5. MCU
No. Content
A MCU

A. MCU disassembly

Note: When replacing the MCU PWB, be sure to replace the
EEPROM of the MCU PWB to be replaced.
6. Optical frame unit
No. Content
A Optical frame unit

A. Optical frame unit

Installation: Install the optical unit in the sequence shown above.
7. LSU
No. Content
A LSU unit

A. LSU unit

(4)(4)(5)(B )(A )(D )(C )(C )(8)(6)(6)(7)(7)(1)(1)(2)
(1)
(1)
(1)
(1)

(2)

(1)

(2)

(3)

(1)
(2)
(1)
(1)
(3)
(4)
AR-160/161 FM/E [12] DISASSEMBLY AND ASSEMBLY 10/16/1998
AR-161
12 – 6