Aiwa xc-rw700 Service Manual page 88

TROUBLESHOOTING - 25/26
QQ
3 7 63 1515 0
Execute E. LD On of How to
use Test Tool(Dragon) : CD-RW
Recording Mode
IC601 Pin 33(CDR/RW)= L ?
IC601 Pin 34(CDR/R/W)= H ?
IC601 Pin 27(WGATE)= H ?
IC401 Pin 50(WLDON)= H ?
30(EFM2), 42(RESAMP1), 2(RESAMP2),
41(ROPC1) pulse signals?
TE
L 13942296513
IC401 pin 38(WFPDSH),
39(RFPDSH),40(WBLSH),
41(SPDSH), 42(MPDSH)
IC401 pin30(ODON)
41(W/XR) pulse signals?
Dragon : Execute LD off
www
.
http://www.xiaoyu163.com
K
YES
YES
YES
YES
Are
IC601 pin29(EFM1),
YES
Are
pulse signals?
YES
Are
YES
Normal
x ao
y
i
http://www.xiaoyu163.com
8
the connection of IC701 pin 20.
NO Check
Check and replace the IC701.
Check the connection of IC701 pin 7.
NO
Check and replace the IC701.
Check the connection of IC201 pin 166.
NO
Check and replace the IC201.
the connection of IC601 pin 13.
NO Check
Check and replace the IC601.
NO Check the connection lines of IC201.
Check and replace the IC201.
Q Q
3 6 7 1 3
Check the connection lines of IC601.
NO
Check and replace the IC601.
Check the connection lines of
NO
IC601 pin 21,18.
Check and replace the IC601.
Dragon : Execute LD Off
u163
.
-88-
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9