、2HD EXPLODED VIEWS-1 AMPLIFIER SECTION HTX-22HD A01 A30 A110 P8001 A39 A32 A24 A62 Q5001A Refer to PC Board parts list A45 A134 A130 A21 A22 L=65mm A22 L=40mm U03 U01 U10 U09 U11b U08b U05 U02 U04 U06 U07b A12 A24 A24 A101 E889 E890 E890 F901 T901 A06 x 5pcs A42 x 5pcs A08 x 4pcs A06 x 4pcs E892 x 2

4、pcs A08 x 3pcs A24 x 2pcs A34 x 2pcs A20 x 4pcs A105 x 15pcs A106 x 3pcs A23 x 6pcs A24 x 2pcs A24 x 2pcs A107 x 4pcs A108 x 4pcs A800 L=150mm A132 L=150mm A132 L=150mm A16 x 2pcs Refer to EXPLODED VIEWS-2 RadioFans.CN 收音机爱 好者资料库 HTX-22HD EXPLODED VIEWS-2 SPEAKER SECTION HTX-22HD SP12 SP08 SP01 SP05

5、 x 4pcs SP13 (With SP14) SP14 (Badge) SP09 x 2pcs L=35mm SP11 x 2pcs L=85mm SP10 L=95mm SP06 x 5pcs SP15 -Rear- Refer to EXPLODED VIEWS-1 HTX-22HD EXPLODED VIEWS-3 FRONT SPEAKER (HTX-22HDST) HTX-22HD SP22 (With SP23) SP23 SP22 (With SP23) SP23 - - - - - SP21 (L CDIN is the input data line for contro

6、l port interface in SPI mode. 2 3 4 51 5 52 6 7 8 9 HTX-22HD TERMINAL DESCRIPTION IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -8 Q301 : CS42518 (8-ch CODEC with S/PDIF Receiver) -3/4 NamePin No. Function AD0/CS10Address Bit 0 (I2C)/Control Port Chip Select (SPI) (INput) - AD0 is a chip address pin i

7、n I2C mode; CS is the chip select signal in SPI mode. INT11Interrupt (Ountput) - The CS42518 will generate an interrupt condition as per the Interrupt Mask register. RST12Reset (Input) - The device enters a low power mode and all internal registers are reset to their default settings when low. AINR-

8、 AINR+ 13 14 Differential right Channel Analog Input (Input) - Signals are presented differentially to the delta-sigma modulators via the AINR+/- pins. AINL- AINL+ 15 16 Differential right Channel Analog Input (Input) - Signals are presented differentially to the delta-sigma modulators via the AINR+

9、/- pins. VQ17Quiescent Voltage (Output) - Filter connection for internal quiescent reference voltage. FILT+18Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits. REFGND19Reference Ground (Input) - Ground reference for the internal sampling circuits. AO

10、UTA1 +, - AOUTB1 +, - AOUTA2 +, - AOUTB2 +, - AOUTA3 +, - AOUTB3 +, - AOUTA4 +, - AOUTB4 +, - 36, 37 35, 34 32, 33 31, 30 28, 29 27, 26 22, 23 21, 20 Differential Analog Output (Output) - The full-scale differential analog output level is specified in the Analog Characteristics specification table.

11、VA VARX 24 41 Analog Power (Input) - Positive power supply for the analog section. AGND25 40 Analog Ground (Input) - Ground reference. Should be connected to analog ground. MUTEC38Mute Control (Output) - The Mute Control pin outputs high impedance following an initial power -on con- dition or whenev

12、er the PDN bit is set to a 1, forcing the codec into power -down mode. The signal will remain in a high impedance state as long as the part is in power-down mode. The Mute Control pin goes to the selected active state during reset, muting, or if the master clock to left/right clock frequency ratio i

13、s incorrect. This pin is intended to be used as a control for external mute circuits to prevent the clicks and pops that can occur in any single supply system. The use of external mute circuits are not manda- toy but may be desired for designs requiring the absolute minimum in extraneous clicks and

14、pops. LPFLT39PLL Loop Filer (Output) - An RC network should be connected between this pin and ground. RXP7/GPO7 RXP6/GPO6 RXP5/GPO5 RXP4/GPO4 RXP3/GPO3 RXP2/GPO2 RXP1/GPO1 42 43 44 45 46 47 48 S/PDIF Receiver Input/ General Purpose Output (Input/ Output) - Receiver inputs for S/PDIF encoded data. Th

