JVC MC-8100U, Service Manual, Page: 48 / 100

MC-8100U
1
Demonstration Mode
(1) Purpose
This mode is used to perform a demonstration of the CD/DVD changer operation.
(2) Start
While pressing the “ENTER” key and the numeric key “3” simultaneously, turn the power ON.
* It is not necessary to set the discs on each tray. (A disc presence check is not performed.)
(3) Operation
Repetition of crossing operation.
Disc Access (MC-8100U: when drives 1 and 2 are connected)
• Crossing Operation
Count Access Address
0001 “100”
→
DR1
→
“100”
0002 “001”
→
DR2
→
“001”
0003 “099”
→
Mail slot
→
“099”
0004 “002”
→
DR1
→
“002”
0005 “098”
→
DR2
→
“098”
0006 “003”
→
Mail slot
→
“003”
0099 “051”
→
Mail slot
→
“051”
0100 “050”
→
DR1
→
“050”
(4) Operation Stop
When the numeric key “3” is pressed during demonstration, the operation stops after the disc being accessed is returned to the
original magazine.
(5) Operation Restart
When the “ENTER” key is pressed in the demonstration-stop mode, the operation restarts from the tray next to the one being
accessed the previous time.
2
Carrier Upper/Lower Limit Check Mode
(1) Purpose
Checks whether the tray loading/ejecting operation is possible or not at the upper and lower limits of the address slits.
(2) Start
While pressing the “ENTER” key and the numeric key “4” simultaneously, turn the power ON.
* It is not necessary to set the discs on each tray. (A disc presence check is not performed.)
(3) Operation
Accesses to the 2nd address from the top (Tray No. 49 in the magazine) and the 2nd address from the bottom (Tray No. 02 in the
magazine), drive and the mail slot in order twice for each. Searches for the lower limit at the 1st cycle and for the upper limit at the
2nd cycle as a target.
Operation Sequence (MC-7100U: When drives 1 and 2 are connected)
1) Address 99
→
Drive 1
→
Address 99 (Lower limit)
2) Address 52
→
Drive 2
→
Address 52 (Upper limit)
3) Address 49
→
Address 49 (Lower limit) (When drive 3 exists: To Drive 3)
4) Address 02
→
Address 02 (Lower limit) (When drive 4 exists: To Drive 4)
5) Address 99
→
Address 99 (Lower limit)
6) Address 52
→
Address 52 (Lower limit)
7) Address 49
→
Mail Slot
→
Address 49 (Lower limit)
8) Address 02
→
Address 02 (Lower limit) (When printer exists: To Printer)
9) Checks for upper limit for 1) to 8)
(4) LCD display in upper/lower limit check mode
R U N N I N G M O D E
4 – 0 9 9
Tray No. being accessed. However, An “END” warning
appears when finished.
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