Jvc-KDX-125-EE-Service-Manual(1) 电路图 维修手册.pdf

《Jvc-KDX-125-EE-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Jvc-KDX-125-EE-Service-Manual(1) 电路图 维修手册.pdf（62页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL COPYRIGHT 2015 JVC KENWOOD Corporation No.MA606 2015/4 DIGITAL MEDIA RECEIVER MA60620154 SERVICE MANUAL KD-X120EE, KD-X120EU, KD-X120U, KD-X120UT, KD-X125EE, KD-X220E, KD-X220EN, KD-X220EY, KD-X220J, KD-X220U, KD-X220UR, KD-X220UT COPYRIGHT 2015 JVC KENWOOD Corporation Lead free solde

2、r used in the board (material: Sn-Ag-Cu, melting point: 219 Centigrade) Lead free solder used in the board (material: Sn-Cu, melting point: 230 Centigrade) DETACHABLE PANEL Mounting sleeve (GE20342-001A) DC cord (QAM1329-001) Trim Plate (GE20363-001A) Remote control unit (RM-RK52M) ModelParts number

3、 KD-X120EE KD-X120EU KD-X120U KD-X120UT KD-X125EE KD-X220E KD-X220EN KD-X220EY KD-X220J KD-X220U KD-X220UR KD-X220UT CP-X120EED CP-X120EUD CP-X120UD CP-X120UD CP-X125EED CP-X220ED CP-X220ED CP-X220ED CP-X220JD CP-X220UD - CP-X220UDHook (GE40646-001A) x2 DC cord (QAM13xx-00 x) Carrying case (GE40521-

4、001A) RadioFans.CN 收音机爱 好者资料库 (No.MA606)2/20 SPECIFICATION For US Subject to change without notice. TUNER FMFrequency Range87.9 MHz - 107.9 MHz (200 kHz step) 87.5 MHz - 108.0 MHz (50 kHz step) Channel Space Selection50 kHz/200 kHz Usable Sensitivity (S/N = 26 dB)8.2 dBf (0.71 V/75 ) Quieting Sensit

5、ivity(DIN S/N = 46 dB)17.2 dBf (2.0 V/75 ) Frequency Response (3 dB)30 Hz - 15 kHz Signal-to-Noise Ratio (MONO)64 dB Stereo Separation (1 kHz)40 dB AMFrequency Range530 kHz - 1 700 kHz (10 kHz step) 531 kHz - 1 611 kHz (9 kHz step) Channel Space Selection9 kHz/10 kHz Usable Sensitivity (S/N = 20 dB)

6、29 dB (28.2 V) USB USB StandardUSB 1.1, USB 2.0 (Full speed) Compatible DevicesMass storage class File SystemFAT12/ 16/ 32 Maximum Supply CurrentDC 5 V 1 A D/A Converter24 Bit Frequency Response (1 dB)20 Hz - 20 kHz Signal-to-Noise Ratio (1 kHz)105 dB Dynamic Range88 dB Channel Separation90 dB MP3 D

7、ecodeCompliant with MPEG-1/2 Audio Layer-3 WMA DecodeCompliant with Windows Media Audio AAC DecodeAAC-LC .m4a files WAV DecodeRIFF waveform Audio Format (Linear PCM only) FLAC DecodeFLAC files Auxiliary Frequency Response (3 dB)20 Hz - 20 kHz Input Maximum Voltage1 000 mV Input Impedance30 k Audio M

8、aximum Output Power50 W 4 or 50 W 2 + 50 W 1 (Subwoofer = 4 ) Full Bandwidth Power(at less than 1 % THD)22 W 4 Speaker Impedance4 - 8 Preout Level/Load (USB)2 500 mV/10 k Preout Impedance 600 General Operating Voltage (10.5 V - 16 V allowable)14.4 V Maximum Current Consumption10A Operating Temperatu

9、re Range0C to + 40C Installation Size (W H D)182 mm 53 mm 108 mm (7-3/16 2-1/8 4-5/16) Weight0.58 kg (1.3 lbs) RadioFans.CN 收音机爱 好者资料库 (No.MA606)3/20 SPECIFICATION For Europe Subject to change without notice. TUNER FMFrequency Range (KD-X220)FM: 87.5 MHz - 108.0 MHz (50 kHz step) Frequency Range (KD

