Tempo Zero Point Adjustment - PIONEER DJ XDJ-XZ Service Manual

1

8.4 TEMPO ZERO POINT ADJUSTMENT

A
Necessary Adjustment Points
When
Exchange the
TEMPO SLIDER VR
Jigs
B
" ≠ Precise screwdriver (small)
C
Zero Point ADJ.
Notes:
Perform the adjustment before TMP1 or 2 Assy mounting.
Repeat the adjustment until the voltage becomes 0 ±5 mV.
1 Insert the insulation sheet between TMP1 or 2 Assy and
the main unit.
D
2 Match the knob section of slide VR with
CENTER POSITION.
E
Knob section of slide VR
CENTER POSITION
F
78
1
2
Adjustment points
VR8352, VR9452
(Zero Point ADJ)
" Digital multimeter which
can be measured to 0.1mV.
" Insulation sheet (The thing
that is bigger than PCB)
TMP1 or 2
Assy
Insulation
sheet
XDJ-XZ
2
3
Adjustment and Check Points
(TMP1 or TMP2 Assy)
3 Adjust it so that turn VR8352 or VR9452, and the
voltage of the digital multimeter becomes 0 ±5 mV.
0 ±5 mV
Pin 4: ADCT
Pin 2: ADIN
VR8352 or VR9452
(ZERO POINT ADJ)
SIDE A
3
4
TEMPO knob
TMP1 or 2 ASSY
(This illust is TMP1 Assy.)
TMP_RANGE
MS_TMP
CONTACT
SIDE
1
16
GNDD
TMP_RST
GNDD_AD_DCK
V+3R3D2_AD_DCK
ZERO POINT
ADJ
ADJ
1
4