Sony HD-XB4K, hcd-xb6k Service Manual
HCD-XB4K
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SERVICE MANUAL
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HCD-XB4K is the tuner, deck, CD and amplifier section in LBT-XB4K, LBT-XB4KS.
CD
Section
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Tape deck
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Model Name Using Similar Mechanism HCD-XB4
CD Mechanism Type
Base Unit Name BU-5BD29AL
Optical Pick-up Name
Model Name Using
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T ape Transport Mechanism T ype TCM-220WR2
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Similar Mechanism HCD-XB4
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E Model
CDM37L-5BD29AL
KSS-213D/Q-NP
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SPECIFICATIONS
Amplifier section
Continuous RMS power output 80 + 80 watts
(5 ohms at 1kHz, 10% THD)
Peak music power output 1200 watts
Inputs
PHONO IN (phono jack): sensitivity 3 mV, impedance 47 kilohms
VIDEO (AUDIO) IN (phono jack):sensitivity 250 mV, impedance 47
kilohms
MIX MIC (phono jack): sensitivity 1 mV, impedance 10 kilohms
Outputs
PHONES (stereo phone jack): accepts headphones of 8 ohms or more
SPEAKER: accepts impeadance of 5 to 16 ohms.
CD player section
System compact disc and digital audio system
Laser Semiconductor laser (λ = 780nm).
Emission
duration: continuous
Laser output Max. 44.6µF*
*This output is the value measured at a distance
of 200 mm from the objective lens surface on the
Optical Pick-up block with 7 mm aperture.
Wavelength 780 - 790 nm
Frequency response 2 Hz - 20 kHz (±0.5 dB)
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
Tape player section
Recording system 4-track 2-channel stereo
Frequency response (DOLBY NR OFF)
60 - 13,000 Hz (±3 dB), using a Sony
TYPE I cassette
60 - 14,000 Hz (±3 dB), using a Sony
TYPE II cassette
– Continued on next page –
COMPACT DISC DECK RECEIVER
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Tuner section
FM stereo, FM/AM superheterodyne tuner
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FM tuner section
Tuning range 87.5 - 108.0 MHz (50kHz) step
Antenna FM wire antenna
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range 531 - 1,602 kHz
Antenna AM loop antenna, External antenna terminals
Intermediate frequency 450 kHz
General
Power requirements
Malaysian model: 220 - 240 V AC, 50/60 Hz
Other models: 110 - 120 V or 220 - 240V AC, 50/60 Hz
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Power consumption 165 watts
Dimensions (w/h/d) Approx. 355 x 425 x 435 mm (14 x 16 3/4 x 17
Mass Approx. 11.5 kg (25 lb 6 oz.)
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(with the tuning interval set at 9 kHz)
530 - 1,710 KHz
(with the tuning interval set at 10 kHz)
Adjustable with voltage selector
1/4 in) incl. projecting parts and controls
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Supplied accessories: AM loop antenna (1)
Design and specifications are subject to change without notice.
TEL
Remote RM-SD70 (1)
Sony SUM-3 (NS)
batteries (2)
FM wire antenna (1)
Speaker cords (2)
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CAUTION
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Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.
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
TEL 13942296513 QQ 376315150 892498299
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
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Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
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The following caution label is located inside the unit.
Dolby noise reduction manufactured under license from Dolb y
Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks of
Dolby Laboratories Licensing Corporation.
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.
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TABLE OF CONTENTS
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1. GENERAL
Getting Started................................................................... 5
Basic Operations................................................................8
The CD Player ................................................................. 12
The Tape Deck .................................................................14
DJ Effects ........................................................................15
Sound Adjustment ...........................................................16
Other Features .................................................................18
Additional Information ....................................................21
2. DISASSEMBLY.......................................................... 22
3. TEST MODE ............................................................... 30
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4. MECHANICAL ADJUSTMENTS.........................32
5. ELECTRICAL ADJUSTMENTS
DECK Section .................................................................32
TUNER Section............................................................... 35
CD Section.......................................................................36
6. DIAGRAMS .................................................................38
6-1. Block Diagrams
TUNER Section............................................................... 40
CD Section.......................................................................41
DECK Section .................................................................42
MAIN Section .................................................................43
6-2. Schematic Diagram – KEY CONTROL Section –.......... 45
6-3. Printed Wiring Board – KEY CONTROL Section –....... 45
6-4. Schematic Diagram – BD Section – ................................47
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6-5. Printed Wiring Board – BD Section – .............................49
6-6 Schematic Diagram – CD MOTOR Section – ................51
6-7. Printed Wiring Boards – CD MOTOR Section – ...........53
6-8. Schematic Diagram – TUNER Section – ....................... 55
6-9. Printed Wiring Board – TUNER Section – .................... 57
6-10. Printed Wiring Boards – DECK Section – .....................59
6-11. Schematic Diagram – DECK Section –.......................... 61
6-12. Schematic Diagram – MAIN Section –..........................65
6-13. Printed Wiring Board – MAIN Section – .......................69
6-14. Schematic Diagrm – PANEL Section –...........................72
6-15. Printed Wiring Boards – PANEL Section –.....................75
6-16. Printed Wiring Boards – POWER Section – ................... 79
6-17. Schematic Diagram – POWER Section –........................81
6-18. IC Pin Function Description............................................86
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NOTES ON HANDLING THE 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
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 emission, observe from more than 30 cm away from the objectiv e lens.
