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Model
CMT-BX1 CMT-BX3 CMT-BX5BT HCD-BX5BT HCD-CBX1 HCD-CBX3
Pages
75
Size
4.98 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-bx1-cmt-bx3-cmt-bx5bt-hcd-bx5bt-hcd-cbx1-hcd-c.pdf
Date

Sony CMT-BX1 / CMT-BX3 / CMT-BX5BT / HCD-BX5BT / HCD-CBX1 / HCD-CBX3 Service Manual ▷ View online

3
HCD-BX5BT/CBX1/CBX3
SAFETY  CHECK-OUT
After correcting the original service problem, perform the following
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
The AC 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-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 a
VOM or battery-operated AC 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 passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable.  (See
Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
TABLE  OF  CONTENTS
1.
SERVICING  NOTES
...............................................
4
2.
GENERAL
...................................................................
6
3.
DISASSEMBLY
3-1.
Disassembly Flow ........................................................... 10
3-2.
Panel (Side L/R) .............................................................. 11
3-3.
Panel (Top) ...................................................................... 11
3-4.
MAIN Board, Shield Plate (PWB MAIN) ...................... 12
3-5.
BT Board (BX5BT only) ................................................. 13
3-6.
Lid (CD) Assy ................................................................. 13
3-7.
Panel (Front) Assy ........................................................... 14
3-8.
D.C. Fan (M301), Panel (Rear) ....................................... 14
3-9.
POWER Transformer (T1) .............................................. 15
3-10. Loading Mechanism Block ............................................. 15
3-11. Base Unit ......................................................................... 16
3-12. Belt .................................................................................. 16
3-13. OP Base Assy (KSM-213D) ............................................ 17
4.
TEST  MODE
.............................................................. 18
5.
ELECTRICAL  CHECKS
........................................ 20
6.
DIAGRAMS
6-1.
Block Diagram – CD SERVO Section – ......................... 21
6-2.
Block Diagram
– TUNER, USB, BLUETOOTH Section – ..................... 22
6-3.
Block Diagram – MAIN Section – .................................. 23
6-4.
Block Diagram
– PANEL, POWER SUPPLY Section – .......................... 24
6-5.
Printed Wiring Boards – CD Section – ........................... 26
6-6.
Schematic Diagram – CD Board – .................................. 27
6-7.
Printed Wiring Board – USB Board (CBX3) – ............... 28
6-8.
Schematic Diagram – USB Board (CBX3) – .................. 29
6-9.
Printed Wiring Boards
– BLUETOOTH Section (BX5BT) – .............................. 30
6-10. Schematic Diagram
– BLUETOOTH Section (BX5BT) – .............................. 31
6-11. Printed Wiring Boards – REGULATOR Section – ......... 32
6-12. Schematic Diagram – REGULATOR Section – .............. 32
6-13. Printed Wiring Board – MAIN Board – .......................... 33
6-14. Schematic Diagram – MAIN Section (1/4) – .................. 34
6-15. Schematic Diagram – MAIN Section (2/4) – .................. 35
6-16. Schematic Diagram – MAIN Section (3/4) – .................. 36
6-17. Schematic Diagram – MAIN Section (4/4) – .................. 37
6-18. Printed Wiring Board – AMP Board – ............................ 38
6-19. Schematic Diagram – AMP Board – ............................... 39
6-20. Printed Wiring Boards – SPEAKER Section – ............... 40
6-21. Schematic Diagram – SPEAKER Section – .................... 41
6-22. Printed Wiring Boards – PANEL Section – ..................... 42
6-23. Schematic Diagram – PANEL Section – ......................... 43
6-24. Printed Wiring Board – POWER Board – ....................... 44
6-25. Schematic Diagram – POWER Board – .......................... 45
7.
EXPLODED  VIEWS
7-1.
Panel Section ................................................................... 56
7-2.
Front Panel Section ......................................................... 57
7-3.
Main Section .................................................................... 58
7-4.
POWER Board Section ................................................... 59
7-5.
Loading Mechanism Section ........................................... 60
7-6.
Base Unit Section
(BU-K6BD90-WOD: BX5BT/CBX1)
(BU-K6BD90U-WOD: CBX3) ....................................... 61
8.
ELECTRICAL  PARTS  LIST
................................ 62
Ver. 1.7
Refer to SUPPLEMENT-3 for the VOLTAGE SELECTOR board of
printed wiring board, schematic diagram and electrical parts list of
HCD-CBX3: Singapore model.
Refer to SUPPLEMENT-3 for the POWER board of printed wiring
board, schematic diagram and electrical parts list of HCD-CBX3:
Singapore model.
When repairing the set of except HCD-CBX3: Singapore model,
refer to either of original service manual/SUPPLEMENT-1
according to the set.
Refer to SUPPLEMENT-1 for the POWER board of printed wiring
board, schematic diagram and electrical parts list of HCD-BX5BT:
