Trouble Shooting - Samsung SCC-B2335 - Super High-Resolution WDR Day/Night Camera Service Manual

Trouble Shooting

4-1 Trouble Shooting
4-2
If the product does not turn on
Do
you connect
the product to the power supply
properly?
Yes
Is
there any
problem with the
input terminal FUSE
(F1) of the camera?
Yes
D
CN2 8 i f
Does CN2-8pin of
the power PCB output +9.6v
properly?
Yes
Does
CN2-3,4,5,6 of
the Power PCB properly
output - 12V 17V 5V 12V, +17V, +5V,
and +3.3V,
respectively?
Yes
Does
the CCD PCB
get proper input voltages of +5V,
+3.3V, +15V, and -
12V?
Yes
Does
the CCD PCB
properly output +1.2V,
+2.5V, +3.3V, +5V, +9V, +15V,
d 8 5V ( 6 8)
and -8.5V (-6.8),
respectively?
Yes
Check the camera if it works
properly
Check if the power supply adaptor
No
is properly connected to the
camera and check also the input
voltage. Check the rear indicator.
Check the POWER PCB FUSE (F1)
No
using DVM and replace it if
necessary.
Check the POWER PCB for the I/O
No
of the bus line, and replace the
PCB if necessary. (Check also the
TRANS and bus line)
Check if the POWER PCB is
properly connected to the CCD PCB,
No
d l d f ti PCB if and replace any defective
necessary. (Check U4 for the bus line and
if it work properly)
Refer to a pattern
image of Table 4-1
Check CN4 of the CCD PCB for the
connection. Check the CN4
No
connector of the CCD BOARD is
properly connected to the harness
of CN2 of the POWER PCB, and
replace it if necessary.
Check the voltage of each point
below using DVM.
-C86+: +1.2V
-C87+: +2.5V
No
-C35+: +3.3V
-C75+: +3.3V (REG)
C39+: +5V
--IC20-1pin: +9V
-IC2-1pin: +15V
-Q2-E: -8.5V(-6.8V)
Samsung Electronics