- 2-12 -
TUNER PACK TROUBLESHOOTING
Check the PLL- of CE, DI, DO, CLK.
Is the normal ?
END
CE: Chip Enable
DI: Data Input(from u-com)
DO: Data Output(to u-com)
CLK: Tuner mode clock
Replace the TUNER PACK.
YES
NO
PLAY
Check the VCC supplying to IC201 pin4.
Refer to “Power Circuit
Troubleshooting”.
Check the Deck Mecha.
Replace the Deck
Mecha.
Replace the IC201.
Check the signal output of IC201 pin3, 6.
Check the “LOW” of Q201, Q251, “B”.
YES
YES
YES
NO
NO
NO