4-14
Samsung Electronics
Troubleshooting
4-1-5 When the button does not operate
Is the
Tact SW above the PCB
cold soldered?
Is the button pressed?
Yes
No
No
Yes
Is the Tact
SW above the PCB pressed?
(Press with finger)
Yes
No
Is there any
substance between the button
and the KNOB?
No
No
Is the
voltage of the Tact SW
above the PCB applied?
(7)
When the button does
not operate
Remove the substance and
recheck
Add solder to Pull Up
resistance and recheck
Replace the button device
and recheck
Yes
Yes
Add solder to the switch
and recheck
Are the Pull
Up resistances for
each SW cold soldered?
(Vol+, Vol-, FF, REW: R32,
DNSe: R34, START:
R35, R37)
Replace BOARD
(Requires close inspection)
Replace the corresponding
Tact SW (3404-001121)
Yes
No
Refer to wave pattern
image of Fig. 4-8.
Содержание YEPP YP-S2
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