This service manual is made from 100% recycled paper.
COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.
Functions of the mechanism under
the servise mode2-18
Flow of functional until TOC read2-20
Description of major ICs2-22
Block diagrams2-41
Standard schematic diagrams2-43
Printed circuit board2-47,48
Parts list3-1~17
No.49551
Mar. 2000
Functions of the mechanism under the service mode
With the three error modes stored in maximum in the internal memory of the mechanism in the body of this
system, it is posible under the service mode to call the contents of error according to the following steps when
any error has occurred.
Press the three buttons (UP button )+( button)+(Func button ). Then it is possible to select the follwing
service modes. After changing over to the service mode, press the UP button and DOWN button to
change the mode. For executing the respective service modes, press the SEL button.
With the service mode 2 , it is possible to call the error codes of the mechanism.
NORMAL MODE
(UP button ) + ( button) + ( button) at the same time.
DELEEPROM
CD-CH ERR
DEL CH-ERR
RUNNING
DELDATA
CD-ERR
Data stored in EEPROM
1. RDS data
2. CD mechanism error cord
3. Station name (to be input by user)
4. DISC name (to be input by user)
5. AUX input name (application only to KD-LX30)
*Any data 3 to 5 above should not be deleted.
: Deletion of entire EEPROM data. This mode is used when
shipping this system from factry.
: This mode is used only when the CD changer is connected.
: This mode is used only when the CD changer is connected.
: Running mode (Do not use this mode under the servise mode)
: (Deletion of CD error code and RDS data)
: Calling of CD mechanism error code
SELMODE
2
1
34
SOURCE
DISPRDS
PTYOFF/
5
6
1. Display of mechanism error
Error codesDescriptionOccurrence condition
Disc loading error
Eject error
Error during standby for loading
2. Display of CD error
Pickup feeding error
1. Inner peripheral feeding error
(10sec.)
2. Outer peripheral feeding error
(10sec.)
Focus search error
In the case of focusing error after
3-way focus searching
Tracking balance adjusting error
In the case of time-over (1sec.)
of timer
TOC area searching error
In the case of time-over (10sec.)
of timer
Reading error
IN the case of time-over (30sec.)
of timer
1st tracking access error
In the case of time-over (10sec.)
of timer
Last tracking access error
In the case of time-over (10sec.)
of timer
Q code reading error
In the case of time-over (0.6sec.)
of timer
TEXT data reading error
1. SW4 is not turned off.
2. SW3 is not turned on.
1. SW# is not turned off.
1. In case SW2 has been positioned to "L" before
starting loading during waiting for 15sec.
The pickup cannot returned to the inner
peripheral, and the REST switch is not turned off.
The pickup cannot be returned to the outer
peripheral, and the REST switch is not turned off.
In case the focus cannot be searched by one set
of focus searching (3-way focus searching) after
disc change and focus shock, judge that the focus
searching system is in error.
In case tracking balance cannot be adjusted even
after elapse of 1sec. following execution of the
adjusting command (TBA).
In case TOC area searching is not ended even after
elapse of 10sec.
In case reading is not ended even after elapse of 30
sec. during TOC reading action.
In case the first tracking access is not ended even
after elapse of 10sec. following completion of TOC
reading.
In case the last tracking access is not ended even
after elapse of 10sec. following completion of first
tracking under the RUNNING mode.
In case the Q code cannot be read for 0.6sec.
during playing TOC program area.
In case all TEXT data cannot be read.
09 0011
09 0013
01 0021
80 0031
Error codesDescriptionOccurrence condition
04 0051
04 0052
81 0053
82 0054
82 0055
84 0059
80 0060
80 0061
80 0062
80 0063
Flow of functional operation until TOC read
Power ON
• When the pickup correctly moves
to the inner area of the disc
Set Function to CD
• When the laser diode correctly
emits
Microprocessor
commands
FMO
MN662748RPM "32"
FEED MOTOR
+TERMINAL
TERMINAL
IC661"26"
REST SW
• When correctly focused
AN8806SB-W
27
Focus Servo Loop ON
Disc inserted
Pickup feed to the inner area
Laser emitted
Focus search
Disc rotates
RF signal eye-pattern
remains closed
Tracking loop closed
RF signal eye-pattern
opens
TOC readout
YES
YES
Microprocessor
commands
MN662748RPM 57
CN602 2
"No disc"
display
• When the disc correctly rotates
Microprocessor
commands
BCM
MN662748RPM
24
Spindle
motor (-)
IC661 "2"
AccelerationAcceleration
0.5 Sec
Rough
Servo
0.5 Sec
Servo CLV
Jump to the first track
Play
Tracking Servo Loop ON
• RF signal
Rough Servo Mode
CLV Servo Mode
(ProgramArea)
CLV Servo Mode
(Lead-In Area;
Digital: 0)
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