CHC-CV40, HCD-CV40 - Sony Audio Service Manual (repair manual)

chc-cv40, hcd-cv40 service manual
Model
CHC-CV40 HCD-CV40
Pages
75
Size
14.51 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
chc-cv40-hcd-cv40.pdf
Date

Read Sony CHC-CV40 / HCD-CV40 Service Manual online

HCD-CV40
E Model
SERVICE MANUAL
COMPACT HiFi COMPONENT SYSTEM
SPECIFICATIONS
Ver 1.0  2002. 07
This set is the tuner, deck, VIDEO CD/CD player
and amplifier section in CHC-CV40.
Model Name Using Similar Mechanism
NEW
CD Mechanism Type
CDM63E
Base Unit Type
BU-30BD62
Optical Pick-up Type
A-MAX.3
Model Name Using Similar Mechanism
HCD-TB20
Tape Transport Mechanism Type
CMAL1Z222A
CD
SECTION
TAPE DECK
SECTION
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-874-079-01
2002G1600-1
© 2002.07
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
50 – 13,000 Hz (
±3 dB),
using Sony TYPE I
cassettes
Wow and flutter
±0.15% W. Peak (IEC)
0.1% W. RMS (NAB)
±0.2% W. Peak (DIN)
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz
(50 kHz step)
Antenna
FM lead antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
531 – 1,602 kHz
(with the interval set at
9 kHz)
530 – 1,710 kHz
(with the interval set at
10 kHz)
Antenna
AM loop antenna
External antenna terminals
Intermediate frequency
450 kHz
Amplifier section
Measured at AC 120/220/240 V, 50/60 Hz:
DIN power output (Rated): 40 + 40 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (Reference):
50 + 50 watts
(6 ohms at 1 kHz, 10%
THD)
Inputs
MD (VIDEO) IN (phono jacks):
voltage 450 mV (250
mV), impedance 47
kilohms
Outputs
PHONES (stereo minijack):
accepts headphones of
8 ohms or more.
SPEAKER:
accepts impedance of 6 to
16 ohms.
VIDEO CD/CD player section
System
Compact disc and digital
audio system
Laser
Semiconductor laser
(
λ=795 nm)
Emission duration:
continuous
Frequency response
2 Hz – 20 kHz  (
±0.5 dB)
VIDEO OUT (phono jack) 1 Vp-p, 75 ohms
General
Power requirements
120 V, 220 V, 230 –
240 V AC, 50/60 Hz
Adjustable with voltage
selector
Power consumption
120 watts
Dimensions (w/h/d) incl. projecting parts and controls
Amplifier/Tuner/Tape/CD section:
Approx. 215 
× 285 ×
386 mm
Speaker
Approx. 205 
× 285 ×
240 mm
Mass
Amplifier/Tuner/Tape/CD section:
Approx. 7.8 kg
Speakers
Approx. 3.6 kg net per
speaker
Supplied accessories
Remote (1)
R6 (size AA) batteries (2)
AM loop antenna (1)
FM lead antenna (1)
Speaker pads (8)
Video connecting cable
(1)
Design and specifications are subject to change
without notice.
2
HCD-CV40
TABLE OF CONTENTS
1. SERVICING NOTES
······················································· 3
2. GENERAL
·········································································· 5
3. DISASSEMBLY
································································ 7
3-1. Side Panel ····································································· 8
3-2. Top Panel ······································································ 8
3-3. Cassette Mechanism Deck, TC Board ·························· 9
3-4. Front Panel ···································································· 9
3-5. FRONT INPUT Board, CD Lid ·································· 10
3-6. MIC Board, PANEL Board ········································· 10
3-7. DISPLAY Board ························································· 11
3-8. VOL Board ································································· 11
3-9. VOL SEL Board, Back Panel ····································· 12
3-10. MAIN Board, VIDEO Board ······································ 12
3-11. SUB POWER Board, Power Transformer (T901) ······ 13
3-12. THERMAL Board, AMP Board ································· 13
3-13. CD Mechanism Deck (CDM63E) ······························ 14
3-14. CD Base Unit (BU-30BD62) ······································ 15
3-15. DRIVER Board ··························································· 16
3-16. Fitting Base (Stabilizer) Assy, Tray Assy ··················· 16
3-17. TRAY SENSOR Board ··············································· 17
3-18. Slider (Loading), Gear (Slider) ··································· 17
3-19. Stocker Assy ······························································· 18
3-20. DISC SENSOR Board ················································ 18
3-21. IN OUT SW Board ····················································· 19
3-22. Motor Assy (M721), MOTOR Board ························· 20
4. TEST MODE
···································································· 21
5. MECHANICAL ADJUSTMENTS
····························· 23
6. ELECTRICAL ADJUSTMENTS
······························· 23
