Samsung SGH-Z110V Service Manual page 33

F low Chart of Troubleshooting
4. Speaker Part (Melody)
S p ea ker d o es n o t w o rk
Y es
U 602 p in 6,28 = 2.8V?
Y es
C h ec k th e C lo c k s ig n al at
P in2 o f U 602
(19.2M H z)
Y es
U 602 p in 3 ¡Ö2.8V?
(W h enU 501 o p erate)
Y es
U 602 p in23
¡ÖB attery Vo lt ?
Y es
Is S p eaker w o rkin g ?
Y es
E N D
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N o
R es o ld er o r rep lace U 605
N o
C h eck th e clo c k g en eratio ncircu it
(relatedto U 502 an dU 602)
N o
N o
C h eck th e circu it relatedto
"A M P 1_ IN /A M P 2_ IN " s ig n al
N o
7- 6
R es o ld er U 501
C h an g e th e S p eaker