DC motor with electronic
governorx
55 dB (TAPE 1,
50 dt3 (TAPE 2, recording/playback)
0.15%
AC
4.76cm/set
TAPE-l:Playbackx
TAPE-2:
(15-l/4”)
(16.4 Ibs.)
(25 W + 25 W)
MHz
,602 kHz
1
playback)
(WRMS)
(l-7/8 ips)
Record/playback x
Erase x 1
50160 Hz
1
1
0
Compact disc player section
Type:
Signal readout:
Rotational speed:
Error correction:
Quantization:
Filter:
Frequency response:
Dynamic range:
Wow and flutter:
0
Speaker system
Type:
Maximum input power:
Impedance:
Dimensions:
Weight:
I
5-disc multi-olav comoact disc
player
Non-contact;
200 - 500 rpm CLV,
CIRC
Solomon Code)
16 bit linear
4-times oversampling digital
20- 20,000
90dB (1 kHz)
Unmeasurable
(less than 0.001 %
3-way
woofer, 5cm (2”)
super
5ow
8 ohms
Width; 200 mm (7-7/E?)
,
Height;
Depth; 179 mm
3.0 kg (6.7 Ibs.)/each
’
semiconductor laser
(Cross Interleave Reed-
type
tweeter]
372 mm (14-11/16”)
Approx.
Hz
Wpeak)
[12cm (4-3/c”)
tweeter
(7-l/16”)
filter
and
Specifications for this model are subject to change without prior
notice.
VOLTAGE SELECTION
The voltage selector is located on the AC voltage selector box.
If adjustment is necessary, use a screwdriver in order to turn the
selector in either direction until the correct voltage figure is
displayed in the window next to the adjustment screw.
AC POWER SUPLLY CORD AND PLUG
92LCORb13186
Q
92LC6RD1393A
92LCSDA1387C
92LPLUG027
92LPLUGi 55A
Figure 2 AC POWER SUPLLY CORD AND PLUG
-2-
m
5-disc multi-play
i.
Dust Cover
2.
Disc Tray (Disc 1 - 5)
3.
Stop
4.
Pause Button:
5. Play Button:
6.
Disc Number Select Buttons
7. Disc Skip Button
8.
Clear Button
9. Memory Button
10.
Random Button
Il.
Track Down/Review Button: HI /
12. Track Up/Cue Button: W I
13.
Repeat Button: CY
14.
Disc Number Indicator
15.
Track Number indicator
16.
Random Indicator
17.
Memory Indicator
18. Extra Bass Indicator: X-SASS
18.
Pause Indicator: II
20.
Repeat Indicator:
21.
Play Indicator:
22. Minutes and Seconds Indicator
H
Stereo synthesizer tuner section
23. Stand-By Indicator
24.
Presetup/~own
25.
Band Selector Button
26. Tuning Up/Down Buttons:
27. Reset
28. Memory Button
compact disc player section
Button:
m
I,
w
c
b
muttons: v//,
Button
VIA
w
t(
NAMESOF
PARTS
/I\
1819
7 8 9 10 11
6
14
‘.- 15
\
2021
1213
16 17
I
22
H
Stereo double cassette deck section
i.
Dubbing Speed Switch
2. TAPE 2) Cassette Compartment
3. TAPE 1) Cassette Compartment
4.
Record Button:
5. Play Button:
6.
Rewind Button:
7. Fast Forward Button:
8. Stop/Eject Button:
9.
Pause Button: II
10. Play
Button: .
i 1.
Rewind Button:
12.
Fast Forward Button:
i
3. Stop/Eject Button:
n
Rear panel
14. FM 300 ohms Aerial Terminal
16. FM 75 ohms/ FM 300 ohms Aerial Terminal
16. FM/AM Aerial Earth Terminal
17.
AM Aerial Terminal
18.
Video (Audio Signal) / Auxiliary Input Sockets
18. Speaker Terminals
20. AC Voltage Selector
21.
AC Power Lead
l
b
+
TAPE
+
U&
Ur
ti
1
t,
4 56 7 8 9 10111213
14
15
16
17
18
19
20
29. Preset Channel Indicator
30.
Bend Indicator
31.
FM Stereo Mode Indicator
32.
33. FM Stereo Indicator:
34.
n
35.
36.
37. Extra
38.
39.
40. Function Selector Buttons
41. Headphones Socket
Indicator
Memory
Frequency
Station
Integrated stereo amplifier section
Power
Switch
Remote Controt tensor
Bass Button : X-BASS
Vohme/Batance control muttons
Equalizer Mode Button
TV
-3-
&ii&@]
36373839
35
33
40
34
H
Speaker section
22. Tweeter
23.
