DOWNLOAD Sony CFD-E55 Service Manual ↓ Size: 6.88 MB | Pages: 56 in PDF or view online for FREE

Model
CFD-E55
Pages
56
Size
6.88 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cfd-e55.pdf
Date

Sony CFD-E55 Service Manual ▷ View online

SERVICE MANUAL
CD RADIO CASSETTE-CORDER
US Model
Canadian Model
E Model
Australian Model
SPECIFICATIONS
CFD-E55
Model Name Using Similar Mechanism
CFD-Z500
CD
CD Mechanism Type
KSM-213CDM
Section
Optical Pick-up Name
KSS-213C
TAPE
Model Name Using Similar Mechanism
CFD-Z500
Section
Tape Transport Mechanism Type
MF-Z500-117
IF
FM: 10.7 MHz
AM/MW: 450 kHz
Aerials
FM: Telescopic aerial
AM/MW: Built-in ferrite bar aerial
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 sec. with Sony cassette C-60
Frequency response
TYPE I (normal): 70 - 13,000 Hz
General
Speaker
Full range: 8 cm (3 
1
4
 
 in.) dia.,
3.2 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
Power output (excluding for US model)
2 W + 2 W (at 3.2 ohms, 10 % harmonic distortion
in AC operation)
Power requirements
For CD radio cassette-corder:
120 V AC, 60 Hz (US, Canadian, E92*,
Mexican models)
230 V AC, 50Hz (Singapore, Argentine,
Australian models)
9 V DC, 6 size D (R20) batteries
For memory back-up:
4.5 V DC, 3 size AA (R6) batteries
AUDIO POWER SPECIFICATIONS
(US model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 3.2-ohm loads, both channels driven
from 100 - 10,000 Hz; rated 1.5 W per
channel-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
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 +0/–0.5 dB
Wow and flutter
Below measurable limit
Radio section
– US, Canadian, E92*, Mexican models –
Frequency range
FM: 87.6 - 108 MHz
AM: 530 - 1,710 kHz
Aerials
FM: Telescopic aerial
AM: Built-in ferrite bar aerial
– Singapore, Argentine, Australian models –
Frequency range
FM: 87.6 - 108 MHz
AM: 531 - 1,602 kHz
Power consumption
 AC 17 W
Battery life
For CD radio cassette-corder:
FM recording
Sony manganese SUM-1 (N): approx. 9 h
Sony alkaline AM-1 (N): approx. 19 h
Tape playback
Sony manganese SUM-1 (N): approx. 5 h
Sony alkaline AM-1 (N): approx. 14 h
CD playback
Sony manganese SUM-1 (N): approx. 1.5 h
Sony alkaline AM-1 (N) : approx. 7 h
Dimensions
Approx. 304 
×
 169 
×
 262 mm  (w/h/d)
(12 
× 
3
4
 
×
 10 
3
8
 
 inches)
 
