Yamaha RDX-E600MK2 - Page 13

DVD-E600MK2
13
DVD-E600MK2
B
C
Is signal
STBY (Pin 1 of MM1646)
high level ?
Check the STBY circuit
Is signal FMO
(Pin 5 of MM1646) more
than 1.4V ?
Are signals SL+
(Pin 11 of MM1646) & SL-
(Pin 12 of MM1646)
correct ?
Check the copper trace or cable
connected to the DVD
mechanism
Check the FMO circuit
No
No
Ye s
No
Ye s
Ye s
No
Ye s
Does
Optical Pick Up move to find
a disc ?
Has FOO
(Pin 3 of MM1646)
any signal?
1. Check the signal from
MT1389 to MM1646
2. Maybe MM1389 is not
working
Are signals F+
(Pin 14 of MM1646) & F-
(Pin 13 of MM1646)
correct ?
Are signals LDO1
(Pin 23 of MT1389) & LDO2
(Pin 22 of MT1389)
correct ?
Check the peripheral circuit of
MM1646
Check MM1646 and
peripheral circuit
Check the cable and circuit
between the DVD mechanism
and MM1646
No
No
Ye s
Ye s
No
Ye s
Does sled
automatically move to inside
when it is outside ?
When read
disc, is Laser on OK ?
No
Is voltage
of +L_V33 OK ?
Check connection circuit of
the DVD mechanism
Optical Pick Up may be
damaged
Check peripheral circuit of
MT1389
Check peripheral circuit of
two transistors (Ref 7106
& 7107)
Check peripheral circuit of
two transistors (Ref 7106
& 7107)
No
No
Ye s
Ye s
Is a disc loaded ?
Ye s
Laser off
No
Ye s
MONO Board
Board Ref Name
MONO 7111 MM1646
MONO 7112 MT1389