Yamaha-AX596-int-sm维修电路原理图.pdf

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1、AX-596 SERVICE MANUAL STEREO AMPLIFIER AX-596 100717 I CONTENTS SPECIFICATIONS. 1 TO SERVICE PERSONNEL . 2 IMPEDANCE SELECTOR . 2 REAR PANELS . 3 INTERNAL VIEW . 5 DISASSEMBLY PROCEDURES . 5 ADJUSTMENTS . 6 BLOCK DIAGRAM. 6 -COM DATA . 7 PRINTED CIRCUIT BOARD . 815 SCHEMATIC DIAGRAM . 1617 PARTS LIS

2、T . 1827 REMOTE CONTROL TRANSMITTER . 28 IMPORTANT NOTICE 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, are already known and und

3、erstood 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. For these reasons, we ad

4、vise 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 or recognition of any ap

5、plicable 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 to improve YAMAHA product

6、s. 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. Discharge any static el

7、ectricity 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. AX-596 RadioFans.CN 收音机爱好者资料库 AX-59

8、6 1 I SPECIFICATIONS I Power Section Minimum RMS Output Power 8, 20Hz to 20kHz, 0.015% THD100W + 100W Maximum Output Power (EIAJ) 1kHz, 10% THD 8/6145W / 170W Dynamic Power (IHF) 8/6/4/2140/170/220/290W DIN Standard Output Power 4, 1kHz, 0.7% THD150W IEC Output Power 8, 1kHz, 0.015% THD110W Power Ba

9、nd Width 8, 50W, 0.03% THD10Hz to 50kHz Damping Factor 8, 20Hz to 20kHz320 Frequency Response 20Hz to 20kHz0 0.5dB 20Hz to 100kHz0 +0.5, 3dB Total Harmonic Distortion (20Hz to 20kHz) CD/DVD to SP OUT (8, 50W)0.008% Signal to Noise Ratio (IHF-A-Network) CD/DVD (Input Shorted, CD/DVD DIRECT AMP ON) 11

10、0dB PHONO (Input Shorted)92dB Residual Noise (IHF-A-Network) CD/DVD DIRECT AMP ON35V I Control Section Input Sensitivity / Impedance CD/DVD etc.150mV / 47k PHONO2.5mV / 47k Output Level / Impedance PRE OUT1V / 1.2k REC OUT150mV / 0.6k Headphone Jack Rated Output / Impedance 0.33V / 680 Channel Separ

11、ation CD/DVD (Input 5.1k Terminated) 1kHz/10kHz65 / 50dB Tone Control Characteristics BASS10dB (20Hz) TREBLE10dB (20kHz) Continuous Loudness Control Attenuation30dB (1kHz) I General Power Supply U, C modelsAC120V, 60Hz B, G modelsAC230V, 50Hz A modelAC240V, 50Hz R, T modelsAC110/120/220/240V, 50/60H

12、z Power Consumption Approx. 220W AC Outlets 3 switched outlets U, C, G, R, T models100W max, total 1 switched outlets A, B models100W max, total Dimensions (W x H x D)435 x 151 x 396mm (17-1/8 x 5-15/16 x 15-9/16) Weight 11.0 kg (23lbs. 5oz.) Accessories Remote Control Transmitter Batteries Color Go

13、ld / Black / Titan * Specifications subject to change without notice. U . U.S.A. modelC . Canada model G. European modelB . British model A . Australia modelT . China model R . General model DIMENSIONS RadioFans.CN 收音机爱好者资料库 AX-596 2 WARNING: CHEMICAL CONTENT NOTICE! The solder used in the producti

14、on 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 defects or other reproductive har

15、m. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA- SON 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 in contact with solder or comp

16、onents located inside the enclosure of this product, wash your hands before handling food. I TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed. 2. Le

17、akage Current Measurement (For 120V Models Only) When service has been completed, 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. GLeakage current must not exceed 0.5mA. G