Super Tweeter
24. Woofer
25.
Bass Reflex Ducts
26.
Speaker wire
-4-
25
22
El
23
24
26
c
n
Names of controls
1.
Remote Control Transmitter Window
0
Tuner control buttons
2. Preset
Up/Down
Buttons:
3. Band Selector Button
0
CD control buttons
4. Memory
5.
6.
7. Repeat Button:
8.
9.
10.
Il.
12.
13.
14.
wt0n
Clear
Button
Random
Button
play Button:
Track Down/Review Button: tl I
Track
Pause Button: II
stop
Disc Number Select Buttons
Disc
)
Up/Cue
Button: t, I
Button:
n
Skip Button
v/r\
c
HI
OPERATION
MANUAL
1
n
Proper use of the remote control
2
3
4
5
6
7
m
15
16
A
(50
r-11
-12
-13
-14
'17
\I8
60”
\I9
Aim the remote control at the remote control sensor within
60”.
with no obstacles, and operate es shown.
Notes concerning use:
l
Replace the batteries if control distance decreases or
operation becomes erratic.
l
Periodically clean the transmitter window on the remote
control and the sensor on the main unit with a soft cloth.
l
Exposing the sensor on the main unit to strong light can
interfere with operation. Chanae the liahtina or the
tion of the unit:
l
Keep the remote control away from moisture, excessive
heat, shock, and vibrations.
l
The remote control’s usable range is between 0.2 m (8”)
and 6 nt
(20’)
away from the sensor.
_ __
direc-
15. Function
16. Power
17.
18.
19.
Selector Buttons
Button
Equalizer Mode Button
Extra Bees Button : X-BASS
Volume Up/Down Buttons:
VI/\
Reset the microcomputer by pertorming the following
procedure for the cesee shown below:
l
To erase all of the stored memory contents, or
l
If the display does not function properly, or
l
The unit does not operate properly.
1 Set the POWER
2
Disconnect the AC power lead from the AC socket.
3
Press the RESET button for at least 3 seconds.
swtch
to STAND-BY.
-5-
-8-
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling the
unit and reassembling it, to keep its safety and excellent
periormance:
1. Take cassette tape and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall outlet
before starting to disassemble the unit.
3. Take off nylon bands or wire holders where they need be
removed when disassembling the unit. After servicing the
unit, be sure to rearrange the leads where they were before
disassembling.
4. Take suffcient cars on static electricity of integrated circuits
and
other
clrcults
when servcmg.
Screw
I
/
Figure 8-l
, Tape Mechanism
Figure 8-5
(Ml)xl
+
2.6
x,omm
Socket
/
I
6
Front Panel
7Display
6
Tape Mechanism 1 Open the cassette holder.
9
Dust Cover
CD Cover
IO
Turntable
11
12
CDServo/
Sensor PWB2.Socket..
13
CD Mechanism1.Screw
1
Front Panel
2
Woofer~weefer
Super Tweeter
2. Socket..
PWB
/
................... (EZ)
...................
1.
Screw..
........ ...........
1. Screw..
................. (HI)
2.
Screw..
1.
See Rg.8.3.
......... ..........
1.
Screw..
......,.........
1.
Screw..
...................
1.
screw..
...
....
............... .......
3 Hook
2. Hook
PROCEDURE/ FIGURE
1. Net
.._....... .,._.......
2. Holder
3.
SCreW
1.
Screw
.._........... (B1
(Fi)
(Gi)
(Ji)x18-3
(Ki)
(Li)
.....
..,
(L2) x5
(L3)
(Ml) xl
(MP)
.(Al) xl
(A2) x4
(A3) x4
x4
x2
x14
x6
xl
x38-5
x2
x2
)
)
x8
8-6
6-l
B-1
8-2
8-3
8-4
6-6
a-7
Figure 7-2
Display
PWS
Figure 8-2
Figure 8-3
( Kl
+3xlOmm
) xl
Stabilizer Bracket
Figure 8-6
Figure 6-7
,81,X2
Figure
-7.
7-3.
Figure 6-4
Figure 6-6
TAPE MECHANISM SECTION
Perform steps 1, 2,
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 9-l.)
1. Carefully band the record/playback head
the direction of the arrow
head upwards.
2. Remove the screws
How to remove the playback head (TAPE 1)
(See Fig. 9-2.)
1. Carefully band the playback head
direction of the arrow
upwards.
How to remove the pinch roller (TAPE
(See Fig. 9-3.)
1.
Carefully bend the pinch roller
0,
and remove the pinch roller
How to remove the belt (TAPE 2) (See Fig. 9-4.)
1. Remove the main belt (El) x 1 pc., from the motor side.
2. Remove the FF/REW belt (E2) x 1 pc.
How to remove the belt (TAPE 1) (See Fig. 9-4.)
