CMT-VC1, HCD-VC1 - Sony Audio Service Manual (repair manual)

Model
CMT-VC1 HCD-VC1
Pages
47
Size
4.67 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-vc1-hcd-vc1.pdf
Date

View Sony CMT-VC1 / HCD-VC1 Service Manual online

SERVICE MANUAL
Amplifier section
The following measured at 230 V AC, 60 Hz
DIN power output (rated): 27 + 27 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
32 + 32 W
(6 ohms at 1 kHz, 10%
THD)
The following measured at 220 V AC, 60 Hz
DIN power output (rated): 23 + 23 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
26 + 26 W
(6 ohms at 1 kHz, 10%
THD)
Inputs
AUDIO IN MD (VIDEO) (phono jacks):
Sensitivity 500/250 mV,
impedance 47 kilohms
Outputs
OPTICAL DIGITAL OUT (CD):
Optical
VIDEO OUT (phono jack):
max. output level 1 Vp-p,
unbalanced, Sync
negative, load impedance
75 ohms
PHONES (stereo minijack):
Accepts headphones with
an impedance of  8 ohms
or more
VIDEO CD/CD player section
System
Compact disc and digital
audio system
Laser
Semiconductor laser
(
λ
 = 780 nm)
Emission
duration: continuous
Wavelength
780 - 790 nm
Video color system format
NTSC, PAL
OPTICAL DIGITAL OUT (CD)
(Square optical connector jack, rear panel)
Wavelength
660 nm
Output Level
–18 dBm
Tape player section
Recording system
4-track 2-channel stereo
Frequency response
50 - 13,000 Hz (
±
3 dB),
using a Sony TYPE I
cassette
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 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
530 - 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 - 1,602 kHz
(with the tuning interval
set at 9 kHz)
Antenna
AM loop antenna, external
antenna terminal
Intermediate frequency
450 kHz
MICRO Hi-Fi COMPONENT SYSTEM
E Model
SPECIFICATIONS
HCD-VC1
Ver 1.1  2003.07
HCD-VC1 is the Amplifier, Video CD/CD
player, Tape Deck and Tuner section in
CMT-VC1.
– Continued on next page –
9-873-256-02
Sony Corporation
2003G05-1
Home Audio Company
C
 2003.07
Published by Sony Engineering Corporation
Model Name Using Similar Mechanism
HCD-VP100
CD
CD Mechanism Type
CDM55F-K6BD42A
Section
Base Unit Name
BU-K6BD42A
Optical Pick-up Block Name
KSM-213DCP
Optical Pick-up Name
KSS-213D
Tape deck
Model Name Using Similar Mechanism
HCD-VP100
Section
2
HCD-VC1
TABLE  OF  CONTENTS
1.
GENERAL
Parts Identification ..........................................................
4
Setting the Time ..............................................................
5
2.
DISASSEMBLY
2-1. Disassembly Flow ...........................................................
7
2-2. Upper Cover Sub Assy ....................................................
8
2-3. CD Lid .............................................................................
8
2-4. Front Panel Section .........................................................
9
2-5. Mech Deck (Tape) ...........................................................
9
2-6. CD Mechanism Deck (CDM55F-K6BD42A),
MPEG Board ................................................................... 10
2-7. Base Unit (BU-K6BD42A) ............................................. 10
2-8. Loading Board ................................................................. 11
2-9. Cam (CDM55) ................................................................ 11
3.
TEST  MODE
.............................................................. 12
4.
ELECTRICAL  ADJUSTMENTS
Deck Section ................................................................... 13
CD Section ...................................................................... 13
5.
DIAGRAMS
5-1. Block Diagram  – CD SERVO Section – ....................... 14
5-2. Block Diagram  – MAIN Section – ................................ 15
5-3. Block Diagram
– DISPLAY/POWER SUPPLY Section – ...................... 16
5-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 17
5-5. Printed Wiring Board  – CD Board – ............................. 18
5-6. Schematic Diagram  – CD Board – ................................ 19
5-7. Printed Wiring Board  – TC Board – .............................. 20
5-8. Schematic Diagram  – TC Board – ................................. 21
5-9. Schematic Diagram  – MAIN Board (1/2) – .................. 22
5-10. Schematic Diagram  – MAIN Board (2/2) – .................. 23
5-11. Printed Wiring Board  – MAIN Board – ........................ 24
5-12. Printed Wiring Boards
– SWITCH/I/O SWITCH Boards – ................................ 26
5-13. Schematic Diagram
– SWITCH/I/O SWITCH Boards – ................................ 27
5-14. IC Pin Function Description ........................................... 28
5-15. Printed Wiring Boards  – HEADPHONE/
LCD/LOADING /VIDEO Boards – ............................... 29
5-16. Schematic Diagram  – HEADPHONE/
LCD/LOADING /VIDEO Boards – ............................... 29
5-17. Printed Wiring Board  – POWER Board – ..................... 30
5-18. Schematic Diagram  – POWER Board – ........................ 31
6.
EXPLODED  VIEWS
6-1. Upper Cover, Tape Mech Deck Section ......................... 34
6-2. Front Panel Section ......................................................... 35
6-3. Chassis Section ............................................................... 36
6-4. CD Mechanism Deck (CDM55F-K6BD42A) ................ 37
6-5. Base Unit (BU-K6BD42A) ............................................. 38
7.
ELECTRICAL  PARTS  LIST
............................... 39
General
Power requirements
110 - 120 V or 220 -
240 V AC , 50/60 Hz
Adjustable with voltage
selector
Power consumption
75 W
Dimensions (w/h/d)
Approx. 191 
×
 253 
×
346 mm incl. projecting
parts and controls
Mass
Approx. 5.6 kg
Design and specifications are subject to change
without notice.
3
HCD-VC1
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
The following caution label is located inside the unit.
CAUTION
:
INVISIBLE    LASER    RADIATION    WHEN    OPEN    AND
INTERLOCKS   DEFEATED.    AVOID   EXPOSURE   TO   BEAM.
ADVARSEL :
USYNLIG   LASERSTRÅLING   VED   ÅBNING   NÅR 
SIKKERHEDSAFBRYDERE  ER  UDE  AF  FUNKTION.   UNDGÅ  UDSAETTELSE 
FOR  STRÅLING.
VORSICHT :
UNSICHTBARE  LASERSTRAHLUNG,  WENN 
ABDECKUNG  GEÖFFNET  UND  SICHEREITSVERRIEGELUNG 
ÜBERBRÜCKT.  NICHT  DEM  STRAHL  AUSSETZEN.
VARO
!
:
AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT-
TIINA  NÄKYMÄTTÖMÄLLE  LASERSÄTEILYLLE.  ÄLÄ  KATSO  SÄTEESEEN.
VARNING
:
OSYNLING LASERSTRÅLING NÄR DENNA  DEL ÄR ÖPPNAD
OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.
ADVERSEL :
USYNLIG  LASERSTRÅLING  NÅR  DEKSEL  ÅPNES  OG 
SIKKERHEDSLÅS BRYTES.  UNNGÅ EKSPONERING FOR STRÅLEN.
VIGYAZAT
!
:
A  BURKOLAT  NYITÁSAKOR  LÁTHATATLAN  LÉZERSU-
GÁRVESZÉLY
!
   KERÜLJE  A  BESUGÁRZÁST
!
 
