Board Configuration; The Details Of The Each Board; Swh-536A; Swh-537A - Hammond XK-5 Service Manual

1 Board configuration
Name
Mother Board
Peripheral board
Left side switch board of the panel
End block of the switch board
Right side switch board of the panel
Jack board
Keyboard contact board
Drawbar board

2 The details of the each board

2.1 Mother board MGH-106A
This board performs main control, MTWI sound source processing (refer the
system for the details) and effect processing. Transmit the sound by serial data (I
It consists of the following parts mainly.
• Main processor i.MX6Quad: Main control and sound source processing
ARM 9 Quad core, 1GHz
NXP (manufactured by Freescale)
• External memory for main processor
– Work memory DDR3 RAM 2Gbit 4pcs
– Program, Data microSDHC Memory Card 2pcs
– Temporary data FRAM 128Kbyte
• Power supply for main processor
• DSP C6657 : Effect processing
Dual core,1GHz
Manufactured by TI
10.Technical Description
Name of the board
MGH-106A
MXH-40A

SWH-536A

SWH-537A

SWH-538A

CNH-44A

KCH-21A/22A/23A
VRH-50A/50B
10-1
Major features
Main control, Sound source
processing and Effect process-
ing
D/A&A/D, Amplify audio sig-
nal, Vacuum tube, Supply the
power, Key scan, Jack I/F and
so on
Left side panel control
End block SW/LED
Right side panel control
Jack of the bottom surface
Keyboard contact matrix
Drawbars one set of nine
sound engine
2
S,TDM8ch).