1. Remove the tape 2 main belt (El) x 1
2. Remove the tape 1 main belt
3. Remove the FF/REW belt (F2) x 1 pc.
How to remove the motor
(See Figs. 9-5 and 9-6.)
1. Remove the belt.
2. Remove the screws
3. Remove the screws (G2) x 2
Note:
When mounting the motor, pay attention to the motor mounting
angle.
34,
5, 6 and 8 of the disassembly method to
paw1
(Al) x 2
PCS.,
PCS.,
in the
@,,
and remove the record/playback
(Bl) x
2
PCS.,
to remove the erase head.
pawl
a,,
and remove the playback head
(Cl) x 2
112)
pawl
in the direction of the arrow
(Di)
upwards.
PC.,
from the motor side.
1
PC.,
from the motor side.
to remova the motor bracket.
PCS.,
to remove the motor.
69
(Gl) x
4
(Fi) x
PCS.,
(Gl)@
in
Play ht,”
Play
Button
Figure 9-l
Figure 9-2
Pinch Roller
(Dl)xl
Playback Head
PeWI
(Ci)x2
CD MECHANISM SECTION
Perform steps
to remove the CD mechanism.
How to remove the pickup
(See Figs. 10-l and 10-2.)
1. After removing the CD mechanism according to the disassembling procedure, remove the screws, (Al) x 4
(A2) x 2
2. Fit a new pickup in reverse order of disassemblrng. After fitting,
lock it with the screw (A3) x 2
3. Connect the connector and lead wire as it was.
4. The
ment of performance of pickup.
Note:
When replacing the pickup do not apply force to the turntable of
spin motor. Otherwise, the height of main chassis and turntable
may be varied.
After replacing the pickup
This new mechanism has been newly designed to enhance
remarkably its performance as compared to the former ones, so
that there is no need to adjust pickup posture,
*
After mounting the pickup, apply voltage to the slide motor, and
ascertain that it runs at DC 1.5 V or less.
How to remove the the CD select motor
(See Fig. 10-3.)
1.
Refer to “Removing the turntable and remove the turntable”
(See Figs. 8-3, 8-4 and 8-5)
2. Remove the belt
3. Remove the select motor mounting screws
1,9,10, 11,12
PCS.,
and replace the pickup.
laserpoweradjustment
(Bl) x
1 pc.
and 13 of the disassembly method
PCS.
and shafts
PCS.
is not necessary owing to improve-
(82) x
2
PCS.
(A2v
Shaft
Pickup
Fiaure IO-1
Rack Gear
Figure 1 O-2
Figure
Fiaure 9-3
Figure 10-3
S-6
-IO-
MECHANISM SECTION
l
DrivingForceCheck
Torque Meter
Play: TW-2412
l
Torque
Play: TW-2111
Fast forward: TW-2231
Rewind: TW-2231
l
Tape Speed
Check
Torque Meter
30to60 g. cm
55to120
TUNER SECTION
fL:
Low-range frequency
fH:
High-range frequency
l
AM
IF/RF
Signal generator: 400 Hz,
1
Test
Stage
IF
Band
Coverage
Tracking
l
1 Input: Antenna terminal
*2.
Input: Input is not connected.
Frequency
450
-
990
kHz
kHz
30%,
AM modulated
FrequencySpecified
DisplayValue/
1,620 kHz
531
kHzT204(fL):
990
kHz
Specified Value
Tape 1:
Over 50
Tape 2:
Tape 1
g.cm
g
Over
100 g
Specified Value
30 to 60 g.cm
80 to
Adjusting
1
Point
T251
1.1 v+o.1 v
T202
Output: Speaker terminal
Output: TP201
ADJUSTMENT
Tape
2
135 g.cm
Instrument
Connection
‘1
*2
l 1
l
SettingtheTestMode
Keeping the TUNING (DOWN) button and MEMORY button pressed,
turn on POWER. Then the frequency is initially set in the memory as
shown in Table. Call with the PRESET button to use itforadjustment and
check of tuner circuit.
1
2
3
6 - 20
Preset No.
67.50
MHz
108.00 MHz
90.00
MHz
106.00
MHz
98.00
MHz
-
FM
/
531
kHz
1,602 kHz
603 kHz
1,404 kHz
kHz
990
-
AM
. FM IF
Signal generator: 1
Test
StageDisplay
IF
*l
Adjust the T201 so that an-output signal become maximum.
l
FMRF
Signal generator: 1
Test StageFrequency
Band
Coverage
RF
‘I.
Input: Input is not connected.
*2.
