Sony HCD-BX6AV User manual

SERVICE MANUAL
COMPACT DISC DECK RECEIVER
US Model
Canadian Model
AEP Model
UK Model
HCD-BX6AV
E Model
Australian Model
HCD-DX6AV
SPECIFICATIONS
HCD-BX6AV/DX6AV
Photo: HCD-BX6AV
HCD-BX6AV/DX6AV is the Amplifier,
CD player, Tape player and Tuner
section in MHC-BX6AV/DX6AV.
Model Name Using Similar Mechanism HCD-BX2/DX2
CD Mechanism Type EXL-M7
Optical Pick-up Name OPTIMA-7
Model Name Using Similar Mechanism HCD-RXD6AV
Tape Transport Mechanism Type CWL-44-RR
CD
Section
Tape deck
Section
– Continued on next page –
AUDIO POWER SPECIFICATIONS:
(US model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohm loads both cha els drive , from
120-10,000 Hz; rates 10 watts per cha el
mi imum RMS power, with o more tha
10% total harmo ic distortio from 250
milliwatts to rated output.
Amplifier section
US model
Center Speaker:
Co ti uous RMS power output (refere ce)
40 watts
(6 ohms at 1 kHz,
10% THD)
Rear Speaker:
Co ti uous RMS power output (refere ce)
40 + 40 watts
(6 ohms at 1 kHz,
10% THD)
Canadian model
Front Speaker:
Co ti uous RMS power output (refere ce)
60 + 60 watts
(6 ohms at 1 kHz,
10% THD)
Total harmo ics distortio
Less tha 0.07%
(6 ohms at 1 kHz, 30 W)
Center Speaker:
Co ti uous RMS power output (refere ce)
40 watts
(6 ohms at 1 kHz,
10% THD)
Rear Speaker:
Co ti uous RMS power output (refere ce)
40 + 40 watts
(6 ohms at 1 kHz,
10% THD)
AEP, UK models
Front Speaker:
DIN power output (rated) 40 + 40 watts
(6 ohms at 1 kHz, DIN)
Co ti uous RMS power output (refere ce)
50 + 50 watts
(6 ohms at 1 kHz,
10% THD)
Music power output (refere ce)
100 + 100 watts
(6 ohms at 1 kHz,
10% THD)
Center Speaker:
DIN power output (rated) 25 watts
(6 ohms at 1 kHz, DIN)
Co ti uous RMS power output (refere ce)
35 watts
(6 ohms at 1 kHz,
10% THD)
Music power output (refere ce)
70 watts
(6 ohms at 1 kHz,
10% THD)
Rear Speaker:
DIN power output (rated) 25 + 25 watts
(6 ohms at 1 kHz, DIN)
Co ti uous RMS power output (refere ce)
35 + 35 watts
(6 ohms at 1 kHz,
10% THD)
Music power output (refere ce)
70 + 70 watts
(6 ohms at 1 kHz,
10% THD)
Other models:
The followi g measured at AC 120/240 V,
50/60 Hz
Front Speaker:
DIN power output (rated) 45 + 45 watts
(6 ohms at 1 kHz, DIN)
Co ti uous RMS power output (refere ce)
60 + 60 watts
(6 ohms at 1 kHz,
10% THD)
Center Speaker:
DIN power output (rated) 30 watts
(6 ohms at 1 kHz, DIN)
Co ti uous RMS power output (refere ce)
40 watts
(8 ohms at 1 kHz,
10% THD)
Rear Speaker:
DIN power output (rated) 30 + 30 watts
(6 ohms at 1 kHz, DIN)
Co ti uous RMS power output (refere ce)
40 + 40 watts
(6 ohms at 1 kHz,
10% THD)
I puts
MD/VIDEO IN: voltage 250/450 mV,
(pho o jacks) impeda ce 47 kilohms
DVD INPUT:
FRONT IN: voltage 450 mV,
(pho o jacks) impeda ce 47 kilohms
REAR IN: voltage 450 mV,
(pho o jacks) impeda ce 47 kilohms
CENTER IN: voltage 450 mV,
(pho o jacks) impeda ce 47 kilohms
WOOFER IN: voltage 450 mV,
(pho o jacks) impeda ce 47 kilohms
Outputs
PHONES: accepts headpho es of
(stereo mi i jack) 8 ohms or more
FRONT SPEAKER: accepts impeda ce of 6 to
16 ohms
REAR SPEAKER: accepts impeda ce of 6 to
16 ohms
CENTER SPEAKER: accepts impeda ce of 6 to
16 ohms
WOOFER: Voltage 1 V, impeda ce
1 kilohms
CD player section
System Compact disc a d digital
audio system
Laser Semico ductor laser
(λ=780 m)
Emissio duratio :
co ti uous
Laser output Max. 44.6
µ W*
*This output is the value
measured at a dista ce of
200 mm from the
objective le s surface o
the Optical Pick-up Block
with 7 mm aperture.
Ma ufactured u der lice se from Dolby
Laboratories Lice si g Corporatio .
Additio ally lice sed u der Ca adia pate t
1,037,877. “Dolby”, the double-D symbol ; a d
“PRO LOGIC” are trademarks of Dolby
Laboratories Lice si g Corporatio .
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

