Pioneer CDJ-2000, Service Manual

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29
CDJ-2000
5 6 7 8
5 6 7 8
A
B
C
D
E
F
[1] Failure in Startup
[1-1] N o power
[2] Display (JOG FL/LED)
[2-1] The JOG FL does not light.
The JOG FL and the LEDs are controlled by the PA N EL CPU (IC8005).
[1-2] Indications on the LCD
10.9 TFTB
ASSY(1/2)
10.12
JFLB ASSY
10.12
JFLB ASSY
10.2 SR V A(2/2),
SPC N , I N SW and
SLMB ASSYS
10.1 SR V A
ASSY(1/2)
10.2 SR V A(2/2),
SPC N , I N SW and
SLMB ASSYS
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
1
The SW power-
supply does not
function properly.
SR V A Assy Check V +12_EUP.
If V +12_EUP (C N 7301 pin_1) is not output, the
SW power-supply is defective. Replace it.
2
The power-supply
does not function
properly.
Related point Check V +3R3_P N L.
The regulator IC (IC7010) may be loosely connec-
ted with its peripheral devices or a part may be
defective. Correct loose connection.
If the symptom persists, replace the defective part.
3
The EUP control
unit does not
function properly.
SR V A Assy Check the EUP_CO N T signal.
If the signal is L, check the output of the SW power-
supply IC. If
V +12(C N 7301 pin_2) is not output, the
SW power-supply IC is defective. Replace it.
If the signal is H, see [10] EUP Mode.
4
V arious power-
supply ICs do
not function
properly.
SR V A Assy,
MAI N Assy
Check each power-supply IC.
The regulator IC and its peripheral devices for each
power supply may be loosely connected or a part
may be defective. Correct loose connection.
If the symptom persists, replace the defective part.
Check the indications on the LCD.
N othing is displayed on the LCD. (Black screen)
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
1
Power supply for
the backlight is
not input properly.
TFTB Assy
Check the connection on the V +12_T line
and check the mounting status of the
peripheral parts of the backlight power
circuit.
The V +12_T line may be loosely connected or the
backlight power circuit may be defective.
Correct loose connection.
If the symptom persists, replace the defective part.
10.9, 10.10
TFTB ASSY
Indications on the LCD are in white screen.
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
1
The TFT_CPU
does not function
properly.
TFTB Assy
Check the power supply and signals around
the TFT_CPU.
•
V +3R3T_BF, V +1R2_BF
• RESET_TFT
• BUSCLK (Approx. 98 MHz)
Diagnose the TFT_CPU and its peripherals,
referring to [12-5] E-7023: GUI CPU ERROR.
Startup stops with the “Pioneer” logo displayed.
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
1
Communication
between the MAI
N
CPU and TFT CPU
could not be
established.
TFTB Asssy,
MAI N Assy
Check the serial communication cable
connection between the MAI
N CPU and
TFT CPU.
Diagnose the TFT_CPU and its peripherals,
referring to [12-5] E-7023: GUI CPU ERROR.
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
1
Power is not
supplied properly.
JFLB Assy
Check the power-supply voltages ( V +3R3,
V FDP2R7_F1, V FDP2R7_F2, and V +27)
of the FL.
Each power-supply may be loosely connected or may
be defective. Correct loose connection.
If the symptom persists, replace the defective part.
2
Defective control
signal
JFLB Assy
Check that the FL control line is properly
connected in the JFLB ASSY.
• J_SCLK
• J_BK
• J_LAT
• J_DSO
Check the connection and correct loose connection.
As the JOG FL is controlled by the PA
N EL CPU,
if no signal is output, check the PA N EL CPU.
3 Defective JOG FL
If the symptom persists after the above
corrections,
Replace the JOG FL.