Input: Antenna
l
FM
Mute
Signal generator: 1
kHz,
Frequency
10.7
MHz
-
96.00 MHz
(IO-30
Level
kHz,
40 kHz dev., FM modulated
FrequencyAdjusting
98.00
MHz
T201 ‘1
kHz,
40
kHz
dev., FM modulated
Frequency
Display
87.50
MHz
L203(fL):
1.85V+50mV
98.00 MHz
dB)
L202
Output: TP201
Output: Speaker terminal
40
kHz
dev., FM modulated
Parts
Serringl
Adjusting Point Connection
’
Instrument
Connection
Input: Pin 1 of
IC201
Outout:
Speaker
terminal
instrument
‘1
‘2
Figure 11 ADJUSTMENT POINTS
-ll-
ANTENNA
TERMINAL
AM TRACKING
n
ExtensionCable
When performing adjustment or operation checks, use the extension cables as showm below, when nesessary.
(See Fig.
Ref.
13-4.)
Parts Cord
Connection to be connect
No.
QCNWKOO25AFZZ CNP7-CNS7(13-13 Pin)
A
CD SECTION
“Trackskippingand/ornoTOC(TableOf
by a build up of dust other foreign matter on the
Before attempting any adjustment make certain that the lens is
clean. If not, clean it as mentioned below.”
1. Turn the power off.
2. Gently clean the lens with a lens cleaning tissue and a small
amount of isopropyl alcohol.
Note:
Do not touch the lens with the bare hand.
Contents) maybecaused
iaser
pickup lens.
1. Preparation for Adjustment
1-I.
Remove the CD section from the main unit, and connect the
CD section to the main unit using a jig cable unit.
l-2.
Test mode setting
With the PAUSE II button and STOP n button pressed, turn
on the power switch.
l-3. Test mode operation
When the test mode is entered, the CD mechanism will move
down.
When the ) button is pressed once, the CD mechanism will
move up.
When it is pressed again, the CD mechanism will play. When
the n button is pressed during play, the CD mechanism will
stop.
When it is pressed again, the CD mechanism will move down.
(See Fig. 12-l
.)
2. VCO Free-Run Frequency
Adjustment
Point
When lower than
the specified:
When higher than
the specified: *2
*I:
Cut the R37 (39 kohms).
‘2: Cut the R38 (33 kohms).
Specified Value
Instrument Connection
4 3oo kHz + 150 kliz TPG(VC0) and GND.
’
*I
-
200
kHz
3. Servo Unit
Follow the procedure stated below.
l
Tracking Error Balance
Adjusting
Point
VRl
*1
: When the play modeAPSS w button is pressed, adjustment
of tracking error balance. (Tracking server
obtain symmetric waveform (Figure 12-3.) when DC is 0 V.
After adjustment APSS I+ button is pressed.
(Tracking servo ON)
l
Focus Gain
Adjusting Method
l
1
Instrument Connection
TP9 (T.ER) and GND.
off)
Adjust SO as to
l
Tracking Gain
*3:
Apply sine wave (Oscillation Frequency: 1 .O kHz 0.5 Vrms) as
shown in Figure 13-I.
l
Check HF Output
Adjusting
Adjusting Method
instrument Connection
Point
--
TPl (HF) and GND.
Make sure that waveform is as shown in Figure 13-2.
Test Mode Start
I
(
CD Mechanism Down
I
1
CD Mechniam Up
Figure
12-l
;..-...‘-.--~..‘-..‘--~---.--..---.
TPS(T.E
SCILLOSCOPE
(GW
1...............-...-----.-~-.----~
TRACKING ERROR
BALANCE ADJ. JIG
Figure 12-2
DC=OV
t
I I I
II I
/III
I
More than
l.OVp-p
Figure 12-3
‘2: Apply sine
wave(Oscillation
shown in Figure 12-4.
Frequency: 1 .O kHz 0.5 Vrms) as
-12-
**I
I
820
I------_-----------------~
FOCUS GAIN ADJ. JIG
Figure 12-4
--
TP4(TE)?
R45
lk
TPS(TP)
Q
L
-
i-1:
:
0.0082
GND
-
I
I.
:
:
‘--____--__-_--~__~----~-~
0.0082
-
.
TRAC
3.3k
AAL
1
OOk
$$$ -
1 OOk
I
1,,
3.3k
KING GAIN ADJ. JIG
I
Figure 13-1
1 kohm
;-i-
CH-2
i
SIGNAL
GENERP
1 kHz
,TOR
10
0%
I
!
!
’ i jj
I
..
