DV-L80 (serv.man3). Section 1-8 - Sharp DVD Service Manual (repair manual). Page 15

 Test Mode

A power source is put, and a playback key and a stop key are pushed after the "NO DISC" display at the same
time. (It keeps pushing it for about three seconds.)

ROM Renewal Mode

A power source is put with pushing a playback key and a halt key at the same time.
(It keeps pushing it for about three seconds.)

The preparation date display of the program
10000000  ********
                                                   (Last updata)

Model number display
10000001  00007604
                                               (Model number)

The version display of the program
10000002  ********
                                                 (Program ver.)

Reagion number display
10000003  00000008
                          (Region code:Binary display)

Color bar display

20000001  00000000 (FIP)

Micro-code number display
10000004  ********
                                              (Microcode ver.)

The preparation date display of the servo program
10000005  ********
                                                     (Servo ver.)

Servo DSP microcode version display
10000006  ********

It is returned to the test mode initial image plane.

<The "2" key of the remote controller is pushed.>

<The "3" key of the remote controller is pushed.>

<The "1" key of the remote controller is pushed.>

Test mode initial image plane

F0000000  00000000

The "PALY" key of the remote controller is pushed.

The "PALY" key of the remote controller is pushed.

The "PALY" key of the remote controller is pushed.

The "PALY" key of the remote controller is pushed.

The "PALY" key of the remote controller is pushed.

The "PALY" key of the remote controller is pushed.

The "PALY" key of the remote controller is pushed.

The "PALY" key of the remote controller is pushed.

There is no copy guard signal.
What is the symptom at the time of dubbing to VTR?

Color bar display

20000002  00000000 (FIP)

The "PALY" key of the remote controller is pushed.

The "PALY" key of the remote controller is pushed.

AGC only
What is the symptom at the time of dubbing to VTR?

Color bar display

20000003  00000000 (FIP)

The "PALY" key of the remote controller is pushed.

AGC+Color stripe1
What is the symptom at the time of dubbing to VTR?

AGC+Color stripe2
What is the symptom at the time of dubbing to VTR?

Color bar display

20000003  00000000 (FIP)

To (1)

Micro-code is the thing of the process 
program of the system integrated circuit.