MODEL IDENTIFICATION
– BACK PANEL –
PARTS No.
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MODEL PARTS No.
E, Indonesia models 4-987-927-4π
Saudi Arabia model 4-987-927-5π
Singapore model 4-987-927-6π
Malaysian, Thailand models 4-987-927-7π
SERVICING NOTES
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7. EXPLODED VIEWS .................................................90
8. ELECTRICAL PARTS LIST .................................. 99
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SECTION 1
GENERAL
This section is extracted
from instruction manual.
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(Pag
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• This set can be disassembled in the order shown below.
Q
CASE
(Page 22)
Q
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FRONT PANEL
SECTION
(Page 23)
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MAIN
SECTION
(Page 24)
SECTION 2
DISASSEMBLY
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CD MECHANISM
DECK SECTION
(Page 24)
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BASE UNIT
(Page 27)
DISC TABLE
(Page 27)
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BD BOARD
(Page 28)
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OPTICAL
PICK-UP
(Page 28)
SLED
MOTOR
(Page 28)
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TAPE MECHANISM
DECK SECTION
(Page 25)
CD LID ASS’Y
TEL 13942296513 QQ 376315150 892498299
Note: Follow the disassembly procedure in the numerical order given.
CASE
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13942296513
SECTION
(Page 26)
MAIN BOARD
e 23
AUDIO BOARD
(Page 29)
CASSETTE
LID ASS’Y
(Page 25)
PANEL (A)/(B)
SUB ASS’Y
(Page 26)
3
case
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CAPSTAN MOTOR
(Page 29)
three screws
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three screws
(case 3 point)
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FRONT PANEL SECTION
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front panel section
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three frat wires
(CN102, 205, 206)
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four screws
(BVTP 3
MAIN BOARD
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connector
(CN901)
5
power cord
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(BVTP 3
two flat wires
(CN1, 202)
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connector
(CN101)
MAIN board
×
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MAIN SECTION
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CD MECHANISM DECK SECTION
13942296513
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(BVTP 3
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two screws
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Open the clamp.
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(BVTP 2.6
3
two flat wires
(CN601, 1001)
3
×
1
8)
5
1
5
0
A
4
three screws
(BVTP 2.6
5
4
2
9
8
×
8)
Remove the tape mechanism
deck section to direction of the arrow
9
8
2
A
.
2
Open the
cassette lids.
9
9
TEL 13942296513 QQ 376315150 892498299
TEL
13942296513
CASSETTE LID ASS’Y
1
two springs
Q
Q
1
Push the
7
3
two buttons.
6
3
1
5
3
0
5
1
two brackets
8
9
2
4
2
2
8
9
two screws
(BVTP 2.6
×
9
8)
9
w
w
w
.
xia
o
y
u
1
6
3
– 25 –
.
c
o
m
CD LID ASS’Y SECTION
7
Q
Q
TEL 13942296513 QQ 376315150 892498299
3
6
3
1
5
1
5
connector
(CN671)
5
0
8
6
four screws
(BVTP 2.6
9
2
×
8)
7
4
9
CD lid ass’y
4
connector
(CN661)
8
2
9
9
TEL 13942296513 QQ 376315150 892498299
TEL
PANEL (A) / (B) SUB ASS’Y
13942296513
3
two claws
Q
Q
1
connector
(CN642)
3
7
6
3
1
5
1
3
5
2
four screws
(BVTP 2.6
CD-B1 SW board
2
9
8
0
1
connector
(CN612)
4
×
9
8)
8
2
9
9
4
panel (A) sub ass’y
w
w
w
5
two claws
.