2
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED
LINE WITH MARK 0ON 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 PUB-
LISHED BY SONY. CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
Wavele gth 780 – 790 m
Freque cy respo se 20 Hz – 20 kHz (±0.5 dB)
Sig al-to- oise ratio More tha 90 dB
Dy amic ra ge More tha 90 dB
CD OPTICAL DIGITAL OUT
(Square optical co ector jack, rear pa el)
Wavele gth 660 m
Output Level –18 dBm
Tape player section
Recordi g system 4-track 2-cha el stereo
Freque cy respo se 40 – 13,000 Hz (±3 dB),
usi g So y TYPE I cassette
Tuner section
FM stereo, FM/AM superheterody e tu er
FM tuner section
Tu i g ra ge 87.5 – 108.0 MHz
A te a FM lead a te a
A te a termi als 75 ohm u bala ced
I termediate freque cy 10.7 MHz
AM tuner section
Tu i g ra ge
US, Ca adia models: 530 – 1,710 kHz
(with the i terval set at
10 kHz)
531 – 1,710 kHz
(with the i terval set at
9 kHz)
AEP, UK a d Middle Easter models:
531 – 1,602 kHz
(with the i terval set at
9 kHz)
Other models: 531 – 1,602 kHz
(with the i terval set at
9 kHz)
530 – 1,710 kHz
(with the i terval set at
10 kHz)
A te a AM loop a te a
A te a termi als Exter al a te a termi al
I termediate freque cy 450 kHz
General
Power requireme ts
US, C adia models: 120 V AC, 60 Hz
AEP, UK models: 230 V AC, 50/60 Hz
Australia model: 220 – 240 V AC, 50/60 Hz
Mexica model: 120 V AC, 60 Hz
Other models: 110 – 120 V or 220 – 240 V AC, 50/
60 Hz
Adjustable with voltage selector
Power co sumptio
US model: 160 watts
Ca adia model: 180 watts
AEP, UK models: 160 watts
Other models: 160 watts
Dime sio s (w/h/d)
Approx. 280 x 325 x 390 mm
Mass
US model: Approx. 9.2 kg
Ca adia model: Approx. 9.2 kg
AEP, UK models: Approx. 9.2 kg
Other model: Approx. 9.1 kg
Supplied accessories: AM loop a te a (1)
FM lead a te a (1)
Remote Comma der (1)
Speaker cords (2)
Ce ter speaker pads (4)
Desig a d specificatio s are subject to cha ge
without otice.
This applia ce is classified
as a CLASS 1 LASER
product. The CLASS 1
LASER PRODUCT
MARKING is located o
the rear exterior.
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 3
2. GENERAL
Location of Controls ....................................................... 4
Setting the Time .............................................................. 5
3. DISASSEMBLY ......................................................... 6
4. DIAGRAMS
4-1. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 11
4-2. Schematic Diagram – CD Section (1/4) – ..................... 12
4-3. Schematic Diagram – CD Section (2/4) – ..................... 13
4-4. Schematic Diagram – CD Section (3/4) – ..................... 14
4-5. Schematic Diagram – CD Section (4/4) – ..................... 15
4-6. Printed Wiring Boards – CD Section – ......................... 16
4-7. Printed Wiring Boards – MAIN Section – .................... 17
4-8. Schematic Diagram – MAIN Section (1/4) –................ 18
4-9. Schematic Diagram – MAIN Section (2/4) –................ 19
4-10. Schematic Diagram – MAIN Section (3/4) –................ 20
4-11. Schematic Diagram – MAIN Section (4/4) –................ 21
4-12. Printed Wiring Boards – PANEL Section – .................. 22
4-13. Schematic Diagram – PANEL Section – ....................... 23
4-14. Printed Wiring Boards
– AMP/POWER SUPPLY Section – ............................. 24
4-15. Schematic Diagram – FRONTAMP Section – ............ 25
4-16. Schematic Diagram
– CENTER/REAR AMP Section –................................. 26
4-17. Schematic Diagram – POWER SUPPLY Section –...... 27
5. EXPLODED VIEWS ................................................ 33
6. ELECTRICAL PARTS LIST ............................... 39
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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.
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

