This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.
WARNING !
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1
BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR
CLASS 1.
A SPECIALLY INSTRUCTED PERSON SHOULD DO SERVICING OPERATION OF THE APPARATUS.
LABEL CHECK (For DLXJ/NC Type)
Printed on the Rear Panel
DLXJ/NC Type
1.Laser Interlock Mechanism
The position of the switch (S9501) for detecting loading
state is detected by the system microprocessor, and
the design prevents laser diode oscillation when the
switch (S9501) is pressed physically.
Thus, the interlock will no longer function if the switch (S9501)
is released physically and deliberatery .
The interlock also does not function in the test mode ∗.
Laser diode oscillation will continue, if pin 62 of
LA9240ML (IC1101) on the $M SERVO VCD Assy
mounted on the $M MECHANISM VCD is connected to
GND, or else the terminals of Q1101 are shorted to each
other (fault condition).
LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER: 5 mW
WAVELENGTH: 780 nm to 785 nm
Additional Laser Caution
2.When the cover is opened, close viewing of the objective
lens with the naked eye will cause e xposure to a Class
1 laser beam.
∗
: Refer to page 73.
2
Page 3
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
2. EXPLODED VIEWS AND PARTS LIST
NOTES:
Parts marked by "NSP" and can not be supplied.
•
The mark found on some component parts indicates the importance of the safety factor of the part.
•
Therefore, when replacing, be sure to use parts of identical designation.
Screws adjacent to
•
2.1 PACKING
4
V
K
O
A
L
R
A
O
K
E
S
DISC DISCDISC
F
S
C
L
E
E
P
P
.B
POWER
C
A
L
S
E
S
A
R
D
IS
P
P
L
A
G
Y
M
A
U
X
R
E
P
E
A
T
R
A
N
D
O
M
S
T
A
T
REMOTE
IO
N
C
ONTROL UNIT CU-XR025
M
O
N
O
B
A
N
D
5
1
2
15
14
XR-VS90SW
only
8(1/2)
3
6
12
11
mark on the product are used for disassembly.
(1) PACKING PARTS LIST
Mark No. Description Part No.
9(1/2)
9(2/2)
7
8(2/2)
1 Power CordSee Contrast table (2)
NSP6 Dry Cell Battery (R6P, AA)VEM-013
NSP11 Polyethylene BagZ21-038
2 FM AntennaADH7004
3 AM Loop AntennaXTB3001
4 Remote Control UnitXZN3107
5 Battery CoverXZN3104
7 Packing SheetAHG7053
8 Front PadXHA3018
9 Rear PadXHA3019
Note: The encircled numbers denote measuring point in the schematic diagram.
CN1003- Pin 1 :
1
PLAY MODE (RF)
H : 500nsec/div
(L)
(L)
B
B
2.0Vp-p
VREF
2/2
2/2
(CD)
B
2/2
(F)
(T)
(S)
(C)
(L)
CN1003- Pin 2 :
2
TEST MODE,
Tracking Open(TRER)
H : 5msec/div
1.0Vp-p
VREF:CN1003- Pin 3
C
: CD AUDIO SIGNAL ROUTE
: FOCUS SERVO LOOP LINE
: TRACKING SERVO LOOP LINE
: SPINDLE SERVO LOOP LINE
: CARRIAGE SERVO LOOP LINE
: LOADING SERVO LOOP LINE
1. Part numbers in PCB diagrams match those in the schematic
diagrams.
2. A comparison between the main parts of PCB and schematic
diagrams is shown below.
Symbol In PCB
Diagrams
BCE
BCE
D
Symbol In Schematic
Diagrams
BCEBCE
BCE
BCE
DGS
DGGSS
Part Name
Transistor
Transistor
with resistor
Field effect
transistor
Resistor array
3-terminal
regulator
4.1 FM/AM TUNER MODULE
B
FM/AM TUNER MODULE
A
3. The parts mounted on this PCB include all necessary parts for
several destinations.
For further information for respective destinations, be sure to
check with the schematic diagram.
