Trouble Diagnosis Fl Owchart - Hitachi DZ-GX5020A K Service Manual

Troubleshooting > Trouble Diagnosis
4-5-1 Trouble diagnosis fl owchart
Interpreting the trouble diagnosis fl owchart:
1) If removing any component is stated in the fl owchart, remove that component, referring to "5.
Disassembly and Reassembly".
2) If "Solder a lead wire to check point" is stated, solder a lead wire of approx. 10 cm according to
the list of check point: Be sure to remove the lead wire after trouble diagnosis is fi nished.
3) If "Set to service position (A) or (B)" is given in the fl owchart, set the DVD video camera/recorder
to the appropriate service position, referring to "4-5-2 Reassembly to enable service position".
Power does not turn on.
Are any of fuses
F7000 - F7004
blown?
Set to service position (A)
and connect the AC
adapter/chager.
Set the power switch to
Movie position and return
to OFF position.
Reset the Movie position.
No
TL7039: 0V
Yes
Yes
Is fuse F7000
blown?
No
Yes
Is fuse F7003
blown?
No
Are any of fuses
Yes
F7001 and F7002
blown?
No
Replace the MAN circuit
board.
List of check points
Circuit board
Symptom
(side)
TL7039 MAN (B)
F7000 MAN (B)
F7001 MAN (B)
F7002 MAN (B)
F7003 MAN (B)
F7004 MAN (B)
Power switch faulty.
Replace the rear case.
Replace the DVD drive
unit and F7000.
Replace the DVD drive
unit and F7003.
1
No improvement
Replace the DVD drive
unit.
Lead wire
Location on
soldered
circuit board
or not
6E Need not
7E Need not
7E Need not
7E Need not
7F Need not
7F Need not
1
After replacing the fuse, supply
power with no GSL2-L/GSL3-L
or AVJ2-L/AVJ3-L circuit board
connected.
Are any of fuses
F7001 and F7002
blown?
No
After replacing the fuse,
connect the GSL2-L/
GSL3-L circuit board, and
(*1)
supply power.
Are any of fuses
F7001 and F7002
blown?
No
AVJ2-L/AVJ3-L or
FRT2-L/FRT3-L
circuit faulty
4 - 22
Yes
Replace the MAN circuit
board.
*1: Do not connect the
AVJ2-L/AVJ3-L circuit board.
Yes
GSL2-L/GSL3-L
circuit faulty