18、Be sure to test for leakage with the AC plug in both polarities. I IMPEDANCE SELECTOR AX-596 3 I REAR PANELS R model U model C model A model AX-596 4 B model G model T model J model AX-596 5 I DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.) Disconnect the power cord from the AC outle

19、t. 1. Removal of Top Cover a. Remove 6 screws (1) in Fig. 1. 2. Removal of Front Panel a. Remove 6 screws (2) in Fig. 1. 3. Removal of Sub Chassis a. Remove 4 plastic rivets (3) in Fig. 1, then remove the Side Plates. b. Remove 5 screws (4) in Fig. 1. 4. Removal of Power Transformer a. Remove 4 scre

20、ws (5) in Fig. 1. b. Remove 4 screws (6) in Fig. 1. 5. Checking and Parts Replacement of MAIN P.C.B. (1) a. Remove 2 plastic rivets (7) in Fig. 1. b. Remove 12 screws (8) in Fig. 1, then remove the MAIN P.C.B. (1) with Heat Sink. Fig. 1 I INTERNAL VIEW 1 MAIN P.C.B. (9) 2 MAIN P.C.B. (2) 3 MAIN P.C.

21、B. (1) 4 MAIN P.C.B. (5) 5 FUNCTION P.C.B. (13) 6 FUNCTION P.C.B. (4) 7 FUNCTION P.C.B. (5) 8 MAIN P.C.B. (10) 9 MAIN P.C.B. (11) 0 FUNCTION P.C.B. (7) A FUNCTION P.C.B. (6) B FUNCTION P.C.B. (3) C FUNCTION P.C.B. (1) AX-596 6 I ADJUSTMENTS Confirmation of Idling Current Right after Power is switche

22、d ON, confirm the voltages measured at R111, R135 (L ch) and R112, R136 (R ch) are between 0.4mV to 8.0mV. If it exceeds 8.0mV, open (cut off) R175 (L ch), R176 (R ch) and reconfirm the voltage. I BLOCK DIAGRAM AX-596 7 I -COM DATA IC308 : M34748E8SP ABCDEFGHIJ 1 2 3 4 5 6 7 AX-596 To MAIN (5) To/Fr

23、om FUNCTION (1) SPEAKERS B IMPEDANCE SELECTOR WH From MAIN (9)From MAIN (2) WH WH OROR POW +12S E BL BEBE BL MU S12 GND GND RYSP RYPS PRPS PRI PRO VRP VRG RE BE P. C. B. MAIN (1) P. C. B. MAIN (7) From FUNCTION (1) -15 15 E E L E R E From FUNCTION (7) HL E HR LB A B 9 I PRINTED CIRCUIT BOARD (Foil s

24、ide) 8 ABCDEFGHIJ 1 2 3 4 5 7 AX-596 6 From MAIN (1) +-+- SPEAKERS A LR BEWHBL RE P. C. B. MAIN (5) POWER WHWH WH WHBR GY POW +12S E To MAIN (7) From MAIN (10) AC OUTLETS AC P. C. B. MAIN (2) P. C. B. MAIN (11) POWER TRANSFORMER WH WH OR GY RE YE OR WH BE BR BR OR BE BE BL To MAIN (2) P. C. B. MAIN

25、(9) To MAIN (1) To/From MAIN (4) (R, T models only) P. C. B. MAIN (10) To/From MAIN (10) VOLTAGE SELECTOR BEOR BR YE WH RE P. C. B. MAIN (4) (R, T models only) 10 I PRINTED CIRCUIT BOARD (Foil side) 11 ABCDEFGHIJ 1 2 3 4 5 6 7 AX-596 14 85 14 85 14 85 14 85 1 15 16 30 1 1516 30 CE Data CL -15 15 CDM

