Read Sony CFD-G505 Service Manual online
SERVICE MANUAL
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
Published by Sony Techno Create Corporation
US Model
CD RADIO CASSETTE-CORDER
9-887-102-02
2006D16-1
© 2006.04
© 2006.04
Ver. 1.1 2006.04
SPECIFICATIONS
CFD-G505
Model Name Using Similar Mechanism
CFD-G500
CD
CD Mechanism Type
KSM-213CDP/C2NP
Section
Optical Pick-up Type
KSS-213C
TAPE
Model Name Using Similar Mechanism
CFD-G500
Section
Tape Transport Mechanism Type
MF-G500
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 3.2-ohm loads, both channels driven from
1k - 10kHz; rated 3 W per channel-minimum
RMS power, with no more than 10 % total
harmonic distoration in AC operation.
Woofer with 4-ohm loads, driven at 50 - 150 Hz;
rated 6 W minimum RMS power, with no more
than 10 % total harmonic distortion in AC
operation.
DISTORTION
With 3.2-ohm loads, both channels driven from
1k - 10kHz; rated 3 W per channel-minimum
RMS power, with no more than 10 % total
harmonic distoration in AC operation.
Woofer with 4-ohm loads, driven at 50 - 150 Hz;
rated 6 W minimum RMS power, with no more
than 10 % total harmonic distortion in AC
operation.
Other specifications
CD player section
System
Compact disc digital audio system
Laser diode properties
Emission duration: Continuous
Laser output: Less than 44.6
Laser output: Less than 44.6
µ
W
(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.)
distance of about 200 mm from the objective
lens surface on the optical pick-up block with
7 mm aperture.)
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
AM: 530 - 1 710 kHz
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
AM: Built-in ferrite bar antenna
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 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: 10 cm (4 in.) dia., 4
Woofer: 10 cm (4 in.) dia., 4
Ω
, cone type (1)
Input
LINE IN jack (stereo minijack): Minimum
input level 330 mV
input level 330 mV
Outputs
Headphones jack (stereo minijack)
For 16 - 68
For 16 - 68
Ω
impedance headphones
Power output
4 W + 4 W (at 3.2
Ω
, 10% harmonic distortion)
Woofer:
12 W (at 4
12 W (at 4
Ω
, 10% harmonic distortion)
Power requirements
For CD radio cassette-corder:
120 V AC, 60 Hz
12 V DC, 8 R20 (size D) batteries
For remote control:
3 V DC, 2 R03 (size AAA) batteries
120 V AC, 60 Hz
12 V DC, 8 R20 (size D) batteries
For remote control:
3 V DC, 2 R03 (size AAA) batteries
Power consumption
AC 30 W
Battery life
For CD radio cassette-corder:
FM recording
Sony R20P: approx. 6 h
Sony alkaline LR20: approx. 18 h
Tape playback
Sony R20P: approx. 1.5 h
Sony alkaline LR20: approx. 6 h
CD playback
Sony R20P: approx. 1 h
Sony alkaline LR20: approx. 4 h
FM recording
Sony R20P: approx. 6 h
Sony alkaline LR20: approx. 18 h
Tape playback
Sony R20P: approx. 1.5 h
Sony alkaline LR20: approx. 6 h
CD playback
Sony R20P: approx. 1 h
Sony alkaline LR20: approx. 4 h
— Continued on next page —
2
CFD-G505
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.
damaged by heat.
Flexible Circuit Board Repairing
•
Keep the temperature of soldering iron around 270˚C during
repairing.
repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering.
or unsoldering.
TABLE OF CONTENTS
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.
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
1.
SERVICING NOTES
...............................................
3
2.
GENERAL
...................................................................
4
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
6
3-2.
Cabinet (Upper) (1) Section ............................................
7
3-3.
Cabinet (Upper) (2) Section ............................................
7
3-4.
Cabinet (Front) Section ...................................................
8
3-5.
TUNER KEY Board, VOL KEY Board ..........................
