JVC MC-8100U, Service Manual, Page: 12 / 100

8
Names and Functions of Parts
The internal layout of the magazine and the numbers assigned to the magazines, trays and discs are as shown below.
Magazine number ...... This is the number assigned to each of the 2 sets of magazines. The error message displayed
when a magazine is inserted incompletely refers to the magazine number.( A P.24)
Tray number ............... This is the 2-digit number assigned to each of the 50 trays in each magazine. The combination of
a tray number and magazine number corresponds to a disc number. For example, disc number
070 can also be represented as the disc in tray number 20 of magazine number 2. In this way, the
disc can be located in the 20th slot from the bottom of magazine 2.
Disc number .............. This is the 3-digit number assigned serially to every disc in all magazines and trays, starting from
disc number 001 in tray 01 of magazine 1 up to disc number 100. The error messages usually refer
to the disc numbers. (
A P.27)
Interior
Drive 4
Drive 3
Drive 2
Drive 1
Changer SCSI board
SCSI connectors
SCSI-F (OUT)
SCSI-E (IN)
SCSI-D (OUT)
SCSI-C (IN)
SCSI-B (OUT)
SCSI-A (IN)
Internal SCSI cable
2-3. Magazine numbers, tray numbers, disc numbers
2-4. Internal SCSI cable
The SCSI connections inside the main unit (the Changer) are explained below:
The SCSI board which controls the changer and the drive units are daisy-chain (connected by the internal SCSI cable). This
cable is approximately 1.2 m (4.9 ft)long.
2
50
41
40
31
30
21
20
11
10
01
Magazine No. : 2
Tray No. : 20
Disc No. : 070
Tray No.
2
1
050
001
100
051
Disc No.
Magazine No.
●
Terminate the physical end of the SCSI bus. When using the terminator provided with one of the installed drives, read
the relevant drive instruction manual before termination.
●
In order to improve the communications stability via the SCSI bus, it is recommended to use an external active terminator.