Voltages - Pioneer CDJ-350 Service Manual

1

10.10 VOLTAGES

A
H
SMPS ASSY
output level check
Point to be
Name
checked
V+7R6M
V+5EV
B
V+7R6DCDC
VFDP32
C
V-7R6A
V+7R6A
Checking the voltage levels inside the various Assys
C
MAIN ASSY
Name Point to be checked
V+5R6
V+3R3
D
V+1R2
V+3R3A
V+1R25
V+5R6M
V+3R3S
VREF1R65
V+5A
E
V-AUDIO
E
PNLB ASSY
Name Point to be checked
FL VH
FL VDD
FL F+
FL F-
F
USB VBUS
V+5SW
76
1
2
Normal voltage level
1
7.22 to 7.98 V
2
4.75 to 5.25 V
3
7.22 to 7.98 V
4
29.12 to 34.88 V
5
-7.22 to -7.98 V
6
7.22 to 7.98 V
*It is assumed that the SMPS Assy output level is normal.
Normal voltage level
7 5.53 to 5.87 V
8
3.2 to 3.4 V
9
1.19 to 1.21 V
10 3.27 to 3.33 V
11
1.24 to 1.26 V
12 5.54 to 5.66 V
13 3.27 to 3.33 V
14
1.57 to 1.73 V
15 4.95 to 5.05 V
16
7.22 to 7.98 V
*It is assumed that the SMPS Assy output level is normal.
Normal voltage level
17 28.8 to 35.2 V
18
4.5 to 5.5 V
19
5.54 to 5.66 V
20
1.98 to 2.42 V
21
4.75 to 5.25 V
4.65 to 5.35 V
22
2
3
Possible defective point
when a voltage error is generated
• SMPS Assy
• MAIN Assy
SERVO
• DRIVE Assy
• SMPS Assy
• PNLB Assy
PANEL CPU(IC501)
SW
• SMPS Assy
• MAIN Assy
MAIN CPU(IC103)
SERVO DSP(IC201)
AUDIO DSP(IC301)
• PNLB Assy
FL V501
JOG
LED
USB-A
• SMPS Assy
• PNLB Assy
FL
• SMPS Assy
• MAIN Assy
AUDIO/MUTE
• SMPS Assy
• MAIN Assy
AUDIO/MUTE
Possible defective part
IC409
IC401
IC404
R426, R427
IC402
IC403
R421, R422
IC206
IC408
IC201, IC408
IC406
SMPS Assy
Possible defective part
Q502
D522
V+5R6 power supply circuit
(periphery of IC409)
Q518, Q517
IC505, IC504
D520
CDJ-350
3
4
STANDBY mode
(while u is lit in red)
OFF
ON
OFF
OFF
OFF
OFF
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