Yamaha-RXV757-avr-sm 维修电路原理图.pdf
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1、SERVICE MANUALThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are alreadyknown and understood by the users, and have therefore not b
2、een restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personalinjury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,we advise all YAMAHA product owners that any service r
3、equired should be performed by an authorized YAMAHARetailer or the appointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification orrecognition of any applicable technical capabilities, or establish a prin
4、ciple-agent relationship of any form.The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and servicedepartments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable andspecifi
5、cations are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact thedistributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding your
6、self to the ground buss in the unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.IMPORTANT NOTICE100939SERVICE MANUALRX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860AV RECEIVER/AV
7、AMPLIFIERDISPLAY DATA . . . . . . . . . . . . . . . . . . . . . . . . . . 5152IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5361PIN CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . 62BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . 6364PRINTED CIRCUIT BOARD
8、 . . . . . . . . . . . . . . . . 6584SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . 8595PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97133REMOTE CONTROL RAV272, RAV273 . . . . 134135REMOTE CONTROL RAV252, RAV253 . . . . 136137I CONTENTSTO SERVICE PERSONNEL . . . . . .
9、. . . . . . . . . . . . 23FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . 35REMOTE CONTROL PANELS . . . . . . . . . . . . . . . . . . 6REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . 712SPECIFICATIONS / 参考仕様 . . . . . . . . . . . . . . . . .1317INTERNAL VIEW . .
10、. . . . . . . . . . . . . . . . . . . . . . . . . . 18DISASSEMBLY PROCEDURES / 分解手順 . . . . .1927SELF DIAGNOSIS FUNCTION (DIAG) /自己診断機能() . . . . . . . . . . . . . . . . . . . . 2849AMP ADJUSTMENT / 部調整 . . . . . . . . . . . . . . .50RX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860 05.03RadioFans.CN 收音
11、机爱 好者资料库28RX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860RX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860ISELF DIAGNOSIS FUNCTION (DIAG) / 自己診断機能 ()本機、 検査、 測定、 不良個所発見目的自己診断機能 () 。20種類、 。This product has a built-in self diagnosis function (DIAG) tofacilitate inspection, measurement and determination of af
12、aulty item, if any. There are 20 DIAG menu items, each hav-ing sub-menu items.No. DIAG menuSub-menu1BYPASS1.ANALOG BYPASS2. DSP BYPASS2RAM THROUGH1. RAM MARGIN2. RAM FULL BIT3PRO LOGIC1. PRO LOGIC4SPEAKERS SET1. FRNT : SML 0dB2. CENTER : NONE3. LFE/B : FRNT4. Pres Mix : 5ch5. Front GAIN 16. Front GA
13、IN 27. Zone 2 Amp ON5XCH INPUT1. XCH INPUT_62. XCH INPUT_86MIC CHECK1. MIC CHK7VFD CHECK1. VFD CHECK (Initial display / 初期表示)2. VFD OFF/OSD OFF3. VFD ALL/OSD 128 character pattern4. VFD DIMMER/OSD OFF5. VFD PATTERN/OSD OFF8MANUAL TEST1. TEST ALL2. TEST FRNT L3. TEST CENTER4. TEST FRNT R5. TEST SURR
14、R6. TEST SB R7. TEST SB L8. TEST SURR L9. TEST PRES L10. TEST PRES R11. TEST LFE9FACTORY PRESET1. PRESET INHI (memory initialization inhibited / 初期化禁止)2. PRESET RSRV (memory initialized / 初期化)10AD DATA CHECK1. DC/PS (protection)2. THM3. IMP SW/POWER LIMIT4. PANEL KEY11V CONV STATUS1. LOW BYTE2. HIGH
