Diagnosis And Repair Flowchart - Philips BDP9000 Service Manual

6.12. Flowchart 11: BD

Diagnosis and Repair Flowchart

BD
TS Clock, data
No
and SYNC output from U1 ?
(EL6, R342~344, R348)
Yes
Clock, data and
No
SYNC output from U20 ?
(RP30, RP31, R518)
Yes
No
Clock outputs from U42
pin4 ?
Yes
No
SYNC outputs from
U702 pin8,9 ?
Yes
Clock, data and
No
SYNC output from U1 ?
(EL1, VRN1~6, VR30,31)
Yes
NO LOGO
Check U1 power input and Memory
interface
Check U30 power input and Memory
interface
Check U42 power input and
selection signal (pin6; ÔLowÕ)
Check U702 power, Clock (pin43) and
SYNC(pin14,15) input
U1 soldering error
Figure 6.12-1
BDP9000 6. EN 25