DVH-P5900MP/XN/EW5
29
5
6
7
8
5
6
7
8
C
D
F
A
B
E
Check 2: Is VDD5 (VCC33, VCC12) power supply voltage OK?
VDD5
VCC33 (= 3.3 V )
VDD5
VCC12 (= 1.2 V )
IC1401 FLASH power supply (Data)
IC1402 FLASH power supply (Program)
IC1481 SDRAM power supply
IC1501 DVD-LSI power supply
IC1501 DVD-LSI power supply
IC1007
3.3 V output regulator
IC1008
DC/DC converter
1.2 V output
F.E. driver control system
NO.
Check point
Module No.
Specification value
Unit
1
2
3
VDD5_3 - DGND1
VCC33_3 - DGND1
VCC12_1 - DGND1
ALL
ALL
ALL
5.0 ± 0.4
3.3 ± 0.15
1.2 ± 0.12
V
V
V
Side A
Fig 2.2: VDD5, VCC33, VCC12 voltage check points
Fig 2.1: Power supply configuration
<Check> Check the voltage at the “VDD5_3, VCC33_3 and VCC12_1” test point while the power is on.
Use the “DGND1” test point at the reference.
DGND1
VCC12_1
VCC33
VDD5_3
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