PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
CLASS 1
KLASSE 1
LUOKAN 1
KLASS 1
LASER PRODUCT
LASER PRODUKT
LASER LAITE
LASER APPARAT
This set employs laser. Therefore, be sure to follow carefully the
instructions below when servicing.
WARNING!
WHEN SERVICING, DO NOT APPROACH THE LASER EXIT
WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO
CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE
FROM A DISTANCE OF MORE THAN 30cm FROM THE
SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL
PICK-UP BLOCK.
Caution: Invisible laser radiation when
open and interlocks defeated avoid exposure to beam.
Advarsel:Usynling laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
VAROITUS!
Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyt-täjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
ATTENTION
L'utilisation de commandes, réglages ou procédures autres que
ceux spécifiés peut entraîner une dangereuse exposition aux
radiations.
ADVARSEL!
Usynlig laserståling ved åbning, når sikkerhedsafbrydereer ude
af funktion. Undgå udsættelse for stråling.
This Compact Disc player is classified as a CLASS 1 LASER
product.
The CLASS 1 LASER PRODUCT label is located on the rear
exterior.
VARNING!
Om apparaten används på annat sätt än vad som specificeras i
denna bruksanvising, kan användaren utsättas för osynling
laserstrålning, som överskrider gränsen för laserklass 1.
Precaution to replace Optical block
Body or clothes electrostatic potential could ruin
laser diode in the optical block. Be sure ground
body and workbench, and use care the clothes
do not touch the diode.
1) After the connection, remove solder shown in
the figure below.
ZA8 MODEL
ZA3/ZA4 MODEL (KSS-213F)
Solder
2
Page 3
How to Adjust the Rotating Phase of the
Gear, Main Cam
1) Push down the hooking catch of the CHAS. MECH, and
remove the TRAY.
2) Align the arrow mark of the Gear, Main Cam with the black
round mark of the CHAS, MECHA as shown below.
3) Confirm that the Slide, Mech Cam is located in the right
position, then insert the TRAY gently.
Caution: If the rotating phase of the Gear, Main Cam is
incorrectly adjusted, the chucking operation and
tray movement will have malfunction.
Align the arrow 2 mark with the black
round • mark.
• Regarding connectors, they are not stocked as they are not the initial order items.
The connectors are available after they are supplied from connector manufacturers upon the order is received.
CHIP RESISTOR PART CODE
REF. NOPART NO.KANRIDESCRIPTION
NO.
MOTOR C.B<ZA4RDC,ZA4RNDC>
M2 9X-262-513-210 SLED MOTOR<ZA4RDC,ZA4RNDC>
1. How to Activate CD Test Mode
Insert the AC plug while pressing the function CD button.
All FL display tubes will light up, and the test mode will be
activated.
3. CD Test Mode Functions
When test mode is activated, the following mode functions from No.1 to No.5 can be used by pressing the operation keys.
2. How to Cancel CD Test Mode
Either one of the following operations will cancel the CD test
mode.
• Press the function button.• Press the power switch button.
(except CD function button) • Disconnect the AC plug
Mode/No.
Start mode
No.1
Search mode
No.2
Play mode
No.3
Traverse mode
No.4
Sled mode
No.5
Operation
Activation
9 key
1 2 key
key
;
fi key
fl
FL display
All lamps light
All lamps light
Operation
• Test mode is activated.
• CD block power is ON.
• Laser diode turns always ON.
• Continual focus search
(The pickup lens repeats the fullswing up-down motion.)
* Avoid continual searches that last for
more than 10 minutes.
* NOTE 1
• Normal playback
• Focus search is continued if TOC
cannot be read.* NOTE 1
• During normal disc playback
Press once; tracking servo OFF
Press twice; tracking servo ON
* NOTE 1: There are cases when the tracking servo cannot be locked owing to the protection circuit being operated when heat builds up
in the driver IC if the focus search is operated continually for more than 10 minutes. In these cases the power supply should be
switched off for 10 minutes until heat has been reduced and then re-started.
* NOTE 2: Do not press the fi or fl keys when the machine is in the
after the
status has been canceled. If the fi or fl keys are pressed in the ; status, press the 9 key and return to the start mode
;
status is active. If they are pressed, playback will not be possible
;
(No.1).
* NOTE 3: When pressing the fi or fl keys, take care to avoid damage to the gears. Because the sled motor is activated when the fi or fl
keys are pressed, even when the pick-up is at the outermost or innermost track.
4. Operation Outline
The operation of each mode is carried out in the direction of the arrows from the start mode as indicated in the following illustration.
No. 2No. 3
1 2
No. 1
Start mode
(All FLs light up.)
2
Search mode
9
9
fi
fl
No. 5No. 4
Sled mode
;
Play mode
9
1 2
;
;
9
Traverse mode
If the DISC DIRECT PLAY button is pressed, the machine performs the same operation as the PLAY button is pressed as shown. If
the tray is opened by pressing OPEN/CLOSE button during Play mode or Traverse mode, the machine returns to the Start mode.
