Yamaha-PSRS-350-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL I CONTENTS SPECIFICATIONS. 3 PANEL LAYOUT . 4 CIRCUIT BOARD LAYOUT & WIRING . 6 BLOCK DIAGRAM . 8 DISASSEMBLY PROCEDURE . 9 LSI PIN DESCRIPTION . 13 IC BLOCK DIAGRAM. 16 CIRCUIT BOARDS . 16 TEST PROGRAM . 25 DATA BACKUP & INITIALIZATION . 28 MIDI IMPLEMENTATION CHART . 29 OVERALL CIRC

2、UIT DIAGRAM PARTS LISTThis document is printed on chlorine free (ECF) paper with soy ink. 1.412K-976 Printed in Japan 01.05 PK 001653 PSR-350 2 IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic servic

3、e procedures inherent to the industry, and more specifically Yamaha Products, 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, destructi

4、on of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative. IMPORTANT :This presentation or sale of this m

5、anual to any individual or firm does not constitute authoriza-tion, certification, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit (s) indicated on the cover. The re

6、search engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefor, inevitable and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the d

7、istributors Service Division. WARNING :Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus). IMPORTANT :Turn the unit OFF during disassembl

8、y and parts replacement. Recheck all work before you apply power to the unit. WARNING : CHEMICAL CONTENT NOTICE ! 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 chemical

9、s found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between

10、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 components located inside the enclosure of this product, wash your hands before handling food. I WARNING Components having special characteristics are marked Z

11、and must be replaced with parts having specification equal to those originally installed. PSR-350 3 I SPECIFICATIONS Keyboards 61 standard-size keys (C1 - C6), with Touch Response and Dynamic Filter. Display Large multi-function LCD display (backlit) Setup STANDBY/ON MASTER VOLUME : MIN - MAX Panel

12、Controls OVERALL (L, R), SONG, VOICE, STYLE, PORTABLE GRAND, DJ, METRONOME, 0-9, +(YES), -(NO), DEMO, TOUCH, HARMONY, Dict., L, R, TEMPO/TAP Voice 116 panel voices + 12 drum kits + XG expanded voices +10 DJ voices Polyphony : 32 Auto Accompaniment 106 styles + Disk Accompaniment Control : ACMP ON/OF

13、F, SYNC STOP, SYNC START, START/STOP, INTRO/ENDING, MAINA/B(AUTO FILL) Fingering : Multi fingering Accompaniment Volume Music Database 208 Yamaha Educational Suite Dictionary Lesson 1-4 One Touch Setting Voice (for each style or song) Overall controls Lesson R, L Octave Transpose Tuning Accompanimen

14、t/Song Volume Metronome Volume Reverb DSP Harmony Grade/Talking MIDI Effects Reverb: 8 types DSP: 38 types Harmony : 26 types Song 100 Songs + 5 User Songs Song Clear, Track Clear Recording Song User Song: 5 Songs Recording Tracks: 1, 2, 3, 4, 5, CHORD Disk Song Playback Save Load Delete Format MIDI

15、 Initial Send Local on/off Auxiliary jacks PHONES/OUTPUT, DC IN 12V, MIDI IN/OUT, SUSTAIN Amplifier 3.0W + 3.0W Speakers 12cm x 2 + 3cm x 2 Power Consumption 22 W (when using PA-5C power adaptor) Power Supply Adaptor : Yamaha PA-5C AC power adaptor Batteries : Six “D” size, R20P (LR20) or equivalent

16、 batteries Dimensions (W x D x H) 952 x 387 x 169 mm (37-1/2 x 15-1/4 x 6-2/3) Weight 8.5 kg (18 lbs., 12 oz.) Supplied Accessories Music Stand Data Disk Owners Manual Song Book Optional Accessories Headphones: HPE-150 AC power adaptor: PA-5C Footswitch: FC4, FC5 Keyboard stand: L-6 PSR-350 4 G Top

17、Panel I PANEL LAYOUT q w e i o !8!7!9 0 1 2 3 r t A A GrandPno000 001 45 !0!2!1 6 7 yy !3!5 !4 u !6 A A PSR-350 5 G Rear Panel q Power switch (STANDBY/ON) w MASTER VOLUME dial e DEMO button r TOUCH button t HARMONY button y Overall (left, right) buttons u DUAL and SETTING H/G buttons i Dict. (DICTIO

