Yamaha-RXE-400-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL I CONTENTS TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . . .2 FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . .23 REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . .45 I

2、NTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . .67 TEST MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89 AMP ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . .9 IC DATA . . . . . . . . . . . .

3、. . . . . . . . . . . . . . . . . . . .1012 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . .13 PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . .1417 PIN CONNECTION DIAGRAM . . . . . . . . . . . . . . . . .18 SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . .1920 DISPLAY D

4、ATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2128 REMOTE CONTROL TRANSMITTER . . . . . . . . . . . .29 SYSTEM CONTROL . . . . . . . . . . . . . . . . . . . . . .3038 NX-E400 . . . . . . . . . . . . . . . . . . . .

5、 . . . . . . . . . . . . . . .39 PARTS LIST FOR CARBON RESISTORS . . . . . . . .40 This 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,

6、are already known and understood by the users, and have therefore not been restated. WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components, and failure of the product to perform as specified.

7、 For these reasons, we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA Retailer or the appointed service representative. IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification

8、 or recognition of any applicable technical capabilities, or establish a principle-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 service departments of YAMAHA are continually striving

9、to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components

10、. Discharge any static electricity your body may have accumulated by grounding yourself 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 N

11、OTICE 100809 SERVICE MANUAL RX-E400/NX-E400 MINI COMPONENT SYSTEM CRX-E400 The CRX-E400 is composed of the RX-E400 and the CDX-E400. This service manual is for the RX-E400 (including NX-E400). For the CDX-E400 service manual, please refer to the following publication numbers : CDX-E400100808 RX-E400

12、 RX-E400 2 RX-E400 I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked Z and must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only) When service has been c

13、ompleted, it is imperative to verify that all exposed conductive surfaces are properly insulated from supply circuits. GMeter impedance should be equivalent to 1500 ohm shunted by 0.15F. AC LEAKAGE TESTER OR EQUIVALENT EQUIPMENT UNDER TEST INSULATING TABLE WALL OUTLET WARNING: CHEMICAL CONTENT NOTIC

14、E! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth

15、defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come

16、 in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. M U, C, R, A models I FRONT PANELS GLeakage current must not exceed 0.5mA. GBe sure to test for leakage with the AC plug in both polarities. “CAUTION” “F232 : FOR CONTINUED PROTE

17、CTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 3.15A, 125V FUSE.” CAUTION F232 : REPLACE WITH SAME TYPE 3.15A, 125V FUSE. ATTENTION F232 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 3.15A, 125V. A V RX-E400 RX-E400 3 M B, G models I REAR PANELS M U, C models M R model M A model M B mod

18、el M G model RX-E400 4 RX-E400 I FM SECTION Tuning Range U, C models . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 107.9MHz A, B, G models . . . . . . . . . . . . . . . . . . . 87.50 to 108.00MHz R model . . . . . . . . . . . . . . 87.5 to 108.0/87.50 to 108.00MHz Usable Sensitivity (75 ) Mo

19、no (S/N 30dB) U, C, R models . . . . . . . . . . . . . . . . 1.0V Alternate Channel Selectivity U, C, R models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70dB Signal-to-Noise Ratio Mono/Stereo (IHF) U, C, R models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76/70dB Har

20、monic Distortion Mono/Stereo (1kHz) . . . . . . . . . . . . . . . . . . . . . . . . 0.2/0.3% Stereo Separation 1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45dB Frequency Response 20Hz to 15kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5/-2.0dB Ante

21、nna Input . . . . . . . . . . . . . . . . . . . . . . . . . 75 unbalanced I AUDIO SECTION Minimum RMS Output Power Per Channel 20Hz to 20kHz, 0.1% THD, 6 . . . . . . . . . . . . . 40W + 40W 1kHz, 0.1% THD, 6 . . . . . . . . . . . . . . . . . . . . . 55W + 55W Maximum Power Per Channel (EIAJ) 1kHz, 1

22、0% THD, 6 (R model only) . . . . . . . . . 65W + 65W Dynamic Power Per Channel (IHF) 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60W + 60W 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75W + 75W 2 . . . . . . . . . . . . . . . . . . . . . . .

23、 . . . . . . . . . . . 100W + 100W DIN Standard Output Power Per Channel 1kHz, 0.7% THD, 4 (G model only) . . . . . . . . . 60W + 60W Dynamic Headroom (6) U, C, models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.76dB IEC Power Per Channel 1kHz, 0.1% THD, 6 (G model only) . . .

