Pioneer Elite PRO-R06U Навчальний посібник - Сторінка 43
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The image of the PC card doesn't come out
The image of the PC card
doesn't come out.
No
Has the function to which the
signal is input by the input
switch been selected?
Yes
Has the signal arrived at
IC4702?
(pin 78), (pin 80), (pin 82)
Yes
Which signal is not output,
main or sub signal?
Main signal
Is a signal output from
IC4702?
(pin 41), (pin 43), (pin 45)
Yes
Has the signal arrived at
IC6201?
(pin 43), (pin 48), (pin 54)
Yes
Is the communication
between each IC on the MR
MAIN Assy and the
microcomputer normal?
Yes
Has the symptom been
settled when the MR MAIN
Assy is replaced?
Yes
Finishing troubleshooting
No Select the input of
specification by the input
switch.
Check the communications
No
CN4003 and the microcomputer,
and check the communications
between CN4003 and IC4702.
It is a specification that the
Sub signal
image on the subside is not
displayed.
Check around IC4702 and
No
check the communications
between IC4702 and the
microcomputer.
Check the communication
No
between IC6201 and
IC4702.
Check around the
No
microcomputer and check
the IC that causes defective
communication.
No
The panel is defective.
43