3
SECTION 1
SERVICING NOTES
The laser diode in the optical pick-up block may suffer electro-
static 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
repair 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 emis-
sion, observe from more than 30 cm away from the objective lens.
• MODEL IDENTIFICATION
– Rear Panel –
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
Model Power Voltage Indication
US model AC: 120 V -60 Hz 160 W
Canadian model AC: 120 V -60 Hz 180 W
AEP, UK models AC: 230 V -50/60 Hz 160 W
Australian model AC: 220 – 240 V -50/60 Hz 160 W
Mexican model AC: 120 V -50/60 Hz 160 W
Other models AC: 110 – 120V/220 – 240V -50/60 Hz 160 W
Power Voltage Indication
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
TheAC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage 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-operatedAC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2VAC range are suit-
able. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k Ω 0.15 µF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
The following caution label is located inside the unit.
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

4
SECTION 2
GENERAL
• LOCATION OF CONTROLS
– FrontView –
– Rear View –
1TIMER indicator
2I/1button and indicator
3DISPLAY button
4SPECTRUM button
5GROOVE button and indicator
6FILE SELECT button
7PHONES jack
8ENTER button
9–, .button
0DISC SKIP EX-CHANGE button
qa xbutton
qs DISC 1 button
qd hHbutton and indicator
qf DISC 2 button
qg DISC 3 button
qh Xbutton
qj ZOPEN/CLOSE button
qk >, + button
1FM ANTENNA jack or terminals
2AM ANTENNA terminals
3WOOFER OUT jack
4MD/VIDEO IN jacks
5DVD INPUT jacks
6CENTER SPEAKER terminals
7REAR SPEAKER terminals
8FRONT SPEAKER terminals
9CD DIGITAL OUT (OPTICAL) connector
0VOLTAGE SELECTOR switch (E model)
1
2
3
4
5
6
7
8
9
ql
w;
wa
wf
wh
ws
wg
wd
qgqd
0 qf
qj
qs qh qk
qa
wl
eswk e;
ea edwj
9
0
1 3 876542
ql PLAY MODE, DIRECTION button
(US, Canadian, E, Australian models)
PLAY MODE, PTY/DIRECTION button
(AEP, UK models)
w; REPEAT, STEREO/MONO button
wa EDIT, TUNER MEMORY button
ws VOLUME knob
wd jJbutton
wf REC button and indicator
wg REC PAUSE button and indicator
wh CD SYNC button
wj MD (VIDEO) button and indicator
wk DOLBY PRO LOGIC button and indicator
wl TAPE A/B button and indicator
e; DVD 5.1CH button and indicator
ea CD button and indicator
es DSP button and indicator
ed TUNER/BAND button and indicator
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

5
9
1Press CLOCK/TIME SET.
The hour indication flashes.
Step 3: Setting the
time
You must set the time before using the timer
functions.
The clock uses a 24-hour system on the
European model, and a 12-hour system on
other models.
The 12-hour system is used for illustration
purposes.
1
3,5
2,4
2Press . or > repeatedly to set
the hour.
3Press ENTE .
The minute indication flashes.
4Press . or > repeatedly to set
the minute.
5Press ENTE .
The clock starts working.
Tip
If you make a mistake, start over from step 1.
To change the time
The previous explanation shows how to set
the time while the power is off. To change the
time while the power is on, do the following:
1Press CLOCK/TIME SET.
2Press . or > repeatedly to select SET
CLOCK.
3Press ENTE .
4Perform steps 2 through 5 above.
Notes
• The clock settings are canceled when you
disconnect the power cord or if a power failure
occurs.
• For MHC-BX6AV, you cannot set the time in the
Power Saving Mode (see page 12).
This section is extracted from
instruction manual.
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

