Test Mode - Sony ICF-CD513 Service Manual

4-1. LCD TEST MODE
[Setting the Test Mode]
• Turn the power on while pressing
ON/OFF]
buttons simultaneously.
[Operation of Test Mode]
1. When LCD test mode becomes active, the microcomputer ver-
sion number is displayed on the LCD.
2. Press the Z button, and all segments of LCD will turn on.
LCD display
RADIO
FM1
FM2
AM
PM
3. Press each button, and the corresponding segment will turn
off. Relation between buttons and corresponding segments is
as follows.
Name of Buttons
Z
TRACK
u CD N
[BAND]
RADIO, FM1, FM2,.(POINT)
[OFF]
– .
+ >
[CD PLAY MODE]
REP 1, ALL, SHUFFLE
[CLOCK]
AM, PM, :(COLON)
[D.S.T.]
[1]
[2]
[3]
[4]
[5]
[ALARM]
[ALARM ON/OFF]
Note: The buttons may be pressed in random order.
[ALARM ON/OFF]
4. Finally, press the
the LCD test mode. However, the LCD test mode does not
release if even one button has not been pressed yet whatever
[ALARM ON/OFF]
you pressed the
SECTION 4

TEST MODE

[ALARM
u , + > and
SHUFFL
CD
REP 1 ALL
TRACK
Segment (Display)
,
button to release from
button.
4-2. CD TEST-1 (AUTO) MODE
[Setting the Test Mode]
• Short the solder bridge of BP404 on the MAIN board (connect
IC401 tl pin and ground) and turn the power on. (See page 10)
[Operation of Test Mode]
1. When the CD test-1 mode becomes active, the disc table opens.
2. Insert the CD test disc YEDS-18. (Parts No. 3-702-101-01)
3. Press the u button, and the focus search will repeat until
the focus is OK.
4. When the focus is OK, auto adjustment is executed and at the
completion, the rough servo function turns on and the adjusted
value is displayed on the LCD.
LCD display
F-E balance
adjusted value
5. The optical pick-up will move inward if the
pressed, or outward if the
[BAND]
6. Press the
turn on, and if the data are read in, the mute turns off.
7. With the spindle/tracking servo turned on, pressing respective
buttons causes the operation to be performed as follows.
Name of Buttons
[1]
[2]
[3]
[4]
[5]
[BAND]
8. After setting, press the
track jump.
9. When the CD test-1 mode becomes active, press the
and the disc table will open.
10. With the rough servo or spindle/tracking servo turned on, press
[OFF]
the button and the CD will stop, and then press the
button and the operation will repeat, starting from focus search.
11. With the rough servo or spindle/tracking servo turned on, press
the button and the optical pick-up will jump to the second
u
music and the set will release from the CD test-1 mode.
– 9 –
Tracking gain
Focus bias
adjusted value
adjusted value
– .
button is pressed.
+ >
button, and the spindle/tracking servo will
Operation
1 track jump setting
10 track jump setting
100 track jump setting
Tracking gain up
Returns to auto adjustment mode
Rough servo function turns on
– . or + > button to start the
button is
button
Z
u