lexicon rv8电路图.pdf

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1、 RV-8 Receiver Service Manual Harman Specialty Group 3 Oak Park, Bedford, MA, 01730-1413 USA Customer Service: Telephone: 781-280-0300 | Service Fax: 781-280-0499 | Part No. 070-17537 | Rev 0 Downloaded from www.M manuals search engine RadioFans.CN 收音机爱 好者资料库 IMPORTANT SAFETY INSTRUCTIONS 1. Read an

2、d keep these instructions. 2. Heed all warnings. 3. Follow all operation instructions. 4. Do not use this apparatus near water. 5. Clean only with a dry cloth. 6. Do not block any ventilation openings. 7. Install in accordance with the manufacturers instructions. 8. Do not install near any heat sour

3、ces such as radiators, heat registers, stoves, or another apparatus (including amplifiers) that produces heat. 9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third

4、grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacle

5、s, and the point where they exit from the apparatus. 11. Only use attachments/accessories specified by the manufacturer. 12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/appar

6、atus combination to avoid injury from tip-over. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as when a power-supply cord or

7、 plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. 15. Refer to the operating instructions for power requirements. Be advised that different operating voltages may re

8、quire the use of different line cord and/or attachment plug. 16. Do not install the unit in an unventilated rack, or directly above heat-producing equipment such as power amplifiers. Observe the maximum ambient operating temperature listed in the product specification. 17. Never attach audio power a

9、mplifier outputs directly to any of the units connectors. 18. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. 19. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC Rules. These l

10、imits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and radiates radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio or televisio

11、n reception, which can be determined by turning the equipment off and on. The user is encouraged to try to correct the interference by one or more of the following measures: Re-orient or relocate the receiving antenna. Increase the separation between the equipment and the receiver. Connect the equip

12、ment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/ television technician for help. Downloaded from www.M manuals search engine RadioFans.CN 收音机爱 好者资料库 SAFETY SUMMARY The following general safety precautions must be obs

13、erved during all phases of operation, service, and repair of this unit. Failure to comply with these precautions or with specific warnings elsewhere in these instructions violates manufacturer safety standards and intended use of this unit. Harman Specialty Group assumes no liability for failure to

14、comply with these requirements. GROUND THE INSTRUMENT To minimize shock hazard, the unit chassis and cabinet must be connected to an electrical ground. The unit is equipped with a three-wire grounding type plug. It will only fit into a grounding type power outlet. This is a safety feature. If you ar

15、e unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the grounding type plug. DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE Do not operate the unit in the presence of flammable gasses or fumes. Operation of any electri

16、cal instrument in such an environment constitutes a definite safety hazard. KEEP AWAY FROM LIVE CIRCUITS Operating personnel must not remove unit covers. Qualified maintenance personnel must make component replacements and internal adjustments. Do not replace components with the power cord connected

17、. Under certain conditions, dangerous voltages may exist even with the power cord removed. To avoid personal injuries, always disconnect power and discharge circuits before touching them. DO NOT SERVICE OR ADJUST ALONE Do not attempt internal service or adjustment unless another person capable of re

18、ndering first-aid resuscitation is present. DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification to the unit. DANGEROUS PROCEDURE WARNINGS Warnings such as the example shown belo

19、w precede potentially dangerous procedures throughout this document. Instructions contained in warnings must be followed. WARNING Dangerous voltages capable of causing death are present in this unit. Use extreme caution when handling, testing, or adjusting. Downloaded from www.M manuals search engin

20、e RadioFans.CN 收音机爱 好者资料库 CAUTION ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS The following practices minimize possible damage to circuit boards resulting from electrostatic discharge or improper insertion. Keep circuit boards in their original packaging until ready for use. Avoid having plastic, viny

21、l, or Styrofoam in the work area. Wear an anti-static wrist strap. Discharge personal static before handling circuit boards. Remove and insert circuit boards with care. When removing circuit boards, handle only by non-conductive surfaces. Never touch open-edge connectors except at a static-free work

22、station. Minimize handling of circuit boards. Handle each circuit board by its edges. Do not slide circuit boards over any surface. Insert circuit boards with the proper orientation. Use static-shielded containers for storing and transporting circuit boards. 3 Oak Park Bedford, MA 01730-1413 USA Tel

23、ephone: 781-280-0300 Fax: 781-280-0490 Customer Service Telephone: 781-280-0300 Sales Fax: 781-280-0495 Service Fax: 781-280-0499 WARNING These service instructions are only intended for use by qualified personnel. Do not perform any servicing other than that contained in these instructions unless q