6
CD DOOR
CD ASS’Y
Note: Follow the disassembly procedure in the numerical order given.
SECTION 3
DISASSEMBLY
1Pull out the CD tray.
4Push the CD tray.
2five claws
3CD door
4four claws
6wire (flat type) (22core)
(CN705)
1screw
(M3 ×12)
1screw
(M3 ×12)
2two screws
(BVTP3 ×12)
3
8CD ass'y
7harness (6core)
(CN304)
5connector
(CN703)
CD TRAY (page 9)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

7
FRONT PANEL SECTION
MAIN BOARD
1connector
(CN301)
1connector
(CN502)
3ten screws
(BVTP3 ×10
)
1two connectors
(CN302, 305)
4screw (M3 × 12)
2three screws
(BVTP3 ×12)
5front panel section
4screw (M3 ×12)
4connector
(CN101)
6main PC holder (L)
5two claws
3two screws
(BVTP3 ×12)
3two screws
(BVTP3 ×12)
7two claws
1two connectors
8main PC holder (R)
9MAIN board
2harness (5core)
(CN303)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

8
FRONT BOARD AND CENTER/REAR BOARD SECTION, DC FAN (M505)
8four screws
(3 ×30)
3four screws
(BVTP3 ×10)
3eight screws
(BVTP3 ×10
)
5three screws
(BVTP3 ×6)
5three screws
(BVTP3 ×6)
qs FRONT board and
CENTER/REAR board
section
7connector
(CN505)
9holder
4
6rear cover
2three screws
(PTPWH4 ×10)
1connector
(CN501)
9holder
qa DC fan
(M505)
0main chassis holder
MECH DECK (CWL-44-RR)
1six screws
(BVTP3 ×8)
2harness
3mech deck (CWL-44-RR)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

9
CD TRAY
1two screws
(KTP3 ×8)
2top cabinet
1two screws
(KTP3 ×8)
4screw
(BTP3 ×10)
6screw (BTP3 ×10)
7bracket
5bracket
8CD tray
3wire (flat type) (5core
)
(CN06)
DECORD BOARD
4three screws
(BTP2.6 ×6)
6DECORD board
1wire (flat type) (5core)
(CN706)
2wire (flat type) (15core
)
(CN701)
3connector
(CN707)
5connector
(CN702)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

10
BASE UNIT
CASSETTE LID
2flange screw
3UD-gear
4screw
(PTPWH3 ×8)
5UD-cam
8spring
7spring
6spring
1two screws
(PTPWH3 ×10
)
9base unit
cassette door
(Note: Four claws are used.)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

1111
SECTION 4
DIAGRAMS
4-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•Y: parts extracted from the conductor side.
•b: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. U: µF,
pF: µµF 50 WV or less are not indicated except for
electrolytics and tantalums.
• If a numeric value of capacitor is a decimal function, the
preceding zero may be omitted.
(For example, .1 expresses 0.1)
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•f: internal component.
•2: nonflammable resistor.
•C: panel designation.
•U: B+ Line.
•V: B– Line.
•H: adjustment for repair.
• Voltages aretakenwith aVOM(Inputimpedance10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F: FM
f: AM
E:TAPE PLAY (DECK A)
d: TAPE PLAY (DECK B)
G: TAPE REC
J: CD PLAY (ANALOG OUT)
c: CD PLAY (DIGITAL OUT)
• Abbreviation
CND : Canadian model
Note:
The components identi-
fied by mark 0or dotted
linewithmark 0are criti-
cal for safety.
Replace only with part
number specified.
Note:
Lescomposantsidentifiés par
une marque 0sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
• Circuit Boards Location
SW C board
SW D board
SW B board
DECORD board
MOTOR boar
d
SW A board
MAIN board
PANEL board
H/P board
BACK UP board
PHOTO SOCKET board
FRONT board
CENTER/REAR board
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

