Pioneer PDP-R03U, Service Manual

Page: 111 / 142

PDP-R03U
111
5 6 7 8
5 6
7
8
C
D
F
A
B
E
No picture
NO
YES
No
TV
, video and component picture
Is input at pins (124), (133) and (139) of IC4 nor
mal?
Chec
k CN6 and its
per
ipher
al circuits
.
NO
YES
Are TL207, TL208
and
TL211 nor
mal?
Chec
k CN6 and its
per
ipher
al circuits
.
NO
YES
Is digital output section of IC4 nor
mal?
Chec
k IC4 and its
per
ipher
al circuits
.
NO
YES
Is digital output section of IC310 nor
mal?
Chec
k IC310 and its
per
ipher
al circuits
.
NO
YES
Is digital output of IC25 nor
mal?
Chec
k IC25 and its
per
ipher
al circuits
.
No PC picture
YES
Is signal at pins (21), (22), (24), (25), (27), (28), (30) and (31) of IC413? (The signal is of high frequency (a little less than 1GHz).
P
a
y due attention to it dur
ing obser
v
ation.)
Connecting cab
le or
monitor is prob
lem.
NO
PC I/F Unit (CPCi- 0056CE) inter
nal prob
lem
is lik
ely
.
No MAIN picture on single screen and dual screen.
No SUB picture on dual screen
NO
YES
Is input at pins (126), (136) and (141) of IC4 nor
mal?
Chec
k CN8 and its
per
ipher
al circuits
.
NO
YES
Is digital output section of IC4 nor
mal?
Chec
k IC4 and its
per
ipher
al circuits
.
NO
YES
Is digital output of IC25 nor
mal?
Chec
k IC25 and its
per
ipher
al circuits
.