Yamaha GA 011589 service manual Disassembly Procedure, Bottom30

Page 12

AG-Stomp

DISASSEMBLY PROCEDURE

1.Bottom Case (Manhour requirement: 5 min.) Remove the six (6) screws marked [30]. The bottom case can then be removed. (Fig. 1)

Bottom[30]

[30]

[30]:Bind Head Tapping Screw-B 3.0x8 MFZN2BL (EP600190)

Fig.1

2.DM Circuit Board

(Manhour requirement: 15 min.)

2-1. Remove the bottom case. (See Procedure 1.)

2-2.DM1/2 Circuit Board (Manhour requirement: 10 min.)

Remove the one (1) screw marked [T110A], three

(3)screws marked [T120], four (4) hexagonal nuts marked [T50A] and four (4) flat washers marked [T60A] from the rear panel and the three (3) screws marked [T110B] from the DM1/2 circuit board. The DM1/2 circuit board can then be removed. Remove the four (4) toothed washer internal tooth forms marked [T70] as well when removing the DM1/2 circuit board from the main body. (Fig. 2)

2-3.DM2/2 Circuit Board (Manhour requirement: 5 min.)

Remove the one (1) hexagonal nut marked [T50B] and one (1) flat washer marked [T60B]. The DM2/2 circuit board can then be removed.

Rear

[T120]

[T110A]

[T50A][T60A]

[T50B][T60B]

 

[T50]:Hexagonal Nut 9.0 12x2 MFNI33 (LX200060)

 

[T60]:Flat Washer 9x14 0.5 FNM3 (VL802300)

12

[T120]:Bind Head Tapping Screw-P 3.0x12 MFZN2BL (VC161100)

 

Image 12
Contents Acoustic Guitar PRE-AMPLIFIER AG-Stomp Specifications Digital SectionAG-Stomp Panel Layout AG-Stomp Pre-AmpSection AG-Stomp Footswitch Section Block Diagram DM 2/2 DM 1/2 KEC-54233 Circuit Board Layout Wiring Disassembly Procedure Bottom30PN 1/2 Heat Sink LSI PIN Description HD6413002FP16 XQ375A00 CPUYSS910-S XV988A00 DSP6 Digital Signal Processor AK4520A-VF-E2 XT802A00 DAC & ADC IC Block Diagram AsspNJM5532M XC011A00 Circuit Boards To PN1/2-CN302 To PN1/2-CN303 To PN1/2-CN304 AG-Stomp DM 1/2 Circuit Board AG-Stomp DM 2/2 Circuit Board Pattern side AG-Stomp PN 1/2 Circuit Board To DM1/2-CN103 AG-Stomp PN 1/2 Circuit Board PN 2/2 Circuit Board AG-Stomp Pattern side Test Program Connection of TerminalsSW Check Midi Check Input Output Error Messages E1 Midi Receive Buffer FullOmni ON, Mono Parts List Overall Assembly Description Remarks Electrical Parts V7494000 XZ108A00 RG004470 V7491800 VK701100 PN 1/2 DM 2/2 AG-Stomp Overall Circuit Diagram 3/3 DM