24、. . . . . . 55W + 55W Power Band Width 0.1% THD, 30W/6 . . . . . . . . . . . . . . . . . . . 10Hz to 50kHz Damping Factor 20Hz to 20kHz, 6 . . . . . . . . . . . . . . . . . . . . . . . .60 or more Input Sensitivity/Impedance CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV

25、/47k Maximum Input Signal Level (1kHz, 0.5% THD) CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0V Output Level/Impedance REC OUT (MD, TAPE) . . . . . . . . . . . . . . . . . . 150mV/1.2k SUB WOOFER (50Hz) . . . . . . . . . . . . . . . . . . . . . 2.0V/680 Head

26、phone Jack Rated Output/Impedance CD, etc 1kHz, 150mV, 8 . . . . . . . . . . . . . . . . . 0.43V/330 Frequency Response (20Hz to 20kHz) CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00.5dB Total Harmonic Distortion (20Hz to 20kHz) CD, etc to SP OUT (20W/6) . . . . . .

27、 . . . . . . . . . . . . 0.04% Signal-to-Noise Ratio (IHF-A-Network) CD, etc, Input Shorted (150mV) . . . . . . . . . . . . . . . . . . 93dB Residual Noise (IHF-A-Network) SP OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100V Channel Separation (Vol. 30dB) CD, etc, Inpu

28、t 5.1k Shorted, 1kHz/10kHz . . . . .60dB/45dB Tone Control Characteristics BASS: Boost/cut . . . . . . . . . . . . . . . . . . . . 10dB (50Hz) Turnover Frequency . . . . . . . . . . . . . . . . . 350Hz TREBLE : Boost/cut . . . . . . . . . . . . . . . . . . . 10dB (20kHz) Turnover Frequency . . . . .

29、 . . . . . . . . . . . . 3.5kHz Filter Characteristics SUB WOOFER (L.P.F.) . . . . . . . . . . . . . fc = 100Hz, 6dB/oct. I SPECIFICATIONS I AM SECTION Tuning Range U, C models . . . . . . . . . . . . . . . . . . . . . . . .530 to 1710kHz A, B, G models . . . . . . . . . . . . . . . . . . . . . .531

30、 to 1611kHz R model . . . . . . . . . . . . . . . . 530 to 1710/531 to 1611kHz Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . 300V/m Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loop antenna I GENERAL Power Supply U, C models . . . . . . . . . . .

31、 . . . . . . . . . . . . . AC 120V, 60Hz A model . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 240V, 50Hz B, G models . . . . . . . . . . . . . . . . . . . . . . . . AC 230V, 50Hz R model . . . . . . . . . . . . . . AC 110/120/220/240V, 50/60Hz Power Consumption U, C models . . . . . . .

32、. . . . . . . . . . . . . . . . . . . . . . . . . 110W R, A, B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . . 125W Standby Power Consumption U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7W A, B, G models . . . . . . . . . . . . . . . . . . . . . . .

33、. . . . . . . 0.8W Maximum Power Consumption 1kHz, 10% THD, 2ch, 6 (R model only) . . . . . . . . . 255W AC Outlets U, C, R, G models, Switched x 2 . . . . . . . 100W max (Total) A, B models Switched x 1 . . . . . . . . . . . . . . . . . . . 100W max Dimensions (W x H x D) . . . . . . . . . . . . .

34、. 217 x 108 x 372mm (8-9/16 x 4-1/4 x 14-5/8) Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4 kg (11 lbs. 14 oz) Finish U, C, R, A, G models . . . . . . . . . . . . . . . . . . . . . . Gold color U, B, G models . . . . . . . . . . . . . . . . . . . . . . . . . . Silver color Accesso

35、ries of CRX-E400 . . . . . . . . . . . AM loop antenna x 1 Indoor FM antenna x 1 Remote Control x 1 Battery (size UM-3, R06) x 2 Audio Pin Cable x 1 System Control Cable x 1 * Specifications subject to change without notice. U . USA model C . Canadian model A . Australian model B . British model G .

36、 European model R . General model RX-E400 RX-E400 RX-E400 5 * Specifications subject to change without notice. I INTERNAL VIEW qPOWER TRANSFORMER wMAIN (6) P.C.B. eAM/FM TUNER rMAIN (2) P.C.B. tOPERATION P.C.B. yMAIN (4) P.C.B. uMAIN (1) P.C.B. iMAIN (3) P.C.B. G DIMENSIONS (RX-E400) Unit : mm (inch

37、) 217 (8-9/16) 8 (5/16) 100 (3-15/16) 108 (4-1/4) 22 (7/8) 15 (9/16) 335 (13-3/16) 372 (14-5/8) I SPEAKER SECTION (NX-E400) Type . . . . . . . . . . . . 2way Bass-reflex Magnetic Shielding Type Driver Woofer . . . . . . . . . . . . . . . . . . . . . . 13cm (5-1/8) Cone Type Tweeter . . . . . . . . .