1212
HCD-BX6AV/DX6AV
B+
B+
B+ B+
B+
B+
DECORD BOARD
(1/4)
CN701
15P
Q701
AUTOMATIC POWER
CONTROL
C701
47
16V
05
109
8
76
OPTICAL
PICK-UP
BLOCK
(OPTIMA-7)
0
IC701
RF AMP, FOCUS/TRACKING
ERROR AMP
C737
.01U
100V 100V
100V
0.1 100V
0.1 100V
100V
100V
100V
100V
50V
0.033 100V
100V
100V
C704
0.033
100V
2
1
1
A
2 3 4 5 6 7 8 9 10 11 12 13 14
B
C
D
E
F
G
H
I
J
K
15 16
DECORD
BOARD
(2/4)
DECORD
BOARD (3/4)
100V
5
2.4
4.8
2.5
5
2.5 4.8 2.6 1.8 1.8 2.5 1.2 2.8 4.3 1.6 0.1
2.5 0
0
5
5
0
5
5
5
4.9
1.3
2.5
2.5
2.5
2.5
2.5
1.8
2.5
2.4
2.3
2.5
1.9
1.9
2.6 2.6 2.3 2.4 2.2 2.5 2.5 2.5
2.5
2.5 0.8
2.4
2.7
2
3
1
4-2. SCHEMATIC DIAGRAM – CD Section (1/4) – • See page 28 for Waveforms. •See page 29 for IC Block Diagram.
•Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replaceonlywithpart number specified.
Lescomposantsidentifiésparune marque0sont
critiques pour la sécurité. Ne les remplacer que
par une pièce portant le numéro spécifié.
(Page 13)
(Page 14)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

1313
HCD-BX6AV/DX6AV
B+
B+
B+
B+
B+
B+
B+
B+
SW D BOARD SW C
BOARD
MOTOR BOARD
(2/4)
S01
CN18
2P
CN06_
5P
CN706
5P
CN18
2P
CN19
2P CN19
2P
CN16_
3P
CN05_
5P
CN707
7P
CN16
3P
05
IC704
DISC TRAY SLIDE/
DISC TRAY TURN MOTOR
CONTROL
Q712
REGULATOR
CONTROL SWITCH
Q704
REGULATOR
CN704
6P
CN705
22P
D706
UDZ-5.6B2S
A
1
4
B
SW A
BOARD
SW B
BOARD
DECORD
BOARD
OPTICAL PICK-UP
UP/DOWN DETECT
S02
OPEN/CLOSE
DETECT
M103
DISC
TABLE TURN
M104
DISC TRAY
SLIDE
S04
TURN TABLE
OPERATION
DETECT
C01
S03
TURN TABLE
POSITION
DETECT
12K 12K 12K
35V
0.022
1
A
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
B
C
D
E
F
G
H
I
J
K
L
M
50
DECORD
BOARD
(1/4)
3
DECORD
BOARD
(3/4)
DECORD
BOARD (4/4)
MAIN
BOARD (3/4)
CN304
+7.5V
PIC DOWN
1
CLOK
DISC COUNT
PANEL
BOARD
CN605
0
0
0
0
5.7
5.7
4.3
0
00
0
8
4.9
0
5
0
0.6
0
•Voltages are dc with respect to ground under no-signal
conditions.
no mark : CD PLAY
4-3. SCHEMATIC DIAGRAM – CD Section (2/4) –
(Page 23)
(Page 20)
(Page 15)
(Page
12)
(Page
14)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

1414
HCD-BX6AV/DX6AV
B+
B+
B+
B+
B+
B+
B+
B+
DECORD BOARD (3/4)
CN702
6P
CN703_
3P
3
2
1
CN703
3P
CN702_
6P
M101
(SPINDLE)
M102
(SLED) S05
(LIMIT)
PH701
OPTICAL TRANSCEIVER
CD DIGITAL
OUT (OPTICAL)
PH701
TOTX178
05
IC703
FOCUS/TRACKING
COIL DRIVE,
SPINDLE/SLED/
DISC TABLE SLIDE/
DISC TRAY TURN
MOTOR DRIVE
2
5
3
PHOTO SOCKET
BOARD
100V
100V
100V
C740C
0.0047
C740D
0.0047
C740B
0.0047
C740A
0.0047
18K
18K
1
A
2 3 4 5 6 7 8 9 10 11 12 13 14
B
C
D
E
F
G
H
I
J
K
DECORD
BOARD (1/4)
DECORD
BOARD
(2/4)
DECORD
BOARD
(4/4)
2.6
4.9
2.8
2.8
2.8
2.8
2.5
2.5
8
2.5
4
0
02.8
2.8
2.8
2.8
2.8
2.5
2.5
8
8
0
0
2.8
2.8
2.8
4-4. SCHEMATIC DIAGRAM – CD Section (3/4) – • See page 29 for IC Block Diagram.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : CD PLAY
(Page 13)
(Page 15)
(Page 12)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

