Roland VS-840 - Page 18

PARTS LIST (VS4S-1)
SAFETY PRECAUTIONS:
The parts marked have
safety-related characteristics.
Use only listed parts for
replacement.
!
CONSIDERATIONS ON PARTS ORDERING
When ordering any parts listed in the parts list, please specify the following items in the order sheet.
QTY PART NUMBER DESCRIPTION MODEL NUMBER
Ex. 10 22575241 Sharp Key C-20/50
15 2247017300 Knob (orange) DAC-15D
Failure to completely fill the above items with correct number and description will result in delayed or
even undelivered replacement.
18
NOTE:The parts marked # are new (initial parts)
HOLDER
# 01344656 VS-840 SCSI HOLDER
PCB ASSY
# 71017390 VS4S-1 BOARD ASSY SCSI BOARD
IC
00893356 NCR53CF92 SCSI I/O IC2 on SCB
15249111 TC7WU04F INVERTER IC3 on SCB
00893990 BH9595FP SCSI ACTIVE TERMINATOR IC1 on SCB
DIODE
00128045 S2S6M-4001P12.5 SCHOTTKY DIODE D1 on SCB
INDUCTOR
00903167 N2012Z601 FERRITE BEAD
01340834 EXC ML20A390 FERRITE BEAD L1.L2 on SCB
# 01455867 ESD-SR-12 FERRITE CORE on WIRING PS-MAIN
CRYSTAL
# 01342145 MA-406 25.000MHZ X'TAL X1 on SCB
CONNECTOR
00453467 IL-FPC-25ST-N CN1 on SCB
13429314 DBLC-J25SAF-20L9F D-SUB 25PIN CN2 on SCB
WIRING
# 01453367 25X120-A6.0BBR-P1.25-HBL10 FUJI CARD CN4 on MB-CN1 on SCB
MISCELLANEOUS
40016512 T-18S 80MM for FIXING FERRITE CORE
# 01453956 VS4S-1 SHIELD SHEET
40016589 NRP-355 BLACK NYLON RIVET
PACKING
# 01453356 VS4S-1 PAD
# 01453345 VS4S-1 PACKING CASE
# 01458101 VS4S-1 OUTER PACKING CASE
MISCELLANEOUS
# 71019856 VS4S-1 MANUAL JAPANESE
# 71120301 VS4S-1 MANUAL ENGLISH
VS-840/840S
Mar, 1998
MB ===> MAIN BOARD SCB ===> SCSI BOARD
CIRCUIT DIAGRAM & BOARD (VS4S-1)
SCSI BOARD (71017390)
component side