Service manual

CASEWORK / ACCESSORY PARTS LIST
1540/1541
TOP CASE (IVORY)
C 1540014-01
1540/41
BOTTOM CASE (IVORY)
C 1540015-00
1541
TOP CASE (BROWN)
C 1540014-03
1541
BOTTOM CASE (IVORY)
1540015-03
SHIELD COVER
1540013-03
LED ASSEMBLY
C 1540013
SELF ADHESIVE FOOT
C 950150-02
1540 NAMEPLATE
C 1540016-02
1541 NAMEPLATE
C 1540052-00
POWER CORD ASSEMBLY
C 903508-04
6 PIN DIN CABLE
C 1515001-01
USER'S MANUAL
C 1540031-03
DEMO DISKETTE
C 1540024-01
1541 MODEL IDENTIFICATION
PCB Assy # 1540008-01
• Schematic # 1540001
• Original "Long" Board
• Has 4 discreet 2114 RAMs
• ALPS Drive only
PCB Assy # 1540048
• Schematic # 1540049
• Referred to as the CR board
• Changed to 2048 x 8 bit RAM pkg.
• A 40 pin Gate Array is used
• Alps Drive (-01)
• Newtronics Drive (-03)
PCB Assy # 250442-01
• Schematic # 251748
• Termed the 1541 A
• Just one jumper change to accommodate both types
of drive
PCB Assy # 250446-01
• Schematic # 251748 (See Notes)
• Termed the 1541 A-2
• Just one jumper change to accommodate both types
of drive
NOTE:
The simplest way to identify which drive you have is by door assembly. Alps is made with a
"push down" door and Newtronics has a "flipper" type door.