4. View point of PCB diagrams.
Connector
P.C.Board
Capacitor
Chip Part
SIDE A
SIDE B
CN3051
F
4
C
FM/AM TUNER MODULE
A
VR6201
Q6203Q6204
(ANP7159-B)
SIDE A
D
(ANP7159-B)
Q6202 Q6201
IC6202
IC6201
SIDE B
42
A
Q6306
Q6304
Q6401
Q6402
Q6303Q6302Q6301
Q6214
Q6403
Q6404
Q6205
1234
Page 43
1
4.2 SECONDARY ASSY
234
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
SECONDARY
G
ASSY
CN1, CN2
H
T1
POWER TRANSFORMER
IC41
Q71
IC11 IC21
IC12
IC71
IC22
A
B
SECONDARY
G
ASSY
F
(XNP3025-C)
J11
SIDE A
C
D
(XNP3025-C)
SIDE B
G
1
2
3
4
43
Page 44
1
23
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
4.3 $M SERVO VCD, MOTOR, SW and TRADE ASSYS
A
TRADE ASSY
E
SW ASSY
D
LOADING
B
MOTOR
M
(XNP3011-A)
MOTOR ASSY
C
4
SERVO
MECHANISM
ASSY
(XNP3011-A)(XNP3011-A)
F
CN1053
$M SERVO VCD ASSY
B
Q1351
Q1352
Q1353
Q1354
IC1001
IC1401
IC1301
C
IC1201
Q1101
IC1701
IC1501
PICKUP
IC1752
ASSY
D
(XNP3027-B)
SIDE A
44
BCDE
1234
Page 45
1
234
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
A
B
$M SERVO VCD ASSY
B
IC1754
IC1755
IC1101
IC1751
C
D
(XNP3027-B)
SIDE B
B
1
2
3
4
45
Page 46
1
B
23
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
4.4 AF ASSY
4
A
AF ASSY
F
A
CN6201
B
G
C
D
J11
Q3081
VR2302
VR2301
Q2803
Q2804
Q31IC32IC51IC42Q3352Q3351IC3302
Q2801
VR2802 VR2801
46
F
1234
Page 47
5
678
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
B
CN1004
I
CN5502
I
CN5501
A
B
02 VR2301
02 VR2801
VR2303 VR2305
IC2301Q51Q52
VR2304 VR2306
DECK
MECHANISM
UNIT
(XNP3025-C)
C
D
SIDE A
IC3301IC3302
F
5
6
7
8
47
Page 48
1
Q
23
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
A
AF ASSY
F
B
4
C
D
48
IC5891
IC5892
Q2802
F
1234
Q53
Q2105
Q2306
Q3503 IC3502
Q3605-Q3608
Q3621
IC3501IC3301
Q3601
Q3603
Q3314
Q2204 Q2203
Q2301
Q2302
Q3313
IC2101
IC2201
Q3312
Q3311Q3353
Q3351
Q2202Q2102-Q2104
Page 49
5
678
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
A
B
4
Q3353Q2804-Q2807Q3354Q3101
Q3351Q3352IC42IC51IC32Q31
IC5751
5
6
IC3001Q2202Q5751 Q5752
Q3501 Q3502
IC3102Q3102
IC3101
(XNP3025-C)
7
SIDE B
F
8
C
D
49
Page 50
1
23
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
4.5 PRIMARY ASSY
A
PRIMARY ASSY
H
AC IN
LIVE
B
NEUTRAL
4
G
T1
POWER TRANSFORMER
C
IC81
IC82 Q81
(XNP3026-C)
I
D
J81
SIDE A
50
H
1234
Page 51
1
PRIMARY ASSY
H
234
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
A
B
C
(XNP3026-C)
D
SIDE B
H
1
2
3
4
51
Page 52
1
23
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
4.6 DISPLAY and BLUE LED ASSYS
A
BLUE LED ASSY
J
B
DISPLAY ASSY
I
4
F
CN5106
C
D
H
CN81
VR3931
52
IJ
1234
Page 53
5
678
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
A
DECK MECHANISM
UNIT
B
F
CN5105
C
(XNP3026-C)
SIDE A
VR3901VR3931
53
I
5
6
7
8
D
Page 54
1
5
23
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
A
DISPLAY ASSY
I
B
4
C
D
Q5658IC3931Q5825Q5826
54
I
1234
Q2906
Q2904
Q2903
Q2908
Q2907
Q2901
Q5556
Q2911
Q2910Q5501
IC5501Q5650-Q56
Q5502
Page 55
5
BLUE LED ASSY
J
678
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
A
B
IC3901Q5657
5
C
SIDE B
(XNP3026-C)
Q5827Q5602Q5650-Q5655Q5823
Q5822
Q5824
Q5604
Q5821
6
Q5601
Q5801
JI
7
8
55
D
Page 56
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
Mark No. Description Part No.
