Maintenance Flow Chart - Philips DVD625 Service Manual

EN 20 5. DVD625 /0x1
5.2

Maintenance Flow Chart

Start
Confirm if AC is compatible with
the DVD-Player require
Yes
Power on
Voltages
in all pins of item 1601 are
normal?
Yes
Are
DV33 and V25
normal?
Yes
Display LOGO?
Yes
A
Diagnostic Software, Trouble Shooting and Test Instructions
Replace extainal
No PSU or a
transform need
1. Check Cable
No
2. Replace PSU if Mono PWB is not short, otherwise find out
where short first
Check regulator LD1117 (item7601) and diode 1N4002 (item6604)
No
and peripheral circuit
Is
No
Main Clock
normal?
Y
Is
reset signal
normal?
Y
Is
signal on FLASHl
normal?
Y
Is
signal on SDRAM
normal?
Y
Is input
signal of TV encoder
normal?
Y
Is output
signal of TV encoder
normal?
Y
Check the circuit of video
filter, amplifying and cables
with TV
N
1. Check oscillation circiut.
N
1. Check reset circiut.
N
Check peripheral circiut of FLASH
N
Check peripheral circiut of SDRAM
N Check peripheral circiut of TV
Encoder
Check peripheral circiut of TV
N
Encoder
CL 36532022_005.eps
190303