1-8-1
E61M7TR
TROUBLESHOOTING
FLOW CHART NO.2
The fuse blows out.
After servicing, replace the fuse.
Check the presence that the primary component
is leaking or shorted and service it if defective.
Check the presence that the rectifying diode or
circuit is shorted in each rectifying circuit of
secondary side, and service it if defective.
FLOW CHART NO.3
When the output voltage fluctuates.
Yes
No
FLOW CHART NO.4
When buzz sound can be heard in the vicinity of power circuit.
Check if there is any short-circuit on the rectifying diode and the circuit in each rectifying circuit of the secondary side,
and service it if defective. (D1003, D1006, D1008, D1016, D1030, IC1003 , Q1002, Q1004, Q1005, Q1011, Q1014, Q1020)
Does the photo coupler circuit on the secondary
side operate normally?
Check IC1001, D1012, D1024 and their periphery,
and service it if defective.
Check IC1001, IC1006, D1048 and their
periphery, and service it if defective.
FLOW CHART NO.1
The power cannot be turned on.
Is the fuse normal?
Is normal state restored when once unplugged
power cord is plugged again after several seconds?
Is the EV +3.3V line voltage normal?
See FLOW CHART No.2 <The fuse blows out.>
Check if there is any leak or short-circuiting on the
primary circuit component, and service it if defective.
(Q1003, Q1008, Q1001, T1001, D1001, D1002,
D1004, D1005, D1011, C1003, C1005)
Check each rectifying circuit of the secondary circuit
and service it if defective.
Yes
Yes
Yes
No
No
No
FLOW CHART NO.6
P-ON+5V is not outputted. (EV+11V is outputted normally.)
Is the "H" signal inputted into the base of Q1004?
Replace Q1004.
Check R1068 and D1046, and service it if defective.
Yes
No
FLOW CHART NO.5
P-ON+11V (EV+11V) is not outputted.
Is 11V voltage supplied to the emitter of Q1002?
Is the voltage of base on Q1002 lower than the
voltage of emitter on Q1002 when turning the power on?
Replace Q1002.
Check D1030, D1048, C1035, C1048, L1009 and
the periphery circuit, and service it if defective.
Check Q1016 and PWRCON line and service it if
defective.
Yes
Yes
No
No
Summary of Contents for DV6600/N1B
Page 37: ...1 10 4 E61M7SCD2 DVD Main 2 7 Schematic Diagram ...
Page 39: ...1 10 6 E61M7SCD3 DVD Main 3 7 Schematic Diagram ...
Page 40: ...1 10 7 DVD Main 4 7 Schematic Diagram E61M7SCD4 ...
Page 41: ...1 10 8 DVD Main 5 7 Schematic Diagram E61M7SCD5 ...
Page 42: ...1 10 9 DVD Main 6 7 Schematic Diagram E61M7SCD6 ...
Page 43: ...1 10 10 DVD Main 7 7 Schematic Diagram E61M7SCD7 ...
Page 45: ...1 10 12 E61M7SCAV2 AV 2 3 Schematic Diagram ...
Page 47: ...1 10 14 5 1CH AMP Schematic Diagram E61M7SCA ...
Page 50: ...1 10 17 FUNCTION CBA Top View FUNCTION CBA Bottom View BE6182F01013D ...
Page 51: ...1 10 18 LED CBA Top View LED CBA Bottom View BE6182F01013E ...
Page 52: ...1 10 19 BE5932F01011 5 1CH AMP CBA Top View 5 1CH AMP CBA Bottom View ...
Page 58: ...1 15 2 E61M7PEX Packing X10 X13 X2 X4 S2 S2 S4 Unit S1 X1 X5 X6 A22 A22 ...
