29
DDJ-RZX
5
6
7
8
5
6
7
8
A
B
C
D
E
F
No
Yes
Operation-Related Problems
Yes
No
Identify a failure location, referring to
“6.1 SERVICE MODE.”
No
Yes
Identify a failure location, referring to
“6.1 SERVICE MODE.”
The rotary VRs, slide VRs, or pads do not
function.
Replace the inoperable operating element.
Are multiple buttons/switches
inoperable?
The buttons or slide switches do not function.
Replace the inoperable operating
element.
Replace the inoperable operating
element.
Replace the element processing
microcomputer (IC7001 or IC7005).
Are multiple buttons/switches
inoperable?
Are all operating elements
controlled with the same GRID or
SEG signal abnormal?
(See “4.4 MATRIX TABLE.”)
Replace the V+5FL High Side SW
(IC1155).
Yes
No Replacement of the Q4507.
If the defect is not still recovered,
replace IC1153.
Is the V+26FL voltage normal?
[Points to be checked:
8
]
Yes
Ch 1: V6001_ pin 27 (FL_SCLK)
Ch 2: V6001_ pin 24 (FL_DSO)
V: 2 V/div. H: 2 us/div.
Ch 1
Ch 2
6-3
6-7
Ch 1: V6001_ pin 26 (FL_LAT)
Ch 2: V6001_ pin 25 (FL_BK)
V: 2 V/div. H: 2 us/div.
Ch 1
Ch 2
6-8
6-9