26、 E CDDL E CDDR E L E R 15 -15 PHR E PHL E CDR E CDL E TUNERAUXTAPE PB TAPE REC OUT MD PB MD REC OUT To/From FUNCTION (1) From FUNCTION (5) P. C. B. FUNCTION (4) 110 VOLUME INPUT REC OUT To/From FUNCTION (1) P. C. B. FUNCTION (3) LI E LO E RO E RI LED3 LED4 VRG VRdn VRup VRP ENR ENL DG 5V REC 1 2122

27、42 1 8 PURE DIRECTCD/DVD DIRECT AMP To/From FUNCTION (3) To/From FUNCTION (8) To/From MAIN (1) To MAIN (1) To/From FUNCTION (4) To/From FUNCTION (4) To/From FUNCTION (6) To/From FUNCTION (13) P. C. B. FUNCTION (1) LI E LO E RO E RI LED3 LED4 VRG VRdn VRup VRP ENR ENL DG 5V REC PS DG REW 5V AU TA MD

28、CD TU PH LSBY TRO E TLO -15 TRI E TLI -15 15 E E L E R E CE Data CL -15 15 POR E POL E MIR E MIL 15 -15 MU R E L E CDDR E CDDL E CDM VRG VRP PRD PAI PRPS RYPS RYSP DG DG S12 MU 1312 I PRINTED CIRCUIT BOARD (Foil side) ABCDEFGHIJ 1 2 3 4 5 7 AX-596 6 1 8 MU -15 15 MIL E MIR E POL E POR PRE OUT MAIN I

29、N To/From FUNCTION (1) P. C. B. FUNCTION (13) CD/DVD DIRECT AMP PURE DIRECT From FUNCTION (1) P. C. B. FUNCTION (11) LED3 LED2 LED1 POWER From FUNCTION (8) P. C. B. FUNCTION (10) 5V LSBY STANDBY/ON To FUNCTION (8) P. C. B. FUNCTION (9) PS DG REM 5V AUXMDTAPECD/DVDTUNERPHONO From FUNCTION (9) To FUNC

30、TION (10) To/From FUNCTION (1) P. C. B. FUNCTION (8) PS DG REW 5V AU TA MD CD TU PH LSBY 5V LSBY 5V REM DG PS SPEAKERS AB PHONES To MAIN (1) P. C. B. FUNCTION (7) B A LB HR E HL 1 8 LOUDNESSBALANCETREBLEBASS To/From FUNCTION (1) P. C. B. FUNCTION (6) TRO E TLO -15 TRI E TLI 8 1 15 -15 PHR E PHL E CD

31、R E CDL E CD/DVDPHONO To FUNCTION (4) P. C. B. FUNCTION (5) 1415 I PRINTED CIRCUIT BOARD (Foil side) A 1 2 3 4 5 6 7 8 9 BCDEFGHIJKL AX-596 #? All voltage are measured with a 10M? /V DC electric volt meter. #? Components having special characteristics are marked s and must be replaced with parts hav

32、ing specifications equal to those originally installed. #? Schematic diagram is subject to change without notice. 16 SCHEMATIC DIAGRAM PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS. 2SC1815? 2SA1015? 2SC1890A 2SC44882SD1915F 2SC1740S DTC114ES DTC144ES 2SA933S EE C C B B EC B DIODES Anode Cat

33、hode NJM2068LD NJM4558L 1 8 LB1641LC78211 1 10 M34748E8SP 1 21 42 1 15 30 23 P1 5 IN 1 1 GND 4VZ 6IN 2 OUT 1 8 VCC 2 10 OUT 2 9 P2 INPUT LOGIC PRE DRIVER 7 VCC 1 87654321 OUT1 Vcc +IN2 IN2 OUT2 +Vcc +IN1 IN1 NJM2068LD / NJM4558LDLC78211 Point 1 and 2 Emitter of Q322 Base of Q316 Point 3 Pin 20 of IC