38、 . . . . . . . . . . . . . . 2.5cm (1) Dome Type Frequency Response . . . . . . . . . . . . . . . . . . . . 55Hz to 28kHz Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Nominal Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60W

39、Maximum Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110W Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87dB/2.83V,1m Crossover Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3kHz Input Terminal . . . . . . . . . . . . . . . . . .

40、 . . . . Screw/Banana Type Dimensions (W x H x D) . . . . . . . . . . . . . . 186 x 300 x 223mm (7-5/16 x 11-13/16 x 8-3/4) Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3 kg (9 lbs. 7 oz) Finish . . . . . . . . . . . . . . . . . . . . . . . . . . High Gloss Piano Finish Accesso

41、ries . . . . . . . . . . . . . . . . . . . . Speaker Cable (4m) x 2 RX-E400 6 RX-E400 1. Removal of Top Cover a. Remove 4 screws ( q ) and 4 screws ( w ) in Fig. 1. b. Lift the Top Cover at the rear and move it rear-ward slantingly. 2. Removal of Front Panel a. Disconnect 4 connectors (CB251, CB253,

42、 CB210, CB406) in Fig. 2. b. Remove 2 screws ( e ), 3 screws ( r ) and 1 plastic rivet ( t ) in Fig. 1. c.Release 2 hooks and remove the Front Panel Unit by pulling it forward. I DISASSEMBLY PROCEDURES (Remove parts in disassembly order as numbered.) Fig. 1 q w w Fig. 2 q Top Cover w Front Panel Uni

43、t Hook e r Hook e r Operation P.C.B. Front Panel Unit Main (3) P.C.B. Main (2) P.C.B. CB210 CB406 CB253 CB251 Main (1) P.C.B. t RX-E400 RX-E400 7 GServicing Position a. Remove the Top Cover and the Front Panel Unit. b. Remove 6 screws ( y ) in Fig. 3. c. Remove 5 screws ( u ) in Fig. 3. d. Remove 3

44、screws ( i ) in Fig. 3. e. Remove the Power Transformer and Main P.C.B. (with the rear panel attached) from the main chassis. f.With the rear panel attached, set the Main P.C.B on its side. At this time, set the Power Trans- former on its side as well in Fig. 4. g. Using a lead wire or the like, con

45、nect G250 of the Main (1) P.C.B. with the rear panel in Fig. 4. h. With the Front Panel Unit set on its side, connect 4 connectors (CB251, CB253, CB210, CB406) in Fig. 5. i.Connect the power cable, turn on the power and check for operation. Fig. 3 y Main Chassis y u i u Main (1) P.C.B. G250 Lead Wir

46、e Power Transformer Rear Panel Fig. 4 Fig. 5 Front Panel Unit CB210 CB406 CB253 CB251 RX-E400 8 RX-E400 ITEST MODE STANDBY/ON Key is pushed while pushing DISPLAY Key and AUTO/MANL Key. TEST MODE indication. PRESET/TUNING B Key Test mode number up. PRESET/TUNING N Key Test mode number down. PRESET/BA

47、ND Key Execute test mode. STANDBY/ON Key POWER OFF The completion of test mode. POWER Off condition TEST MODE UPTEST MODE DOWN When present mode is carried out. Test mode is finished. DISPLAYFUNCTIONPRESET/BAND Key 01 DEST-B,G 02 FL+CLEAR DESTINATIONR (AM9k/FM:50k)R (AM10k/FM100k)AB,GU,C DisplayR9kR

48、10kAB, GU, C (*1) 03 FL CHECK 04 Ver-A1.10 05 SUMCaa2 0499.05.28 TEST PROGRAM MODE FUNCTION DESCRIPTION Indication for destinaion. (*1) All FL segments and BACKUP RAM CLEAR. All FL segments and circuit board short circuit inspection. Version information of the microcomputer software. (*2) The date o

49、f the microcomputer software. (*2) The calculation of SUM is done and indicated after that. (*2) 1st : all segments light 2nd : RAM CLEAR 1st : all segments light 2nd : Even-numbered segments and even numbered digits are turned on. 3rd : Odd -numbered segments and odd- numbered digits are turned on. It is changed to the date indication. It is changed to version indication. Re-calculation (*2) Contents of indication change by the microcomputer software. (Note that memories set by the user will be erased.) Also, the pres