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• The checking method for main PWB is explained as shown below.
• Raise the main PWB and connect the remote controller and AC adapter.
As a result the operation can be checked. It is required to check by this method.
• Accordingly, we don't make extension jig of MD-S301.
Remove the solder joint of battery terminal.
Figure 9-1
Preparation for adjustment (use the low reflection disc on which music has been recorded)
MD adjustment needs two types of disc, namely recording disc (low reflection disc) and Playback only disc (high reflection disc).
Type
1
High reflection disc MMD-110 (TEAC TEST MD)
2
Low reflection disc
MMD-212 (TEAC TEST MD)
How to enter the TEST MODE (In STANDBY state)
Holding down the PLAY MODE button of remote control unit, press the VOL
1
Charge control "ON"
2
Indication of microcomputer version for one second [
3
: Microcomputer ROM version
f : EEPROM version
All LCD lighting for 2 seconds
4
TEST MODE STOP "_TEST_"
5
* When the
button is pressed while the indication
* If the
button is pressed while indication
to STAND-BY state.
How to leave the TEST MODE
In the TEST MODE STOP state, version indication state and full-lighting state press the
1
Initialization of normal mode setting.
2
(BASS setting, VOL setting, etc.)
EEPROM rewrite-enable area updating and adjustment error setting.
3
(all items are adjusted when power is turned on in the normal mode)
Change to standby state.
4
Preliminary automatic adjustment or EEPROM rewriting
Short-circuit TP435 and TP421.
1
Perform preliminary automatic adjustment or EEPROM rewriting.
2
Press the
button to set the standby state.
3
Release short-circuiting of TP435 and TP421.
4
ADJUSTMENT
Do not connect operation flex PWB.
Test disc
Parts No.
88GMMD-110
88GMMD-212
and
3
4
to
appears, the EEPROM rewrite-enable area is updated, and the mode is changed
3
5
– 9 –
Figure 9-2
button and
—
]
appears, the mode is changed to TEST MODE STOP state.
MD-S301/S301W
Connect the remote
controller to operate.
Connect the
AC adapter.
button of main unit.
button.
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