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Troubleshooting > Trouble Diagnosis
No improvement
DZ-BX37E/BX35E
/MV4000E
Yes
No
Yes
No
Yes
No
No
Yes
No
Yes
No
Yes
Yes
No
Set to service position (A).
Remove the GSL-L
circuit board and solder
a lead wire to check
points
List of check points
Symptom
Circuit board
(side)
Location on
circuit board
Lead wire
soldered
or not
7C
1D
Need
1D
Need
1D
1D
2D
TL7021
MAN (B)
IC1051C-1
IC1051C-2
IC1051C-3
GSL-L (A)
IC1051C-4
IC1051C-7
IC1051C-8
IC1051C-9
IC1051C-12
7C
TL7028
MAN (B)
2C
2C
1C
Need
Need
Need
Need
Need
Need
Need not
Need not
TL7028 (C5V): 5V DC
TL7021 (C3V): 3V DC
Refer to “Power does not
turn on.”
Refer to “Power does not
turn on.”
IC1051C-8
(C15/C12V):
15V DC
Refer to “Power does not
turn on.”
IC1051C-12 (H1),
IC1051C-13 (H2):
Pulses
Replace the IC2001C.
IC1051C-9 (RG):
Pulse
IC1051C-1 to 4
(V1 to V4):
Pulses
Replace the IC2003C.
6
IC1051C-7 (CCD OUT):
CCD output signals
6
Replace the IC1051C
(CCD image sensor).
Replace the GSL-L
circuit board.
Replace the MAN
circuit board.
GSL-L (A)
GSL-L (A)
GSL-L (A)
GSL-L (A)
GSL-L (A)
GSL-L (A)
GSL-L (A)
5
Replace the IC2001C.
IC1051C-13
1C
Need
GSL-L (A)
0
15
-7.5
0
-7.5
V1 & V3 pulses
V2 & V4 pulses
H1 & H2 pulses
0
RG pulse
3.3