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.
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.
SERVICE POSITION
In checking the CD block, prepare jig (extension cable J-2501-
011-B).
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
Connect jig (extension cable J-2501-011-B)
to the MAIN board (CN101) and VCD block (CN502). 
MAIN board
VCD block
4
HCD-VC1
SECTION  1
GENERAL
– Front View –
Parts Identification
The items are arranged in alphabetical order.
Refer to the pages indicated in parentheses () for details.
Main unit
This section is extracted from
instruction manual.
4
CD cover qa (9, 21)
Shown open in the illustration
above.
CD SYNC 9 (16, 17)
CD u qk (9-13, 26)
CD x qj (9-13, 24)
CD .m/M> qh (10,
11)
CD Z qg (9-11)
DSG indicator qd (19)
FUNCTION 7 (9, 11, 12, 14-16,
21, 24)
PBC indicator qf (10, 26)
PHONES jack qs (21)
Remote sensor q;
TAPE PAUSE X 5 (15-17)
TAPE Y 2 (15-17)
TAPE x 3 (15-17, 24)
TAPE m/M 4 (15)
TUNER/BAND w; (14, 24)
VOLUME 8 (20)
BUTTON DESCRIPTIONS
@/1 (power) 1 (7, 14, 18, 20, 21)
Z 6 (15)
+/— ql (14)
1 2
5
4
7
6
3
8
9
q;
qs
qg
qd
qj
qh
qk
ql
w;
qa
qf
5
HCD-VC1
– Rear View –
1 AM ANTENNA terminals
2 AUDIO IN MD (VIDEO) jacks
3 CD DIGITAL OUT OPTICAL connector
4 SPEAKER terminals
5 SYSTEM SELECT switch
6 VIDEO OUT jack
7 VOLTAGE SELECTOR switch
8 AC power cord
2
1
5
6
7
8
3
4
Setting the time
1
Turn on the system.
2
Press CLOCK/TIMER SET on the
remote.
If you are setting the clock for the first time,
go to step 5.
3
Press +/— on the remote repeatedly
until  SET CLOCK  appears in the
display.
4
Press ENTER on the remote.
The hour indication flashes.
5
Press +/— on the remote repeatedly to
set the hour.
6
Press ENTER on the remote.
The minute indication flashes.
7
Press +/— on the remote repeatedly to
set the minute.
8
Press ENTER on the remote.
The clock will begin operating.
To reset the system clock
Start over from step 1.
6
HCD-VC1
5
Remote Control
CD ql (9, 11)
CLOCK/TIMER SELECT 4
(18, 20)
CLOCK/TIMER SET 5 (8, 17,
20)
DIR MODE wj (15-17)
DISPLAY wk (12)
DSG qj (19)
ENTER 8 (8, 14, 17, 20)
MEMORY wl (14)
NEXT qa (10)
Numeric buttons wh (10, 11)
ON SCREEN 7 (13)
PREV wd (10)
REC z 9 (16)
REPEAT qf (10, 11)
RETURN O qs (10)
SLEEP e; (19)
SLOW y wf (9)
STEREO/MONO 6 (14, 24)
TAPE qh (15)
TUNER BAND qk (14)
TUNING MODE/PLAY MODE
w; (9, 11-14, 24)
TV/VIDEO 1 (7)
TV @/1 2 (7)
VOLUME +/— qg (20)
BUTTON DESCRIPTIONS
N ws (9-13, 15, 26)
X wa (9, 11, 15-17)
x qd (9-13, 15-17)
. wd (10-12, 17)
> qa (10-12, 17)
m wg (10, 11, 14, 15)
M 0 (10, 11, 14, 15)
@/1 (power) 3 (7, 14, 18, 20, 21)
+ qa (8, 14, 18, 20)
— wd (8, 14, 18, 20)
`/1
X
O
y
1
2
3
4
5
6
7
8
qh
ql
qk
qj
w;
wa
ws
wg
wh
wj
wk
wl
e;
wf
wd
q;
9
qa
qs
qd
qf
qg
HCD-VC1
7
• This set can be disassembled in the order shown below.
2-1.
DISASSEMBLY  FLOW
SECTION  2
DISASSEMBLY
2-2. UPPER COVER SUB ASSY
(Page 8)
Set
2-4. FRONT PANEL SECTION
(Page 9)
2-3. CD LID
(Page 8)
2-5. MECH DECK (TAPE)
(Page 9)
2-7. BASE UNIT
(BU-K6BD42A)
(Page 10)
2-8. LOADING BOARD
(Page 11)
2-9. CAM (CDM55)
(Page 11)
2-6. CD MECHANISM DECK
(CDM55F-K6BD42A),
MPEG BOARD
(Page 10)
HCD-VC1
8
2-3.
CD  LID
Note:
 Follow the disassembly procedure in the numerical order given.
2-2.
UPPER  COVER  SUB  ASSY
1
four screws
(BTP3
 