24、ualified to do so. Refer to the Safety Summary on the previous page prior to performing any service. “Lexicon” and the Lexicon logo are registered trademarks of Harman International Industries, Incorporated. U.S. patent numbers and other worldwide patents issued and pending. Product Shipments 16 Pro

25、gress Road Billerica, MA 01821-5730 USA Part No. 070-17537 | Rev 0 | 07/05 2005 Harman International Industries, Inc. All rights reserved. This document should not be construed as a commitment on the part of Harman Specialty Group. The information it contains is subject to change without notice. Har

26、man Specialty Group assumes no responsibility for errors that may appear within this document. Downloaded from www.M manuals search engine TABLE OF CONTENTS CHAPTER 1 REFERENCE DOCUMENT Part number 740-16017: LABEL,220-240V,50-60Hz). Item Description 120VAC 220-240VAC 1 AC Fuse on Power Supply PCB 4

27、40-16213 15A 440-16212 6.3A 2 Transformer primary wire harness Plug to 100V/120V connector J15 Plug to 220V/230V/240V connector J14 Measuring Power Supply Voltages In this procedure, testing of the supplies will be performed with the top cover removed and the unit turned on. Due to risk of shock, do

28、 not remove the cover with the unit powered on. WARNING The Amp channels on both sides of the RV-8 heat sinks are Live Voltage. Great care must be taken to avoid touching these areas when testing for voltages inside the unit. 1. Disconnect power. 2. Wait ten minutes. 3. Remove the top cover of the R

29、V-8. 4. With the RV-8 facing you, locate the switching power supply mounted vertically on the left side of the chassis. 5. Power on the unit. 4-5 Downloaded from www.M manuals search engine RV-8 Service Manual 6. Locate the wire connection at the top of the switching supply. 7. With the DMM, measure

30、 the voltages on the connector using the black probe to chassis. 8. Yellow is +15 volt rail measure for a voltage range of +14.75V to +15.250V. 9. Blue is 15 volt rail measure for a voltage range of +14.75V to +15.250V. 10. Red is +5 volt rail measure for a voltage range of +4.75V to +5.25V. 11. Loc

31、ate the two black six-wire connectors that run from the main power supply board in the middle of the RV-8 to the two amp channels left and right of the chassis. 12. With the black lead of the DMM connected to the chassis, carefully probe the inside of each black wire with the red probe. (Some pins c

32、ontain +65V. Some pins contain -65V). AM/FM Tuner so one end of the serial cable must be a D9 male. The other connector on the cable depends upon the RS232 connector used on the computer. The computer may have a D9 or a D25 male connector. Typically computers have a D9 for COM 1 and a D25 for COM 2.

33、 However, some newer computers use a D9 for both COM 1 and COM 2. The COM port used on the computer does not matter, however you must ensure that whatever serial communications program is being used has the correct computer COM port selected. Serial Debug Program The serial debug program controls th

34、e communication from an RV-8 to a computer. This program allows a user to view activity of the unit and to control and configure the unit for testing. The debug program is used extensively to perform audio and video testing of a unit in the audio and video ATE programs. Error Codes The error codes f

35、or the diagnostic tests that report additional failure information consist of six parts as described below: “E# tXX aYYYYYY wZZZZZZ rQQQQQQ” E#: Failure Number The E stands for error and the hexadecimal number after the E indicates test number from the list below. tXX: Error Codes List NO_ERROR 0 x0

36、 ADDR_FAILURE 0 x1 DATA_FAILURE 0 x2 TIMEOUT_FAILURE 0 x3 COUNTER_FAILURE 0 x4 NON_VOL_DATA_FAILURE 0 x5 OPCODE_FAILURE 0 x6 AVRX_FPGA_ID_NO_MATCH 0 x7 DAR_FPGA_ID_NO_MATCH 0 x8 AUDIO_FPGA_ID_NO_MATCH 0 x9 ANALOG_FPGA_ID_NO_MATCH 0 xA VFD_TIME_OUT 0 xB 5-3 Downloaded from www.M manuals search engine

37、 RV-8 Service Manual VFD_RAM_ERROR 0 xC TEST_INCOMPLETE 0 xD RS232_WRAP_FAILURE 0 xE SRAM_PREBURNIN_FAILURE 0 x13 SRAM_BURN_IN_FAILURE 0 x14 EPROM_CHKSUM_FROM_FLASH 0 x15 DRAM_FAILURE 0 x16 FIFO_ERROR_OVERRUN 0 x17 PIC_SN_INVALID 0 x18 FLASH_BURN_FAIL 0 x19 FLASH_BURN_NO_ROOM_LEFT 0 x1A FLASH_BURN_N

