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TP 8/12/11
JVC U.S.A.
Customer Care Center 1-800-252-5722
CUSTOMER PROCEDURE
“Chk Wiring then reset unit” message scrolls on display when unit is powered ON
KD-R320J
KD-R420J
KD-R520J
KD-HDR44J
KD-BPT30J
KD-R328J
KD-R428J
KD-R528J
KD-BTP50J
KD-A525J
KD-A625J
KD-R620J
KD-R628J
KD-AHD79J
KD-HDR70J
KW-HDR720J
Cause
The wires were shorted during installation.
Cure
1.
Remove the Radio and disconnect the Harness.
2.
Verify the Units wiring and ensure there are no shorts.
Check for misconnection (for example; DC12V to Left speaker negative to
reverse signal)
Check for loose connections
Check for uncovered connections
3.
Clear the error using the procedure below.
PROCEDURE
Apply this procedure after verifying the units wiring.
It is NOT possible to clear the error message if the wiring problem has not been
corrected.
1.
Remove wiring harness from unit (remove all DC power).
2.
Simultaneously press and hold the [MENU] and [UP arrow] button.
3.
While holding [Menu] / [Up arrow] buttons, insert the unit’s wiring harness
(reapply DC power to the unit).
a.
“DC ERR” will be displayed.
b.
If “Chk wiring…” message reappear, retry steps 1-3 again.