Canadian/CBX1: Canadian/CBX3: Chinese models.
Refer to SUPPLEMENT-2 for the AMP, MAIN and SPEAKER
boards of printed wiring board, schematic diagram and electrical
parts list of HCD-BX5BT: Canadian/CBX1: Canadian/CBX3:
Chinese models.
Refer to SUPPLEMENT-4 for the USB board of printed wiring board,
schematic diagram and electrical parts list of HCD-CBX3: Chinese
model.
When repairing the set of except HCD-BX5BT: Canadian/CBX1:
Canadian/CBX3: Chinese models, refer to either of original service
manual/SUPPLEMENT-1/SUPPLEMENT-2/SUPPLEMENT-3/
SUPPLEMENT-4 according to the set.
4
HCD-BX5BT/CBX1/CBX3
SECTION  1
SERVICING  NOTES
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 objective lens.
UNLEADED  SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD  FREE  MARK
Unleaded solder has the following characteristics.
Unleaded solder melts at a temperature about 40 ˚C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 ˚C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
ANTITHEFT  UNLOCK  MODE
Procedure:
1. Press the
I/
1
button to turn the power on.
2. Press the [FUNCTION] button to select “CD” (BX5BT/CBX1).
Press the [CD] button on the remote commander to select “CD”
(CBX3).
3. Press two buttons of  [   /CANCEL] and
Z
for 5 seconds.
4. The message “UNLOCKED” is displayed on the liquid crystal
display and the disc tray is unlocked.
Note:
When “LOCKED” is displayed, the tray lock is not released by turning
power on/off with the
I
/1 button.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
MODEL  IDENTIFICATION
Model Name
Part No.
HCD-CBX1: US model
3-100-164-0[]
HCD-CBX3: Canadian model
3-106-894-0[]
HCD-CBX3: AEP and UK models
3-106-895-0[]
HCD-CBX3: Singapore model
3-106-896-0[]
HCD-CBX3: Australian model
3-106-897-0[]
HCD-CBX3: Korean model
3-106-898-0[]
HCD-CBX3: Taiwan model
3-106-900-0[]
HCD-BX5BT: US model
3-106-906-0[]
HCD-CBX3: Chinese model
3-270-500-0[]
HCD-BX5BT: Canadian model
3-274-595-0[]
HCD-CBX1: Canadian model
3-288-861-0[]
Part No.
– Rear View –
x
 Ver. 1.7
5
HCD-BX5BT/CBX1/CBX3
HOW  TO  OPEN  THE  TRAY  WHEN  POWER  SWITCH  TURN  OFF
Note:
Please insert a screwdriver after removing a BT board about about HCD-BX5BT.
About disassembly of a BT board, please refer to “3-5. BT board (BX5BT only)” (page 13).
2
Push the boss. 
3
Open the tray.
1
Insert the driver.
6
HCD-BX5BT/CBX1/CBX3
SECTION  2
GENERAL
This section is extracted from
instruction manual.
Guide to parts and controls
This manual mainly explains operations using the remote, but the same operations can 
also be performed using the buttons on the unit having the same or similar names.
Unit (HCD-BX5BT/Compact Disc Receiver)
Front panel
Top panel
Remote (RM-SC31)
2
STANDBY indicator
Lights up when the system is turned off.
3
Remote sensor
4
Z
 (open/close) button
Press to open or close the disc tray.
5
BLUETOOTH indicator
Lights up when the Bluetooth function 
is active.
6
BLUETOOTH OPR button
Press to make a connection, 
disconnection, or pairing with a 
Bluetooth device.
7
AUDIO IN jack
Connect to an optional audio 
component.
8
PHONES jack
Connect the headphones.
9
Playback buttons and function 
buttons
Unit: BLUETOOTH 
NX
 (play/
pause) button
Press to select the Bluetooth function.
Press to start or pause playback of the 
music on the Bluetooth device (Bluetooth 
mobile phone, etc.).
Unit: CD 
NX
 (play/pause) button
Press to select the CD function.
Press to start or pause playback of a disc.
Remote: CD button
Press to select the CD function.
1
`
/
1
 (power) button
Press to turn on the system.
Remote: 
N
 (play) button, 
X
 (pause) button 
Press to start or pause playback.
TUNER/BAND button
Press to select the TUNER function. 
Press to select FM or AM reception 
mode.
Remote: AUDIO IN button
Press to select the AUDIO IN function.
FUNCTION button
Press to select the function.
q;
DISPLAY button
Press to change the information on the 
display.
qa
PLAY MODE/TUNING MODE 
button
Press to select the play mode of a CD or 
MP3 disc.
Press to select the tuning mode.
Sound buttons
Unit: DSGX button
Remote: EQ button
Press to select the sound effect.
qd
Unit: 
x
/CANCEL (stop/cancel) 
button
Remote:  
x
 (stop) button
Press to stop playback.
qf
ENTER button
Press to enter the settings.
qg
.
/
>
 (go back/go forward) 
button
Press to select a track or file.
Unit: TUNE +/– (tuning) button 
Remote: +/– (tuning) button 
Press to tune in the desired station.
 +/– (select folder) button 
Press to select a folder.
m
/
M
 (rewind/fast forward) 
button
Press to  find a point in a track or file.
qh
Unit: VOL +/– button
Remote: VOLUME +/– button 
Press to adjust the volume.
qj
CLOCK/TIMER SELECT button 
CLOCK/TIMER SET button
Press to set the clock and the Play Timer.
qs
qk
REPEAT/FM MODE button
Press to listen to a disc, a single track or 
file repeatedly.
Press to select the FM reception mode 
(monaural or stereo).
ql
Battery compartment lid 
w;
CLEAR button
Press to delete a pre-programmed track 
or file.
Press to erase the pairing registration 
information of the Bluetooth device.
wa
TUNER MEMORY button
Press to preset the radio station.
ws
SLEEP button
Press to set the Sleep Timer.
Setting the clock
Use buttons on the remote to set the 
clock.
Press 
`
/
1
 