×
 
8)
2
two case screws
2
two case screws
3
upper cover sub assy
3
CD lid
1
tray
Note: Open the tray by supplying the power.
2
two claws
HCD-VC1
9
2-4.
FRONT  PANEL  SECTION
2-5.
MECH  DECK (TAPE)
1
flexible flat (18core) cable
(CN802)
1
flexible flat (20core) cable
(CN804)
1
wire (flat type) (16core)
(CN801)
2
connector
(CN501)
1
flexible flat (18core) cable
(CN301)
4
two screws
(BTP3 
×
 8)
5
screw (KTP3 
×
 6)
5
screw (KTP3 
×
 6)
3
1P wire
6
front panel section
1
azimuth cap
2
three screws
(BVTT2.6 
×
 5)
7
two screws
(BTP3 
×
 8)
7
two screws
(BTP3 
×
 8)
8
mech deck (tape)
5
TC board
6
flexible flat (9core) cable
(CN302)
4
connector
(CNP1)
3
HCD-VC1
10
2-6.
CD  MECHANISM  DECK (CDM55F-K6BD42A), MPEG  BOARD
2-7.
BASE  UNIT (BU-K6BD42A)
4
screw
(BVTP3 
×
 8)
7
three screws
(DIA.2.6 
×
 8)
3
connector
(CN503)
3
connector
(CN504)
9
two screws
(DIA.2.6 
×
 8)
0
bracket (MPEG)
8
MPEG board
qa
CD mechanism deck
(CDM55F-K6BD42A)
5
2
connector
(CN401)
1
fparallel (FFC) (19core) wire
(CN101)
6
parallel (FFC) (24core) wire 
(CN501)
1
floating screw
(PTPWHM2.6)
2
base unit
(BU-K6BD42A)

Download Sony CMT-VC1 / HCD-VC1 Service Manual (Repair Manual)

Here you can view online and download Sony CMT-VC1 / HCD-VC1 Service Manual in PDF. CMT-VC1 / HCD-VC1 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CMT-VC1 / HCD-VC1 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.