15、 BYTE12XM STATUS1. XMS1 (No applied to these models / 適用)2. XMS2 (No applied to these models / 適用)13IF STATUS1. DST :2. DMD :3. DIF :4. PC :5. CS1 :6. CS2 :7. DEI :RadioFans.CN 收音机爱 好者资料库29RX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860RX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860No. DIAG menuSub-menu
16、8. BS1 :9. BS2 :10. BS3 :11. BS4 :12. BS5 :13. BS6 :14. BS7 :15. BS8 :16. MTT :17. DGI :14DSP BUS CHECK1. TI BUS :15SWFR CUT OFF1. LFE LPF2. LFE HPF16PROTECTION SETTING1. PS_Lo :(Not applied to these models /2. PS_Hi : 適用)3. DC_Lo :4. DC_Hi :5. TEMP :6. PL_8_M_L7. PL_8_M_H8. PL_8_N_L9. PL_8_N_H10. P
17、L_6_M_L11. PL_6_M_H12. PL_6_N_L13. PL_6_N_H17PROTECTION HISTORY1. history 12. history 23. history 34. history 418SOFT SWITCH1. SW MODE2. MODEL SETTING3. DESTINATION4. TUNER DESTINATION5. TUNER TYPE6. VIDEO FORMAT7. ZONE28. AAC9. TUNER10. Z2Amp11. OSD12. YPAO19SOFTWARE VERSION1. uCOM Ver. :2. uCOM SU
18、M :3. OPE/DSP/XM4. PORT5. DSP Ver.6. DSP SUM7. EEPROM SUM20DSP SOFTWARE REWRITE1. TI BOOT30RX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860RX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860G Starting DIAGPress the “STANDBY/ON” key of the main unit while simul-taneously pressing the “INPUT MODE” key and the
19、“MULTICH INPUT” key to activate the DIAG function.起動本体 “INPUT MODE” “MULTI CH INPUT” 同時押、 “STANDBY/ON” 押起動。Turn on the power while pressing these keys. 同時押、 。解除起動動作、故障箇所診断支障場合、次方法解除状態入。(過電流検出以外動作解除)上図同時押 “STANDBY/ON” 押。、上図3 秒以上押続。本体FL “SLEEP”点滅、解除状態知。注意!解除状態、危険状態作動、動作、機器破壊。使用場合十分注意。G Starting DIAG i
20、n the protection cancelmodeIf the protection function works and causing hindranceto trouble diagnosis, cancel the protection function asdescribed below and it will be possible to enter theDIAG mode. (The protection functions other than theexcess current detect function will be disabled.)Press the “S
21、TANDBY/ON” key while simultaneously press-ing those two keys indicated in the figure above. At this time,keep pressing those two keys for 3 seconds or longer.In this mode, the “SLEEP” segment of the FL display of themain unit flashes to indicate that the mode is DIAG modewith the protection function
22、s disabled.CAUTION!Using this product with the protection function disabledmay cause damage to itself. Use special care for this pointwhen using this mode.G Canceling DIAG解除1解除前、 No. 9PRESET (初期化禁止/ 初期化)設定。 保持場合、必 PRESETINHIBITED(初期化禁止)選択。2本体“STANDBY/ON ”押、。1Before canceling DIAG, execute setting fo
23、r PRESET ofDIAG menu No.9 (Memory initialization inhibited orMemory initialized).*In order to keep the user memory stored, be sure to se-lect PRESET INHIBITED (Memory initialization inhibited).Protection history will remain in memory.2Turn off the power by pressing the “STANDBY/ON” key ofthe main un
24、it.31RX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860RX-V757/DSP-AX757/DSP-AX757SERX-V657/HTR-5860When there is a history of protection function:The FL display appears as shown below depending on thetype of the protection function.履歴場合:時原因、働示。The protection function worked due to exces-sive current thr
25、ough the amplifier. Causescould be a short at the speaker terminal or adefect in the amplifier. The protection func-tion activates immediately to turn off thepower, with no history display at turn-on, ifthe amplifier is defective.種類下記表示現。起動時表示接続場合、画面図表示。本体FL、 (履歴) 表示、数秒後表示 (1. ANALOG BYPASS) 。G Disp
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