CDP-CE105 - Sony Audio Service Manual (repair manual). Page 8

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The following checks can be performed in the AF mode, which is
set by connecting the test point (AFJ) terminal on DISPLAY
board to the Ground and turning on the power.

After all segments light up, when the  

≠0 button is pressed,

the following will be displayed. (Partial lighting 1)

The following operations are performed in the ADJ mode, which
is set by connecting the test point  (ADJ) terminal to the Ground and
turning on the power.

• Servo related manual operations and measurement can be

performed.
(For details of operations, refer to Table of Key Operations in ADJ
Mode.)

The functions of the number buttons are shown in the following
table.

Function

15

16

17

18

19

20

S curve check (in stop mode)

Tracking servo, sled servo off

Tracking servo, sled servo on

E-F balance indication

E-F balance indicati down

E-F balance indication up

Button

[ DISPLAY BOARD ] — Conductor Side —

(Partial lighting 1)

When the 

)± button is pressed, the following will be dis-

played. (partial lighting 2)

(Partial lighting 2)

When the 

p button is pressed, all will light up again.

All buttons have corresponding button numbers. When a button
is pressed, the counter will count up and display the button’s num-
ber. However, the counter will only count to “14”. It will not count
for buttons already pressed once, but will display the button’s num-
ber.

Â

Â

Display of button
number

Display of counting

DISC 4

DISC 5

CONTINUE

SHUFFLE

PROGRAM

REPEAT

DISC SKIP

07

All lit

Partial lighting 1

Partial lighting 2

08

09

10

Button No.

Displayed

Button No.

Displayed

· P

p

≠ 0

) ±

DISC 1

DISC 2

DISC 3

18

17

13

12

11

19

20

Button

Button

IC401

R404

R405

TP

AFJ

TP

ADJ