38、OT_FLASH_PART 0 x1B SHARC_TIMEOUT_REBOOT 0 x1C DSP_FPGA_ID_NO_MATCH 0 x1D DEC_FPGA_ID_NO_MATCH 0 x1E DIAG_TEST_NOT_EXIST 0 x20 THERMOSTAT_FAILURE 0 x21 EXPANSION_BRD_FAILURE 0 x22 ERROR_ID_BAD_VALUE 0 x40 ERROR_PARAM_SEMA_CREATE 0 x60 CS49400_NO_BOOT_START_MESSAGE 0 x100 CS49400_NO_BOOT_SUCCESS_MESS

39、AGE 0 x101 CS49400_INIT_ERROR 0 x102 CS49400_ERR_WRITE_TIMEOUT 0 x103 CS49400_ERR_READ_TIMEOUT 0 x104 CS49400_INTREQ_TIMEOUT 0 x105 CS49400_AUTO_BOOT_FAILURE 0 x106 CS49400_ENQ_MSG_FAILURE 0 x107 CS49400_DEQ_MSG_FAILURE 0 x108 CS49400_FINTREQ_TIMEOUT 0 x109 CS49400_NO_APP_START_MESSAGE 0 x110 CS4940

40、0_AB_SPI_TIMEOUT 0 x111 CS49400_C_SPI_TIMEOUT 0 x112 CS49400_HOST_BOOT_FAILURE 0 x113 CS49400_FLASH_WRITE_TIMEOUT 0 x114 CS49400_BAD_FLASH_DATA 0 x115 CS49400_BAD_RESP_OPCODE 0 x116 CS49400_FLASH_READ_TIMEOUT 0 x117 CS49400_MASTER_BOOT_FAILURE 0 x118 CS49400_BAD_FLASH_VERSION 0 x119 CS49400_ERASED_F

41、LASH 0 x11A 5-4 Downloaded from www.M manuals search engine Lexicon CS49400_CHECKSUM_FAIL 0 x11B CS8420_INIT_ERROR 0 x200 CS8420_ISC_WR_TIMEOUT 0 x201 CS8420_ISC_RD_TIMEOUT 0 x202 CS8420_WRONG_VERSION 0 x203 CS8420_WRONG_ID 0 x204 These codes are used to interpret the diagnostic results from the Ext

42、ended Diagnostic Repair Menu. The Error code is 16-bits with the most significant byte always being 0 x03. The least significant byte is broken into bits as shown below: (MSBit) B7 B6 B5 B4 B3 B2 B1 B0 (LSBit) B7 - not used. Should always be 0. B6 - GPIO LED failure, 1 indicates that neither LED lit

43、 up from the test. B5 - Read Back Register Fail, 1 indicates the Read back register failed. B4 - Test Fail, 1 indicates the test failed, 0 indicates success. B3 - SHARC Test Completed. 1 indicates that the SHARC was able to finish executing the test. B2 - READ Time out, 1 means that Hitachi could no

44、t read back from the SHARC. 1 indicates time out. B1 - WRITE Time out, 1 is means there was a time out. B0 - SHARC processor id 0 is for Processor A and 1 for Processor B. Bits B2, B1 and B0 are read together. If a time out occurs then B2 or B1 will indicate what operation caused the fault, B0 will

45、indicate which processor failed, Processor A or B. Bit B3 is used to indicate whether the SHARC was able to run the code. If this bit is zero, the code was not able to run; a 1 indicates the SHARC was able to run. Bit B4 indicates whether the test passed or failed. This bit is only valid if B3 is a

46、1. Bit B5 indicates that the read back register failed. There is a fault in the read back register circuitry if this bit is a 1. Bit B6 indicates whether the circuitry around the SHARC LEDS failed. A 1 indicates a failure. When the SHARC passes these tests, it will return a value of 0 x0300. aYYYYYY

47、: Failing address location The address (in hexadecimal) where the failure occurred. wZZ: Value Written The target value (in hexadecimal) that was written to the address where the failure occurred. 5-5 Downloaded from www.M manuals search engine RV-8 Service Manual rQQ: Value Read The actual value (i

48、n hexadecimal) that was read from the address where the failure occurred. POWER ON DIAGNOSTICS As described earlier there are two power-on modes in the RV-8. You can power on via the rear panel power switch or by bringing the RV-8 out of standby mode. Power-on diagnostics are executed every time the rear panel power switch is switched on. Diagnostics are not run when the unit is brought out of standby. The power-on diagnostics take approximately fifty seconds to complete. The power-o