Service manual

- CHECK THE SOLDERING OF OUTER SPEAKER CABLES.
- CHANGE SPEKAER IC U6(LA4425) OF V-896.
> BUTTON SOUND DEFECTS
- CHANGE R51 OF V-891
- C1 OF V-896 IS SLIGHTLY BROKEN
- RESOLDER U6 OF Y-896
 TX, RX DEFECTS
- WHEN TX IS ALWAYS AT LOW(LO) POWER, EVEN IF HIGH(HI) POWER IS
SELECTED
- CHECK ANTENNA & ANTENNA CABLE. IF ANTENNA & ANTENNA CABLE
HAVE DEFECTS, ALARM SOUNDS & Tx OUTPUT IS AUTOMATICALLY
CHANGED TO 1W. SO, CHECK ANTENNA & ANTENNA CABLE.
 Tx OUTPUT DEFECTS (IT BECOMES RESET, IF KEY IS CAUGHT.)
- IN CASE OF Tx OUTPUT IC DEFECTS, CHANGE U8 OUTPUT IC RA35H1516M
AT V-896PCB
- CHECK THE DAMAGES OF R66,R67,L14,U8,L3,D9,R161,Q20,D9 AT V-896 &
CHANGE.
 Tx, OUTPUT & OVER CURRENT
- READJUST OUTPUT TO VR2 AT V-896.
- CHECK THE DAMAGES OF VR2,D7,L3,D9,L14,R66 AT V-896 & CHANGE.
 Rx DEFECTS
- CHECK THE DAMAGES OF D7,L3 AT V-896 & CHANGE.
 DSC RX DEFECTS
- CONNECTION ERROR OF CN4 OF V-894 & CHANGE Q5,U2.
- CHANGE U12 , X2 OF V-895
 SQUELCH
- CHANGE U2,Q5 OF V-896
- RE ADJUST VR1 OF V-896
- CHANGE DAMAGED FL7 OF V-895