+
/
/
-
- 2.3
1.5
VP - P
1
-
-
Figure 13-2
TP2or4-
A
(V) CH-1
v
I
n
3l~i\AL
-
,,,vLRATOR
I kHz
1 Vrms
1 kohm
The jig (BPF) are recommended to reduce high frequency nois
during alignment. As an alternative, two 1 kohm resistors can
be used to achieve the same results.
Figure 13-3
CD SERVO PWB (TOP VIEW)
%
)
BARANCE
I
A-
Figure 13-4 EXTENSION CABLE
]
-j
FOCUS
GAIN/
nt
Cabmet
^. .^_
R37
,+(fR
,‘/’
‘;\
,<:I ICI ”
R36
.‘\
‘\’
,,+’
x/:x
Figure 13-5 ADJUSTMENT POINTS
L-
SLIDE
t.0TOR
t.41
SPIN
WOTOR
Mz
LOAD I NG
PICKUP UNlT
o-
PlC&j=
IN
d
ALPC
LASER
POWER
CONTROL
LA6524
-RACK I NC
/FOCUS
DR I VER
LASER-
DRIVER c,. 3V
IC7
“RI
z%,” ’ NG
BALANCE
TRACK I NG FOCUS
VR2
GAIN
ICI
LA921
SERVO AMP.
“R3
GAIN
1M
T T. DISC NO.
SENSOR
I
1
vss
PHT,
“.
CD CONTROL
MICROCOMPUTER
IC4
1 XOOO7P
E
;:
FRW AUDIO
FROM IC501QPlN
SECTiON
+7.
+5vcDl
AUDiO
L-CH
R-CH
3v
REGULATOR
CONSTANT
VOLTAGE
VOLTAGE
REGULATOR
E
SECTION
El
Figure 14 BLOCK DIAGRAM (l/2)
-14-
I
II
/
1
I
I r---i
I I
I
II
r ------
-
---- -_------
I
J
_
IL
----
____zz
________-
---------
- --r
- - -i
I
- I
I”-I
-
I
ttiittt1t
v
1
2
I
3
I
-23-
4
I
5
6
I
Figure 23 WIRING SIDE OF P.W.BOARD (2/3)
I
7
8
I
9
-24-
10
11
I
I
12
I
r
&
c
-
PLAYBACK SIGNAL
A
B
C
D
E
-
RECORD SIGNAL
F
G
I-
L
I
IHI
L
. NOTES ON SCHEMATIC DIAGRAM can be found on page 34.
1
I
--___-_-_--_-_-_---___--_-_-.__~--
3
2
I
I
-29-
4
6
I
6
I
Figure
I
29 SCHEMATIC
7
DIAGRAM
(415)
I
I NVERTER
_------------------_-_---
6
I
9
-
I
10
-3o-
11
I
12
I
arr
B.
I/ 1
at
I I
I
I
HF
0
,“/Di.
O.S!LSaC/Di
FRF
0.5V/Dl”
50* sac/Dl. <DC>
FE
0.
IV/Di”
sao/Di”(DC)
50Ul
STOP-PLAYBACK
PO0
0.2V/Ol”
o.5u..~/Di.(DcI
STOP-
PLAYBACK
WAVWFORMS OF CD CIRCUIT
STOP-PLAYBACK
DATA
0
0.2V/Oi”
o.5*nac/oir
0.2V/Di”
0 2m
sac/Div(AC)
NOTES ON SCHEMATIC
l
Resistor.
To differentiate the units of resistors, such symbol as K and M
are used: the symbol K means 1000 ohm and the symbol M
means 1000 kohm and the resistor without any symbol is ohm-
type resistor.
l
Capacitor:
To indicate the
P means micro-micro-farad and the unit of the capacitor without
such a symbol is microfarad. As to electrolytic capacitor, the
expression “capacitance/withstand voltage” is used.
(CH),(TH),(RH),
(ML): Mylar type
(P.P.): Polypropylene type
l
Schematicdiagram and Wiring
are subject to change for improvement without prior notice.
REF. NO
SW1
SW2
SW101
SW401
SW501
SW502 F
Bwdes,
unit
(LJJ):
PICKIP IN
L
.OADING
RECORD/PLAYBACK
DUBBING SPEED
FAST FORWARD
..-. _
IEWIND
IEPEAT
IANDOM
_ /LAY
1
CD-MEMORY
UNlNG DOWN
the one with “Fusible” is a fuse type.
of capacitor, a symbol P is used: this symbol
Temperature compensation
Sideof P.W.Boardforthismodel
DESCRIPTION
POSITION
1
OFF
1
OFF
PLAYBACK
NORMAL
OFF
OFF
OFF
OFF
OFF
(
OFF
I
OFF1
DIAGRAM
+
The indicated voltage in each section is the one measured by
Digital Multimeter between such a section and the chaws with
no signal given.
1.