15
Page 12
IC DESCRIPTION
IC, LC78622NE
Pin No.Pin NameI/ODescription
1
2
3
DEFI
TAI
PDO
I
Defect sense signal (DEF) input pin. (Connect to 0V when not used).
I
O
Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
Phase comparator output pin to control external VCO.
4
5
6
7
8
9
10
11
12, 13
14
15
16
17
18
19, 20
21
VVSS
ISET
VVDD
FR
VSS
EFMO
EFMIN
TEST2
CLV+, CLV–
___
V/P
HFL
TES
TOFF
TGL
JP+, JP–
PCK
—
—
—
For PLL.
I
I
Digital system GND. Be sure to connect to 0V.
O
For slice level control.
I
I
Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
O
Disc motor control output. Three level output is possible using command.
Rough servo or phase control automatic selection monitoring output pin. Rough servo
O
at H. Phase servo at L.
I
Track detect signal input pin. Schmidt input.
I
Tracking error signal input pin. Schmidt input.
O
Tracking OFF output pin.
O
Tracking gain selection output pin. Gain boost at L.
O
Track jump control signal output pin. Three level output is possible using command.
O
EFM data playback clock monitoring pin 4.3218 MHz when phase is locked in.
GND pin for built-in VCO. Be sure to connect to 0V.
Pin to which external resistor adjusting the PD0 output current.
Power supply pin for built-in VCO.
Pin for VCO frequency range adjustment.
EFM signal output pin.
EFM signal input pin.
22
23
24
25
26
27
28
29
30
31
32, 33
34
35
36
37
38
39
40
41
FSEQ
VDD
SLD+
SLD-
PUSW
RW
LENSDW
EMPH
C2F
DOUT
TEST3, TEST4
N.C.
MUTEL
LVDD
LCHO
LVSS
RVSS
RCHO
RVDD
O
—
I/O
I/O
I/O
I/O
I/O
O
O
O
—
O
—
O
—
—
O
—
Sync signal detection output pin. H when the sync signal which is detected from EFM
signal and thesync signal which is internally generated agree.
Digital system power supply pin.
The pin is controlled by the serial data
command from microprocessor. When
General purpose input/output pin 1 to 5.
De-emphasis monitor output pin. De-emphasis disc is being played back at H.
C2 flag output pin.
DIGITAL OUT output pin. (EIAJ format).
I
Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
Not used. Set the pin to open.
L-channel mute output pin.
L-channel 1-bit DAC.
R-channel 1-bit DAC.
L-channel power supply pin.
L-channel output pin.
L-channel GND. Be sure to connect to 0V.
R-channel GND. Be sure to connect to 0V.
R-channel output pin.
R-channel power supply pin.
the pin is not used, set the pin to the input
terminal and connect to 0V, or alternately
set the pin to output terminal and leave
the pin open.
42
MUTER
O
16
R-channel mute output pin.
Page 13
Pin No.Pin NameI/ODescription
43
44
45
46
47
XVDD
XOUT
XIN
XVSS
SBSY
—
Crystal oscillator power supply pin.
O
Pin to which external 16.9344 MHz crystal oscillator is connected.
I
—
Crystal oscillator GND pin. Be sure to connect to 0V.
O
Subcode block sync signal output pin.
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
EFLG
PW
SFSY
SBCK
FSX
WRQ
RWC
SQOUT
COIN
___________
CQCK
________
RES
TST11
16M
4.2M
TEST5
______
CS
TEST1
O
C1, C2, single and dual correction monitoring pin.
O
Subcode P, Q, R, S, T, U and W output pin.
O
Subcode frame sync signal output pin. Falls down when subcode enters standby.
Subcode read clock input pin. Schmidt input. (Be sure to connected to 0V when not
I
in use.)
Pin outputting the 7.35 kHz sync signal which is generated by dividing frequency of
O
crystal oscillator.
O
Subcode Q output standby output pin.
I
Read/write control input pin. Schmidt input.
O
Subcode Q output pin.
I
Command input pin from microprocessor.
I
Command input read clock or subcode read input clock from SQOUT pin
I
LC78622 reset input pin. Set this pin to L once when the main power is turned on.
O
Test signal output pin. Use this pin as open (normally L output).
O
16.9344 MHz output pin.
O
4.2336 MHz output pin.
I
Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V.
Chip select signal input pin with built-in pull-down resistor. Be sure to connect to 0V
I
while it is not controlling.
I
Test signal input pin without built-in pull-down resistor. Be sure to connect to 0V.
Note: The same potential must be applied to the respective power supply terminals. (VDD, VVDD, LVDD, RVDD, XVDD)
17
Page 14
IC, LA9241ML
Pin No.Pin NameI/ODescription
1
2
FIN2
FIN1
Pin to which external pickup photo diode is connected. RF signal is created by adding
I
with the FIN1 pin signal. FE signal is created by subtracting from the FIN1 pin signal.
I
Pin to which external pickup photo diode is connected.
10
11
12
13
14
15
16
17
3
4
5
6
7
8
9
E
F
TB
TE–
TE
TESI
SCI
TH
TA
TD–
TD
JP
TO
FD
FD–
Pin to which external pickup photo diode is connected. TE signal is created by
I
subtracting from the F pin signal.