8
3-6.
LCD Panel Assy ..............................................................
9
3-7.
LED Board ...................................................................... 10
3-8.
LCD Board ...................................................................... 11
3-9.
POWER Board, TRANS Board ....................................... 12
3-10. CD KEY Board ............................................................... 12
3-11. H/P Board, TUNER Board .............................................. 13
3-12. MAIN Board .................................................................... 13
3-13. CD Block Section ............................................................ 14
3-14. Optical Pick-up (KSS-213C) ........................................... 14
3-15. Tape Mechanism Deck .................................................... 15
3-16. TC Board ......................................................................... 15
3-17. Main Belt, Sub Belt ......................................................... 16
3-11. H/P Board, TUNER Board .............................................. 13
3-12. MAIN Board .................................................................... 13
3-13. CD Block Section ............................................................ 14
3-14. Optical Pick-up (KSS-213C) ........................................... 14
3-15. Tape Mechanism Deck .................................................... 15
3-16. TC Board ......................................................................... 15
3-17. Main Belt, Sub Belt ......................................................... 16
4.
MECHANICAL ADJUSTMENTS
......................... 17
5.
ELECTRICAL ADJUSTMENTS
.......................... 17
6.
DIAGRAMS
6-1.
Block Diagram – MAIN Section – ................................. 22
6-2.
Block Diagram – TUNER/CD Section – ....................... 23
6-3.
Printed Wiring Board – CD Section – ............................ 24
6-4.
Schematic Diagram –CD Section – ................................ 25
6-5.
Printed Wiring Board – TUNER Section – .................... 26
6-6.
Schematic Diagram – TUNER Section – ....................... 27
6-7.
Printed Wiring Board – TC Section – ............................. 28
6-8.
Schematic Diagram – TC Section – ............................... 29
6-9.
Printed Wiring Board – MAIN Section – ....................... 30
6-10. Schematic Diagram – MAIN Section (1/2) – ................. 31
6-11. Schematic Diagram – MAIN Section (2/2) – ................. 32
6-12. Printed Wiring Board – LCD Section – .......................... 33
6-13. Printed Wiring Board – POWER Section – .................... 34
6-14. Schematic Diagram – POWER Section – ...................... 35
6-11. Schematic Diagram – MAIN Section (2/2) – ................. 32
6-12. Printed Wiring Board – LCD Section – .......................... 33
6-13. Printed Wiring Board – POWER Section – .................... 34
6-14. Schematic Diagram – POWER Section – ...................... 35
7.
EXPLODED VIEWS
7-1.
Overall Section ................................................................ 40
7-2.
Cabinet (Front) Section ................................................... 41
7-3.
Cabinet (Rear) Section .................................................... 42
7-4.
Cabinet (Upper) (1) Section ............................................ 43
7-5.
Cabinet (Upper) (2) Section ............................................ 44
7-6.
Tape Mechanism Deck Section ....................................... 45
7-7.
Optical Pick-up Section (KSM-213CDP/C2NP) ............ 46
8.
ELECTRICAL PARTS LIST
.................................. 47
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
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
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 viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
Unleaded solder is more viscou-s (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.
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
Dimensions
Approx. 530
×
241
×
369 mm (w/h/d)
(20
7
/
8
×
9
1
/
2
×
14
5
/
8
inches) (incl. projecting parts)
Mass
Approx. 8.0 kg (17 lb. 10 oz) (incl. batteries)
Supplied accessories
AC power cord (1)
Remote control (1)
Remote control (1)
Design and specifications are subject to change without notice.
3
CFD-G505
SECTION 1
SERVICING NOTES
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.
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 TEST
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.
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.
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)
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
Ω
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
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.
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.
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.
Chuck Plate Jig.
•
Code number of Chuck Plate Jig : X-4918-255-1
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
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
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.
or Optical Pick-up is broken.
Objective lens moves up and down once for the focus search.
S801
4
CFD-G505
SECTION 2
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
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