K800 - K810
1202-3085 rev. 2
TROUBLESHOOTER
TROU
B
L
E
S
H
O
OTE
R
Test the diode V2500.
MP 23 MP22
Connect the Red probe onto
MP 44
or Ground.
Connect Black probe onto
MP 22
and
MP 23
.
If the measurement are equal to the reference sheet,
the diode V2500 is working properly.
22
23
MP
0.6
0.6
Volt
Tolerance up to 20 %
ReplaceV2500 if the measurements are not equal to the reference sheet.
Test the protection diodes V2510 to V2514.
Connect the Black probe onto
MP 44
or Ground.
Connect the Red probe onto MP 1 to MP 120.
2
82
10
120
4
117
MP
1.2-OL
1.2-OL
1.2-OL
1.2-OL
1.2-OL
1.2-OL
Volt
V2510
V2510
V2511
V2511
V2512
V2512
83
1
47
19
MP
1.2-OL
1.2-OL
1.2-OL
1.2-OL
Volt
V2513
V2513
V2514
V2514
If the measurement are equal to the reference sheet,
the diode V2511,V2511,V2512,V2513 and V2514 is not short circuit.
Repair action.
SL 5:Replace the faulty diode if the measurement is
not
equal to the reference sheet.
At very old product the diode is not mounted, Z2500 EDS fi lter is mounted instead.
SL 4: scrap the phone.
Test the Diodes V2500 and V2510 to V2514
SEMC Electrical Repair Manual
61
(121)
Содержание K800
Страница 122: ...www s manuals com ...