Panasonic Crs 1 Service Manual

							3.15. Changer Error Code
 
    · 
    The error code summary ofCRS1 changer is as below:
Error CodeOperation
IHMSCam gear rotate to HOME position
ICLSCam gear rotate to Play Driving position to drive playingtray to STOCKposition
ISTKMove tray drive rack to STOCKposition (drivetray to STOCKposition)
IPLYMove tray drive rack to PLAYposition (drivetray to PLAYposition)
ITOPMove UD rack R to front direction (raise UD base to top position)
IUDSAfter TOP-SW detect, UD rack move totray 1position
HOMEAfter loadtray to PLAY position, cam gear move to HOMEAfterunload to STOCK position, cam gear
move to HOME
After all tray close, cam gear go to HOMEposition
LOADTray movefrom STOCK toPLAY position
UNLDTray movefromPLAY to STOCK position
PDRVCam gear move from HOME to Play Driving position
UDUUD base move at up direction (fromtray 5 to tray 2)
UDDUD base move at down direction (fromtray 1 to tray 5)
UD1UD base move to tray 1
F1NGFail safe 1 NG (Fail safe 1 unsuccessful then try Fail Safe 2 also unsuccesful)
F2NGFail safe 2 NG (Fail safe 2 unsuccessful then try Fail Safe 1 also unsuccesful)
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							4 Self diagnosis and special mode setting
This unit is equipped with functions for checking and inspecting namely : Self-Diagnostic and Test Mode.
4.1. Special Mode Table
ItemFL DisplayKey Operation
Mode NameDescriptionFront Key
Self -Diagnostic
ModeTo enter into self
diagnostic checking for
main unit. 1. Select [] for TAPE mode (Ensure no
tape is inserted).
 2. Press and hold [
]button for 3
seconds follow by [].
To exit, press
button on main
unit or remote control.
CD Test ModeTo enter into checking the
reliability of changer unit. 1. Select [] for CD mode.
 2. Press and hold [
] button for 3
seconds follow by [].
To exit, press
button on main
unit or remote control.
CD Auto
AdjustmentTo check the CD auto
adjustment result for
FLOCK, TLOCK and
CLVS.In CD Test Mode:
 1. Press [0] button on the remote control.
To exit, press
button on main
unit or remote control.
CD Changer
Reliability Test
(CRS1)To determine the
reliability of CD Changer
Unit.
(For more information,
refer to section 4.1.1)In Self-Diagnostic Mode:
 1. Select [] for CD mode.
 2. Press [
] button.
To exit, press
button on main
unit or remote control.
(The tray will return to PLAYposition and then
power off)
Doctor ModeTo enter into Doctor
Mode for checking of
various items and
displaying EEPROM and
firmware version. 1. 
 2. 
 1. All segments will light up for 1 second.
 2. The Check Sum of EEPROM and firmware
version will be display.
* ROM correction
** Firmware version No:
In any mode:
 1. Press [] button on main unit follow
by [4] and [7] on remote control.
To exit, press [ENTER] button on remote
control or
button on main unit
or remote control.
Cold StartTo activate cold start
upon next AC power up.In doctor mode:
 1. Press [4] button on remote control.
To exit, press [ENTER] button on remote
control or
button on main unit
or remote control.
Changer
Reliability TestTo check the function
operation of changer unit.
(For more information,
refer to 4.1.1)In doctor mode:
 1. Press [DISC] on remote control.
To exit, press [ENTER] button on remote
control or
button on main unit
or remote control.
FL Display TestTo check the FL
segments display (All
segments will light up and
LED will blink at 0.5
second interval)In doctor mode:
 1. Press [PROGRAM] button on remote
control.
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CRS1 
						

							ItemFL DisplayKey Operation
Mode NameDescriptionFront Key
Tape Eject TestTo check on the tape
eject function (For deck
1/2)In doctor mode:
 1. Press [PROGRAM] button on remote
control.
4.1.1. CD changer unit ageing test mode
Below is the process flow chart of ageing for the CD changer unit.
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CRS1 
						

							4.2. Error code Table
Self-Diagnosis Function (refer Section 4.1) provides information on any problems occuring for the unit and its respective
components by display ing the error codes. These error code such as U**, H** and F** are stored inmemory and held unless it is
cleared.
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							The error code is automaticallydisplay after entering into self-diagnosticmode.
Error CodeDiagnosis ContentsDescription of errorAutomatic FL DisplayRemarks
IHMSCam gear
abnormalityCam gear does not
rotate to “HOME”
position.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
ICSLCam gear/gear units
abnormalCam gear does not
rotate to “PLAY” driving
position and hence does
not drive playing tray to
“STOCK” position.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
ISTKDrive rack/gear
assembly abnormalThe tray drive rack does
not move to “STOCK”
position. (Tray does not
move to “STOCK”
position)For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
IPLYDrive rack/gear
assembly abnormalThe tray drive rack does
not move to “PLAY”
position. (Tray does not
move to “PLAY” position)For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
ITOPUD assemblyUD Rack does not move
to front direction. This
lead to UD base not
raise to top position.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
IUDSUD assemblyAfter TOP SW is
detected, UD rack does
not move into tray 1
position.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
HOMECam gear/gear
assembly abnormalCam gear does not
move to “HOME”
position under following
conditions
 1. After tray isload to
“PLAY” position.
 2. After tray isunload
to “STOCK” position.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
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CRS1 
						