In the tuner section,
( )
indicates AM and < >
in the FM ST mode.
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
( )
indicates the record state.
4. In the power section, a tape is being
5. In the CD
l
Parts marked with
thesafetyoftheset. Besureto replacetheseparts withspecified
ones for
sectton,
( )
indicates CD playback.
maintaining
mdlcates
FM MONO
played
the CD is stopped.
‘s( r - 1)
the safety and performance of the set.
are important for maintaining
back.
FRF
0.5v/oi*
O.Sssc/Dir(OC)
FOCUS COIL
0.
IV/Oi*
4
5rso/oir
STOP-
PLAYBACK
(DC)
-33-
SW517
SW518
SW520 CD
\
,
5 1
BAND
PRESET DOWN
PRESET UP
I
/
-
2sc2001
2502458
2SC2001
2SC53.5
2SA1015
RN1202
OFF
OFF
OFF
OFF
I
L
RN1 204
GR RN1207
K
RN2202
C
RN2204
GR
2SC2389 SS
2SC1740
Figure 34 TYPES OF TRANSISTOR
I
SR
-34-
BCE
2SD2012
2581375
TROUBLESHOOTING (CD SECTION)
When the CD section does not operate
When the CD section dose not operate When the objective lens of the optical pickup is dirty, this section may not operate. Clean the
objective lens, and check the playback operation. When this section does not operate even
items. Remove the cabinet and follow the troubleshooting instructions.
“Track skipping
Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below.”
1.
Turn the power off.
2. Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Note:
Do not touch the lens with the bare hand.
1
Turn the power switch on the unit to ON.
and/or
no TOC(Table Of Conetents) may
becaused
by a build up of dust other foreign matter on the laser pickup lens.
afterthe
above step is taken, check the following
When the CD mode is entered, does the LCD change from
displaying “CD” to the function display “01 O:OO”?
Does the CD mechanism move down? Does the turntable
rotate?
Does the spin motor run?
When the disc is initialized, is TOC read?
Is TOC set to the playback mode?
Is there any audio
output
/
i
OK
Yes
-w
Check the item of “The CD microcomputer circuit
No
No
No
No
No
No
ates improperly”.
. . Check the item of “The CD mechanism moves up or down
improperly”.
Check the item of “The turntable operates improperly”.
b
Check the item of “The mechanism up operation is not
being detected”.
Check the item of ‘The spin motor does not run.”
Check the item of “The disc does not playback.”
Check the audio circuit.
oper-
1
-35-
l
The CD microcomputer circuit operates improperly.
Turn the power switch to ON.
1
Check the power circuit voltage.
Is the oscillating circuit
(XLI)
of the control microcomputer (IC4)
operating normally?
1
F
-
Check the XL1 and peripheral circuits and replace faulty
No
parts.
Check to see that the reset circuit of the control microcomputer
(lC4) is operating normally.
Defective replace faulty parts.
Normal
Is the drive signal of the LCD
being
output from the
control
microcomputer(lC4)?
Yes
Are the connector and PWB pattern damaged?
Normal
OK
:
A..
* The CD mechanism mcwes up
odown4mpreperly.
,;r
Is one of the motor drive output pins 15and17of microcomputer
(IC4)
held “I-“?
Is there any output between
Is
the loading motor rotating?
p
Check the reset circuit (IC6) and peripheral circuits and
The microcomputer (IC4) is defective. Replace it.
j,.
The microcomputer (IC4) is defective. Replace.
The motor drive IC (IC8) is defective. Replace.
The loading motor (M3) is defective. Replace.
I
I
I
Belt slip: Clean the pulley belt.
Replace the belt.
‘0 The turntable operates improperly.
Are the plunger suction output pin 55 of microcomputer (IC4)
held “L”?
Yes
Is +B(7.5 V) being output to pin
The plunger and suction mechanism are defective.
Replace the plunger or the drive mechanism.
-36-
b
The turntable shutter, sensor
No
(PHT
1,2)
are defective. Replace.
The microcomputer (IC4) is defective. Replace.
No
The plunger driver circuits (Q2) are defective. Replace.
(Note 1)
Disc No.
input terminal state of
microcomputer
PWBs
and sensors
1 2 3 4
Pin 21
Pin 22 H L H
H H L H H
5
H L
l
The mechanism up operation is not being detected.
Has the mechanism up detection input pin 18 of
microcomputer (IC4) changed to
‘IL”?
r
)
The mechanism up switch or detection mechanism is
No
defective. Replace.
Has the motor drive output of microcomputer (IC4) been turned
-
The microcomputer (IC4) is defective. Replace.
OFF (pins 15 and 17: “H”)?
Yes
The motor drive IC
Spin
motor M2 is defective. Replace it.
