OTARI MX-5050 - Speed Conversion (BIII-2); Equalization Change

MX-5050 Operation and Maintenance Manual
May 1992
Section 2 Installation
2 - 15
Table 2-7
Fuse Specifications
Number Rating Otari No. Used For
Current Voltage Size Carry
F1 2A 125V 5.2 x 20mm 110% FH9-030 Power Supply
F2 2A 125V 5.2 x 20mm 110% FH7F020 Reel Motor
F3 2A 125V 5.2 x 20mm 110% FH9-030 –18V (Slow Blow)
F4 2A 125V 5.2 x 20mm 110% FH9-030 +18V (Slow Blow)
F5 3A 125V 5.2 x 20mm 110% FH7F030 +5V
F6 4A 125V 5.2 x 20mm 110% FH7F040 +24V
F7 5A 125V 5.2 x 20mm 110% FH7F050 Capstan Motor
F8 1A 125V 5.2 x 20mm 110% FH7F010 VU Lamp
2.7 Speed Conversion (BIII-2)
Normally, the MX-5050 BIII-2 is shipped from the factory with set at High
Speed (15/7.5 ips). If you want to change this to Low Speed (7.5/3.75 ips),
follow the steps below.
1. Remove the bottom panel to access the CONTROL PCB. Rotate the CONTROL
PCB.
2. The Speed Version Select SW1-1 is located on the CONTROL PCB. Change
the switch position to the LOW position. (Refer to § 2.3.)
3. Replace the bottom panel on the machine.
4. Make all necessary adjustments (Reproduce EQ, SRL, Bias Record EQ,
Record Level) referring to the corresponding explanation in Section 7.
NOTE: The MX-5050 MKIV-2 cannot be changed to Low Speed.
2.8 Equalization Change
The Equalization type is set to the customer's specifications at the factory.
The setting can be changed between NAB and IEC by sliding the EQUALIZER
select switch on the rear panel (Refer to § 2.3). If the setting is changed,
equalizer adjustments (§ 7.3.3 and 7.4.5) must be made.