15、e CS42518 has an internal 8:2 multiplexer to select the active receiver port, according to the Receiver Mode Control 2 resister. These pins can also be configured as general purpose output pins, ADC Overflow indicators or Mute Control outputs according to the RXP/General Purpose Pin Control resister

16、s. RXP049S/PDIF Receiver Input (Input) - Dedicated receiver input for S/PDIF encoded data. TXP50S/PDIF Transmitter Output (Output) - S/PDIF encoded data output, mapped directly from one of the receiver inputs as indicated by the Receiver Mode Control 2 resister. VLP53Serial Port Interface Power (Inp

17、ut) - Determines the required signal level for the serial port interfaces. SAI_SDOUT54Serial Audio Interface Serial Data Output (Output) - Output for twos complement serial audio PCM data from the S/PDIF incoming stream. This pin can also be configured to transmit the output of the inter- nal and ex

18、ternal ADCs. RMCK55Recovered Master Clock (Output) - Recovered master clock output from the External Clock Reference HTX-22HD TERMINAL DESCRIPTION IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -9 Q301 : CS42518 (8-ch CODEC with S/PDIF Receiver) -4/4 NamePin No. Function CL_SDOUT56CODEC Serial Data Out

19、put (Output) - Output for twos complement serial audio data the internal and external ADCs. ADCIN1 ADCIN2 58 57 External ADC Serial Input (Input) - The CS42518 provides for up two external stereo analog to digital converter inputs to provide a maximum of six channels on serial data output line when

20、the CS42518 is placed in One Line mode. OMCK59External Reference Clock (Input) - External clock reference that must be within the ranges specified in currently active on the serial audio data line. SAI_LRCK60Serial Audio Interface Left/Right Clock (Input/Output) - Determines which channel, Left of R

21、ight, is currently active on the serial audio data line. SAI_LRCK61Serial Audio Interface Serial Clock (Input/Output) - Serial clock for the Serial Audio Interface. HTX-22HD IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -10 Q5501 : R2S15211FP (8 ch Electronic Volume and 11 Input Selector and Tone Cont

22、rol) -1/3 SYSTEM DIAGRAM Lout REC Lch Rout Input ATT Out L for ADC REC AGND Out R for ADC Rch AVCC Multi Rin Multi Lin 3 4 5 6 7 8 9 1 2 Tone Rch Tone Bass & Treble Lch Tone 10 11 3 4 5 6 7 8 9 1 2 10 11 SLout Multi SLin Multi SRin Cout SWout Multi Cin Multi SWin SBLout Multi SBLin Multi SBRin AVEE

23、SUB SUB MCU I/F CLOCKDATA Bass & Treble Volume Volume Input ATT mono SBRout SRout Volume Volume Volume Volume Volume Volume Volume Volume Input selectorInput selector Volume Volume HTX-22HD IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -11 Q5501 : R2S15211FP (8 ch Electronic Volume and 11 Input Select

24、or and Tone Control) -2/3 BLOCK DIAGRAM AGND 5-C AGND 3-C AGND 1-C CLOCK AVCC INLB/RECL2 INRB/RECR2 INR11/RECR5 INL10/RECL4 RECR3 INL11/RECL5 FLIN1 RECL3 CIN1 FRIN1 SLIN1 SWIN1 ADCL ADCR FLIN2 FRIN2 SLIN2 SRIN2 CIN2 SWIN2 SBLIN2 SBRIN2 BASSR2 TRER BASSR1 TREL BASSL1 BASSL2 FLOUT 6-C FLC FROUT AGND F

25、RC DATA SBLIN1 SRIN1 SBRIN1 1-OUT (SBL OUT) DGND 2-OUT (SBR OUT) 3-OUT (C OUT) 2-C 4-OUT (SW OUT) 5-OUT (SL OUT) 4-C 6-OUT (SR OUT) INL5 INL1 INR1 INL2 INR2 INL3 INR3 INL4 INR4 INR5 INL6 INR6 INL7 INR7 INL8 INR8 INLA/RECL1 INRA/RECR1 INL9 INR9 AVEE SUBR SUBL MONO INR10/RECR4 656667686970717273747576

