CFD-V34 - Sony Audio Service Manual (repair manual)

cfd-v34 service manual
Model
CFD-V34
Pages
36
Size
3.58 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cfd-v34.pdf
Date

Read Sony CFD-V34 Service Manual online

CFD-V34
E Model
Tourist Model
SERVICE MANUAL
CD RADIO CASSETTE-CORDER
MICROFILM
— Continued on next page —
SPECIFICATIONS
Optical Pick-up Type
KSM-213CDM/C2NP
Tape Transport Mechanism Type
MF-V10-117
Model Name Using
Similar Mechanism
CD Section
Tape Section
NEW
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength:780 nm
Emission duration : Continuous
Laser output : Less than 44.6 µW
(This output is the value measured at a distance
of about 200 mm from the objective lens surface
on the optical pick-up block with 7 mm
aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 – 20,000 Hz + 1/-2 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM : 87.6 – 107 MHz (E model)
76 – 108 MHz (Tourist model)
AM : 530 – 1,605 MHz (E model)
530 – 1,629 kHz (Tourist model)
IF
FM : 10.7MHz
AM : 455kHz
Aerials
FM : Telescopic aerial
AM : Built-in ferrite bar aerial
Cassette-corder section
Recording system
4 -track 2 channel stereo
Fast winding time
Approx. 120 s (sec.) with Sony cassette C-60
Frequency response
TYPE1 (normal) : 70 – 10,000 Hz
General
Speakers
Full range : 10 cm  dia., 3.2 
, cone type
(2)
Outputs
Headphones jack (stereo minijack)
For 16 – 64 
 impedance headphones
Power output
2.5 W + 2.5 W (at 3.2 
, 10 % harmonic
distortion)
Power requirements
For CD radio cassette-corder :
110 – 120 V, 220 – 240 V AC
Selectable, 50/60 Hz
9V DC, 6 size D (R 20) batteries
For memory controller :
3V DC, 2 size AA (R 6) batteries
Power consumption
AC 20W
— 2 —
Battery life
For CD radio cassette-corder:
FM recording
Sony R20P : approx. 13.5 h
Sony alkaline LR20 : approx. 19 h
Tape playback
Sony R20P : approx. 7.5 h
Sony alkaline LR20 : approx. 15 h
CD playback
Sony R20P : approx. 2.5 h
Sony alkaline LR20 : approx. 6 h
Dimensions
Approx. 425 
×
 160 
×
 246 mm (w/h/d)
(16 
3
/
4
 
×
 6 
3
/
8
 
×
 9 
3
/
4
 inches) (incl. projecting
parts)
Mass
Approx. 4.2 kg (9 lb. 4 oz) (incl. batteries)
Supplied accessories
AC power cord (1)
Remote controller (1)
Design  and specifications are subject to change without notice.
TABLE OF CONTENTS
1. SERVICE NOTES
···························································· 3
2. GENERAL
·········································································· 4
3. DISASSEMBLY
3-1.
Front Cabinet, Control (1) Board, Control (2) Board,
Headphone Board ······························································· 9
3-2.
Upper Cabinet ····································································· 9
3-3.
Optical Pick-up ································································· 10
3-4.
Mechanism Deck, Rec sw Board, Main Board,
Power Board, Primary Board, Batt Board ························ 10
4. ADJUSTMENTS
4-1.
Mechanical Adjustment ···················································· 11
4-2.
Electrical Adjustment ······················································· 11
4-3.
Tuner Section ···································································· 12
4-4.
Reference ·········································································· 15
5. DIAGRAMS
5-1.
Circuit Board Location ····················································· 17
5-2.
IC Pin Function ································································ 18
5-3.
Block Diagram ································································· 20
5-4.
Printed Wiring Board ························································ 23
5-5.
Schematic Diagram – Tuner/System Section – ················ 27
5-6.
Schematic Diagram – Power Section – ···························· 31
5-7.
Schematic Diagram – CD Section – ································· 35
5-8.
IC Block Diagrams ··························································· 38
6. EXPLODED VIEWS
6-1.
Front Cabinet Section ······················································· 39
6-2.
Upper Cabinet Section ······················································ 40
6-3.
Rear Cabinet Section ························································ 41
6-4.
Mechanism Deck Setion (1) (MF-V10-117) ···················· 42
6-5.
Mechanism Deck Setion (2) (MF-V10-117) ···················· 43
6-6.
Optical Pick-up Section (KSM-213CDM/C2NP) ············ 44
7. ELECTRICAL PARTS LIST
······································· 45
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.
— 3 —
SECTION 1
SERVICE NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc., on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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.
CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the CD lid, use
Chuck Plate Jig.
 Code number of Chuck Plate Jig : X-4918-255-1
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
1. Press CD open knob.
2. Open the lid for CD.
3. Push on SWITCH as following figure.
4. Confirm the laser diode emission while observing the objecting
lens. When there is no emission, Auto Power Control circuit or
Optical Pick-up is broken.
Objective lens moves up and down once for the focus search.
Insert a precision screw driver
and push SWITCH
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
The following caution label is located inside the unit.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
— 4 —
SECTION 2
GENERAL
This section is extracted
from instruction manual.
9
!•  !¶
!§  !∞  !¢
!™  !¡  !º
8
7
6
5
4
3
2
1
LOCATION OF CONTROLS
1
2
3
4
5
6
7
8
9
1
POWER button
2
Tape operating buttons
3
FUNCTION buttons
4
LOOP button
5
OPEN/CLOSE button
6
Remote sensor
7
OPR/BATT indicator
8
TUNING knob
9
Information display
TONE (H) button
CD operating
!™
TONE (L) button
2
DISPLAY/ENTER button
!∞
VOLUME – button
PLAY MODE button
MEGA BASS button
!•
VOLUME + button
1
POWER (AC ONLY) button
2
Number buttons
3
VOL +/– buttons
4
CD operation buttons
5
CD button
6
TAPE button
7
LOOP button
8
BAND select buttons
9
TONE H/L buttons
MODE button
MEGA BASS button
Remote commander
Page of 36

Download Sony CFD-V34 Service Manual (Repair Manual)

Here you can read online and download Sony CFD-V34 Service Manual in PDF. CFD-V34 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CFD-V34 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.