Pioneer DV-47Ai, Service Manual

Page: 74 / 149

DV-47Ai
74
1 2 3 4
1 2 3 4
C
D
F
A
B
E
FL
Description of
Error
Causes if with a DVD Causes if with a CD Operation of the Unit
74
Subcode check
failure during startup Subcode could not be read within 1
second after the tracking on. Opens (Subcode readout
failure).
A1
Communication
timeout of DSP
command
A command could not be issued to DSP because
Command Busy (XCBUSY) was in force
(XCBUSY = L) for a specified time (about 200
µ
S).
Open
A2
Communication
timeout for reading
DSP coefficient
Command Busy (XCBUSY) was in force for a
specified time (about 200
µ
S) before and after a
coefficient read command was issued to DSP, or
the address echo-back after command issuance
did not match the setup address. Open
A4
Communication
timeout for
continuously writing
DSP coefficient Command Busy (XCBUSY) was in force for 200
µ
S during continuous coefficient writing, or before
and after a continuous write command was
issued to DSP.
Open
B1
Timeout error for
backup
In the backup sequence, codes could not be read for fixed time. Stops
B2
Retry error for
backup
Cannot close tracking even if performs backup fixed number of times. Stops
B3 Retry error for trace
During tracing, do not restore after the runaway detection backup was performed
several times.
Stops
C3
Detection of tracking
overcurrent During playback, the overcurrent detection port was at L for 300 ms or more
continuously.
Stops (the mechanical
controller operates
independently).
(C5)
Short-circuit test
corresponding error After the overcurrent detection (C3 error), furthermore the overcurrent detection port
was at L for 300 mS or more continuously.
Turns off the power
instantly (No indication on
the FL display and no
writing to flash memory)
F5 Tray being pushed
The tray switch that had been Open mode was forcibly changed to a mode other
than Open by an external force.
Closes
F6 Code reading NG
(PH code nothing) When Philips
code is not readable during LD
starting, and a code was not
readable after the slider moved to
FWD and REV directions slowly
each for five seconds.
(PRD) In the CD starting, when a
subcode of TOC part was not
readable, but the subcode of the
program area was readable.
Search, scan and special
playback prohibition,
Playback as playback
CD-R (PRD mode) as it is.
F8 Loading timeout
Loading or unloading could not be completed
within a specified time (about 10 seconds).
Though a portable cover is opening, when a
close command was issued from the system
controller.
Reverses the loading
direction. It timeout is
repeated upon retry, the
unit stops.
FC Focus
• Focus ON sequence could not be completed more
than two seconds.
• Auto sequence command was finished, actually
focus ON was not completed.
• Focus did not enter even if retried it eight times.
Stops wherever possible
then opens (stops in the
case of side B).
FL Description of Error Causes if with a DVD Causes if with a CD Operation of the Unit
bit4=1 10 etc.
Mechanism controller RAM
check sum error
No operation or it becomes debugging
indication if the power is able to ON.
bit3=1 08 etc.
AV1 access error
(read, write NG)
bit2=1 04 etc. LSI11 access error
bit0=1 01 etc. SRAM access error
Error codes that are displayed on the FL display by using the remote control unit (Device error)
To display: ESC + D DISPLAY; Location of the display: At the two digits of left of the FL display