Error Displays; Block Diagram - Clarion DXZ745MP Service Manual

ERROR DISPLAYS

If an error occurs, one of the following displays is displayed. Take the measures described below to eliminate the problem.
Error Display
ERROR 2
CD ERROR 3
ERROR 6
AMP GUARD
ERROR 2
ERROR 3
CD
CH
ERROR 6
ERROR 2
ERROR 3
DVD
CH
ERROR 6
ERROR P
ERROR R
If an error display other than the ones described above appears, press the reset button.

BLOCK DIAGRAM

CD mechanism section: 929-0300-82
CD Mecha.
J2 10pin
IC101
DRIVER
FAN8047G3
Q1
Transistor
5V 3.3V
IC2
Regulator
3.3V 1.6V
DXZ745MP/DXZ746MP
Cause
A CD is caught inside the CD deck and is not
ejected.
A CD cannot be played due to scratches, etc.
A CD is loaded upside-down inside the CD deck
and does not play.
The speaker protection circuit is operating.
During this operation, if any volume operation is
performed, the display shows "AMP GUARD".
A CD inside the CD changer is not loaded.
A CD inside the CD changer cannot be played
due to scratches, etc.
A CD inside the CD changer cannot be played
because it is loaded upside-down.
A DISC inside the DVD changer cannot be played.
A DISC cannot be played due to scratches, etc.
A DISC inside the DVD changer cannot be
played because it is loaded upside-down.
Parental level error.
Region code error.
MP3&WMA Encoded disc/CD-DA disc
(CD-ROM ISO9660)
P/U CP-51
J1 15pin
3.3V
IC102
CD DSP
DAC
TC94A15F
(Digital servo)
(DF/DAC)
ACC8V
J3 20pin
ACC5V
This is a failure of CD deck's mechanism.
Replace with a non-scratched, non-warped disc.
Eject the disc then reload it properly.
Turn down sound volume. Function can also be
restored by turning the power off and on again.
(Speaker volume is reduced automatically when
the speaker protection circuit operates).
This is a failure of CD changer's mechanism.
Replace with a non-scratched, non-warped disc.
Eject the disc then reload it properly.
This is a failure of DVD mechanism.
Retry or replace with a non-scratched, non-warped-
disc.
Eject the disc then reload it properly.
Set the correct Parental level.
Eject the disc and replace correct region code disc.
3.3V(I/O) 1.6V(Core)
IC6
DSP
TMS320DA140
(CD-ROM I/F)
(ECC)
(MPEG audio decode)
(WMA decode)
(CD-DA ESP)
IC3
LOGIC
SN74HCT08
-4-
Measure
IC4
IC9
LOGIC
DRAM
SN74 C139
K4S641632F-TC60
(1M x 16bit x 4B)
IC7
LOGIC
SN74 74
IC1
IC10
LOGIC
FLASH ROM
SN74 C139
MBM29DL800BA
(8Mbit)
3.3V
3.3V