18、NARY) button o LESSON L (Left) and R (Right) buttons !0 SONG button !1 STYLE button !2 VOICE button !3 PORTABLE GRAND button 98#0#1 !4 METRONOME button !5 DJ button !6 Numeric keypad, +/YES and -/NO but-tons !7 ACMP ON/OFF / A-B REPEAT button !8 SYNC STOP button !9 SYNC START / PAUSE button 0 START/

19、STOP button 1 INTRO/ENDING / REW button 2 MAIN/AUTO FILL / FF button 3 TEMPO/TAP button 4 SONG MEMORY buttons 5 MUSIC DATABASE button 6 REGISTRATION MEMORY buttons 7 Disk Drive 8 MIDI IN, MIDI OUT connectors 9 FOOT SWITCH jack #0 PHONES/OUTPUT jack #1 DC IN 12V jack PSR-350 6 I CIRCUIT BOARD LAYOUT

20、& WIRING G Lower case side G Upper case side WH200 C40C50 440 Speaker (Woofer-R)Speaker (Woofer-L) MKS5MK-L DM AM MK-H AM-WH999AM-WH998 Speaker (Tweeter-R)Speaker (Tweeter-L) FDD AM 450 Speaker (Tweeter-R)Speaker (Tweeter-L)PN-WH11 L70PN-WH9 TW-RTW-L PN-WH2 460 PN-WH1 AM-WH3 AM-WH2 PN-WH10 TW-R TW-L

21、 450460AM-WH2AM-WH3AM-WH7PN-WH10 PN-WH11L70 PSR-350 7 G Upper case side WH200L70 PN3 LCD PN4PWVR PN1 440- -KBDM-CN102 *6*1MKS5-CN1 *6*16P(V718860) 450V3819800FDDDM-CN301*1FDD-CN1*334P 460- -FDPSAM-CN908*1FDD-CN2*22/4P(V718900) C40- -SPSpeaker (Wo)AM-CN802*44P(V718870) C50- -BATBatteryAM-CN903*52P(V7

22、05790) AM-WH2- -PSAM-CN901DM-CN101*17P(V718820) AM-WH3- -DJAM-CN602DM-CN601*16P(V718830) AM-WH7- -EP1AM-EP1AM-EP2L=120(V719460) AM-WH998- -TWAM-CN909TW-L(V718880) AM-WH999- -TWAM-CN910TW-R(V718880) WH200- -LCDLCD-CN1DM-CN175*112P(V718800) PN-WH1- -PN1PN 1-CN1DM-CN701*18P(V718750) PN-WH2- -PN2PN 1-CN

23、2DM-CN702*110P(V718760) PN-WH4- -PN3PN 2-CN4PN 1-CN3*115P(V718770) PN-WH5- -PN4PN 2-CN5PN 4-CN8*17P(V718780) PN-WH6- -PN5PN 2-CN6PN 3-CN76P(V718790) PN-WH9- -VR1VR-CN9DM-CN501*15P(V718840) PN-WH10- -VR2VR-CN10AM-CN801*15P(V718850) PN-WH11- -SWPW-CN11AM-CN902*14P(V719860) L70- -BLTBack LightAM-CN907*

24、12P(V718810) * The parts with “” in “Part No.” are not available as spare parts. * 1 : Edge mark is adjusted to Pin 1 mark (mark). * 2 : Red wire is adjusted to Pin 1 mark (mark). * 3 : Connector hook is located at the upper side of FDD. * 4 : White wire is adjusted to Pin 1 mark (mark). * 5 : Red w

25、ire is adjusted to Pin 1 mark (mark). * 6 : Be sure to make a correct match when connecting MKS5(CN1) and DM(CN102). Connecting the connectors in the wrong way around may cause damage to the MKS5 circuit board. LocationPart No.Connector AssemblyDestinationRemarks PN-WH2PN-WH1 PN2 Back Light Assembly