1515
HCD-BX6AV/DX6AV
B+
B+
B+
B+
B+
B+
B+
B+
B+
(4/4)
05
IC702
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
4
5
DECORD
BOARD
0.022
0.022
1
A
2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 16
B
C
D
E
F
G
H
I
J
C780
DECORD
BOARD (2/4)
DECORD
BOARD
(3/4)
4.8
2.5
2.6
2.5
2.6
2.5
2.5
02.6 2.6 0
0
4.9
4.9
2.1
2.1
2.2
4.9
2.1
2.8
2.2
2.2
2.2
4.9
5
4.9
0
4.9
2.6
4.9
2.5
0.8
2.4
4.9 4.8 50000
0.1 0.1 0.1 555
0.1
7
2
6
4
5
4-5. SCHEMATIC DIAGRAM – CD Section (4/4) – • See page 28 for Waveforms. •See page 29 for IC Block Diagram.
•Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
(Page 13)
(Page 14)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

1616
HCD-BX6AV/DX6AV
1
2
5
4
E C B
1
6
B C E
16
E C B
B
A
17
1
2
21
22
M104
(DISC TRAY SLIDE)
PH701
CD DIGITAL OUT (OPTICAL)
PANEL BOARD
CN605
MM
13
CN703
1
3
1
3
1
2
15
14
OPTICAL PICK-UP
BLOCK
(OPTIMA-7)
1-678-510-
(11)
11
05
DECORD BOARD
C740C
51
24
1
2
12
21
CN19
CN18
C01
CN06
M
_
M103
(DISC TABLE TURN) 12
CN19 S03
CN18 S04
TURN TABLE
OPERATION
DETECT
TURN TABLE
POSITION
DETECT
1
3
51
CN05
CN16
S01
OPTICAL
PICK-UP
UP/DOWN
DETECT
OPEN/CLOSE
DETECT
1
3
S02
CN16
MOTOR BOARD SW B BOARD
SW A BOARD
1-674-792-
1-674-789-
(11)
11
(11)
11
SW D BOARD SW C BOARD
1-674-791- 1-674-790-
(11)
11
(11)
11
1-674-788-
(11)
11
PHOTO SOCKET BOARD
1
A
2 3 4 5 6 7 8 9 10 11 12
B
C
D
E
F
G
H
I
CD
MECHANISM
BLOCK
CN705
R788
MAIN BOARD
CN304
D421 J-13
D422 J-12
D423 J-10
IC102 C-11
IC103 A-11
IC201 I-6
IC301 E-6
IC302 C-5
IC303 E-3
IC304 D-13
IC305 E-4
IC306 H-8
IC307 E-11
Q101 B-12
Q103 B-13
Q104 D-13
Q109 B-8
Q110 B-8
Q201 I-4
Q202 I-4
Q203 I-4
Q204 I-4
Q205 I-4
Q206 I-4
Q207 I-4
Q208 H-4
Q209 H-4
Q210 G-6
Q211 G-5
Ref. No. Location
Ref. No. Location
D001 G-14
D002 G-14
D101 B-14
D102 A-14
D103 C-14
D104 C-14
D106 C-12
D107 D-13
D201 H-4
D202 H-4
D203 H-4
D204 H-4
D205 I-7
D303 E-8
D305 D-9
D306 D-8
D307 E-11
D308 E-11
D309 C-6
D402 F-13
D403 H-13
D405 J-9
D407 J-8
D409 G-9
D410 G-9
D411 H-11
D412 I-11
D417 E-9
D418 G-3
D419 I-3
D420 J-13
• Semiconductor Location
4-6. PRINTED WIRING BOARDS – CD Section – • See page 11 for Circuit Boards Location.
• Semiconductor
Location
Ref. No. Location
D703 G-7
D706 F-6
IC701 H-9
IC702 E-10
IC703 I-6
IC704 F-7
PH701 D-11
Q701 I-8
Q704 F-6
Q712 F-6
Q213 I-7
Q214 I-7
Q251 J-5
Q252 J-8
Q253 I-8
Q303 E-13
Q304 E-13
Q305 D-9
Q308 G-4
Q309 G-4
Q312 F-3
Q313 F-4
Q316 D-8
Q317 D-7
Q319 D-9
Q320 D-8
Q321 D-14
Q401 I-9
Q403 I-8
Q405 I-8
Q406 H-9
Q411 E-10
Q412 J-9
Q413 J-9
Q414 J-9
Q415 I-9
Q416 J-9
Q419 J-3
Q420 J-3
Ref. No. Location
(Page 17)
(Page 22)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

