Cd Test Mode Function; How To Set Cd Test Mode; Cd Automatically Adjustment Result Indication; Cd Mecha Aging Test Mode (Cr20) - Panasonic SC-TM23 Service Manual

This CD test mode is provided to check CD unit without connecting to changer loading mechanism. This mode shall operate
CD PLAY with CD unit being connected only and CD Automatic Alignment result is shown on FL display.

13.1 How to set CD test mode

13.2 CD Automatically Adjustment result
indication
Under CD test mode, pressing the numeric key '0' on the
remote controller will display the auto adjustment result.
FLOCK, TLOCK and CLVS status shall be shown as below:
During the above display, executing CD PLAY will display auto
adjustment result for CD PLAY mode.

13 CD Test Mode Function

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13.3 CD Mecha Aging Test Mode (CR20)

1. Functional summary of CD aging test mode
It is for the purpose to determine the reliability of the CD
changer.
2. To enter into CD aging test mode
a) First, enter into self-diagnostic mode (Refer to
Section 12.2. How to enter the Self-Diagnostic Function)
b) In the self-diagnostic mode, switch the SELECTOR
to
and press
. It will enter into CD aging test mode.
When in CD Aging test mode, the following operation will
begin and repeated:
1. [DISC STOCKER]
secs) TRAY
CLOSE] as one count.
2. DISC 1 DISC 2
DISC1........repeating this endlessly.
· While performing the above operation, the FL
display will show the number of its operations starting from
00001. With reference to figure as below.
· It shall move up one counter when the above
operations ends. The counter will reset to 00000 when 99999
is reached.
· To exit CD aging test mode, press
button, the tray will return to its PLAY
position and power will be off.
13.4 Micon ROM Checksum and Version
Display Mode
1. Functional Summary
Display version number and calculated checksum of the
micon software.
2. To enter into Micon ROM checksum and
Version Display Mode.
a) Enter into Self-Diagnostic Mode (Refer to
Section 12.2).
b) In the Self-Diagnostic Mode, Press
twice.
The version number and the calculated ROM Checksum of
the current software will be displayed on the FL as shown in
this example:
* Note: The Software Version No. & Micon Software
Checksum differs from set to set.
· The ROM Checksum is calculated on demand, not
hard coded.
· The ROM Checksum is calculated by talking the
arithmetic SUM of the ROM contents form the programs's
START address until the END address.
START address = [1080]H
END address = [FFFD]H
DISC LOAD TRAY OPEN (2
DISC 3 DISC 4 DISC 5