1
 to turn on the 
system.
Press CLOCK/TIMER SET 
qj
If the current mode appears on 
the display, press ./> qg 
repeatedly to select “CLOCK SET” 
and then press ENTER qf.
Press 
.
/
>
 
qg
 repeatedly 
to set the hour, and then press 
ENTER 
qf
.
Use the same procedure to set 
the minutes.
The clock settings are lost when you 
disconnect the power cord or if a 
power failure occurs.
To display the clock when the system 
is off
Press DISPLAY q;. The clock is displayed 
for about 8 seconds.
HCD-BX5BT:
Page of 75
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Sony CMT-BX1 / CMT-BX3 / CMT-BX5BT / HCD-BX5BT / HCD-CBX1 / HCD-CBX3 Service Manual ▷ Download

  • DOWNLOAD Sony CMT-BX1 / CMT-BX3 / CMT-BX5BT / HCD-BX5BT / HCD-CBX1 / HCD-CBX3 Service Manual ↓ Size: 4.98 MB | Pages: 75 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony CMT-BX1 / CMT-BX3 / CMT-BX5BT / HCD-BX5BT / HCD-CBX1 / HCD-CBX3 in PDF for free, which will help you to disassemble, recover, fix and repair Sony CMT-BX1 / CMT-BX3 / CMT-BX5BT / HCD-BX5BT / HCD-CBX1 / HCD-CBX3 Audio. Information contained in Sony CMT-BX1 / CMT-BX3 / CMT-BX5BT / HCD-BX5BT / HCD-CBX1 / HCD-CBX3 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.