1717
HCD-BX6AV/DX6AV
6
5
3
42
1
5
1
C
D
(AEP, UK)
PANEL BOARD
CN102
PANEL BOARD
CN101
12
2
1
1
1
8
8
5
1
PHONES
JK403
ECB
ECB
ECB
ECB
ECB
ECB
ECB
ECB
ECB
ECB
ECB ECB
ECB
CN201
ECB ECB
BCE
BCE
BCE
BCE
BCE
BCE
BCE
BCE
BCE
BCE
1
2
R251
1
1
3
5
112
1324
GSD
GSD
1
8
1
6
11
112
68
43
21
56
443
3
22
1
1
5656
+
+
–
–RJK401
L
FRONT SPEAKER
(IMPEDANCE USE 6-16Ω)
+
+
–
–
+
–
R
CENTER
WOOFER
WOOFER OUT
FM 75Ω
75Ω
REAR DVD INPUT
L
REAR SPEAKER
(IMPEDANCE USE 6-16Ω)
HRPE201
(REC/PB/ERASE) DECORD BOARD
CN704
CENTER/REAR
BOARD
CN302
FRONT
BOARD
CN301
CENTER/REAR
BOARD
CN305
HP201
(PB)
CENTER SPEAKER
(IMPEDANCE USE 6-16Ω)
BACK UP
BOARD
CN502
R
L
FRONT
R
L
MD/VIDEO IN
R
L
FM
(AEP, UK)
AM
9
1
1
1234
234
D002
BCE
BCE
JK301
JK402
JK303
ANTENNA
JK101
BCE
(EXCEPT AEP, UK)
8541
13
13
ECB
2
1
17 15 12
13
14
16
19
18
641
2
3
5
8
7
9
10
11
13
45
2
1365
24 81
81
DSC
BCE
BCE
BCE
BCE
BCE
ECB ECB
(AEP, UK)
B E F G
H
MAIN BOARD
H/P BOARD
2930
A
B
C
D
E
F
12345678910111213
14 15 16
G
H
I
J
K
TP1
FOR
ADJUSTMENT
05
R130
C356A
C355A
4-7. PRINTED WIRING BOARDS – MAIN Section – • See page 11 for Circuit Boards Location.
(Page 22)
(Page 22)
(Page 16) (Page 24) (Page 24) (Page 24)
(Page 24)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

1818
HCD-BX6AV/DX6AV
4-8. SCHEMATIC DIAGRAM – MAIN Section (1/4) – • See page 28 for Waveform. •See page 29 for IC Block Diagram.
•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
():AM
(Page 19)
(Page 20)
(Page 23)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

1919
HCD-BX6AV/DX6AV
4-9. SCHEMATIC DIAGRAM – MAIN Section (2/4) – • See page 28 for Waveforms. •See page 29 for IC Block Diagram.
•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
[ ] :TAPE PLAY (DECK A)
< > : TAPE PLAY (DECK B)
〈〈 〉〉 : TAPE REC
(Page 18)
(Page 20)
(Page 21)
(Page 23)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

2020
HCD-BX6AV/DX6AV
4-10. SCHEMATIC DIAGRAM – MAIN Section (3/4) –
•Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
(Page 13)
(Page 18)
(Page 19)
(Page 21)
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 [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com