Yamaha GA 011589 service manual Heat Sink

Page 14

AG-Stomp

4.Heat Sink (Manhour requirement: 25 min.) 4-1. Remove the bottom case. (See Procedure 1.)

4-2. Remove the DM circuit board. (See Procedure 2.) 4-3. Remove the two (2) screws marked [A-a] from the

soldered face of the DM circuit board and the three

(3)screws marked [A-b] from IC112, IC113 and IC114. The heat sink can then be removed from the DM circuit board. (Fig. 4)

IC114

IC113

IC112

Fig.4

Heat Sink

[A-a]

[A-b]

[A-a]

14

Image 14
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 1/2KEC-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