10、-X125/KD/X120)FM: 87.5 MHz - 108.0 MHz (50 kHz step) FM-LO: 65.0 MHz - 74.0 MHz (30 kHz step) Usable Sensitivity (S/N = 26 dB)0.71 V/75 Quieting Sensitivity(DIN S/N = 46 dB)2.0 V/75 Frequency Response (3 dB)30 Hz - 15 kHz Signal-to-Noise Ratio (MONO)64 dB Stereo Separation (1 kHz)40 dB AMFrequency R

11、angeMW 531 kHz - 1 611 kHz (9 kHz step) LW 153 kHz - 279 kHz (9 kHz step) Usable Sensitivity (S/N = 20 dB)MW:28.2 V SW:50 V USB USB StandardUSB 1.1, USB 2.0 (Full speed) Compatible DevicesMass storage class File SystemFAT12/ 16/ 32 Maximum Supply CurrentDC 5 V 1 A D/A Converter24 Bit Frequency Respo

12、nse (1 dB)20 Hz - 20 kHz Signal-to-Noise Ratio (1 kHz)105 dB Dynamic Range88 dB Channel Separation90 dB MP3 DecodeCompliant with MPEG-1/2 Audio Layer-3 WMA DecodeCompliant with Windows Media Audio AAC DecodeAAC-LC .m4a files WAV DecodeRIFF waveform Audio Format (Linear PCM only) FLAC DecodeFLAC file

13、s Auxiliary Frequency Response (3 dB)20 Hz - 20 kHz Input Maximum Voltage1 000 mV Input Impedance30 k Audio Maximum Output Power50 W 4 or 50 W 2 + 50 W 1 (Subwoofer = 4 ) Full Bandwidth Power(at less than 1 % THD)22 W 4 Speaker Impedance4 - 8 Preout Level/Load (USB)2 500 mV/10 k Preout Impedance 600

14、 General Operating Voltage (10.5 V - 16 V allowable)14.4 V Maximum Current Consumption10A Operating Temperature Range0C to + 40C Installation Size (W H D)182 mm 53 mm 108 mm Weight0.58 kg RadioFans.CN 收音机爱 好者资料库 (No.MA606)4/20 SPECIFICATION For ASIA Subject to change without notice. TUNER FMFrequenc

15、y Range87.5 MHz - 108.0 MHz (50 kHz step) Usable Sensitivity (S/N = 26 dB)8.2 dBf (0.71 V/75 ) Quieting Sensitivity(DIN S/N = 46 dB)17.2 dBf (2.0 V/75 ) Frequency Response (3 dB)30 Hz - 15 kHz Signal-to-Noise Ratio (MONO)64 dB Stereo Separation (1 kHz)40 dB AMFrequency RangeBand 1 (MW): 531 kHz - 1

16、611 kHz (9 kHz step) Band 2 (SW1): 2 940 kHz - 7 735 kHz (5 kHz step) Band 3 (SW2): 9 500 kHz - 10 135 kHz /11 580 kHz - 18 135 kHz (5 kHz step) Channel Space SelectionBand 1: 9 kHz Band 2/3: 5 kHz Usable Sensitivity (S/N = 20 dB)MW: 29 dB (28.2 V) SW: 30 dB (32 V) USB USB StandardUSB 1.1, USB 2.0 (

17、Full speed) Compatible DevicesMass storage class File SystemFAT12/ 16/ 32 Maximum Supply CurrentDC 5 V 1 A D/A Converter24 Bit Frequency Response (1 dB)20 Hz - 20 kHz Signal-to-Noise Ratio (1 kHz)105 dB Dynamic Range88 dB Channel Separation90 dB MP3 DecodeCompliant with MPEG-1/2 Audio Layer-3 WMA De

18、codeCompliant with Windows Media Audio AAC DecodeAAC-LC .m4a files WAV DecodeRIFF waveform Audio Format (Linear PCM only) FLAC DecodeFLAC files Auxiliary Frequency Response (3 dB)20 Hz - 20 kHz Input Maximum Voltage1 000 mV Input Impedance30 k Audio Maximum Output Power50 W 4 or 50 W 2 + 50 W 1 (Sub

19、woofer = 4 ) Full Bandwidth Power(at less than 1 % THD)22 W 4 Speaker Impedance4 - 8 Preout Level/Load (USB)2 500 mV/10 k Preout Impedance 600 General Operating Voltage (10.5 V - 16 V allowable)14.4 V Maximum Current Consumption10A Operating Temperature Range0C to + 40C Installation Size (W H D)182

