Kurzweil CUP2 Service Manual page 83

A
Assembly instructions, PCBs and Assemblies
Audio Board 4-9
Control Assembly 4-12
Control Panel Board 4-14
Engine Board 4-5
Interface Board
connecting 4-8
replacing 4-7
Transformer 4-10
Assembly instructions, Audio components
Tweeter 4-10
Woofer 4-11
Assembly instructions, Keyboard Assembly
replacing contact boards 4-19, 4-20
replacing contact strips 4-21
replacing keys 4-18, 4-19
Audio Board
cables 4-8
diagram 4-9
function description 2-9
removing 4-8
replacing 4-9
Audio Problems: troubleshooting 5-4
Audio Output: diagnostic test 3-4
B
Back Panel
closing 4-3
diagram 4-2, 4-3
opening 4-2
Boot Loader: entering 3-1, 5-2
Burn-in Loop: diagnostic test 3-6
C
Circuit Board Descriptions
Audio PCB2-9
Control Panel PCB 2-12
Engine PCB2-1
Interface PCB2-5
Contact Boards
connecting 4-20
removing the Bass 4-20
removing the Treble 4-19
replacing the Bass 4-20
replacing the Treble 4-10
servicing 4-19
Contact Strips
removing 4-20
replacing 4-21
Control Assembly
diagrams, 1-1, 1-2, 1-4, 4-12, 4-13,
description 4-12
features 1-1
removing 4-12
replacing 4-12
Control Panel Board
diagram 4-13, 4-14
function description 2-12
removing 4-13
replacing 4-14
Control Panel Board Problems: troubleshooting 5-5
D
Diagnostic Test Modes: description 3-2
Diagnostic Test Descriptions
Audio Output 3-4
Burn-in Loop 3-6
Internal Flash 3-3
MARA Delay RAM 3-4
MARA Sound ROM 3-4
MARA Validity 3-3
MIDI UART 3-3
Scanner DIAG 3-5
SDRAM Refresh 3-3
Diagnostic Tests
entering 3-2
test results 3-2
Diagram
Audio Board 4-9
Back Panel 4-2, 4-3
Control Panel Board 4-13, 4-14
Control Assembly 1-1, 1-2, 1-4, 4-12
Interconnect 5-7
Engine Board 4-4
Interface Board 4-5
keys natural 4-17
keys sharp 4-17
Keyboard hardware 4-15
Rear Panel 1-4, 4-7
Woofer 4-11
Disassembly instructions, PCBs and Assemblies
Audio Board 4-8
Control Assembly 4-12
Engine Board 4-4
Control Panel Board 4-13
Interface Board 4-7
disconnecting 4-5
removing 4-7
Transformer 4-10
Disassembly instructions, Audio components
Tweeter 4-10
Woofer 4-11
Disassembly instructions, Keyboard Assembly
removing contact boards 4-19, 4-20
removing contact strips 4-20
removing keys 4-18
CUP2 Service Manual
Index
i