26、 PN-WH11 PN-WH10 PN-WH9 PN-WH6 PN-WH5 PN-WH4 Caution: Be sure to attach the removed filament tape just as it was before removal. PSR-350 8 I BLOCK DIAGRAM 5MHz CN3 CN2CN4 CN1 BACK LIGHT CN301CN102 CN702 CN701 CN1CN2 CN3 CN4 CN5 CN6 CN7 CN01 CN101 CN902 CN903 32M 32M SWX00B CN602 CN601 IC601 CN715 1

27、CN9CN10 VR1 MASTER VOLUME CN801 CN909 CN802 CN910 LA4705NA 14 15 NJM78L05A CN901 CN907CN908 CN11 CN8 TWEETER WOOFER TWEETER WOOFER 28CA1-889533 MKS5 MK-LMK-H PN1 PN2 PN4 PN3 LCD AM VR PW TW -RTW -L PSR-350 9 I DISASSEMBLY PROCEDURE 3.DM Circuit Board, Shield Box U and L (Time required : About 10 min

28、.) 3-1.Remove the lower case assembly. (See procedure 1) 3-2.Remove the two (2) screws marked 270B and the thirteen (13) screws marked 290. The shield box U and the DM circuit board can then be removed. (Fig. 4) 3-3.Remove the three (3) screws marked 260A. The shield box L can then be removed. (Fig.

29、 4) 4.Floppy Disk Drive Assembly (Time required : About 10 min.) 4-1.Remove the lower case assembly. (See procedure 1) 4-2.Remove the DM circuit board and the shield box U and L. (See procedure 3) 4-3.Remove the four (4) screws marked 300. The floppy disk assembly can then be removed. (Fig. 5) 5.AM

30、Circuit Board (Time required : About 10 min.) 5-1.Remove the lower case assembly. (See procedure 1) 5-2.Remove the seven (7) screws marked 260B. The AM circuit board can then be removed. (Fig. 5) 270A :Bind Head Tapping Screw-P3.0X12MFZN2Y(EP600300) 280A :Bind Head Tapping Screw-P3.0X25MFZN2Y(VK2281

31、00) (Fig. 1) 2.Spring Terminal (Time required : About 10 min.) 2-1.Remove the lower case assembly. (See procedure 1) 2-2.Remove the BAT connector assembly (red/black) soldered to the spring terminal (+)/(-). (Fig. 2) 2-3.Remove the battery cover assembly. (Fig. 1) 2-4.Remove the spring terminal by r

32、eleasing hooks (2 locations for each). (Fig. 3) (Fig. 2) (Fig. 3) 1.Lower Case Assembly (Time required : About 5 min.) 1-1.Remove the fourteen (14) screws marked 270A and the four (4) screws marked 280A. The lower case assembly can then be removed. (Fig. 1) 270A270A270A 270A270A 280A280A 270A Lower

33、Case AssemblyBattery Cover Assembly Spring Terminal Hook Hook Lower Case Assembly BAT Connector Assembly (Black) BAT Connector Assembly (Red) PSR-350 10 30 :Bind Head Tapping Screw-P3.0X8MFZN2Y(EP600280) 260A :Bind Head Tapping Screw-P3.0X8MFZN2Y(EP600280) 270B :Bind Head Tapping Screw-P3.0X12MFZN2Y

34、(EP600300) 280B :Bind Head Tapping Screw-P3.0X25MFZN2Y(VK228100) 290 :Bind Head Tapping Screw-B3.0X8MFZN2Y(EP600250) C30 : Bind Head Tapping Screw-P4.0X8MFZN2BL (VB931600) (Fig. 4) 260 :Bind Head Tapping Screw-P3.0X8MFZN2Y(EP600280) 300 :Sems Pan Head Screw3.0X10MFZN2Y(V5115200) (Fig. 5) 260A C30 30

35、 Speaker (Woofer)Speaker (Woofer) C30 280B 270B 290270B 280B Keyboard Assembly Shield Box U C30C30290 290290 290 290290 Speaker (Tweeter)Speaker (Tweeter) 260B300 260J260J 260B 300260B MK-LMK-HMKS5 DM AM AM FDD TW-LTW -R Shield Box L PSR-350 11 Volume Knob 6.PN 1 Circuit Board (Time required : About

36、 15 min.) 6-1.Remove the lower case assembly. (See procedure 1) 6-2.Remove the DM circuit board and the shield box U and L. (See procedure 3) 6-3.Remove the floppy disk drive assembly. (See procedure 4) 6-4.Remove the six (6) screws marked 260C. The PN 1 circuit board can then be removed. (Fig. 6) 7

37、.PN 2 Circuit Board (Time required : About 20 min.) 7-1.Remove the lower case assembly. (See procedure 1) 7-2.Remove the DM circuit board and the shield box U and L. (See procedure 3) 7-3.Remove the floppy disk drive assembly. (See procedure 4) 7-4.Remove the AM circuit board. (See procedure 5) 7-5.