20、mm 53 mm 108 mm Weight0.58 kg (No.MA606)5/20 SECTION 1 PRECAUTION 1.1Safety Precautions (1) This design of this product contains special hardware and many circuits and components specially for safety purpos- es. For continued protection, no changes should be made to the original design unless author

21、ized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be per- formed by qualified personnel only. (2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not

22、be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts in the products have special safety-related characteristic

23、s. These characteris- tics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by us- ing replacement components rated for higher voltage, watt- age, etc. Replacement parts which have these special safety characteristics are identified in the

24、Parts List of Ser- vice Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety charac- teristics as the recommended replacement parts sh

25、own in the Parts List of Service Manual may create shock, fire, or other hazards. (4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of elec

26、tric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassem- bling. 1.2Warning (1) This equipment has been designed and manufactured to meet international safety standar

27、ds. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is

28、 provided, check setting for local voltage. 1.3Caution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of pre- forming repair of this system. 1.4Critical parts for safety In regard with component parts appearing on the sil

29、k-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the m

30、anufacturer. (This regulation dose not Except the J and C version) 1.5Remote control The Lithium battery is in danger of explosion if replaced incor- rectly. Replace it only with the same or equivalent type. 1.6Preventing static electricity Electrostatic discharge (ESD), which occurs when static ele

31、ctric- ity stored in the body, fabric, etc. is discharged, can destroy the semi conductors. Take care to prevent this when performing re- pairs. 1.6.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the semi conduc- tors. Be careful to use proper gro

32、unding in the area where repairs are being performed. (1) Ground the workbench Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before plac- ing the unit on it. (2) Ground yourself Use an anti-static wrist strap to release any static electricit

33、y built up in your body. 1M Conductive material (conductive sheet) or iron plate (caption) Anti-static wrist strap (No.MA606)6/20 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS 2.1How to repair a fuse pattern 2.1.1Purpose of fuse pattern In order to prevent serious damage on the circuit, fuse pattern is pr

34、epared on the GND line of RCA Terminal. This damage may take due to improper part replacement with a external equipment via RCA line. 2.1.2Repair Procedure (1) Check the shorted circuit at the meltdown point. Need to clean up if the shorted circuit or carbonization happen at the fuse pattern. (2) Ad

35、d following part on the fuse pattern. (3) Check output level. 2.1.3After finished repair Due to improper part replacement, this meltdown occurs. Thus please notice following information when the unit is returned to your customer. Things to be checked before installing the unit. (1) Check the GND lin

36、e of external amplifier or other equipment which must connect properly. (2) Check whether the GND line is not short-circuited with the battery terminal. (do not short-circuit these lines) 2.2MICROCOMPUTERS TERMINAL DESCRIPTION IC701 (R5S726A0D216FP) on MAIN PWB ASSY Part NumberPart NameSPEC F53-0513

37、-08PATTERN FUSE4A Pin No.Pin NameI/OApplication Processing/Operation/ Description 1LCD_INHODisplay On/Off ControlL: Display OFF/ H: Display ON 2DAB_COM_ONOEnable DAB micon (For DAB model)H: ON/L: OFF 2NCONo Use (for non DAB model) 3PVcc-Power supply for I/O circuits 4DZFIZero Input DetectL: Mute OFF

38、/H: Mute ON 5Vss-GND 6PANEL_PONOSupply Control to PanelL: ON/H: OFF 7DC_ERR2IDetect DC Clip (for ST Power Amp IC)L: DC Error ON/ H: DC Error OFF 8PWIC_MUTEOMuting Output for Power Amp ICL: Mute ON/H: Mute OFF 9LCD_CEOLCD Driver IC Chip Enable Output (for LCD Model) 10Vss-GND 11LCD_CLKOLCD CLK Output

39、 12Vcc-Power supply 13RGB_CLKOI2C Clock Output for RGB Driver (For RGB Model) Meltdown point (No.MA606)7/20 13PCB_TEST_MODE _RX IPCB Test Mode RX 14LCD_DATA_SYSOLCD DATA Output (for LCD Model) 14LCD/ RGB_DATA_SYS OLCD and RGB DATA Output (for RGB Model) 14PCB_TEST_MODE _TX OPCB Test Mode TX 15USB_PO