I
l
The&~ d&$ot p&@&k.
(IC8)
is defective. Replace’.
’ “~:.~f~.i. :;G~ ,: ,;: 1
:-
IC2
is defective. Replace it.
ICl
is defective. Replace it.
IC7
is defective. Replate it.
,
:
Is the disc initialized?Does the laser diode go on?
I
Yes
I I
A: Check the item of “The laser diode goes on.”
B: Check the item of “The laser diode does not go on.”
v
b
Does the tracking servo operate normally?
Is the EFM signal of pin 72 of ICI flat? (Lower side)
No
Check if the objective lens of the
pickup is dirty.
If it is dirty, clean it.
Does the spin motor run normally? Check the waveform of
pins 10
(CLV+)
and 11 (CLV-) of
lC2.
Normal
*
Is there any dropout part in the EFM signal of pin 72 of ICI?
Yes
Replace the disc or change the program.
Is the tracking error signal (
b
Is the tracking signal being out-
No
put from the pickup main unit?
Yes
v
Is the tracking coil drive output being output from the tracking -- IC7 is defective.
driver output (pin 2 of
IC7)?
No
The PWB negative pattern is damaged.
Normal
Yes
+
No
F
No
Replace the
I
IC2 is defective.
Replace it.
The pickup is
defective.
ICl.
Yes
The pickup connecting connector is broken.
The pickup tracking coil is broken.
-37-
*A:
The laser diode goes on.
When the CD Mecahnism moves up with-
Yes. Is
out loading disc, does the pickup lens move
up and down?
I
NO
the EFM signal of pin 72 of
being output?
Yes
ICl
No
l
Pickup height error
w
l
Laser diode output error
Are the voltages at pins 8 and 3 of the focus
driver (IC7) +7.5V and -7.5V, respectively?
Yes
Is the high/low level repetition output for
leading the focus servo of pin 13 of
IC2
being output?
IC2
is defective.
7
of
Is the DRF disc
reflection
signal
pin 40 of the servo signal control
(ICl)
at a high level?
I
Yes
shown below?
Pin 40
DRF
Pin 26
FEAO
The servo amplifier
No
;d
The servo amplifier
i . .
(ICl
) is defective.
(ICl)
is defective.
,
Is the high/low repetition output being
output from pin 22 of
ICl?
No
The focus error
(ICl)
Replace it.
Yes
v
Is the high/low repetition output being
output from pin 1 of
Check connectors
IC7?
CNSIAIB
and
CNPl,2.
is defective.
Yes
Check to see that the focus circuit is normal and check the
distribution connector.
The focus driver (IC7) is defective. Replace it.
-38-
(IC4) at a low level?
Is the pickup returned to the innermost part?
Is the pickup in switch
(SWl)
turned to ON?
No
Yes
Yes
emitter voltage
The laser diode is defective.
Replace the pickup.
-L_
p
IS
pin 13 of ~4 at a low
level?
IC4 is defective. Replace it.
+5V?
Yes
Yes
No
No F.
Check the powercircuit.
,
SW1
is defective.
Replace it.
I
Check if pins 4 (SLM+) and 5
Check pin 33 of servo A
Check pin 9 of the slide
Check if there is voltage at CNP3,
1
Is there audio output?
Is there audio output fro
Yes
v
Checking the D/A circuit.
CNS3
and Ml.
IC4 is defective. Replace it.
The servo AMP.
The slide motor driver (IC7) is defective. Replace it.
I
b
l
No
Check sound coupling capacitors
(R-CH).
(ICl)
is defective. Replace it.
1 IT
C91
(L-CH) and C92
- 39 -
FUNCTION TABLE OF IC
IC501 RH-iX0006AWZZ (IX0006AW):
Tuner/System Control
67
68RESETRESET
69-80
In
this
unit, the
DISC SKIPP73
asterisk
so-s1 1
mark (*) is (open)
so-s1 1
terminal
with
H
L
L./H
terminal
output
InputReset input
output
which is connected to the outside.
-4o-
Disc skip key output
LCD segment output
IC501 RH-iX0006AWZZ (IX0006AW):
Tuner/System Control
INTl/Pll
INT2/P12
I
NT4/POO
KRO/PGO-
KR7/P73
CLOCKED
SERIAI
it
PROGRAM
COUNTER<131
ROM
PR
OGRAM
MEMORY
t
3064x8
q
ITS
I
i>
I
A
GENERAL
REG.
DATA
MEMOR
(RAM)
512x4
BITS
-T-r
I I
“.
Figure 41 BLOCK DIAGRAM OF IC
CPU
CLOCK
fLCD
LCDCI/P30
-41-
.
.