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 viscous (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.
7. DIAGRAMS
7-1. Circuit Boards Location ·············································· 28
7-2. Block Diagrams ·························································· 29
7-3. Printed Wiring Board  – BD Board – ·························· 31
7-4. Schematic Diagram  – BD Board – ···························· 32
7-5. Printed Wiring Board  – VIDEO Board (Side A) – ···· 33
7-6. Printed Wiring Board  – VIDEO Board (Side B) – ···· 34
7-7. Schematic Diagram  – VIDEO Board (1/2) – ············· 35
7-8. Schematic Diagram  – VIDEO Board (2/2) – ············· 36
7-9. Printed Wiring Board  – MAIN Board – ···················· 37
7-10. Schematic Diagram  – MAIN Board (1/3) – ·············· 38
7-11. Schematic Diagram  – MAIN Board (2/3) – ·············· 39
7-12. Schematic Diagram  – MAIN Board (3/3) – ·············· 40
7-13. Printed Wiring Boards  – Driver Section – ················· 41
7-14. Schematic Diagram  – Driver Section – ····················· 42
7-15. Printed Wiring Board  – TC Board – ·························· 43
7-16. Schematic Diagram  – TC Board – ····························· 44
7-17. Printed Wiring Boards  – AMP Section – ··················· 45
7-18. Schematic Diagram  – AMP Section – ······················· 46
7-19. Printed Wiring Boards  – Panel Section – ··················· 47
7-20. Schematic Diagram  – Panel Section – ······················· 48
7-21. Printed Wiring Boards  – Power Section – ················· 49
7-22. Schematic Diagram  – Power Section – ······················ 50
7-23. Printed Wiring Board  – MIC Board – ························ 51
7-24. Schematic Diagram  – MIC Board – ·························· 51
7-25. IC Pin Function Description ······································· 56
8. EXPLODED VIEWS
8-1. Side Panel, Back Panel Section ·································· 58
8-2. Front Panel Section ····················································· 59
8-3. Chassis Section ··························································· 60
8-4. CD Mechanism Deck Section -1 ································ 61
8-5. CD Mechanism Deck Section -2 ································ 62
8-6. Base Unit Section (BU-30BD62) ······························· 63
9. ELECTRICAL PARTS LIST
······································· 64
3
HCD-CV40
SECTION 1
SERVICING NOTES
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 objective lens.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
Do not install the appliance in a confined
space, such as a bookcase or built-in cabinet.
You can
Enjoy video playback
(moving pictures) as
well as audio CDs.
Play interactive software
using menu screens
displayed on the TV screen
(menu playback), in addition
to the video playback
function of VIDEO CDs
without PBC functions.
Moreover, you can play high
or standard quality still
picture.
This system can play the
following discs
VIDEO CDs
Audio CDs
Disc logo
Contents
Audio + Video
Audio
(moving pictures)
Disc size
12 cm/8 cm
12 cm/8 cm
Play time
74 min./20 min.
74 min./20 min.
Note on VIDEO CDs
This system conforms to VIDEO CDs without PBC
functions (Ver. 1.1) and VIDEO CDs with PBC
functions (Ver. 2.0) of VIDEO CD standards. You
can enjoy two kinds of playback according to the disc
type.
Disc type
VIDEO CDs without
PBC functions
(Ver. 1.1 discs)
VIDEO CDs with
PBC functions
(Ver. 2.0 discs)
PBC = Playback Control
Notes on CD-R and CD-RW discs
This system can play the following discs:
Type of discs
Label on the disc
• Discs recorded on CD-R/CD-RW drives may not be
played back because of scratches, dirt, recording
condition or the drive’s characteristics.
• You cannot play a CD-R/CD-RW that is not
finalized.
• You cannot play a CD-R/CD-RW that is recorded
in Multi Session.
Audio CD
MP3 files
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.
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
PUBLISHED BY SONY.
This appliance is classified as
a CLASS 1 LASER product.
The label is located on the rear
exterior.
The following caution label is located inside the apparatus.
4
HCD-CV40
Service position of the CD mechanism deck
Service position of the TAPE cassette mechanism deck
BD board
flat cable (1-823-974-11)
VIDEO board
TC Deck section
MAIN board
Jig cord : J-2501-082-A
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Here you can read online and download Sony CHC-CV40 / HCD-CV40 Service Manual in PDF. CHC-CV40 / HCD-CV40 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CHC-CV40 / HCD-CV40 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.