38、Remove the ten (10) screws marked 260D. The PN 2 circuit board can then be removed. (Fig. 6) 8.PN 3 Circuit Board (Time required : About 8 min.) 8-1.Remove the lower case assembly. (See procedure 1) 8-2.Remove the six (6) screws marked 260E. The PN 3 circuit board can then be removed. (Fig. 6) 9.PN

39、4 Circuit Board (Time required : About 10 min.) 9-1.Remove the lower case assembly. (See procedure 1) 9-2.Remove the AM circuit board. (See procedure 5) 9-3.Remove the four (4) screws marked 260F. The PN 4 circuit board can then be removed. (Fig. 6) 260 :Bind Head Tapping Screw-P3.0X8MFZN2Y(EP600280

40、) L50 :Bind Head Tapping Screw-P3.0X8MFZN2Y(EP600280) (Fig. 6) (Fig. 7) 10.PW Circuit Board (Time required : About 5 min.) 10-1.Remove the lower case assembly. (See procedure 1) 10-2.Remove the two (2) screws marked 260G. The PW circuit board can then be removed. (Fig. 6) 11.VR Circuit Board (Time r

41、equired : About 10 min.) 11-1.Remove the lower case assembly. (See procedure 1) 11-2.Remove the AM circuit board. (See procedure 5) 11-3.Remove the volume knob from the control panel side. (Fig. 7) 11-4.Remove the three (3) screws marked 260H. The VR circuit board can then be removed. (Fig. 6) 12.LC

42、D Unit (LCD Circuit Board, Back Light Assembly and LCD) (Time required : About 20 min.) 12-1.Remove the lower case assembly. (See procedure 1) 12-2.Remove the DM circuit board and the shield box U and L. (See procedure 3) 12-3.Remove the AM circuit board. (See procedure 5) 12-4.Remove the four (4) s

43、crews marked 260I. The LCD unit can then be removed. (Fig. 6) 12-5.Remove the eight (8) screws marked L50. The LCD circuit board can then be removed. (Fig. 6) *When you install the LCD circuit board, tighten the screws from No.1 to No. 8 in order as shown in Figure 6-1. 260Dx10 260Gx2 260Ex6260Cx6 2

44、60Fx4 260Hx3 260Ix4L50 x8 LCD Unit PN1 PN2PN3 VRPWPN4LCD LCD 3456 1782 (Fig. 6-1) PSR-350 12 13.Keyboard Assembly (Time required : About 10 min.) 13-1.Remove the lower case assembly. (See procedure 1) 13-2.Remove the two (2) screws marked 280B. The keyboard assembly can then be removed. (Fig. 4) 14.

45、Speakers and TW Circuit Board (Time required : About 10 min.) 14-1.Remove the lower case assembly. (See procedure 1) 14-2.Remove the right and left (woofer) speakers by removing four (4) screws marked C30 from each speaker. (Fig. 4) 14-3.Remove the right and left TW circuit boards by removing two (2

46、) screws each marked 260J. (Fig. 5) 14-4.Remove the right and left (tweeter) speakers. (Fig. 5, Photo 1) 16.Assembling the Keyboard Assembly 16-1Install the white keys CEGB from the lower notes, and then install the DFA keys and C key. Afterwards install the black keys from the higher notes, and tig

47、hten the twenty-one (21) screws marked 140. (Fig. 9) 16-2Install the rubber contacts in the assembly while pressing the keys as shown in Figure 10. Check that the rubber contact has been firmly placed into position in the area indicated by the arrow in Figure 11. When fitting the rubber contacts, raise both ends of the frame so that keys do not push the rubber contact up. 16-3Install the MK-L, MK-H circu