26、77787980 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 64 63 62 61 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 40393837363534333231302928272625 AVCC MCU I/F MAIN SUB REC ATT Bass / Treble +16-95dB (1dBst ep) +16-95dB (1dBstep) +16-95dB (1dBstep) +16-95dB (1dBstep) +1

27、6-95dB (1dBstep) +16-95dB (1dBstep) Tone +160dB (1dBstep) Tone Bass / Treble -14+14dB (2dB step) 0-95dB (1dBstep) +160dB (1dBstep) 0-95dB, -14+14dB (1dBstep) (2dB step) 0/-6/-12/-18dB HTX-22HD IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -12 Q5501 : R2S15211FP (8 ch Electronic Volume and 11 Input Sel

28、ector and Tone Control) -3/3 TERMINAL DESCRIPTION PIN No.NameFunction 42DATA 43CLOCK 35,34, 33,32, 31,30, 29,28 71RECR3 23,27 21,22, 25,26 19,17, 14,12, 9,7, 4,2 FROUT, FLOUT, 6-OUT, 5-OUT, 4-OUT, 3-OUT, 2-OUT, 1-OUT 73,74, 75,76, 77,78, 79,80 20,16, 15,11, 10,6, 5,1 46,48,50, 52,54,56, 58,60,64 45,

29、47,49, 51,53,55, 57,59,63 36,37ADCL, ADCR 72 3,8, 13,18 AGND 24AVCC 41DGND 44 AVEE 38,39 RECL3 40MONO 61,62, 65,66, 67,68, 69,70 Input pin of L/R/C/SW/SL/SR/SBL/SBR channel (Multi IN 1/2) Output pin of FL/FR/C/SW/SL/SR/SBL/SBR channel Input pin of monaural (Input Selector) Output pin for L/R channel

30、 SUB Output Output pin for L/R channel ADC Output pin for L/R channel REC Output Input pin of L/R channel (Input Selector)/ Output pin for L/R channel REC Output Connects capacitor for reducing click noise of L/R/C/SW/SL/SR/SBL/SBR channel volume Analog ground of internal circuit Frequency character

31、istic setting pin of L/R channel tone control(Treble) Frequency characteristic setting pin of L/R channel tone control(Bass) Positive power supply to internal circuit Input pin of L/R channel (Input Selector) Digital ground of internal circuit Input pin of control data Input pin of control clock Neg

32、ative power supply to internal circuit FLIN1, FRIN1, CIN1, SWIN1, SLIN1, SRIN1, SBLIN1, SBRIN1 TREL, TRER FRIN2, FLIN2, SRN2, SLIN2, SWIN2, CIN2, SBRIN2, SBLIN2 INRA/RECR1, INLA/RECL1, INRB/RECR2, INLB/RECL2, INR10/RECR4, INL10/RECL4, INR11/RECR5, INL11/RECL5 FRC, FLC, 6-C, 5-C, 4-C, 3-C, 2-C, 1-C B

33、ASSL1, BASSL2 BASSR1, BASSR2 SUBL, SUBR INL1, INL2, INL3, INL4, INL5, INL6, INL7, INL8, INL9 INR1, INR2, INR3, INR4, INR5, INR6, INR7, INR8, INR9 HTX-22HD IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -13 Q8503 : M66005-0001AHP (FL Tube Driver) BLOCK DIAGRAM TERMINAL DESCRIPTION These pins are used to

34、 connect to digit pins of VFD. RESETReset inputThis pin is used to initialize the internal state of the M66004. CSChip select input L : Communication with the MCU is possible. H : Any instruction from the MCU is neglected. SCKShift clock inputAt the rising edge from L to H, input data is shifted. SD

35、ATASerial data inputCharacter code or command data to display is input from MSB. XIN, XOUT Clock input Clock output This pin is used to connect a resister and a capacitor externally to set oscillation frequency. DIG00 DIG15 Digit output SEG00 SEG39 Segment output P0, P1Output port (static operation)

36、 VSSGND VPNegative power supply for VFD drive. VCC1 VCC2 Positive power supply for internal logic. Positive power supply for high-pressure-resistant output port. SYMBOLPIN NAMEDESCRIPTIONPIN NO. 13 14 15 16 21, 20 112 6164 2331 3359 17, 18 19 60 22 32 These pins are used to connect to segment pins o

