Teac LEDV2282FHD - Page 34

BB
N
N
N
N
Function
trouble (No disc 2)
Focus is normal ?
Check if the A、B、
C、D、E、F、si g n al
is n o r ma l f or U5
Ch e c k th e c irc u it
be t w ee n U 5
Ch e c k th e p eri p her y
ci r c ui t f or U5
Si g n al F E O is
co r r ec t
OK
YY
Y
Y
Y
Y
N
N
N
N
Y
N
Spindle on is
normal？
Check the SPDCO
driver IC is normal?
1、Checd the ciruit
between U5 and U6
2、Checd the Periphery
circuit for U6
Checd the reference
voltage is normal
for VREF1\VREF2?
1、Checd the periphery
circuit for VREF1\VREF2
2、Checd U5 and pin114 \pin115
for U6
Check the spindle
driver motor voltage
is normal?
Check the SPDCO
signal is normal?
Check the periphery
circuit for U5
Check the periphery
circuit for U6
Check the SP+\SP-
signal is correct ?
Check the circuit
between spindle
driver motor and U6
5.4.