Pioneer-XCHM70-cs-sm 电路图 维修手册.pdf

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1、ORDER NO. PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra

2、Road, #04-01, Singapore 159936 PIONEER CORPORATION2011 2011 Printed in Japan X-HM70-K RRV4217 NETWORK CD RECEIVER SYSTEM X-HM70-K X-HM70-S XC-HM70-K XC-HM70-S THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower RequirementSerial No.Remarks X-HM70-KSYXCN8AC 220 V to 240 V

3、it is not meant for the casual do-it- yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability

4、 of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. IMPORTANT THIS PIONEER APPARATUS CONTAINS LASER OF CLASS 1. SERVICING OPERATION O

5、F THE APPARATUS SHOULD BE DONE BY A SPECIALLY INSTRUCTED PERSON. For CD Wave length (typ) : 790 nm Operation output : 3 mW CW, Class 1 Maximum output : Class 1 (Under fault condition) Laser Pickup specifications and Laser characteristics WARNING The Laser component is capable of emitting radiation e

6、xceeding the limit for CLASS 1. A specially instructed person should do servicing operation of the apparatus. LABEL CHECK RadioFans.CN 收音机爱 好者资料库 3X-HM70-K 5678 5678 A B C D E F CONTENTS SAFETY INFORMATION.2 1. SERVICE PRECAUTIONS.4 1.1 NOTES ON SOLDERING.4 1.2 WHEN REPLACING MECHA.4 2. SPECIFICATIO

7、NS.5 3. BASIC ITEMS FOR SERVICE .6 3.1 CHECK POINTS AFTER SERVICING .6 3.2 JIGS LIST.6 3.3 PCB LOCATIONS.7 4. BLOCK DIAGRAM .8 4.1 OVERALL CONNECTION DIAGRAM.8 4.2 OVERALL BLOCK DIAGRAM.10 4.3 POWER BLOCK DIAGRAM .12 5. DIAGNOSIS .14 5.1 TROUBLESHOOTING.14 5.2 PROTECTION CIRCUIT.18 6. SERVICE MODE.2

8、1 6.1 TEST MODE.21 7. DISASSEMBLY .23 8. EACH SETTING AND ADJUSTMENT.31 8.1 UPDATING OF THE MAIN MICROCOMPUTER FIRMWARE.31 8.2 UPDATING OF THE CD I/F, CD DSP MICROCOMPUTERS FIRMWARE.33 8.3 UPDATING OF THE UBICOM FIRMWARE.33 9. EXPLODED VIEWS AND PARTS LIST.34 9.1 PACKING SECTION.34 9.2 EXTERIOR SECT

9、ION .36 9.3 SPEAKER SECTION (X-HM70 ONLY).39 10. SCHEMATIC DIAGRAM.40 10.1 CD PCB ASSY (1/2) .40 10.2 CD PCB ASSY (2/2) .42 10.3 TUNER PCB ASSY .44 10.4 MAIN PCB ASSY (1/3) .46 10.5 MAIN PCB ASSY (2/3) .48 10.6 MAIN PCB ASSY (3/3) .50 10.7 UBICOM PCB ASSY (1/2).52 10.8 UBICOM PCB ASSY (2/2).54 10.9

10、F.AUX, F.USB and FRONT PCB ASSYS.56 10.10 DOCK, CNT1, 5KEY and CNT2 ASSYS .58 10.11 POWER PCB ASSY .60 10.12 WAVEFORMS.62 11. PCB CONNECTION DIAGRAM.63 11.1 TUNER PCB ASSY .63 11.2 CD PCB ASSY.64 11.3 MAIN PCB ASSY.68 11.4 UBICOM PCB ASSY .70 11.5 F.AUX, F.USB and FRONT PCB ASSYS.72 11.6 DOCK, CNT1,

11、 5KEY and CNT2 ASSYS .74 11.7 POWER PCB ASSY .76 12. PCB PARTS LIST.78 RadioFans.CN 收音机爱 好者资料库 4X-HM70-K 1234 A B C D E F 1234 1. SERVICE PRECAUTIONS 1.1 NOTES ON SOLDERING 1.2 WHEN REPLACING MECHA For environmental protection, lead-free solder is used on the printed circuit boards mounted in this u

12、nit. Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs accompanied by reworking of soldering. Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C. Therefore, for le

13、ad-free soldering, the tip temperature of a soldering iron must be set to around 373 C in general, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron. Do NOT use a soldering iron whose tip temperature c

14、annot be controlled. Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden). The following lead-free solders are available as service parts: Parts numbers of lead-free solder: GYP1006 1.0 in

15、dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia. It is necessary to remove the soldering on the short circuit point after connecting the pickup flexible cable. Short circuit point 5X-HM70-K 5678 5678 A B C D E F 2. SPECIFICATIONS As part of our policy of continuous improvement, PIONEER reserves the righ

16、t to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units. *The specifications are applicable when the power suppl

17、y is 230 V. Amplifier section RMS Power Output.50 W + 50 W (1 kHz, 10 % T.H.D., 4 ohms) Guaranteed speaker impedance.4 ohms to 16 ohms Headphones.recommended: 32 ohms Tuner section Frequency Range (FM) . 87.5 MHz to 108 MHz Antenna Input (FM).75 ohms unbalanced Frequency Range (AM) .531 kHz to 1602

18、kHz Antenna (AM) .Loop antenna Video section Signal level (Composite).1 Vp-p (75 ohms) Network section LAN terminal.Ethernet jack 10BASE-T/100BASE-TX Other connectors Power supply Front USB connector.5 V, 2.1 A iPod connector.5 V, 1.0 A Rear DC output connector (for Wireless LAN).5 V, 600 mA Miscell

19、aneous Power source.AC 220 V to 240 V, 50 Hz Power consumption Power on.80 W Power stand-by. 0.5 W or less Dimensions Width . 215 mm Height. 111 mm Depth. 353 mm Weight. 4.7 kg Speaker (X-HM70 only) Type 2-way type speaker system 2.5 cm Dome-Tweeter 12 cm Woofer Maximum input power .50 W Impedance.

20、4 ohms Dimensions Width . 148 mm Height. 263.5 mm Depth. 208 mm Weight.2.7 kg/each Accessories AM loop aerial (E601019000010-IL) Remote control (AXD7639) (8300763900010-IL) Speaker x2 (X-HM70 only) “AAA” size battery x 2 FM aerial (E605010140010-IL) Video cable (L063202010050-IL) Speaker cables x2 (

21、X-HM70 only) (8952SHM700042-IL) Warranty card Operating instructions (5707000005941-IL) o 6X-HM70-K 1234 A B C D E F 1234 3. BASIC ITEMS FOR SERVICE 3.1 CHECK POINTS AFTER SERVICING 3.2 JIGS LIST Item to be checked regarding audio Distortion Noise Volume too low Volume too high Volume fluctuating So

22、und interrupted See the table below for the items to be checked regarding audio. No.Check pointsProcedure 1Confirm whether the customer complain has been solved.The customer complain must not be reappeared. Audio and operations must be normal. 6Check the tuner operations.Audio and operations (station search etc.) must be normal. 7Check the Line input playback.Audio and operations must be normal.