6
panel (B) sub ass’y
xia
o
y
u
1
6
3
– 26 –
.
c
o
2
four screws
(BVTP 2.6
m
×
8)
Q
BASE UNIT
Q
3
7
6
3
1
5
1
5
0
8
9
2
4
9
8
2
9
9
TEL 13942296513 QQ 376315150 892498299
2
boss
DISC TABLE
Note:
TEL
13942296513
When the disc table is installed, adjust the positions
of roller cam and mark z as shown in the figure, then
set to the groove of disc table.
A
Q
Q
3
1
7
screw
(BVTP 3
6
3
×
1
8)
5
1
5
3
1
0
base unit
yoke bracket
9
8
2
4
8
9
3
step screw
2
9
TEL 13942296513 QQ 376315150 892498299
9
w
w
w
.
xia
2
bracket (BU)
o
y
u
1
6
3
– 27 –
.
1
screw
(BVTP 3
c
o
×
8)
m
A
4
disc table
BD BOARD
7
1
3
5
screw
(BVTP 2.6
3
two screws
(PTPWH M2.6
two springs
Q
Q
TEL 13942296513 QQ 376315150 892498299
6
×
6)
×
8)
3
1
5
1
5
0
8
1
two screws
(PTPWH M2.6
2
3
4
2
9
optical pick-up
section
two springs
flat wire
(CN101)
4
×
6)
9
8
2
9
9
TEL 13942296513 QQ 376315150 892498299
6
Removal
four solders.
TEL
OPTICAL PICK-UP, SLED MOTOR
13942296513
3
optical pick-up
Q
Q
3
7
limit switch
3
6
7
BD board
5
1
1
5
0
8
9
2
4
9
8
2
9
9
w
w
2
sled shaft
w
.
xia
1
claw
o
y
u
1
6
– 28 –
3
5
sled motor
.
4
two screws
(P2
c
×
3)
o
m
Q
AUDIO BOARD
Q
3
7
6
4
1
3
1
four screws
(BTP 2.6
5
1
5
0
connector
(CN651)
×
4)
8
9
2
4
2
8
9
2
two rivets
3
Break the soldering of two
flexible flat cables.
9
9
TEL 13942296513 QQ 376315150 892498299
5
AUDIO board
TEL
13942296513
CAPSTAN MOTOR
Q
4
Removal the capstan motor
to direction of the arrow.
Q
3
7
6
3
1
5
1
5
0
8
9
2
4
2
two screws
(BTP 2.6
9
8
TEL 13942296513 QQ 376315150 892498299
9
9
2
×
8)
w
w
w
.
xia
1
Break the soldering of
motor lead.
o
3
claw
y
u
1
6
3
.
– 29 –
c
o
m
5
Hang the
two belts.
SECTION 3
TEST MODE
[MC Cold Reset]
• The cold reset clears all data including preset data stored in the
Q
Q
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. Press three buttons GROOVE , ENTER/NEXT , 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 vibra-
tion. Use this mode when returning the set to the customer after
repair.
Procedure:
1. Press POWER button to turn the set ON.
TEL 13942296513 QQ 376315150 892498299
2. Press PLAY MODE button and POWER button simulta-
neously.
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 GROOVE , ENTER/NEXT , and
DISC 2 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[Sled Servo Mode]
TEL
• 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 GROOVE , ENTER/NEXT , and
FLASH 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 0 button 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.
3
7
6
3
1
13942296513
5
1
5
[Change-over of AM T uner Step between 9kHz and 10kHz]
• A step of AM channels can be changed over between 9kHz and
0
10kHz.
Procedure:
1. Press POWER button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND
button to select the BAND “AM”.
3. Press POWER button to turn the set OFF.
4. Press ENTER/NEXT and POWER buttons 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 Indicator Tube All Lit, Key Check
Mode]
Procedure:
1. Press three buttons GROOVE , ENTER/NEXT , 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 “+” derection, 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.
7
3
Q
Q
8
6
3
9
1
5
2
1
5
4
0
9
8
9
8
2
4
2
9
8
9
2
9
9
TEL 13942296513 QQ 376315150 892498299
9
w
w
w
.
xia
o
y
u
1
6
3
– 30 –
.
c
o
m
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