5. PCB PARTS LIST
NOTES:
MarkSymbol and Description
NSP
NSP
NSP
Parts marked by "NSP" and can not be supplied.
•
The mark found on some component parts indicates the importance of the safety factor of the part.
•
Therefore, when replacing, be sure to use parts of identical designation.
When ordering resistors, first convert resistance values into code form as shown in the following examples.
•
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).
Note:
Before adjusting, make sure there is no gap between L6401 and L6402. If there is a gap between them, bring them into contact with each other
first, and then make adjustments.
980 to 3098MHz
9818 ± 298MHzVR6201
L6402
T6401
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.
Adjust so that the indicator of TUNED IND.
starts to light up.
AM Tuner Section
• Set the mode selector to AM BAND.
• Connect the wiring as shown in Fig. 1.
Step
Note (∗1) : For the area using 10kHz step, frequency should be 1000kHz.
No.
1
Adjustment
Title
Front End
Sensitivity
AM SG (400Hz, 30% Mod.)
Frequency
(kHz)
999 (∗1)35 to 45999kHz (∗1)
Level
(dBµV/m)
60cm
Reception
Frequency
Display
Loop antenna
Adjustment
Location
T6201
Specifications
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.
64
AM SG
MPX SGFM SG
FM75Ω antenna terminal
Center
Fig.1 AM and FM Adjustment Wiring Diagram
FM/AM TUNER MODULE
AM
antenna
terminal
FM
antenna
terminal
AXX7041
YELLOW BLACK
L6401
Center
AM antenna terminal
PRODUCT
SIDE A
T6401
L6402
Fig.2 Adjustment Point
T6201
Pin 20
DC
Voltmeter
IC6201
VR6201
Page 65
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
g
AM Tuner SW Section (XR-VS90SW and XR-VS70SW only)
• Set the mode selector to SW2.
• Connect the wiring as shown in Fig. 3.
Step
No.
1
Adjustment
Title
AM Front End
Sensitivity
AM SG
AM SG (400Hz, 30% Mod.)
Frequency
(MHz)
1425 to 3514 MHz
Level
(dBµV/m)
IEC dummy
R
125pF
Reception
Frequency
Display
AM antenna terminal
400pF320Ω
20µH
Adjustment
Location
L6303
Specifications
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.
PRODUCT
DC
voltmeter
R is 30Ω when SG output is 50Ω, 5Ω when SG output is 75Ω.
Fig. 3 SW Adjustment Wiring Diagram
FM/AM TUNER MODULE (AXQ7062)
AM
antenna
terminal
FM
antenna
terminal
GRAY BLACK
YELLOW BLACK
L6401
L6303
T6401
L6402
Fi
. 4 Adjustment Point
SIDE A
T6201
IC6201
Pin 20
VR6201
65
Page 66
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
6.2 CASSETTE DECK SECTION
6.2.1 For XR-VS90SW and XR-VS90
• Adjustment points and test points are shown in Fig. 5, Fig. 7 and Fig. 9.
Mechanical Adjustment
• Test tape : NCT-111 (3kHz, 30min).
1. Tape Speed Adjustment
No.ModeTest Tape
Deck Ι
1
PLAY
NCT-111
(Playback : 3kHz)
Adjusting
Points
ADJ. VR on
CASSETTE
MECHA (Fig. 5)
Measurement
TAPE TEST
POINT (Rch)
(AF Assy)
AF Assy
Points
Press the PLAY SW and adjust so that the reading
becomes 3000Hz ± 20Hz. Confirm that wow & flutter
level is below 0.3% (in the reverse direction, confirm
that the reading is within 3000Hz ± 60Hz).
Front Side
Adjustment ProcedureRemarks
Tape Speed
ADJ. VR
Cassette
Mechanism
Section
(Side View)
Fig. 5 Tape Speed ADJ. Point
Electrical Adjustment
Check the following before starting.
(1) Confirm that the tape speed adjustment has been completed.
(2) Clean the heads and demagnetize them using a head eraser.
(3) Set the measurement level to 0 dBV = 1 Vrms.
(4) Use the specified tape for adjustment. Use the labeled (A)
side of the test tape.
