CFD-G35 - Sony Audio Service Manual (repair manual)

Model
CFD-G35
Pages
52
Size
10.02 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cfd-g35.pdf
Date

View Sony CFD-G35 Service Manual online

CFD-G35
US Model
Canadian Model
E Model
Australian Model
SERVICE MANUAL
CD RADIO CASSETTE-CORDER
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
9-873-631-08
2005I16-1
© 2005.09
SPECIFICATIONS
Ver. 1.7  2005.09
Model Name Using
CD Section
NEW
Similar Mechanism
Tape Section
CFD-G30
CD Mechanism Type
KSM-213RDP/KSM-213CDP
Optical Pick-up Type
KSS-213R/KSS-213C
Tape Transport Mechanism Type
MF-V5-117
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 3.2-ohm loads, both channels driven
from 1 000 - 10 000 Hz; rated 2 W per
channel-minimum RMS power, with no
more than 10 % total harmonic distortion
in AC operation.
Woofer with 4-ohm loads, driven at
50 - 150 Hz; rated 4 W minimum RMS
power, with no  more 10 % total harmonic
distortion in AC operation.
Other specifications
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 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: 87.5 - 108 MHz
AM: 530 - 1 710 kHz
        (US,Canadian,Mexican,Chilean and Peruvian
         models)
       : 531-1611kHz(Australian model)
       : 531-1611kHz(9kHz step)(Singapore model)
       : 530-1610kHz(10kHz step)(Argentina model)
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 115 s (sec.) with Sony cassette C-60
Frequency response
TYPE I (normal): 70 - 13 000 Hz
General
Speaker
Full range: 10 cm (4  in.) dia., 3.2 
Ω, cone type
(2)
Woofer: 8 cm (3 
1
4
 in.) dia., 4 
Ω, cone type (1)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 
Ω impedance headphones
Power output
2 W + 2 W  (at 3.2 
Ω, 10% harmonic distortion
in DC operation)
Woofer:
6 W (at 4 
Ω, 10 % harmonic distortion in DC
operation)
Power requirements
For CD radio cassette-corder:
120V AC, 60 Hz:
(US,Canadian,Mexican,Chilean and Peruvian
 models)
220 – 230V AC, 50 Hz:
(Argentina model)
230V AC, 50 Hz:
(Other models)
9 V DC, 6 size D (R20) batteries
For remote control:
3 V DC, 2 size AA (R6) batteries
Power consumption
AC 25 W
Battery life
For CD radio cassette-corder:
FM recording
Sony R20P: approx. 4 h
Sony alkaline LR20: approx. 19 h
Tape playback
Sony R20P: approx. 1.5 h
Sony alkaline LR20: approx. 7 h
CD playback
Sony R20P: approx. 1.5 h
Sony alkaline LR20: approx. 3.5 h
Dimensions
Approx. 456 
× 195 × 330 mm  (w/h/d)
(18 
× 7 
3
4
× 13 inches) (incl. projecting parts)
Mass
Approx. 6.4 kg (14 lb. 2 oz) (incl. batteries)
Supplied accessory
AC power cord (1)
Remote control (1)
Design and specifications are subject to change
without notice.
2
CFD-G35
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.
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 
0
 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
TABLE OF CONTENTS
1. SERVICING  NOTES
······················································ 3
2. GENERAL
·········································································· 4
3. DISASSEMBLY
································································ 5
3-1. Cabinet (Front) Assy- 1 ················································ 5
3-2. Cabinet (Front) Assy- 2 ················································ 6
3-3. CONTROL (POWER) , CONTROL (CD) ,
HEADPHONE Board ··················································· 6
3-4. Panel Assy ····································································· 7
3-5. LCD Board, Panel (Upper) ··········································· 7
3-6. Panel (Upper) Assy- 1 ··················································· 8
3-7. Panel (Upper) Assy- 2 ··················································· 8
3-8. POWER, TRANS Board ··············································· 9
3-9. TUNER Board, Duct (Upper, Lower) ··························· 9
3-10. BATT COM, BATT Board ·········································· 10
3-11. MAIN Board- 1 ··························································· 10
3-12. MAIN Board- 2 ··························································· 11
