Sony CFD-575 / CFD-577 Service Manual ▷ View online
Model Name Using
CD Section
NEW
Similar Machanism
Tape Section
CFD-565
Optical Pick-up Type
KSM-213CDM
Tape Transport Mechanism Type
MF-565
MICROFILM
CFD-575/577
SERVICE MANUAL
CD RADIO CASSETTE-CORDER
SPECIFICATIONS
US Model
Photo : CFD-575
– 2 –
Specifications ........................................................................... 1
1. SERVICING NOTES
............................................... 3
2. GENERAL
Location and Function of Controls .................................... 4
3. DISASSEMBLY
3-1. Rear Cabinet Removal ................................................ 6
3-2. Main Board, CD Board, Optical Pick-up,
CD Motor Board Removal .......................................... 6
3-3. Lamp Board, SW Board,
Mechanism Deck, TC Board Removal ....................... 7
3-4. Power Board, Battery (L) Board,
Battery (S) Board, Battery (M) Board Removal ......... 7
3-2. Main Board, CD Board, Optical Pick-up,
CD Motor Board Removal .......................................... 6
3-3. Lamp Board, SW Board,
Mechanism Deck, TC Board Removal ....................... 7
3-4. Power Board, Battery (L) Board,
Battery (S) Board, Battery (M) Board Removal ......... 7
4. ADJUSTMENTS
4-1. Mechanical Adjustments ............................................ 8
4-2. Electrical Adjustments ................................................ 8
4-2. Electrical Adjustments ................................................ 8
5. DIAGRAMS
5-1. Explanation of IC terminals ...................................... 13
5-2. Block Diagram .......................................................... 15
5-3. Printed Wiring Boards (Main Section) ..................... 21
5-4. Schematic Diagram (Main Section) ......................... 25
5-5. Printed Wiring Boards (CD Section) ........................ 30
5-6. Schematic Diagram (CD Section) ............................ 31
5-2. Block Diagram .......................................................... 15
5-3. Printed Wiring Boards (Main Section) ..................... 21
5-4. Schematic Diagram (Main Section) ......................... 25
5-5. Printed Wiring Boards (CD Section) ........................ 30
5-6. Schematic Diagram (CD Section) ............................ 31
6. EXPLODED VIEWS
6-1. Rear Cabinet Section ................................................ 38
6-2. Front Cabinet Section ............................................... 39
6-3. CD Block Section ..................................................... 40
6-4. Mechanism Deck Section (1) ................................... 41
6-5. Mechanism Deck Section (2) ................................... 42
6-6. Optical Pick-up Section ............................................ 43
6-7. Speaker Section ........................................................ 44
6-2. Front Cabinet Section ............................................... 39
6-3. CD Block Section ..................................................... 40
6-4. Mechanism Deck Section (1) ................................... 41
6-5. Mechanism Deck Section (2) ................................... 42
6-6. Optical Pick-up Section ............................................ 43
6-7. Speaker Section ........................................................ 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.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
Flexible Circuit Board Repairing
• Keep the temperature of the 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.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
TABLE OF CONTENTS
DANGER
Invisible laser radiation when open and interlock failed or defeated.
Avoid direct exposure to beam.
Avoid direct exposure to beam.
CAUTION
Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation ex-
posure.
than those specified herein may result in hazardous radiation ex-
posure.
– 3 –
SECTION 1
SERVICING NOTES
The laser diode in the optical pick-up block may suffer electro-
static 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.
static 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 emis-
sion, observe more than 30 cm away from the objective lens.
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, 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.
r
Code number of Chuck Plate Jig : X-4918-255-1
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
OR BASE UNIT
SAFETY CHECK-OUT
After correcting the original service problem, perform the
following safety check 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.
following safety check 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 0.5mA (500 microampers).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5mA (500 microampers).
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 0.75V,
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)
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)
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
1. Press CD open knob.
2. Open the lid for CD.
3. Push on SWITCH (S702) as following figure.
4. Confirm the laser diode emission while observing the objecting
2. Open the lid for CD.
3. Push on SWITCH (S702) 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.
Optical Pick-up is broken.
Objective lens moves up and down once for the focus search.
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
0.15 F
µ
1.5k
Ω
Fig. A. Using an AC voltmeter to check AC leakage.
Laser diode
Insert a precision
screwdriver and push
SWITCH (S702)
screwdriver and push
SWITCH (S702)
– 4 –
SECTION 2
GENERAL
LOCATION AND FUNCTION OF CONTROLS
1 POWER button
2 CLOCK button
3 TIMER button
4 STANDBY button
5 FUNCTION buttons
6 Remote sensor
7 PLAY MODE (MONO/ST) button
8 DISPLAY (ENTER/MEM) button
9 VOLUME +, – buttons
0 SURROUND button (CFD-577)
!¡ CD operation buttons
2 CLOCK button
3 TIMER button
4 STANDBY button
5 FUNCTION buttons
6 Remote sensor
7 PLAY MODE (MONO/ST) button
8 DISPLAY (ENTER/MEM) button
9 VOLUME +, – buttons
0 SURROUND button (CFD-577)
!¡ CD operation buttons
^
PLAY/PAUSE
p
STOP
= (FR) AMS/SERCH (TIME SET –) button
+ (FF) AMS/SERCH (TIME SET +) button
+ (FF) AMS/SERCH (TIME SET +) button
Front Panel
1
5
4
2
6
8
7
9
3
!™
!£
!¡
0
!¶
!∞
!¢
!ª
!•
!§
(CFD-577)
!™ ROTALY EQUALIZER controls
!£ TAPE operation buttons
!¢ SLEEP button
!∞ PRESET +, – buttons
!§ TUNING +, – buttons
!¶ PHONES jack
!• BAND button
!ª MEGA BASS control
!£ TAPE operation buttons
!¢ SLEEP button
!∞ PRESET +, – buttons
!§ TUNING +, – buttons
!¶ PHONES jack
!• BAND button
!ª MEGA BASS control