34、308 LB1641 1 2 3 4 5 6 7 8 9 10 11 30 29 28 27 26 25 24 23 22 21 20 19 16 12 18 17 14 15 13 LEVEL SHIFTER LATCH CONTROL SHIFT REGISTER ZZ ZZ ZZ L1 L2 L3 L4 LCOM1 L5 L6 L7 L8 RES S VDD VSS VEE LCOM2 LCOM3 R1 R2 R3 R4 RCOM1 RCOM2 RCOM3 R5 R7 R8 D1 CL CE R6 With the POWER switch turned ON, connect the

35、power cord to the AC outlet. Disconnect the power cord from the AC outlet. To MAIN (1) see page 17 CD/DVD DIRECT AMP OFF CD/DVD DIRECT AMP ON CD/DVD DIRECT AMP & PURE DIRECT OFF To MAIN (1) see page 17 To/From MAIN (1) see page 17 K 4 G 1 1 3 2 12.7 0 0 0 0 0 0 0 0 00 0 0 0 0 -12.8 13.0 13.1 -13.0 -

36、13.0 -13.0 -13.1 -13.6 -13.6 -13.6 -13.6 13.8 13.8 13.5 13.5 12.9 12.9 0.1 0.1 0.1 0.1 -0.6 -0.6 -0.6 0.6 0.60.6 0.6 -0.6 0 0 0 0 0.7 0.7 12.9 12.9 12.9 -13.0 -13.0 -13.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12.9 -13.0 0 0 0 0 0 0 0 0 0 0 0 000000 0000000 00 0 00 00000 00 00 000000 0000 0 0 0 0 0 0 0 4.8 4.8

37、 14.8 14.5 14.5 14.8 14.8 -14.7 -14.7 0 0 00 11.89.9 0.70.4 0 0.5 0.7 0.5 1.7 1.7 17.4 17.4 11.812.413.0 0 0 0 0 0 0 13.7 -13.8 0 0 0.1 0.1 0.1 0.1 13.4 -14.5 0 -0.1 0 0.7 4.9 4.8 14.5 14.6 14.6 14.6 0 0 0 0 0 0 0 0 0 0 4.8 4.8 4.9 4.4 0 4.8 4.8 4.8 4.8 4.8 4.8 0.1 4.8 4.8 4.4 4.6 4.8 4.8 4.8 4.8 4.

38、9 4.9 2.2 2.4 2.9 0.6 1.7 4.8 0 0 00 0.6 0.6 0.5 0.4 9.9 1.7 1.0 0 0 14.6 14.5 13.9 4.8 4.8 4.8 4.8 4.8 2.6 4.8 4.8 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 4.4 0 4.9 0 0 0 6.1 6.67.3 13.813.7 13.1 6.1 5.5 5.5 5.5 5.5 5.5 5.5 -14.6 4.9 4.8 4.8 4.8 13.6 0 0 0 0 0 0 0 0 0 0 14.1 -14.2 -14.6 INPUT SELECTOR

39、CD BUFFER PHONO EQ AMP MOTOR DRIVER SYSTEM CONTROL RESET PROTECTION MUTING VOLUME AMP TONE CONTROL AMP PHONES SPEAKERS AB A 1 2 3 4 5 6 7 8 9 BCDEFGHIJKL SCHEMATIC DIAGRAM 17 AX-596 PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS. BCE 2SC44662SA1145 2SA970 2SC2705 2SC1815? 2SA1015? 2SA893A 2SC

40、1890A S5VB202SA13582SC4488 2SA1708 2SD1915F 2SC1740S DTA123ESTP EE C C B B EC B + E C B DIODES Anode Cathode #? All voltage are measured with a 10M? /V DC electric volt meter. #? Components having special characteristics are marked s and must be replaced with parts having specifications equal to tho

41、se originally installed. #? Schematic diagram is subject to change without notice. To/From FUNCTION (1) see page 18 From FUNCTION (7) see page 16 From FUNCTION (1) see page 16 14.7 -14.7-17.7 17.5 15.3 -15.3 -15.3 -15.4 0 0 0 0 0 0 00 06.6 6.6 6.7 6.7 14.1 14.1 14.1 0.1 0.1 0.7 0 0 AC69.2AC82.0 52.0

