Samsung MM-77 Service Manual page 24

6-1-4. FLT section
Check if the connector Xx
eae
Insert connector
2
is inserted correctly?
>
accurately
Check AC voltage of
P/T secondary
Check Voltage (AC 4.2V)
Xx
Between both gray
between both ends of
Between both gray
FLT(HITER)
ends: 4.2V(AC)
RD7(IN 4002) RZD2
(27V ZENER)
Check voltage of UIC
1(MICOM) Pin no.48(-27V)
-Check voltage of P/T
secondary(Brown)?
Replace UIC 1(MICOM)
MM-77
— 23 —