40、NOEnable Output for High Side SwitchL: HisideSW OFF/ H: HisideSW ON 16PVcc-Power supply for I/O circuits 17BT_DATA_BTIBT Data Input (For BT model only) 17NCONo Use (for non BT model) 18Vss-GND 19BT_DATA_SYSOBT Data Output (For BT model only) 19NCONo Use (for non BT model) 20Vcc-Power supply 21PWIC_S

41、TBYOOutput to Power On Power Amp ICL: Standby/H: Play 22SXM_DATA_SXMISXM Data Input (For SXM model only) 22NCONo Use (for non SXM model) 23SXM_DATA_SYSOSXM Data Output (For SXM model only) 23NCONo Use (for non SXM model) 24DEBUG_1AOFor Debug 24DAB_COM_CLKOClock to DAB (for DAB model only) 24HD_SPICL

42、KOClock to HD Decoder (for HD model only) 25DEBUG_1BOFor Debug 25DAB_REQ_SYSOCommand Request from main micon to DAB micon (for DAB model) 25HD_REQ_SYSOCommand Request from SYS-com to HD (for HD model) 26DEBUG_1COFor Debug 26DAB_DATA_SYSODAB Data Output (for DAB model only) 26HD_DATA_SYSOHD Data Outp

43、ut (for DAB model only) 27DAB_DATA_DABIDAB Data Input (for DAB model only) 27HD_DATA_HDIHD Data Input (for HD model only) 27NCONo Use (for non DAB / HD model) 28PVcc-Power supply for I/O circuits 29FREQ_SELOFrequency SelectPulse: Power On/ L: Power Off 30Vss-GND 31ENC2IVolume Encoder Pulse Input 2 3

44、2ENC1IVolume Encoder Pulse Input 1 33REMOIRemocon InputL (Pulse): Remote control data/H: Standby 34LCD_DATA_LCDILCD DATA Intput (for LCD Model) 35MRC_DATA_MRCIMarine REMO Data Input UART 57.6kHz (For MARINE model) 35DEBUG_2AOFor Debug 36PVcc-Power supply for I/O circuits 37NCOSystem Clock Output to

45、External Devices (for LCD Model) No Use Pin No.Pin NameI/OApplication Processing/Operation/ Description (No.MA606)8/20 38Vss-GND 39RESETIReset Input 40Vss-GND 41PLLVcc-Power supply for PLL 42PAN_DETIPanel Detection inputL: Panel Attached/ H: Panel Detached 43Vcc-Power supply 44EXTALIHigh Speed Clock

46、 12MHz 45XTALOHigh Speed Clock 12MHz 46Vss-GND 47Vss-GND 48PVcc-Power supply for I/O circuits 49D-0I/OUSB Data- 0 50D+0I/OUSB Data+ 0 51ASEMDIASE Mode Select Pin 52NCINo Use 53BT_MUTEIBT MuteL: Mute OFF/H: Mute ON 53NCINo Use (for non BT model) 54STAGE2IModel Selecting Input 2 54STEERING_REMO 2 IOE

47、Remote In 2 (for DOP models) 55STAGE1IModel Selecting Input 1 55STEERING_REMO 1 IOE Remote In 1 (for DOP models) 56TEL_MUTEITel Mute Detection Input (for JVC Model) 56LINE_MUTEILine Mute Detection Input (For KWD Model) 56No UseINo Use (for non support Tel mute model) 57DC_ERR1IDetect DC Offset Error

48、 from EVOL ICL: DC Error ON/ H: DC Error OFF 58Avss-GND 59Avcc-Power Supply 60Avref-Reference Power Supply 61TRSTIDebugging Interface. Reset Input. 62ASEBRKAK/ASE- BRK I/OEmulator Break Mode Acknoledge/Break Input 63TDOODebugging Interface. Serial Output for Instructions and Data 64TDIIDebugging Int

49、erface. Serial Input for Instructions and Data 65TMSIDebugging Interface. Test Mode Select Signal Input. 66TCKIDebugging Interface. Test Clock Input. 67AUDIO_X2OAudio Clock 16.9MHz (for External DAC) 68AUDIO_X1IAudio Clock 16.9MHz (for External DAC) 69PVcc-Power supply for I/O circuits 70SPBCLKOFLASH SPI Multi I/O Bus Clock output 71Vss-GND 72SPBSSLOFLASH SPI Multi I/O Bus Slave Select Output 73SPBIO0I/OFLASH SPI Multi I/O Bus I/O Data 0 74SPBIO1I/OFLASH SPI Multi I/O Bus I/O Data 1 Pin No.Pin NameI/OApplication Processing/Oper