STD-331E : For playback check
STD-632 : Normal blank tape
(5) Provide yourself with the following measuring devides:
• AC millivoltmeter
• Low-frequency oscillator
• Attenuator
• Oscilloscope
(6) Adjust both right and left channels unless otherwise specified.
(7) Turn the DOLBY NR switch off unless otherwize specified.
(8) Warm up the unit for several minutes before adjustment.
In particular, be sure to warm up the unit in the REC/PLAY
mode for 3 to 5 minutes before starting recording/playback
frequency characteristics adjustment.
(9) Always follow the indicated adjustment order.
Otherwise, a complete adjustment may not be achieved.
Playback Adjustment (Decks Ι and ΙΙ)
(1) Head Azimuth Adjustment
(2) Playback Level Adjustment
After adjustment, apply silicon bond to
the head azimuth adjustment screw.
63Hz 40Hz
Hz
Remarks
dB
(2) Playback Level Adjustment
• Since this adjustment determines playback dolby NR level, perform it carefully.
StepMode
1
PLAY
Input Signal/
Test Tape
STD-331E test tape
(Playback: 315Hz, 0dB)
Adjusting Points
Deck Ι
Deck ΙΙ
VR2303 (L ch)
VR2304 (R ch)
VR2305 (L ch)
VR2306 (R ch)
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
Adjustment
Value
– 3.7dBV
PLAYBACK
25010k
3dB3dB 4dB
RECORDING
25010k
3dB3dB 5dB
Remarks
12.5k
12.5k
REV Azimuth Adjustment Screw
Fig. 7 Head Azimuth Adjustment Screw
FWD Azimuth Adjustment Screw
Fig. 8 Frequency Characteristics
67
Page 68
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
Recording Adjustment
(1) Bias Oscillation Frequency Adjustment
StepMode
1REC
Input Signal/
Test Tape
Load the STD-632 test
tape and set the
recording mode.
Adjusting Points
Deck Ι
Deck ΙΙ
(AF Assy)
L2801
(2) Recording Bias Adjustment
• Since this adjustment affects recording bias, prevent distortion from increasing due to underbias.
StepModeInput Signal/Test TapeAdjusting Points
1REC
Input a 315 Hz signal to the
AUX terminal and set the input
selector to AUX.
Deck Ι
Deck ΙΙ
Measurement
Points
Between A
point Fig. 9
and GND
Input signal level
Adjustment
Value
Oscillation
frequency to be
105.0kHz ±
2kHz.
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
Remarks
If the REC/STOP button for four
seconds while the power is in STAND
BY mode, the frequency will decrease
2 to 3 kHz.
Adjustment ValueRemarks
– 23.7 dBV
2
REC →
PLAY
Load the STD-632 test tape and
record/playback the 315Hz and
10kHz signals
(see the Note below)
Deck Ι
Deck ΙΙ
VR2801 (L ch)
VR2802 (R ch)
TAPE TEST
POINT (L, Rch)
(AF Assy)
Note : Set the 10 kHz input signal level to the same value as the 315 Hz input signal level of step 1.
(3) Recording Level Adjustment
StepModeInput Signal/Test TapeAdjusting Points
1REC
REC →
2
PLAY
Input a 315 Hz signal to the
AUX terminal and set the input
selector to AUX.
Load the STD-632 test tape and
record/playback the 315Hz
signal.
Deck Ι
Deck ΙΙ
Deck Ι
Deck ΙΙ
Input signal level
VR2301 (L ch)
VR2302 (R ch)
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
TAPE TEST
POINT (L, Rch)
(AF Assy)
(4) ALC Operation Check
StepModeInput Signal/Test TapeAdjusting Points
1
2
REC/
PAUSE
Input a 315 Hz signal to the
AUX terminal and set the input
selector to AUX.
Input signal level
Set to a level + 10dB above the
input level at step 1.
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
Repeat adjustment until playback level
of the 10kHz signal is within 0 ± 0.5 dB
from that of the 315Hz signal.
Adjustment ValueRemarks
– 7.7 dBV
Repeat recording, playback and
adjustment until playback level of the
315 Hz signal becomes – 7.7 dBV.
Adjustment ValueRemarks
– 8.2 dBV
Confirm that the reading is
– 2.2 ± 2.5 dBV.
68
Page 69
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
AF ASSY
SIDE A
L2801
A
VR2302
VR2802
TAPE TEST
POINT
L chR ch
VR2301
VR2801
VR2303 VR2305
VR2304
VR2306
FRONT
Fig. 9 Adjustment and Measurement Points
69
Page 70
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
6.2.2 For XR-VS70SW and XR-VS70
• Adjustment points and test points are shown in Fig. 10, Fig. 12 and Fig. 13.
Mechanical Adjustment
• Test tape : NCT-111 (3kHz, 30min).
1. Tape Speed Adjustment
No.ModeTest Tape
Deck Ι
1
PLAY
NCT-111
(Playback : 3kHz)
Adjusting
Points
ADJ. VR on
CASSETTE
MECHA
(Fig. 10)
Measurement
TAPE TEST
POINT (Rch)
(AF Assy)
AF Assy
Points
Press the PLAY SW and adjust so that the reading
becomes 3000Hz ± 20Hz. Confirm that wow & flutter
level is below 0.3% (in the reverse direction, confirm
that the reading is within 3000Hz ± 60Hz).
Front Side
Adjustment ProcedureRemarks
Tape Speed
ADJ. VR
Cassette
Mechanism
Section
(Side View)
Fig. 10 Tape Speed ADJ. Point
Electrical Adjustment
Check the following before starting.
(1) Confirm that the tape speed adjustment has been completed.
(2) Clean the heads and demagnetize them using a head eraser.
(3) Set the measurement level to 0 dBV = 1 Vrms.
(4) Use the specified tape for adjustment. Use the labeled (A)
side of the test tape.
STD-331E : For playback check
STD-632 : Normal blank tape
(5) Provide yourself with the following measuring devides:
• AC voltmeter (Noisemeter : filter off)
• AC millivoltmeter
• Low-frequency oscillator
• Attenuator
• Oscilloscope
(6) Adjust both right and left channels unless otherwise specified.
(7) Warm up the unit for several minutes before adjustment.
In particular, be sure to warm up the unit in the REC/PLAY
mode for 3 to 5 minutes before starting recording/playback
frequency characteristics adjustment.
(8) Always follow the indicated adjustment order.
Otherwise, a complete adjustment may not be achieved.
Playback Adjustment (Decks Ι and ΙΙ)
(1) Head Azimuth Adjustment
Recording Adjustment (Deck ΙΙ)
(1) Bias Oscillation Frequency Adjustment
(2) Recording Bias Adjustment
∗ As the reference recording level is 250nwb/m for STD-331E,
the recording level will be higher by 4 dB for STD-331B
(160nwb/m). When adjusting, pay carefull attention to the type
of tape used.
10kHz
6.3
8kHz4kHz 2kHz
kHz
1kHz
500Hz250Hz125
Hz
63Hz 40Hz
–20
dB
70
Fig. 11 STD-331E Test Tape
Page 71
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
REV Azimuth Adjustment Screw
FWD Azimuth Adjustment Screw
Fig. 12 Head Azimuth Adjustment Screw
Playback Adjustment
(1) Head Azimuth Adjustment
• Do not switch between forward and reverse operation with the screwdriver inserted.
StepMode
1PLAY
Input Signal/
Test Tape
STD-331E test tape
(Playback: 10kHz,
–20dB)
Adjusting Points
Deck Ι
Deck ΙΙ
Head azimuth
adjustment
screw (Fig. 12)
Measurement
Points
TAPE TEST
POINT (L, Rch)
(AF Assy)
Recording Adjustment
(1) Bias Oscillation Frequency Adjustment
StepMode
1REC
Input Signal/
Test Tape
Load the STD-632 test
tape and set the
recording mode.
Adjusting Points
Deck Ι
Deck ΙΙ
(AF Assy)
L2801
Measurement
Points
Between A
point Fig. 13
and GND
Adjustment
Value
Max. playback
signal level
Adjustment
Value
Oscillation
frequency to be
105.0kHz ±
2kHz.
Remarks
After adjustment, apply silicon bond to
the head azimuth adjustment screw.
Remarks
(2) Recording Bias Adjustment
• Since this adjustment affects recording bias, prevent distortion from increasing due to underbias.
StepModeInput Signal/Test TapeAdjusting Points
1REC
REC →
2
PLAY
Load the STD-632 test tape and
record (No signal)
Load the STD-632 test tape.
Record the 315Hz and 10kHz
signals at –25dBV input level
(check B point) and playback.
Deck ΙΙ
Deck Ι
Deck ΙΙ
VR2802
(AF Assy)
VR2802
(AF Assy)
Note : No connecting to BIAS TP POINT at Step 2 REC → PLAY.
Measurement
Points
BIAS TP POINT
(AF Assy)
TAPE TEST
POINT (L, Rch)
(AF Assy)
Adjustment ValueRemarks
24V to 27V
Repeat adjustment until
playback level of the 10kHz
signal is within 0 ± 1.0dB
from that of the 315Hz
signal.
71
Page 72
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
FRONT
AF ASSY
SIDE B
TAPE TEST
POINT
R ch
VR2301
L ch
VR2802
VR2302
B
(VR is nothing)
L2801
BIAS TP POINT
A
Fig. 13 Adjustment and Measurement Points
72
Page 73
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
6.3 TEST MODE
NOTE: There is no information to be shown in this CD adjustment.
How to Start/Cancel Test Mode
TEST MODE : ON
TEST DISC: YEDS-7
STANDBY/ON
TEST MODE : PLAY
TEST DISC: YEDS-7
outwards
Pickup Move
inwards
TEST MODE : STOP CANCEL
Function CD
CD TEST
Short Point
STOP
"TEST 4"
Laser diode: LIGHTS UP
Focus servo: CLOSE
Spindle motor: START
Spindle servo: CLOSE
CD TEST
Short Point
CLOSEOPEN
Tracking servo:
STOP
STOP all operations.
Test Point
STANDBY/ON
DISPLAY ASSY
SIDE B
Bottom Side
73
Page 74
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 DISASSEMBLY
$M MECHANISM CD-2
1
Remove the Bonnet Case (Screws × 11)
Main Cam
Note: The loading tray can be pulled out
when the main cam is in this position.
(The Lock Lever should be in the
2
Fitting
Lock Lever
notch of the Main Cam.)
12
$M Mechanism CD-2
CD Assy
CN8204
10
CD Assy
CN8201
10
9
3
× 2
6
UnhookUnhook
11
7
OPTICAL
DIGITAL OUT
Cap Release
5
Tray
Cap
74
4
Unhook × 3
8
XR-A6800
Only
Page 75
FRONT PANEL
1
Unhook
PRIMARY Assy
H
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
2
Unhook
A
FM/AM TUNER
Module
F
AF Assy
Front Panel
SECONDARY Assy
G
$M MECHANISM CD-2 ADDITIONAL TO JOB
Mechanism Base (Bottom View)
Front Side
J
BLUE LED Assy
I
DISPLAY Assy
DECK Mechanism Unit
3
3
2
1
3
75
Page 76
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
Clamper Holder
Clamper Holder
Actuater
2
$M Mechanism CD
1
Hook
2
Actuater
Servo Base
1
Hook
Servo Mechanism
Assy
2
1
Hook
Servo Base
1
Hook
FITTING THE PULLEY INTO THE CARRIAGE MOTOR
For replacement of the carriage motor,
fit the motor pulley by using the servicing
pulley press-in station located on the loading
tray, as shown in the figure on the right.
Carriage Motor
Motor Pulley
Servicing pulley press-in station
Loading Tray
76
Page 77
XR-VS90SW, XR-VS90,XR-VS70SW, XR-VS70
7.2 PARTS
7.2.1 IC
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
the unit between standby and on. Indicator lights in
standby.
82
* Manufactured under licence from Dolby Labora-
tories. “Dolby” and the double-D symbol are
trademarks of Dolby Laboratories.
Page 83
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
Display
The illustration on this page shows the XR-VS90/
XR-VS90SW. Not all features are available on the
XR-VS70/ XR-VS70SW.
123
171816
1 Character display
2 Lights when the sleep timer has been set.
3 Lights when either the record timer or the wake up
timer has been set.
4 Lights during broadcast station reception.
5 Lights when the tuner is set to mono FM mode.
6 Lights when in beat cut 2 mode.
7 Lights when a CD/Video CD is playing.
8 Lights when the system is in CD/Video CD mode.
9 2 and 3 – Indicates the current tape play/record
direction.
or – Indicates the current tape deck, I or II.
10
Lights when Dolby Noise Reduction is switched
on.
11 – Lights when in one of the karaoke modes.
KEY –Lights when the pitch of the karaoke track
playing has been changed.
L R – Indicates which channels of the karaoke
track you’re hearing.
12
Lights when the tuner is receiving a stereo FM
broadcast in auto stereo mode.
13 Lights when recording to tape.
14 Lights during automatic recording of a CD.
15 Highlights during repeat play mode.
16 Highlights during program playback mode.
17 Highlights during random playback mode.
18 Sound morphing / Sound level display
1514 131210
4
5
6
7
11
98
83
Page 84
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
JOG
23
7
1
¡
4¢
VOLUME
TIME SEARCH
SELECT
PAUSE
SLEEP
LAST MEMO
DIGEST DISPLAY
MONO
REPEAT
RANDOM
CONTROL
PLAYBACK
CLOSE
TAPE I/IIAUXCD
TUNER/BAND
OPEN/
CHANGE
DISC
PREVIOUS
NEXT
RETURN
PROGRAM
STEP
SLOW
SHIFT
TV CHANNEL MUTE
MORPHING
AUDIO/VISUALL
KARAOKEKEY CONTROL
TV VOLUMETV
TV/VIDEO
CLEAR
123
>10
10/0
456
789
DISCDISCDISC
iI
Remote control
To learn about the function of a particular button,
look up the name of the button in the following
alphabetical list (buttons marked with symbols
appear first).
Press to switch the system on or into standby.
7 (Stop)
23 (Play/pause/reverse)
1 (Reverse scan/fast rewind/radio tuning)
¡
(Forward scan/fast forward/radio tuning)
– 4 (Reverse track skip/music search/preset
station select)
¢ +
(Forward track skip/music search/preset
station select)
>10
Use to select numbers over 10 (press this button,
then input the number using the other number
buttons).
10/0
Use as zero or 10 when entering numbers (for
track numbers and station presets).
1–9
Number buttons (for track numbers and station
presets).
A AUDIO/VISUAL
AUX
CCD
CLEAR
Press to clear the most recently programmed
track.
D DIGEST (SHIFT & 6)
DISC-1/2/3
DISC CHANGE
DISPLAY (SHIFT & >10)
J JOG
Use to morph between sound settings, and when
setting the clock or timer.
K KARAOKE
KEY CONTROL
L LAST MEMO (SHIFT & 5)
M MONO (SHIFT & 7)
MORPHING
MUTE
N NEXT +
O OPEN/CLOSE
P PLAYBACK CONTROL (SHIFT & 10/0)
PREVIOUS –
PROGRAM
R RANDOM (SHIFT & 9)
REPEAT (SHIFT & 8)
RETURN
S SELECT
SHIFT
Use to access secondary functions on the remote
control.
SLEEP (SHIFT & 4)
SLOW
(SHIFT & STEP E)
STEP E
T TAPE I/II
TIME SEARCH
TUNER/BAND
TV
TV CHANNEL +/–
TV VOLUME +/–
TV/VIDEO
V VOLUME +/–
Use to adjust the overall volume level.
84
Page 85
8.2 SPECIFICATIONS
XR-VS90SW, XR-VS90, XR-VS70SW, XR-VS70
Amplifier section
Continuous Power Output
RMS (1 kHz, T.H.D. 10%, 6 Ω)
XR-VS90/ XR-VS90SW
Front, Rear R, L (RMS)............................ 140 W per channel
XR-VS70/ XR-VS70SW
Front, Rear R, L (RMS)............................ 100 W per channel
Peak Music Power Output
XR-VS90/ XR-VS90SW ............................................. 3500 W
XR-VS70/ XR-VS70SW ............................................. 2500 W
CD section
Type . Video CD system and Compact Disc digital audio system
Wow and Flutter........................................Limit of measurement
(±0.001 % W.PEAK) or less (EIAJ)
Cassette deck section
Systems ............................................... 4 track, 2-channel stereo
Heads............................................ Recording/playback head x 1
Playback head x 1
Erase head x 1
Motor............................................................ DC servo motor x 1
Tape types........TYPE I (Normal) tape (XR-VS70/ XR-VS70SW)
TYPE I (Normal)/TYPE II (HIGH/CrO2) tape
(XR-VS90/ XR-VS90SW)
FM tuner section
FrequencyRange...................................... 87.5 MHz to 108 MHz