CDP-EX100, MHC-EX100AV, MHC-EX50, MHC-EX70AV, MHC-EX90 - Sony Audio Service Manual (repair manual). Page 3

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After to enter the power on, when 

p button,  TIME  button and

)  button are pressed at the same time, you will be check FL

tube.
Whenever press the above mentioned three buttons at the same
time, change to check mode of FL tube.
Under check mode of FL tube when any pressing button or turn

= AMS +  button, change to KEY check mode.

To finish KEY check mode, press the above mentioned three
buttons at the same time.

All FL tube indicator light on

A segment pattern mode 1

A segment pattern mode 2

Finish the test mode

All FL tube light on mode is kept when three buttons which is
pressed to enter all FL tube light on mode, release at the same time.
If you will be release failure them, it is moved to KEY check mode
after all FL tube light on mode.

Under KEY check mode, every time and button pressed or
 

= AMS +  button turned on, figure on  “ KEY= ” of FL tube

is increased.

Normally this set does not operate with a single unit.
When you must be mending, connect to other unit.
If the SYSTEM POWER switch of the amplifire is set to ON, the
power supply of the set is turned on.
In case of other unit is nothing, the service box (PFJ-1) and
exclusive jig (J-2501-078-A) are necessary to operate the set with
a single unit.
In case of above mentioned, press the 

p button and  TIME  button

at the same time, to enter the power on.

nn

n

(Press three buttons at the same time)

(Press three buttons at the same time)

(Press three buttons at the same time)

KEY check mode

(

Any pressing button or turn  

= AMS +  button.

9

(

(Press three buttons at the same time)

SERVICE BOX (PFJ-1)

POWER SW

FH-E939, 838, 737
CDP/TC

CN904

17P

CN902

7P

CORD WITH CONNECTOR 17P
(attached to PFJ-1)

JIG
(J-2501-078-A)

CORD WITH CONNECTOR 7P
(attached to set)

SET

CN301 7P

SYSTEM CONTROL