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Circuit Operation Description
6) Using ASS'Y examination system
(1) Setting
! Preadjust the output voltage to 5V when using the linear power supply.
Also, check if the output voltage is 5V when using SMPS.
@ Install the TEST PROM 256K, RST, F1, F2, and F3 on the logic main board.
To prevent misinsertion, make sure that the pin 1 of the PROM is inserted in the proper location
marked on the PCB.
# As shown in Figure 6, connect the logic main board and the JIG board for examination using the
cables connecting LX1(13P), LY1(30P), LE01, and LE02(80P).
$ Set the oscilloscope to 5ms/div, 2V/div.
Connect the probe 1 as Figure 7 shows and set it to a trigger.
30
1
1
Figure 6. Connecting between the logic main board and the JIG board for examination
5-38
LA03
CN01
31
1
F3
LD2001
F2
F1
CN05
IC2001
CN06
GND1
256k
RST
GND2
CN02
IC2017
SW2001
L
L
Y
Y
1
1
LX1
LE01
LX1
LE01
1
13
GND5
Figure 7. Connecting probe 1 of the oscilloscope
LD1
GND3
IC2010
IC2002
IC2011
GND4
IC2012
IC2003
IC2013
TP13
GND5
LE02
LE02
1
80
TP13
80
Samsung Electronics
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