3-13. Mechanism Deck Section (MF-V5-117) ···················· 11
3-14. CD Block Section (KSM-213RDP) ···························· 12
3-15. PDW, L-R/REG Board ················································ 12
4. ADJUSTMENTS
···························································· 13
4-1. Mechanical Adjustments ··············································· 13
4-2. Electrical Adjustments ·················································· 13
5. DIAGRAMS
······································································ 17
5-1. Circuit Boards Location ·············································· 17
5-2. Block Diagrams ·························································· 18
5-3. Printed Wiring Board  – TUNER Section – ················ 20
5-4. Schematic Diagram – TUNER Section – ··················· 21
5-5. Printed Wiring Board – CD Section – ························ 22
5-6. Schematic Diagram – CD Section – ··························· 23
5-7. Printed Wiring Board – TC Section – ························· 24
5-8. Schematic Diagram – TC Section – ···························· 24
5-9. Printed Wiring Board – MAIN Section – ··················· 25
5-10. Schematic Diagram – MAIN Section (1/2) – ············· 26
5-11. Schematic Diagram – MAIN Section (2/2) – ············· 27
5-12. Printed Wiring Board – AMP Section – ····················· 28
5-13. Schematic Diagram – AMP Section – ························ 29
5-14. Printed Wiring Board – CONTROL Section – ··········· 30
5-15. Schematic Diagram – CONTROL Section – ·············· 31
5-16. Printed Wiring Board – POWER Section – ················ 32
5-17. Schematic Diagram – POWER Section – ··················· 33
5-18. IC Pin Function Description ······································· 36
6. EXPLODED VIEWS
······················································ 38
6-1. Cabinet (Front) Section ··············································· 38
6-2. Cabinet (Rear) Section ················································ 39
6-3. Cabinet (Upper) Section ············································· 40
6-4. Mechanism Deck Section- 1  (MF-V5-117) ··············· 41
6-5. Mechanism Deck Section- 2  (MF-V5-117) ··············· 42
6-6. CD Mechanism Section (KSM-213RDP) ··················· 43
7. ELECTRICAL PARTS LIST
······································· 44
Ver 1.3  2002. 09
3
SAFETY  CHECK-OUT
       After correcting the original service problem, perform the
following safety checks 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
    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 2V AC range are suitable. (See
Fig. A)
To Exposed Metal 
Parts on Set
0.15 
µ
F
1.5 k
AC
Voltmeter
(0.75 V)
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
CFD-G35
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
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 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 (S801) 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 (S801)
4
CFD-G35
SECTION 2
GENERAL
This section is extracted
from instruction manual.
Remote Control
Location of controls
FUNCTION
BAND
POWER
VOL +*, –
x
.
,
>
Z
 PUSH
OPEN/CLOSE
VOLUME –, +*
TUNE –, +
DISPLAY
ENTER
MEMORY
MODE
i
Number buttons
x
*
POWER
SLEEP
OPR/BATT
Loading a CD
With the labeled side up
Inserting a cassette
With the side you want to
play facing upward
BAND
AUTO PRESET
SOUND
Display
Remote sensor
Total track number
D
E
Total playing time
Display
*The button has a tactile dot.
POWER DRIVE
WOOFER
.
>
PRESET –, +
N
X
SLEEP
MODE
TUNE+, –
WOOFER
SOUND
About CD-Rs/CD-RWs
This player can play CD-Rs/CD-RWs
recorded in the CD-DA format*, but
playback capability may vary depending on
the quality of the disc and the condition of
the recording device.
* CD-DA is the abbreviation for Compact
Disc Digital Audio. It is a recording
standard used for Audio CDs.
If you have any questions or problems
concerning your player, please consult your
nearest Sony dealer.
Programmed track
Playing order
 u

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