I
Pin to which external pickup photo diode is connected.
I
DC component of the TE signal is input.
I
Pin to which external resistor setting the TE signal gain is connected between the TE pin.
O
TE signal output pin.
TES “Track Error Sense” comparator input pin. TE signal is passed through a band-
I
pass filter then input.
I
Shock detection signal input pin.
I
Tracking gain time constant setting pin.
O
TA amplifier output pin.
Pin to which external tracking phase compensation constants are connected between
I
the TD and VR pins.
I
Tracking phase compensation setting pin.
I
Tracking jump signal (kick pulse) amplitude setting pin.
O
Tracking control signal output pin.
O
Focusing control signal output pin.
Pin to which external focusing phase compensation constants are connected between
I
the FD and FA pins.
18
19
20
21
22
23
24
25
26
27
28
29
30, 31
32, 33
34
FA
FA–
FE
FE–
PGND
SP
SP1
SPG
SP–
SPD
SLED
SLD
SL–, SL+
JP–, JP+
TGL
—
—
Pin to which external focusing phase compensation constants are connected between
I
the FD– and FA– pins.
Pin to which external focusing phase compensation constants are connected between
I
the FA and FE pins.
O
FE signal output pin.
I
Pin to which external FE signal gain setting resistor is connected between the FE pin.
Analog signal GND.
No connection.
O
Single ended output of the CV+ and CV– pin input signal.
I
Pin to which external spindle gain setting resistor in 12 cm mode is connected.
Pin to which external spindle phase compensation constants are connected together
I
with SPD pin.
O
Spindle control signal output pin.
I
Pin to which external sled phase compensation constants are connected.
O
Sled control signal output pin.
I
Sled advance signal input pin from microprocessor.
I
Tracking jump signal input pin from DSP.
I
Tracking gain control signal input from DSP. Low gain when TGL = H.
35
TOFF
I
Tracking off control signal input pin from DSP. Off when TOFF = H.
18
Page 15
Pin No.Pin NameI/ODescription
36
TES
O
Pin from which TES signal is output to DSP.
37
38
39, 40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
HFL
SLOF
CV–, CV+
RFSH
RFS–
SLC
SLI
DGND
FSC
TBC
NC
DEF
CLK
CL
DAT
CE
DRF
NC
“High Frequency Level” is used to judge whether the main beam position is on top of
O
bit or on top of mirror.
I
Sled servo off control input pin.
I
CLV error signal input pin from DSP.
O
RF output pin.
RF gain setting and EFM signal 3T compensation constant setting pin together with
I
RFSM pin.
“Slice Level Control” is the output pin which controls the RF signal data slice level by
O
DSP.
I
Input pin which control the data slice level by the DSP.
—
Digital system GND.
O
Output pin to which external focus search smoothing capacitor is connected.
I
“Tracking Balance Control” EF balance variable range setting pin.
—
No connection.
O
Disc defect detector output pin.
I
Reference clock input pin. 4.23 MHz of the DSP is input.
I
Microprocessor command clock input pin.
I
Microprocessor command data input pin.
I
Microprocessor command chip enable input pin.
O
“Detect RF” RF level detector output.
I
No connection.
56
57
58
59
60
61
62
63
64
VCC2
REF1
VR
LF2
PH1
BH1
LDO
LDS
VCC1
—
Servo system and digital system Vcc pin.
—
Pin to which external bypass capacitor for reference voltage is connected.
O
Reference voltage output pin.
I
Disc defect detector time constant setting pin.
I
Pin to which external capacitor for RF signal peak holding is connected.
I
Pin to which external capacitor for RF signal bottom holding is connected.
O
APC circuit output pin.
I
APC circuit input pin.
—
RF system Vcc pin.
19
Page 16
MECHANICAL EXPLODED VIEW 1/1
13
11
12
14
28
27
26
25
24
23
22
B
29
C
19
30
a
A
31
20
P.C .B
21
P.C.B
10
a
32
9
4
8
18
7
6
3
4
1
2
5
CUSHION,CD A
15
AZA-5 P.C.B
17
16
EXCEPT ZA4, ZA8 : 3ZG-2
ZA4 : KSM-2131FAM
ZA8 : KSM-880CAB
20
CUSHION,CD A
33 (EXCEPT ZA4, ZA8)
15
CUSHION,CD A
Page 17
MECHANICAL PARTS LIST 1/1
REF. NOPART NO.KANRIDESCRIPTION
NO.
1 84-ZG1-225-010 BELT,SQ1.0-63.3
2 84-ZG1-672-010 F-CABLE,5P 1.25 210MM WHITE N
3 87-045-364-010 MOTOR(BCH3B14)
4 84-ZG1-267-010 PULLEY,LOAD MO 8
<EXCEPT ZA3RDF,ZA3RNDF>
4 81-ZG1-212-010 PULLY,LOAD MO<ZA3RDF,ZA3RNDF>
5 84-ZG1-238-010 GEAR,WORM N