							Error CodeDiagnosis ContentsDescription of errorAutomatic FL DisplayRemarks
LOADTray drive assembly
abnormalTray unit does not move
from “STOCK” to “PLAY”
positionFor CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
PDRVCam gear/gear
assembly abnormalCam gear does not
move from “HOME” to
“PLAY” drive position.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
UDUUD base asssembly
abnormalUD Base assembly does
not move upwards from
tray 5 to tray 2For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
UDDUD base asssembly
abnormalUD Base assembly does
not move downwards
fromtray 1 to tray 5.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
UD1UD base asssembly
abnormalUD Base assembly does
not move to tray 1.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
F1NGFail - safe mode. (For
open/closetray
unit(s))When thetrayopen
operation is performed, it
fails to open. It will
automatically close all
trays after the time-out
by the microprocessor.
During this time when it
fails, the error code will
appear.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
F2NGFail - safe mode. (For
open/closetray
unit(s))When thetray close
operation is performed, it
fails to close. It will
automatically open all
trays after the time-out
by the microprocessor.
During this time when it
fails, the error code will
appear.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
SRVC_TRVTo unlock the
traverse unit for
service 1. All trays set to
“STOCK” position
 2. Mechanism set to
tray 5
 3. Cam gear set to
“HOME” positionFor CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit.
RSETCam gear jam/close
sensor faultyDuringtray re-open, the
cam gear will rotate in
the opposite direction to
reset the cam
gearposition.When it
fails, the error code will
appear.For CD changer unit (CRS1).
Press [SINGLE CHANGE] on main unit
for next error.
CRS1 Error Code display
 1. The errors that occured in CRS1 Mechanism can be recalled and display ed, in the order of the occurence under self-diagnostic
(Refer to Section 4.1 for procedures to enter this mode.
 
    · 
    Only the first 5 errors will be memorized (in backupmemory). The subsequence errorshall be ignored and notmemorize.
For system with EEPRO M asmemory backup,memory space inEEPRO M is neccesary.
 2. To display all error codememorized
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CRS1 
						

							In CRS1 Self-Diagnostic mode, press [SINGLE CHANGE] todisplay subsequence error code.
It shall repeat after reaching error no. 5.
e.g.:
[1____IHMS]→[SINGLE CHANGE]
[2____ITOP]→[SINGLE CHANGE]
[3____HOME]→[SINGLE CHANGE]
[4____LOAD]→[SINGLE CHANGE]
[5_____UDD]→[SINGLE CHANGE]
 3. To clear the error code memory
In CRS1 Self-Diagnostic mode, long press [SINGLE CHANGE] key (2s ormore)
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CRS1 
						

							5.1. Preparation of service jig
 
    · 
    This unit has a gear which is used for checking items
(open/close of disc tray, up/down operation of traverse unit
by manua lly) when servicing. (For gearinformation, that is
described on the items for disassembly procedures.)
 
    · 
    For preparation of gear (for servicing), perform the
procedures as follows.
 
    · 
    In case of re-servicing the same set, the “gear for servicing”
may be took off because it had been used. So, the “gear for
servicing” must be stored.
5.2. Checking of Changer Unit
Below is the procedures for checking the function of the
changer unit.
Step 1: Enter into doctor mode.
Step 2: Press [DISC] on remote control unit.
Step 3: Error code will appear if there is any function problems.
(Pls refer to section 4.2 on more information of error code).
5.3. Setting the trays in STOCK
position
 
    · 
    Below is procedures for setting the main unit into service
mode:-
 1. Enter into self-diagnostic (Refer to section 4.1)
 2. Press [SINGLE CHANGE] on main unit.
 
    · 
    If fail to set the main unit into service mode, do it manually
by the below procedures
5.3.1. No CD in the tray
Step 1: Check any disc tray at the play positionfrom the
mechanism side.
Step 2: Press the 2 claws and then lift up the top cover as
arrows shown.
Caution: Do not exert strong force on the claws.
5 Troubleshooting Explorer
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CRS1 
						

							Step 3: Releas e the top cover from thetray rear stopper
as arrow shown and remove the top cover.
Step 4: Remove the open lever spring.
Step 5: Insert the service gear into the service hole and
rotate the gear anti-clockwise.
Step 6: Press and hold the plunger lever and rotate the
gear clockwise until it stop.
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CRS1 
						

							Step 7: Releas e the plunger lever, rotate the gear clockwise
continuously until it stop at “HOME” position.
Step 8: Install the open lever spring as shown.
Step 9: Install the top cover, fix the top cover hook to the
tray rear stopper as arrow shown.
Step 10: Fix the top cover as arrow shown, the 2 claws
should be latched.
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CRS1