Servicing Notes; Check Mode Of Fluorescent Indicator Tube, Buttons, And Led's; Check Mode Of Amplifier Section; Extension Cable - Sony HMD-M11 Service Manual

1-1. CHECK MODE OF FLUORESCENT INDICATOR
TUBE, BUTTONS, AND LED'S
Setting the Check Mode:
This mode is activated if pressing = 0 button and DISPLAY
button simultaneously with the power supply to the set in OFF
(standby) status. When this mode started, the fluorescent indica-
tor tube and LEDs are all turned on.
1-1-1. Check Mode of Fluorescent Indicator Tube
The display changes in three ways each time the YES button is
pressed.
When POWER button is pressed, the set becomes ready for nor-
mal operation.
All lights Bride-1
up indicate
1-1-2. Check Mode of Buttons
In the fluorescent indicator tube check mode, press the NO but-
ton, and the buttons check mode is activated.
When this mode started, the display will be as shown below.
MDK= 0
CDK=OK
At this display, each time respective buttons (total 16 pcs.) are
pressed, MDK values on the display are counted up, and
"MDK=OK" is displayed when all buttons are pressed. If any
button is pressed when "MDK=OK", the set becomes ready for
normal operation.
1-1-3. Check Mode of LED's
In the fluorescent indicator tube check mode, each time
= 0 button or ) + button is pressed, each LED turns
on as shown below.
PLAY
All lights PAUSE
(green)
up (amber)
When POWER button is pressed, the set becomes ready for nor-
mal operation.
SECTION 1

SERVICING NOTES

1-2. CHECK MODE OF AMPLIFIER SECTION

Setting the Check Mode:
This mode is activated if pressing FUNCTION button
and YES button simultaneously with the power supply to the set
in ON status. When this mode started, the display will be as shown
below.
Bride-2
indicate
Releasing the Check Mode:
When POWER button is pressed, the set becomes ready for nor-
mal operation.

1-3. EXTENSION CABLE

In performing a repair of this set, etc., connect the CN103 on BD
board with the CN100 on DIGITAL board using as extension cable
(Parts No.: J-2501-094-A).
CD
REC
SYNC

1-4. AGING MODE

For the AGING MODE, refer to the CMT-M11C service manual
(Parts No.: 9-960-794-11).
– 5 –
TA Test
US, Canadian models: U/CA
AEP, UK models: AE4
E, Hong Kong, Singapore, Malaysia models: E
Table 1-1. Operation of Check Mode
Button Display
VOL + Volume 0dB
VOL – Volume — — dB
)+
10 RIGHT
=0
10 LEFT
Destination
p
indication
– BD board (Conductor side) –
CN100
– DIGITAL board (Component side) –
Deffers according to
the destination.
Operation
Volume control maximum
Volume control minimum
Balance control (right side)
maximum
Balance control (left side)
maximum
Volume control maximum,
balance control center
CN103
Extension cable (J-2501-094-A)