37、f VFD. 14 15 16 CG ROM (35bit x 160) CG RAM (35bit x 16) code write data dot data write code select 12 1 DIG00 DIG11 scan pulse CS SCK SDATA 21 20 XIN XOUT 13RESET 18 17 2 P0 P1 19 60 22 32 Vcc1 Vcc2 Vss Vp Code/ command control circuit Bank 1 : 8bit x 16 Bank 2 : 8bit x 64 Segment output circuit Se

38、gment/ Digit select/ output circuit Clock generator timing clock Display controller Serial receive circuit Display code RAM Digit output circuit 59 33 31 23 64 63 62 61 DIG12/SEG36 DIG13/SEG37 DIG14/SEG38 DIG15/SEG39 SEG00 SEG26 SEG27 SEG35 24 SEG34 HTX-22HD SERVICE PROCEDURE HTX-22HD ! ! 1. Replaci

39、ng the fuse REF. NO. F901 F901 or PART NAME FUSE FUSE DESCRIPTION 1A-SE-EAK FUSE 1A-SE-TL250V 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 adjac

40、ent 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. PART NO. (SN) 252070GR 252271GR 3. To initialize the unit (1) Press the STANDBY/ON button to tu

41、rn on the unit. (2) Press and hold down the LISTENING MODE button, then press the STANDBY/ON button. (3) Disconnect the power cord from the AC outlet. REMARKS 2. To check versions of Main and DSP (1) Press the STANDBY/ON button to turn on the unit. (2) Set MASTER VOLUME value to 10. (3) Press and ho

42、ld down the INPUT button, then press the STANDBY/ON button. Main FW version will be shown. (Main : Main microprocessor) (4) Press the LISTENING MODE button. DSP FW Version will be shown. (DSP : DSP ROM) (5) Press the STANDBY/ON button to put the unit into the Standby mode. (6) Disconnect the power c

43、ord from the AC outlet. * It depends on the version. FL display DSPHT205 : 08327A * It depends on the version. FL display Main1.00/08407A FL display - STANDBYClear HTX-22HD FIRMWARE UPDATE -1 Main microprocessor PC (Personal computer) RS232C FFC Flashwriter Jig 0JFLASH HTX-22HD Rear Panel Connector

44、slot for update Flashwriter Jig 0JFLASHEX 4 line cuts (for non-Main) DSPHT205 : 08327A Main1.00/08407A * It depends on the version. * It depends on the version. (Target unit) How to Check Versions of Main and DSP 1. Press STANDBY/ON button to turn on the unit. 2. Set MASTER VOLUME value to 10. 3. Ho

45、ld down INPUT button and then press STANDBY/ON button. Main FW version will be shown. (Main : Main microprocessor) 4. Press LISTENING MODE button. DSP FW version will be shown. (DSP : DSP ROM) 5. Press STANDBY/ON button to put the unit into the Standby mode. Preparation for Update (Main) Customer se

46、ttings will be overwritten by the default settings. Audyssey 2EQ setting will be necessary again after update because EQ settings set by Audyssey 2EQ cannot be displayed to take a memo for manual setting. 1. Personal computer(PC) : 1 (Windows XP or 2000) 2. Flashwriter jig : 1 each (1) 0JFLASH Part

47、No. : 0JFLASH (2) 0JFLASHEX Part No. : 0JFLASHEX (for non-Main with 4 line cuts) 3. Writing soft : Update_DHT9HD_M_101.zip(File name depends on the version.) Unzip Update_DHT9HD_M_101.zip in advance. * For a writing soft, contact Onkyo or your local distributor. 1. While a target unit is off, connec

48、t RS-232 terminal of 0JFLASH to PC and insert FFC(9 contacts) of 0JFLASHEX to a connector slot on Rear Panel of the target unit. 2. Turn on the unit. HTX-22HD FIRMWARE UPDATE -2 Main microprocessor (Continued) * It depends on the version. Search F/W. FW Update 01000 FW Update 02000 OK : Sum=F9239467

49、 This information will appear when the click of Main Update is accepted. Main Update Procedure 1. Make sure that the unit is on. 2. Double-click Update.exe in the unzipped folder Update_DHT9HD_M_101. The following window will appear. (Folder name depends on the version.) 3. Click Main Update button to start update. It takes about 3 minutes. The message on Front Display will change as follows. 4. After update completes, the unit