In this unit, the
terminal
with
asterisk
mark (*) is (open)
terminal
which is connected to the outside.
-42-
IC4 RH-iX0007AWZZ (IX0007AW
Pin No.
In this
/
Port NameTerminal name
unit, the terminal with asterisk mark (*) is (open) terminal which is connected to the outside.
9(2/2):
CD Control Microcomputer
InDut/OutDut
Function
IC4 RH-iX0007AWZZ (IX0007AW):
TIO
PTOO/P20
I NTTO
4
TI
1
PTOl/p21
2160X.3
s
I/PO3
so/P02
scK/pOl
INTO/P10
INTl/Pll
INTZ/P12
INT3/P13
I
NT4/POO
I NTERRUPT
CLOCK
OUTPUT
CONTROL
CD Control Microcomputer
ROM
PROGRAM
MEMORY
BI
TS
t
CLOCK
DIVIDER
CLOCKSTAND BY _
GENERATOR
:
\I
CONTROI
t
)ATA
MEMORY
512x4
BITS
r~,,
-r ?-L&K
I
Q
BlJFFER(l6)
v!$J
P73
PCuP22
Xlx2
VDD VSS RESET
Figure 43 BLOCK DIAGRAM OF IC
-43-
PN
PO
TEAO,
“REFP,
VREPB (
TESI(
ATSC (
USC-(
TPA+(
I I
) LC7860/65
)NC
1 CLK
ILPl
lvcoo
OK
20K
I
’ “COC
PDO-
PO0
“DD
EFMO
XEFMO
SLCO
*
1
I
MD
I. IA
2OK
LEVEL
SHIFT
#
cLv+
CLV-
FOCS
IFZD
HFL
TES
TQFF
TGL
IWLD
THDS (
TO+,
JPO,
SLEQ 2
TDO
4OP
1
i
11
1 OOP”
22K
1
OK
I II
CLY
- . .
27K
I
2OP ”
I
I
I
I
I
I
82K
ZOK
0-x-b
30K
t
P+
P-
VC
Figure 44 BLOCK DIAGRAM OF IC
-44-
------7
+
I
I
REF.NO.
ICl
IC2
IC3
IC4
I
IC6
IC7
ICB
IC9
IClOl
IC2.01
IC202
IC203
IC401
IC501
IC601
QL2
Q3
::01,102
QlO3-105
Q106
Q112,113
Q202
Q251
Q253-256
Q258
Q261
Q401,402
Q501
Q502
Q503
Q504,505
Q506
Q601--603
Q604
Q657
Q658.659
Q660
I
To have your order filled promptly and correctly, please furnish the following information.
NOTE:
Parts marked with “A” are Important for maintaining the safety of the set. Be sure to replace these parts
for maintaining the safety and performance of the set.
PART
NO. *
VHiLA921IMl-1
VHlLC7868KE-1 J
VHiTDA131lAPl J D/A Converter.TDA1311
RH-
iXQOO7AwZZ
VHiPST994D/-1
VHiLA6524//-1
92LiCTA729lS
92LlCAN78LQ5T J Constant Voltage
YZLIC-AN7345K J Playback and Record/
VHlTA7358AP-1 J FM Front End.TA7358AP
VHiTC9216P/-1
VHiLA1832//-I
VHiTDA7318/-1
RH-
!XQOQ6AwZZ
VHiSTK4132M-1 J Power Amp..STK413211
TRANSISTORS
VS2SAlOlSGR-1 J Silwxm,PNP,PSA1015 GRAB
VS2SCZOOl-L-1 J Silicon.NPN.ZSCZOOl L
VSRN2204///-1
VSZSC2458GR-1 J Silicon,NPN,ZSC2458 GRAB
VSRNl204///-I
VSZSCZOQI-K-1 J Sii&n.NPN.PSCPOO1 KAD
VSZSAlQlSGR~l J Silicon.PNP.ZSA1015 GR
VSRN1204///-1
92LRN2204TJ
VS2SC535-C-l
VSRN2202///-1
VS2SC174OSRm1
VSRN12041//-1
VSZSAlQlSGR-1 J
VSZSC535-Cl-1 J Sihcon.NPN.ZSC535 C
VSZSC2389SS-1 J Silicon,NPN,ZSC2389 SS
VSRN1204///-1
VSRNZZOZ///-1
VSRN1202//1-1
VSZSC1740SR-1 J Silicon,NPN,ZSC1740 SR
VSRN1204///-1
VSZSC174OSR-1
VSRN1207///-I
VSZSC2001-L-1 1 Silican.NPN.‘ZSCZOOl L
VSZSDZQlZ//-1
VSZSC2458GR-1 J Silicon,NPN,2SC2458 GR
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA