Samsung MAX-888

6-1-3 Tuner Malfunction(FM/AM)
Main PCB
TZD1(7.5V), TZD2(5.1V)
Voltage normal?
TIC1 (LA1836)
Tuner BAND Switching ?
(pin 14)
Yes
Check the Main PCB
TZD1 (7.5V), TZD2 (5.1V)
TR38,TR53
No
Check the Main PCB
TIC2 (LC72131)
pin3,4,5,6
Check the Front PCB
UIC1 (µ-com)
No
Yes
TIC2 (LC72131)
VT Level Changeable?
(pin 20)
Check the Main PCB
TIC2 (LC72131) Oscillator
TX2 (7.2MHz)
No
Yes
TIC2 (LA1836)
If input normal ?
(pin 1,5)
Check the Main PCB
TFE1 (Front END Pack)
TL1 (MW/LW coil)
No
Yes
Check the Main PCB
FIC2 (TDA7439)
Function IC
Samsung Electronics 6-3
Troubleshooting