42、(43.6) -52.1 (-43.7) 0 0 0.7 14.8 14.6 17.4 17.4 -5.7-5.7 17.5 17.517.5 17.5 -17.6 -17.8 -17.8 -0.3 -17.7 17.5 17.5 15.7 17.6 AC82.0 0 0 0 0 -14.6 -14.6 00 -51.2-51.2 -51.2 -51.2 0.60.6 0.6 0.6 0.6 0.6 0 0 0 0 0 0 0 0 0 -52.1 -52.1-51.2 -51.2 -51.2 -51.2 -51.2 -51.7 -51.7 -51.2 -51.8-51.8 -51.2 -51.

43、2 -51.2 -51.2 -51.2 -51.2 -52.1 -52.1 -52.1 -50.2 -1.1-1.1 -0.6 -0.6 -0.6 0 0 0 0 0 50.7 52.0 52.0 52.0 51.6 52.0 51.5 0.6 0.6 1.1 1.1 1.1 0.6 0 0 -1.1 -0.5 -51.2 -51.2 -51.2 -51.2 0.60.6 0.6 -51.0-51.0 51.7 00 -50.6 -52.1 1.1 1.1 1.1 -1.1 -0.5 -0.5-0.5 -1.1 -1.1 -0.5 51.7 51.0 51.051.0 51.6 51.4 52

44、.0 52.0 52.0 52.0 52.0 52.0 51.8 -14.2 -12.4 -12.4 -14.5 POWER SUPPLY RELAY DRIVER POWER SUPPLY POWER AMP IMPEDANCE SELECTOR SPEAKERS A SPEAKERS B POWER AX-596 18 I WARNING Components having special characteristics are marked s and must be replaced with parts having specifications equal to those ori

45、ginally in- stalled. GCarbon resistors (1/6W or 1/4W) are not included in the ELECTRICAL PARTS List. For the parts No. of the carbon resistors, refer to last page. ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS: C.A.EL.CHP: CHIP ALUMI.ELECTROLYTIC CAP C.CE: CERAMIC CAP C.CE.ARRAY : CERAMIC CAP ARRAY C.CE

46、.CHP: CHIP CERAMIC CAP C.CE.ML: MULTILAYER CERAMIC CAP C.CE.M.CHP: CHIP MULTILAYER CERAMIC CAP C.CE.SAFTY: RECOGNIZED CERAMIC CAP C.CE.TUBLR: CERAMIC TUBULAR CAP C.CE.SMI: SEMI CONDUCTIVE CERAMIC CAP C.EL: ELECTROLYTIC CAP C.MICA: MICA CAP C.ML.FLM: MULTILAYER FILM CAP C.MP: METALLIZED PAPER CAP C.M

47、YLAR: MYLAR FILM CAP C.MYLAR.ML : MULTILAYER MYLAR FILM CAP C.PAPER: PAPER CAPACITOR C.PLS: POLYSTYRENE FILM CAP C.POL: POLYESTER FILM CAP C.POLY: POLYETHYLENE FILM CAP C.PP: POLYPROPYLENE FILM CAP C.TNTL: TANTALUM CAP C.TNTL.CHP: CHIP TANTALUM CAP C.TRIM: TRIMMER CAP CN: CONNECTOR CN.BS.PIN: CONNECTOR,BASE PIN CN.CANNON: CONNECTOR,CANNON CN.DIN: CONNECTOR,DIN CN.FLAT: CONNECTOR,FLAT CABLE CN.POST: CONNECTOR,BASE POST COIL.MX.AM: COIL,AM MIX COIL.AT.FM: COIL,FM ANTENNA COIL.DT.FM: COIL,FM DETECT COIL.MX.FM: