Sony HCD-D890AV User manual
– 1 –
MICROFILM
HCD-D890AV/XB55AV/
XB80AV/XB88AV
Canadian Model
HCD-D890AV
AEP Model
UK Model
HCD-XB80AV
E Model
HCD-XB88AV
Australian Model
HCD-XB55AV/XB88AV
SPECIFICATIONS
Photo: HCD-XB88AV
SERVICE MANUAL
COMPACT DISC DECK RECEIVER
— Continued on next page —
HCD-D890AV/XB55AV/XB80AV/XB88AV is
the tuner, deck, CD and amplifier section in
LBT-D890AV/XB55AV/XB80AV/XB88AV.
Model Name Using Similar Mechanism HCD-D670AV/N555AV
CD Mechanism Type CDM37L-5BD29AL
CDM37LH-5BD29AL
Base Unit Type BU-5BD29AL
Optical Pick-up Type KSS-213D/Q-NP
Model Name Using Similar Mechanism HCD-D670AV/N555AV
Tape Transport Mechanism Type TCM-220WR2
CD
SECTION
TAPE
DECK
SECTION
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 2 –
MODEL IDENTIFICATION
— BACK PANEL —
4-996-861-0
4-996-861-2
4-996-861-3
4-996-861-4
4-996-861-8
4-996-862-1
4-996-862-2
4-996-862-3
4-996-862-5
XR88AV : AR, E model
XR88AV : MX model
XR88AV : AUS model
XR88AV : SAF model
XB55AV : AUS model
D890AV : CND model
XB80AV :AEP, UK model
XB80AV : EE, CIS model
XB80AV : AEP model
PARTS No.
MODEL PRODUCT COUNTRY
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
INDONESIA PRODUCT
THAILAND PRODUCT
• Abbreviation
CND : Canadian model
EE : East European model
SAF : South Africa model
MX : Mexican model
AUS : Australian model
AR : Argentine model
Parts No.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 3 –
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
NOTES ON HANDLINGTHE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repain parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CDsection adjustment” andcheck
that the S curve waveform is output three times.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINE
WITH MARK !ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LESCOMPOSANTS IDENTIFIÉSPAR UNEMARQUE!SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT.NE REMPLACER CES COMPOSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS
SONT DONNÉS DANS CE MANUEL OU DANS LES
SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety checks before releasing the set to the customer:
Checkthe antennaterminals,metal trim,“metallized” knobs,screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE
TheAC leakage from any exposed metal part to earth Ground and
from all exposed metal parts to any exposed metal part having a
returnto chassis, mustnot exceed 0.5 mA(500 microampers). Leak-
age current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of aVOM
or battery-operatedAC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2VAC range are suitable. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
The following
caution label is
located inside of
the unit.
0.15
µ
F
To Exposed Metal
Parts on Set
1.5k
Ω
AC
voltmeter
(0.75V)
Earth Ground
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 4 –
SECTION 1
GENERAL
TABLE OF CONTENTS
LOCATION OF PARTS AND CONTROLS
6-9. Printed Wiring Board – Main Section – .............................. 43
6-10. Schematic Diagram – Main (1/5) Section – ..................... 45
6-11. Schematic Diagram – Main (2/5) Section – ..................... 47
6-12. Schematic Diagram – Main (3/5) Section – ..................... 49
6-13. Schematic Diagram – Main (4/5) Section – ..................... 51
6-14. Schematic Diagram – Main (5/5) Section – ..................... 53
6-15. Printed Wiring Board – Deck Section – ........................... 55
6-16. Schematic Diagram – Deck Section – .............................. 57
6-17. Printed Wiring Board – Power Section – .........................59
6-18. Schematic Diagram – Power Section – ............................ 61
6-19. Schematic Diagram – Panel Section – .............................63
6-20. Printed Wiring Board – Panel Section – ........................... 65
6-21. Printed Wiring Board –TC/CD Panel-1 Section –........... 67
6-22. Schematic Diagram – TC/CD Panel-1 Section – ............. 69
6-23. Schematic Diagram – HP/Mic Section –.......................... 71
6-24. Printed Wiring Board – HP/Mic Section – ....................... 73
6-25. Printed Wiring Board – CD Motor Section – ...................75
6-26. Schematic Diagram – CD Motor Section –...................... 77
6-27. Printed Wiring Board –Trans Section – ...........................79
6-28. Schematic Diagram – Trans Section – .............................81
6-29. Printed Wiring Board – Surround Section –..................... 83
6-30. Schematic Diagram – Surround Section – ....................... 84
6-31. IC Block Diagrams ........................................................... 85
6-32. IC Pin Functions ............................................................... 92
7. EXPLODEDVIEWS
7-1. Case and Back Panel Section ............................................ 100
7-2. Front Panel Section 1 ........................................................ 101
7-3. Front Panel Section 2 ........................................................ 102
7-4. Chassis Section ................................................................. 103
7-5. TC Mechanism Section-1 (TCM-220WR2) ..................... 104
7-6. TC Mechanism Section-2 (TCM-220WR2) ..................... 105
7-7. TC Mechanism Section-3 (TCM-220WR2) ..................... 106
7-8. CD Mechanism Section
(CDM37L-5BD29AL/CMD37LH-5BD29AL) ................ 107
7-9. Base Unit Section (BU-5BD29AL) .................................. 108
8. ELECTRICAL PARTS LIST ...................................... 109
11/u button
2REC button
3t/CLOCK SET button
4DAILY 1 button
5DAILY 2 button
6SLEEP button
7DISPLAY/DEMO button
8SPECTRUMANALYZER button
9Display Window
!º ENTER/NEXT button
!¡ TUNER MEMORY button
!™ TUNING MODE button
!£ TUNER/BAND button
!¢ TUNING (+/–) button
!∞ PTY button
(AEP, UK)
!§ STEREO/MONO button
!¶ Equalizer indicators
!• MIC LEVEL knob
!ª MIC jack
@º DSP button
@¡ WAVE button
@™ PROLOGIC button
@£ KARAOKE PON/MPX button
@¢ P FILE MEMORY button
@∞ PHONES jack
@§ EFFECT button
@¶ FUNCTION button
@• GROOVE button
@ª VOLUME control
#º SUPER WOOFER button
(XB80AV/XB88AV)
#º DBFB button (D890AV/XB55AV)
#¡ GEQ control buttons
#™ GEQ CONTROL button
#£ SUPER W MODE button
(XB80AV/XB88AV)
#¢ ENTER button
#∞ DeckA ª, ·button
#§ DeckA pbutton
#¶ DIRECTION button
#• DOLBY NR button
#ª DeckA 0, )button
$º DeckA 6EJECT button
$¡ Deck B pbutton
$™ Deck B ª, ·button
$£ Deck B 0, )button
$¢ Deck B rREC button
$∞ Deck B Pbutton
$§ CD SYNC button
$¶ H SPEED DUB button
$• Deck B 6EJECT button
$ª 6OPEN button
%º CD ·button
%¡ CD pbutton
%™ CD Pbutton
%£ DISC SKIP button
%¢ DISC1-DISC5 buttons
%∞ NON-STOP button
%§ LOOP button
%¶ FLASH button
%• 1/ALL DISCS button
%ª PLAY MODE button
^º CD 0, )button
^¡ REPEAT button
^™ EDIT button
^£ ≠AMS ±dial
1. GENERAL ..........................................................................4
2. DISASSEMBLY
2-1. Front Panel ........................................................................... 6
2-2. Main Board ........................................................................... 6
2-3. Tape Mechanism Deck ..........................................................7
2-4. Cassette Lid Assembly .......................................................... 7
2-5. CD Lid Assembly ..................................................................8
2-6. CD Mechanism Deck ............................................................8
2-7. Base Unit ..............................................................................8
2-8. Disc Table ............................................................................. 9
3. SERVICE MODE ............................................................10
4. MECHANICAL ADJUSTMENTS ..........................12
5. ELECTRICAL ADJUSTMENTS ............................... 12
6. DIAGRAMS
6-1. Circuit Boards Location ......................................................18
6-2. Brock Diagrams
• Tuner Section (AEP, UK model) ..................................... 19
• Tuner Section (East European, CIS model) ..................... 21
• CD Section ....................................................................... 23
• Deck Section ....................................................................25
• Main Section ....................................................................27
• Power Section .................................................................. 29
6-3. Printed Wiring Board – CD Section –.................................33
6-4. Schematic Diagram – CD Section – ................................... 35
6-5. Schematic Diagram
– Tuner Section – (AEP, UK model)................................... 37
6-6. Printed Wiring Board
– Tuner Section – (AEP, UK model)................................... 39
6-7. Printed Wiring Board
– Tuner Section – (East European, CIS model) ..................40
6-8. Schematic Diagram
– Tuner Section – (East European, CIS model) ..................41
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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– 5 –
Front Panel
178 9!º!¡ !£
!¢
!∞ !§
@§
@¶
@•
@ª
#¡
#£
#¢ #™
!¶
2
3
4
6
@º @™@£ @¢
@¡
@∞
#∞
#§
#¶
#ª
$º
$¡ $¶ $ª
$•
$¢
$£
%¢
%∞
%§
%¶
!™
#º
$™
$§
$∞
%º
%¡
%™
%£
^º
^¡
%ª%•
^™ ^£
5
!•
!ª
#•
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 6 –
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
2-1. FRONT PANEL
2-2. MAIN BOARD
1
Three flat type wiers
(CN401,CN402,CN701)
3
Front panel
2
Four screws (BVTP3x8)
4
Back panel
2
Eleven screws (BVTP3x8)
1
Flat type wire (CN1)
9
Main board
!º
Connector (CN961
)
6
Connector (CN830)
8
Connector (CN901)
7
Two screws (BVTP3x8)
5
Flat type wire (CN801)
3
Power cord
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 7 –
2-3.TAPE MECHANISM DECK
2-4. CASSETTE LID ASSEMBLY
3
Two brackets.
2
Two screws (BVTP2.6x8)
1
Two springs.
4
Cassette lid assembly
A
4
Three screws (BVTP2.6x8)
3
Three screws (BVTP2.6x8)
5
Remove the tape mechanism deck
section to direction of arrow
A
.
2
Open the cassette lid.
1
Push the two buttons.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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– 8 –
2-5. CD LID ASSEMBLY
2-6. CD MECHANISM DECK 2-7. BASE UNIT
2
Connector (CN671)
1
Four screws (BVTP2.6x8)
4
CD lid assembly
3
Connector (CN661
)
1
Five screws (BVTP3x8)
2
CD mechanism
deck
3
Base unit
1
Yoke bracke
t
2
Boss
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 9 –
2-8. DISC TABLE
NOTE:
When the disc table is installed, adjust the positions of
roller cam and mark”as shown in the figure, then set to
the groove of disc table.
A
A
2
Screw (BVTP3X8)
3
Bracket (BU)
1
Screw (BVTP3X8)
4
Stop screw
5
Disc tabl
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 10 –
SECTION 3
SERVICE MODE
MC Cold Reset
• The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the
customer.
Procedure:
1. Press three buttons SPECTRUMANALYZER , ENTER , and DISC 1 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.
CD Delivery Mode
• This mode moves the pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.
Procedure:
1. Press 1/ubutton to turn the set ON.
2. Press PLAY MODE button and 1/ubutton simultaneously.
3. A message “LOCK” is displayed on the fluorescent indicator tube, and the CD delivery mode is set.
MC Hot Reset
• This mode resets the set with the preset data kept stored in the memory. The hot reset mode functions same as if the power cord is plugged
in and out.
Procedure:
1. Press three buttons SPECTRUMANALYZER , ENTER , and DISC 2 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.
Sled Servo Mode
• This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the pick-up.
Procedure:
1. Select the function “CD”.
2. Press three buttons SPECTRUMANALYZER , ENTER , and FUNCTION simultaneously.
3. The Sled Servo mode is selected, if “CD” is blanking on the fluorescent indicator tube.
4. With the CD in stop status, press )button in CD section to move the pick-up to outside track, or 0button to inside track.
5. To exit from this mode, perform as follows:
1) Move the pick-up to the most inside track.
2) Press three buttons in the same manner as step 2.
Note:
• Always move the pick-up to most inside track when exiting from this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be chipped.
Change-over of FUNCTION Name
• The FUNCTION name of external input terminal can be changed over to VIDEO or MD. With the FUNCTION selected to “MD”, about
5dB mute is applied to the input gain.
Procedure:
1. Press 1/ubutton to turn the set OFF.
2. Press 1/ubutton together with FUNCTION button, and the power is turned on, the display of fluorescent indicator tube changes to
“MD” or “VIDEO” instantaneously, and thus the FUNCTION is changed over.
Change-over of AMTuner Step between 9kHz and 10kHz
• A step ofAM channels can be changed over between 9kHz and 10kHz.
Procedure:
1. Press 1/ubutton to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND button to select the BAND “AM”.
3. Press 1/ubutton to turn the set OFF.
4. Press ENTER/NEXT and 1/ubuttons simultaneously,and the display of fluorescent indicator tube changes to “AM 9k STEP” or “AM
10k STEP”, and thus the channel step is changed over.
LED and Fluorescent IndicatorTube All Lit, Key Check Mode
Procedure:
1. Press three buttons SPECTRUMANALYZER , ENTER , and DISC 3 simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
Press DISC 2 button, and the key check mode is activated.
3. In the key check mode, the fluorescent indicator tube displays “K 1 V0 J0”. Each time a button is pressed, “K”value increases. However,
once a button is pressed, it is no longer taken into account.
“J”Value increases like 1, 2, 3 ... if rotating JOG knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.
“V”Value increases like 1, 2, 3 ... if rotating VOLUME knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.
4. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.
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– 11 –
Aging Mode
This mode can be used for operation check of CD section and tape deck section.
• If an error occurred:
The aging operation stops.
• If no error occurs:
The aging operation continues repeatedly.
1. Aging Mode in CD Section
1-1. Operating procedure of Aging Mode
1. Set discs in DISC 1 and DISC 3 trays.
2. Select the function “CD”.
3. Press three buttons SPECTRUM ANALYZER , ENTER , and KARAOKE PON/MPX simultaneously.
4. The aging mode is activated, if a roulette mark on the fluorescent indicator tube is blinking.
5. In the aging mode, the aging is executed in a sequence given in “1-2. Operation duringAging Mode”.
The aging continues unless an alarm occurred.
6. To exit from the aging mode, press 1/ubutton to turn the set OFF.
• If a button other than buttons In CD section is pressed during aging, the aging in the CD section is finished.
• To execute aging to the tape deck section successively, press ·button in the deckA.
“AGING” is displayed on the fluorescent indicator tube. (For the aging in tape deck, see “2. Aging Mode in Tape Deck Section”.
1-2. Operation during aging Mode
In the aging mode, the program is executed in the following sequence.
1. The disc tray turns to select a disc. (For a disc selection sequence, see Section 1-3.)
2. TOC of disc is read.
3. The pick-up accesses to the last track.
4. Steps 1 through 3 are repeated.
1-3. Disc Selection Sequence
• During the aging mode, discs are selected in the following sequence:
Disc 1 →Disc 3
↑↓
Disc 3 ←Disc 1
2. Aging Mode in Tape Deck Section
2-1. Operating procedure of Aging Mode
1. Load a commercially available 10-minute tape into the decksA and B respectively.
(If a 10-minute tape is not available, another tape may be used but a cycle time will be longer.)
2. Select the function “TAPE”.
3. Rewind tapes in advance by pressing 0button respectively on decks A and B.
4. Press three buttons SPECTRUM ANALYZER , ENTER , and KARAOKE PON/MPX simultaneously.
5. Press ·button on deck A. (This button triggers the aging mode.)
6. The aging mode is activated if “AGING A” is displayed on the fluorescent indicator tube.
7. In the aging mode, the aging is executed in a sequence given in “2-2. Operation during Aging Mode”.
The aging continues unless an alarm occurred.
8. To exit from the aging mode, press 1/ubutton to turn the set OFF.
2-2. Operation during Aging Mode
In the aging mode, the program is executed in the following sequence.
1. A tape on FWD side is played for one minute.
2. PAUSE STOP is made.
3. Recording is made for 3 minutes. (For the deck not having the record function, the play is executed.)
4. FF is executed up to the end of tape.
5. A tape is reversed, and the tape on REV side is played for one minute.
6. PAUSE STOP is made.
7. Recording is made for 3 minutes. (For the deck not having the record function, the play is executed.)
8. FF is executed up to the end of tape.
9. Steps 1 through 8 are executed for the other deck.
10. Steps 1 through 9 are repeated unless an alarm occurred.
2-3. Deck Selection Sequence
• During the aging mode, decks are selected in the following sequence:
DeckA (FWD) →DeckA (REV)
↑↓
Deck B (REV) ←Deck B (FWD)
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TEL 13942296513 QQ 376315150 892498299
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– 12 –
SECTION 4
MECHANICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads pinch rollers
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demagne-
tizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power sup-
ply voltage unless otherwise noted.
Torque Measurement
2 to 6 g • cm
(0.02 - 0.08 oz • inch)
36 to 61 g • cm
(0.5 - 0.84 oz • inch)
Mode Torque meter
FWD
FWD
back tension
REV
FF/REW
REV
back tension
FWD tension
REV tension
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
36 to 61 g • cm
(0.5 - 0.84 oz • inch)
2 to 6 g • cm
(0.02 - 0.08 oz • inch)
61 to 143 g • cm
(0.85 - 1.99 oz • inch)
100 g or more
(3.53 oz or more)
100 g or more
(3.53 oz or more)
Meter reading
SECTION 5
ELECTRICAL ADJUSTMENTS
DECK SECTION 0 dB=0.775V
1. Demagnetizetherecord/playback headwithaheaddamagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjusted.
4. The adjustments should be performed with the rated power sup-
ply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in this
service manual. (As a general rule, playback circuit adjustment
should be completed before performing recording circuit adjust-
ment.)
6. The adjustments should be performed for both L-CH and R-CH.
7. Switches and controls should be set as follows unless otherwise
specified.
Record/Playback Head Azimuth Adjustment
(Deck A, Deck B)
Note: Perform this adjustments for both decks.
Procedure:
1. Mode : Playback
Signal Used forTape
Azimuth Adjustment
Tape SpeedAdjustment
Level Adjustment
10 kHz, –10 dB
3 kHz, 0 dB
315 Hz, 0 dB
P-4-A100
WS-48B
P-4-L300
test tape
P-4-A100
(10kHz, –10dB) main board
CN403
Pin
3
(L-CH)
Pin
1
(R-CH)
level meter
set
main board
CN403
Pin
2
(
GND
)
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– 13 –
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
Adjustment Location: Playback Head (DeckA)
Record/Playback/Erase Head (Deck B)
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw so
that outputs match within 1 dB of peak.
3. Mode: Playback
Tape Speed Adjustment (Deck A)
Note: Set the test mode using the following method and begin tape
speed adjustment.
Inthe testmode, thetapewill move atdoublespeed ornormal
speed each time the H SPEED DUB. button is pressed.
Procedure :
With the power turned ON, press the SPECTRUM ANALYZER
button, ENTER button, and EFFECT button simultaneously.
(The “VOLUME” on the fluorescent display tube will blink while
in the test mode.)
To exit the test mode, press the 1/ubutton.
1. Load WS-48B into deck B.
2. Play deck B.
3. Press the H SPEED DUB. button and play the tape at double
speed.
4. Adjust RV652 of the AUDIO board so that the reading of the
frequency counter becomes 6000 ± 180 Hz.
5. Press the H SPEED DUB. button and play the tape at normal
speed.
6. Adjust RV651 of the AUDIO board so that the reading of the
frequency counter becomes 3000 ± 90 Hz.
Adjustment Location: AUDIO board
SampleValue of Wow and flutter
W.RMS (JIS) less than 0.3%
(test tape: WS-48B)
Playback Level Adjustment (Deck A, Deck B)
Procedure:
Mode: Playback
Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301
(L-CH) and RV401 (R-CH)
so that adjustment within the following adjustment level.
Adjustment level:
CN403 playback level: 301.5 to 338.3 mV (–8.2 to –7.2 dB)
level difference between the channels: within ± 0.5 dB
Adjustment Location: AUDIO board
L-CH
peak
R-CH
peak
screw
position
output
level within
1 dB
L-CH
peak R-CH
peak
screw
position
within 1dB
test tape
P-4-A100
(10kHz, –10dB) oscilloscope
set
L
R
Waveform of oscilloscope
in phase 45
°
90
°
135
°
180
°
good wrong
main board
CN403
Pin
3
(L-CH)
Pin
2
(GND)
Pin
1
(R-CH)
reverse
forward
test tape
P-4-L300
(315Hz, 0dB) level meter
set
main board
CN403 Pin
3
(L-CH)
Pin
1
(R-CH)
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– 14 –
Record Bias Adjustment (Deck B)
Procedure:
INTRODUCTION
When set to the test mode performed in Tape Speed Adjust-
ment,when the tape is rewound after recording, the “REC memory
mode” which rewinds only the recorded portion and playback is
set.
This “REC memory mode” is convenient for performing this ad-
justment. During recording, the input signal FUNCTION will auto-
matically switch to VIDEO.
1. Press FUNCTION button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)
2. Load a tape into deck B, and press the rREC button.
3. Mode: Record
4. Mode: Playback
5. Confirm playback the signal recorded in step 2 become adjust-
ment level as follows.
If these levels do not adjustment level, adjust the RV341 (L-CH)
and RV441 (R-CH) on theAUDIO board to repeat steps 3 and 4.
Adjustment level:The playback output of 10 kHz level difference
against 315 Hz reference should be ± 1.0 dB.
Adjustment Location:AUDIO board
Record Level Adjustment (Deck B)
Procedure:
INTRODUCTION
When set to the test mode performed in Tape Speed Adjust-
ment, when the tape is rewound after recording, the “REC memory
mode” which rewinds only the recorded portion and playback is
set.
This “REC memory mode” is convenient for performing this
adjustment. During recording, the input signal FUNCTION will au-
tomatically switch toVIDEO.
1. Press FUNCTION button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)
2. Load a tape into deck B, and press the rREC button.
3. Mode: Record
4. Mode: Playback
5. Confirm playback the signal recorded in step 2 become adjust-
ment level as follows.
If these levels do not adjustment level,adjust the RV301 (L-CH)
and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4.
Adjustment level:
CN403 playback level: 47.2 to 53.0 mV (–24.3 to –23.3 dB)
Adjustment Location: MAIN board
Adjustment Location
[AUDIO BOARD] (Conductor Side)
AF OSC
VIDEO/MD (AUDIO) IN
1) 315 Hz
2) 10 kHz
blank tape
CS-123
set
attenuator 600
Ω
} 50 mV (–23.8 dB)
recorded
position level meter
set
main board
CN403 Pin
3
(L-CH)
Pin
1
(R-CH)
recorded
position level meter
set
main board
CN403 Pin
3
(L-CH)
Pin
1
(R-CH)
[MAIN BOARD] (Component Side)
CN403 IC401
13
RV351
Record Level
(R CH)
RV301
Record Level (L CH)
RV341(Lch),RV441(Rch)
Record Bias
RV301
RV401 RV441 RV341
RV301(Lch),RV401(Rch)
Playback Level (Deck B)
RV651 (Normal Speed)
RV652 (High Speed)
Tape Speed
RV651
RV311(Lch),RV411(Rch)
Playback Level (Deck A)
RV652
RV311
RV411
AF OSC
VIDEO/MD (AUDIO) IN
1) 315 Hz
2) 10 kHz
blank tape
CS-123
set
attenuator 600
Ω
} 50 mV (–23.8 dB)
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TEL 13942296513 QQ 376315150 892498299
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– 15 –
Procedure:
1. Supply a 25 dB 98 MHz signal from the ANTENNA terminal.
2. Tune the set to 98 MHz.
3. Adjust RV42 to the point (moment) when the TUNED indicator
will change from going off to going on.
Adjustment Location: TCB board
TUNER SECTION 0dB=1µV
Note 1: As a front-end (FE1) is difficult to repair if faulty, replace
it with new one.
Note 2: No adjustment is needed due to a tuner pack for except
AEP, UK, East European, CIS models.
AMTuned Level Adjustment
(AEP, UK, East European, CIS model only)
Note: FM Tuned Level adjustment should be performed after this
AM Tuned LevelAdjustment.
Setting:
Band: MW
Procedure:
1. Set the output of SSG so that the input level of the set becomes
55 dB.
2. Tune the set to 999 kHz.
3. Adjust RV41 to the point (moment) when theTUNED indicator
will change from going off to going on.
Adjustment Location: TCB board
FMTuned Level Adjustment
(AEP, UK, East European, CIS model only)
Note: This adjustment should be performed after the AM Tuned
LevelAdjustment.
Setting:
Band: FM
Adjustment Location
[TCB BOARD] (Component Side)
loop antenna
AM RF SSG
loop antenna
(Supplied accessories)
30% amplitude
modulation by
400Hz signal
Modulation: 999 kHz
60cm AM antenna
terminal (TM1)
set
Field strength dB (
µ
V/m) = SSG output level dB (
µ
V/m) –26dB.
FM ANTENNA terminal (TM1)
FM RF SSG
75
Ω
coaxial
Carrier frequency: 98MHz
Modulation: AUDIO 1kHz, 75kHz
deviation (100%)
Output level: 25dB (at 75
Ω
open)
set
RV41
AM Tuner Level
TM1
RV42
FM Tuned
Level
IC21
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TEL 13942296513 QQ 376315150 892498299
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– 16 –
FM Polar Adjustment (East European, CIS model only)
Connection 1 :
Connection 2 :
Procedure :
1. Set the modulation of FM RF SSG to AUDIO 1 kHz, 10 kHz
deviation according to “Connection 1”.
2. Tune the set to 69 MHz.
3. Adjust the RV1702 so that the reading of frequency counter con-
nected to TP1702 (VCO) becomes within 31.25 kHz ± 0.05 kHz.
(VCO adjustment)
4. Then record the reading of the level meter connected toTP1701.
5. Set the modulation of FM RF SSG to AUDIO 31.25 kHz, 10
kHz deviation according to “Connection 2”.
6. Tune the set to 69 MHz.
7. Set the CT1701 to be mechanical center.
8. Adjust the L1701 so that the reading of the level meter con-
nected to TP1701 (FILTER) becomes maximum.
Then adjust the CT1701 so that the reading of the level meter
connectedtoTP1701(FILTER) becomesmaximum.(SUB CAR-
RIER PEAK Adjustment)
9. Adjust the RV1701 so that the level at the moment becomes 14
dB higher value than the level recorded in step 4. (SUB CAR-
RIER LEVEL Adjustment)
[TCB BOARD] (Component Side)
Adjustment Location: TCB board
Adjustment Location:
[TCB BOARD] (Conductor Side)
FM antenna
terminal (75
Ω
)
FM RF SSG 75
Ω
coaxial
Carrier frequency: 69 MHz
Output level: 1 mV (60 dB
µ
) (at 75
Ω
open)
Modulation: AUDIO 1 kHz, 10 kHz deviation
set
FM antenna
terminal (75
Ω
)
Audio 31.25 kHz external
modulation
terminal
FM RF SSG
AF OSC 75
Ω
coaxial
Carrier frequency: 69 MHz
Output level: 1 mV (60 dB
µ
) (at 75
Ω
open)
Modulation: AUDIO 31.25 kHz, 10 kHz deviation
(EXTERNAL MODULATION)
set
frequency counter
level meter
TP1701
(FILTER)
TP1702
(VCO)
IC1701
L1701
CT1701 Sub Carrier Peak
RV1701
Sub Carrier
Level
IC1701
RV1702
VCO
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TEL 13942296513 QQ 376315150 892498299
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– 17 –
CD SECTION
Note:
1. CD Block is basically constructed to operate without adjustment.
Therefore, check each item in order given.
2. UseYEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩimpedance.
4. Clean theobject lensby anapplicatorwith neutral detergentwhen
the signal level is low than specified value with the following
checks.
S Curve Check
Procedure :
1. Connect oscilloscope to test point TP (FEO).
2. Connect between test pointTP (FOK) and Ground by lead wire.
3. Turn Power switch on.
4. Put disc (YEDS-18) in and turned Power switch on again and
actuate the focus search. (actuate the focus search when disc
table is moving in and out.)
5. Check the oscilloscope waveform (S-curve) is symmetrical be-
tweenAand B.Andconfirm peakto peaklevelwithin 3± 1Vp-p.
S-curve waveform
6. After check, remove the lead wire connected in step 2.
Note: • Try to measure several times to make sure than the ratio of
A : B or B :A is more than 10 : 7.
• Take sweep timeas longas possible andlightup thebright-
ness to obtain best waveform.
RF Level Check
Procedure :
1. Connect oscilloscope to test point TP (RF) on BD board.
2. Turned Power switch on.
3. Put disc (YEDS-18) in and playback.
4. Confirm that oscilloscope waveform is clear and check RF sig-
nal level is correct or not.
Note: Clear RF signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
RF signal waveform
Procedure:
1. Connect oscilloscope to test point TP (TEO) on BD board.
2. Turned Power switch on.
3. Put disc (YEDS-18) in to play the number five track.
4. Press the “P(Pause)” button.
5. Check the level B of the oscilloscope's waveform and theA (DC
voltage) of the center of the Traverse waveform.
Confirm the following:
• A/B x 100 = less then ± 7 (%)
• B = 500 ± 100 mVp-p
1 track jump waveform
Adjustment Location:
[BD BOARD] (Conductor Side)
E-F Balance (1Track Jump) check
oscilloscope
BD board
TP (FEO)
TP (VC)
symmetry
A
B
Within 3
±
1 Vp-p
oscilloscope
BD board
TP (RF)
TP (VC)
VOLT/DIV : 200mV
TIME/DIV : 500ns
level : 1.3
±
0.3 Vp-p
oscilloscope
BD board
TP (TEO)
TP (VC)
0V
Center of the waveform
B
Symmetry
A (DC voitage)
level : 500 mV
±
100 mVp-p
TP (RF)
TP
(FOK)
IC101
TP
(VC)
TP
(GND)
TP
(TEO) TP
(FEO)
IC103
IC102
IC102
CN101
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TEL 13942296513 QQ 376315150 892498299
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– 18 –
SECTION 6
DIAGRAMS
Note: pA is including in AUDIO board.
6-1. CIRCUIT BOARDS LOCATION
p
A
MOTOR board
LEAF SWITCH boar
d
BD board
LED board
CD MOTOR board
TABLE SENSOR board
AUDIO board
(including
p
A)
TRANS board
ENCAPSULATED COMPONENT(D890AV/XB55AV/XB88AV
)
TCB board(XB80AV)
SURROUND board
MAIN board
POWER board
CD-B1 SW board
CD-B2 SW board
TC-B SW board
TC-A SW board
HP/MIC board
PANEL board
DOOR SW board
CD-A SW board
CD-LED board
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TEL 13942296513 QQ 376315150 892498299
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– 19 – – 20 –
6-2. BLOCK DIAGRAMS
–TUNER SECTION – (AEP, UK model)
HCD-D890AV/XB55AV/XB80AV/XB88AV
TM1
AM
ANTENNA
FM 75Ω
COAXIAL ANT IN
ST +10V
Q5
VT
FE1
FM FRONT END
IF OUT
CF1
10.7MHz IF AMP
Q1, 2
CF2
10.7MHz IF AMP
Q3, 4
CF3
10.7MHz 1 FM IN
REG
FM/AM MPX
IC41
1710
09
PLL
IC21
11
FM
TUNED
LEVEL
15 13
30 14
RV42
21214 7
10
X42
450kHz
D41
FM SD
ADJ
OSC.BUFF
AM/FM
VCO STOP
IF BUFF
MUTE
AM
SD
AM
TUNED
LEVEL
12
RV41
2AM IF
IFT41 4
9
AM IF
DET
STEREO
TUNED
7
6
X41
10.7MHz
MUTE
STEREO
TUNED
23 22
FM DET OUT MPX IN 21
20
OUT L
OUT R
LPF
RCH
19 AMP IN L AMP
OUT
L
17
ST L
4
5
3 ST-CE
COM-DIN
COM-CLK
COM-DATA
A
MAIN
SECTION
CE
DI
CL
DO
1 24
X21
4.5MHz
AM MIX
AM
SD
628
5
2
15
17
16
14
12
13
29
26 25 24 23 22 21 20
9
LW SW
Q9
27
FE2
MW/LW FRONTEND
Q11
MW
SW
Q12
MW
SW
Q14
LW SW
Q13
MW
SW
AM OSC
AM RF IN
FM AFC
• R CH: Same as L ch
• SIGNAL PATH
: FM
: MW
RDS DATA
RDS INT
(Page 27)
6
FM
VT1
MW
MW
AM OSC
FM
VCO STOP
FM/AM IF
XIN
XOUT
3
4
13 14
2
16
IC1751 RDS DECODER
IC1752
X1751
4.332MHz
57
FM
ADJ
26
24
AM
DET
OUT
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 21 – – 22 –
–TUNER SECTION – (East European, CIS model)
HCD-D890AV/XB55AV/XB80AV/XB88AV
22 MPX IN
21
OUT L LPF 19
AMP
IN
L
AMP
OUT
L
17
4
5
3
6
ST-CE
COM-DIN
COM-CLK
COM-DATA
A
MAIN
SECTION
CE
DI
CL
DO
• R CH: Same as L ch
• SIGNAL PATH
: FM
: MW
D42 D43
13
FM LOW
SUB CARRIER
PEAK
L1701CT1701 TP1701 2
3
20
RV1701
SUB CARRIER
LEVEL
7
6
910
POLAR
DECODER
IC1701
IN
POUT
L OUT
R OUT
SUB IN
MON
VCO
ST IND
VCO
STOP
18 17
R CH
13
12
POLAR/PILOT
SWITCH
IC1702
14
9 11
L IN
L OUT
CA
R OUT 4R CH
SWITCH
Q1701
SWITCH
Q1702
SWITCH
Q1703
D1704
D1703
D1701
D1702
ST-L
STEREO
TUNED
MUTE
TP1702
RV1702
VCO
(Page 27)
TM1
AM
ANTENNA
FM 75Ω
COAXIAL ANT IN
ST +10V
Q5
VT
FE1
FM FRONT END
IF OUT
CF1
10.7MHz IF AMP
Q1-4
CF3
10.7MHz 1 FM IN
REG
FM/AM MPX
IC41
1710
09
PLL
IC21
11
FM
TUNED
LEVEL
15 13
30 14
RV42
21214 78
10
X42
450kHz
D41
AM/FM
VCO STOP
IF BUFF
MUTE
AM
SD
AM
TUNED
LEVEL
12
RV41
2AM IF
IFT41 4
9
AM IF
FM
DET
STEREO
TUNED
7
6
X41
10.7MHz
1 24
X21
4.5MHz
AM MIX
AM
SD
628
5
2
15
17
16
14
12
13
29
26 25 24 23 22 21 20
9
LW SW
Q9
27
FE2
MW/LW FRONTEND
Q11
MW
SW
Q12
MW
SW
Q14
LW SW
Q13
MW
SW
AM OSC
AM RF IN
FM
VT1
MW
MW
AM OSC
FM
VCO STOP
FM/AM IF
IF REQ
XIN
XOUT
3
OUT R RCH
20
ADJ
FM SD
ADJ
OSC.BUFF
FM AFC
26
23
FM DET OUT
24
AM
DET
OUT
POLA
L IN
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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