CMT-CPX1, HCD-CPX1 — Sony Audio Service Manual (repair manual)

Model
CMT-CPX1 HCD-CPX1
Pages
63
Size
4.29 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-cpx1-hcd-cpx1.pdf
Date

View Sony CMT-CPX1 / HCD-CPX1 Service Manual online

SERVICE MANUAL
CD
Section
Tape deck
Section
Amplifier section
DIN power output (rated): 55 + 55 W 
(4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
70 + 70 W 
(4 ohms at 1 kHz, 10% 
THD)
Inputs
MD (VIDEO) IN (phono jacks):
Sensitivity 450/250 mV, 
impedance 47 kilohms
Outputs
CD DIGITAL OUT:
Optical Wavelength: 
660 nm
PHONES:
accepts headphones with 
an impedance of 8 ohms or 
more
SPEAKER:
accepts impedance of 
4 ohms
CD player section
Laser
Semiconductor laser 
(CD: 
λ =780 nm)
Emission duration: 
continuous
Frequency response
CD: 2 Hz – 20 kHz
Wavelength
780 – 790 nm
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
50 – 13,000 Hz (
±3 dB), 
using Sony TYPE I 
cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz (50 kHz 
step)
Antenna
FM wire antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
531 – 1,602 kHz 
(with the tuning interval 
set at 9 kHz) 
Antenna
AM loop antenna, external 
antenna terminal
Intermediate frequency
450 kHz 
General
Power requirements
230 V AC, 50/60 Hz
Power consumption
50 W 
0.3 W (in Power Saving 
mode)
Dimensions (w/h/d)
Approx. 174 
× 240.5 × 291
 
 
mm
Mass
Approx. 4.3 kg
Design and specifications are subject to change 
without notice.
COMPACT DISC DECK RECEIVER
AEP Model
UK Model
SPECIFICATIONS
HCD-CPX1
Ver 1.0  2003.02
HCD-CPX1 is the Amplifier, CD
player, Tape Deck and Tuner section
in CMT-CPX1.
Model Name Using Similar Mechanism
NEW
CD Mechanism Type
CDM55C-K6BD44S
Base Unit Name
BU-K6BD44S
Optical Block Name
KSM-213DCP
Optical Pick-up Name
KSS-213D
Model Name Using Similar Mechanism
NEW
9-877-059-01
Sony Corporation
2003B0500-1
Home Audio Company
C
 2003.02
Published by Sony Engineering Corporation
2
HCD-CPX1
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 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.
SAFETY-RELATED  COMPONENT  WARNING!!
COMPONENTS  IDENTIFIED  BY  MARK  
0
  OR  DOTTED
LINE  WITH  MARK  
0
  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  PUB-
LISHED  BY  SONY.
TABLE  OF  CONTENTS
1.
SERVICING  NOTES
...............................................
3
2.
GENERAL
Location of Controls .......................................................
7
Setting the Clock .............................................................
8
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
9
3-2. Case ................................................................................. 10
3-3. Front Panel Section ......................................................... 10
3-4. TC Board, Mechanical Deck .......................................... 11
3-5. MAIN Board ................................................................... 11
3-6. Tuner Unit ....................................................................... 12
3-7. CD Mechanism Deck (CDM55C-K6BD44S) ................ 12
3-8. Loading Board ................................................................. 13
3-9. Cam (CDM55) ................................................................ 13
3-10. Base Unit (BU-K6BD44S) ............................................. 14
4.
TEST  MODE
.............................................................. 15
5.
ELECTRICAL  ADJUSTMENTS
Deck Section ................................................................... 17
CD Section ...................................................................... 18
6.
DIAGRAMS
6-1. Block Diagram  – CD Servo Section – ........................... 19
6-2. Block Diagram  – TUNER/TAPE DECK Section – ...... 20
6-3. Block Diagram  – MAIN Section – ................................ 21
6-4. Block Diagram
– DISPLAY/POWER SUPPLY Section – ...................... 22
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 23
6-6. Printed Wiring Board  – BD Board – ............................. 24
6-7. Schematic Diagram  – BD Board – ................................ 25
6-8. Printed Wiring Board  – TC Board – .............................. 26
6-9. Schematic Diagram  – TC Board – ................................. 27
6-10. Printed Wiring Boards
 – LOADING/MAIN Boards – ....................................... 29
6-11. Schematic Diagram  – MAIN Board (1/2) – .................. 30
6-12. Schematic Diagram
– LOADING/MAIN (2/2) Boards – ............................... 31
6-13. Printed Wiring Board  – AMP Board – .......................... 32
6-14. Schematic Diagram  – AMP Board – ............................. 33
6-15. Printed Wiring Boards
– BACK LIGHT/LCD/SWITCH Boards – .................... 34
6-16. Schematic Diagram
 – BACK LIGHT/LCD/SWITCH Boards – ................... 35
6-17. Printed Wiring Board
 – HP/ SP OUT/POWER Boards – ................................. 36
6-18. Schematic Diagram
  – HP/ SP OUT/POWER Boards – ................................ 37
6-19. IC Pin Function Description ........................................... 42
7.
EXPLODED  VIEWS
7-1. Case Section .................................................................... 45
7-2. Front Panel Section-1 ...................................................... 46
7-3. Front Panel Section-2 ...................................................... 47
7-4. Lid (TC) Section ............................................................. 48
7-5. Chassis Section-1 ............................................................ 49
7-6. Chassis Section-2 ............................................................ 50
7-7. Chassis Section-3 ............................................................ 51
7-8. CD Mechanism Deck Section
(CDM55C-K6BD44S) .................................................... 52
7-9. Base Unit (BU-K6BD44S) ............................................. 53
8.
ELECTRICAL  PARTS  LIST
............................... 54
This appliance is 
classified as a CLASS 1 
LASER product. This 
label is located on the 
rear exterior.
3
HCD-CPX1
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.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
NOTE  ON INSTALLING  AND REMOVING  THE  TAPE  MECHANICAL  DECK
To prevent four screws of +BVTP 3 
×
 8 TYPE 2 TT (B), that fix the mechanical deck to the front panel, from being magnetized, must not
use a magnetic screwdriver.
screw +BVTP 3 
×
 8 TYPE 2 TT (B)
screw +BVTP 3 
×
 8 TYPE 2 TT (B)
non-magnetic screwdriver
4
HCD-CPX1
TAPE  MECHANICAL  DECK  SERVICE  POSITION
Set up the service position with putting an insulator under the mechanical deck as the figure shown below.
tape mechanical deck
insulator
CD  MECHANISM  DECK  SERVICE  POSITION
Set up the service position for the CD mechanism deck with disassembling the entire set as the figure shown below.
AMP section
CD mechanism deck
main board
front panel
Page of 63
Display

Download Sony CMT-CPX1 / HCD-CPX1 Service Manual (Repair Manual)

Here you can view online or download Sony CMT-CPX1 / HCD-CPX1 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony CMT-CPX1 / HCD-CPX1 Audio. Information contained in Sony CMT-CPX1 / HCD-CPX1 service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).