(incl. projecting parts)
Mass
Approx. 3.6 kg (7 lb. 15 oz) (incl. batteries)
Supplied accessories
AC power cord (1)
Instruction manual (1)
*E92: Central and South America
Design and specifications are subject to change without
notice.
Ver. 1.2  2005.09
9-927-159-13
2005I05-1
© 2005.09
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
– 2 –
ATTENTION  AU  COMPOSANT  AYANT  RAPPORT
À  LA  SÉCURITÉ!
LES  COMPOSANTS  IDENTIFIÉS  PAR  UNE  MARQUE  
0
SUR  LES  DIAGRAMMES  SCHÉMATIQUES  ET  LA  LISTE
DES  PIÈCES  SONT  CRITIQUES  POUR  LA  SÉCURITÉ
DE  FONCTIONNEMENT.  NE  REMPLACER  CES  COM-
POSANTS  QUE  PAR  DES  PIÈCES  SONY  DONT  LES
NUMÉROS  SONT  DONNÉS  DANS  CE  MANUEL  OU
DANS  LES  SUPPLÉMENTS  PUBLIÉS  PAR  SONY.
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.
1.
SERVICING  NOTES
..............................................
3
2.
GENERAL
..................................................................
5
3.
DISASSEMBLY
........................................................
8
4.
MECHANICAL  ADJUSTMENTS
...................... 14
5.
ELECTRICAL  ADJUSTMENTS
Tape Deck Section ......................................................... 14
Tuner Section ................................................................. 15
CD Section ..................................................................... 17
6.
DIAGRAMS
6-1. Block Diagram  – CD Section – .................................... 19
6-2
Block Diagram  – TUNER Section – ............................ 21
6-3. Block Diagram  – MAIN Section (Type A) – ............... 23
6-4. Block Diagram  – MAIN Section (Type B, C) – ........... 25
6-5. Block Diagram  – MAIN Section (Type D) – ............... 27
6-6. Block Diagram  – POWER SUPPLY Section – ............ 29
6-7. Printed Wiring Boards
– CD Section (Type A, B, C) – ...................................... 33
6-8. Printed Wiring Boards  – CD Section (Type D) – ......... 35
6-9. Schematic Diagram
– CD Section (Type A, B, C, D) – ................................. 37
6-10. Printed Wiring Boards
– MAIN/POWER SUPPLY Section (Type A, B) – ....... 42
6-11. Printed Wiring Boards
– MAIN/POWER SUPPLY Section (Type C) – ............ 45
6-12. Printed Wiring Boards
– MAIN/POWER SUPPLY Section (Type D) – ........... 50
6-13. Schematic Diagram
– MAIN (TUNER) Section (Type A, B, C, D) – ........... 53
6-14. Schematic Diagram
– MAIN (AUDIO) Section (Type A, B, C, D),
POWER SUPPLY Section (Type A, B, C) – ................. 58
6-15. Schematic Diagram
– POWER SUPPLY Section (Type D) – ....................... 61
6-16. Printed Wiring Boards
– DISPLAY Section (Type A, B) – ................................ 63
6-17. Printed Wiring Boards
– DISPLAY Section (Type C) – ..................................... 65
6-18. Printed Wiring Boards
– DISPLAY Section (Type D) – .................................... 67
6-19. Schematic Diagram
– DISPLAY Section (Type A, B, C, D) – ...................... 69
6-20. IC Pin Function Description .......................................... 76
7.
EXPLODED  VIEWS
............................................... 78
8.
ELECTRICAL  PARTS  LIST
.............................. 85
TABLE  OF  CONTENTS
SAFETY  CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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 0.5 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” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able.  (See Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
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.
– 3 –
SECTION  1
SERVICING  NOTES
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.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
1. Turn POWER switch on with no disc inserted and make Func-
tion switch to CD position.
2. Open the lid for CD.
3. Turn on S701 as following figure.
4. Press the 
[     ]
 (CD) button.
5. Confirm the laser diode emission while observing the object-
ing lens. When there is no emission, Auto Power Control cir-
cuit or Optical Pick-up is broken.
Objective lens moves up and down three times for the focus
search.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
S701
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
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
u
– 4 –
MODEL  TYPE  IDENTIFICATION
In this set, the routing of speaker lead wires and the boards have been changed in the midway of production, and the set is grouped into the
following four types depending on the specifications.
TYPE A: Original model.
TYPE B: To the original model, the routing of speaker lead wires is changed.
TYPE C: To the type B, the print patterns of board are changed.
TYPE D: To the type C, the shapes of boards are changed.
• Model Type  Discrimination
Identify each type from the part number printed on each board by referring to the following table.
Also, each board is common to type A and type B, but routing of speaker lead wires is different. For details of different places, refer to “6.
Diagrams 6-10. Printed Wiring Boards – MAIN/POWER SUPPLY Section (Type A, B) –” (page 42, location A-1 and B-1).
Type A, B
Type C
Type D
Board
Part No.
BATT (+)
1-675-297-11
1-675-297-12
1-677-315-11
BATT (–)
1-675-298-11
1-675-298-12
1-677-316-11
CD
1-675-290-11
1-675-290-12
1-677-308-11
CD MOTOR
in common to all types
KEY 1
1-675-292-11
1-675-292-12
1-677-310-11
KEY 2
1-675-293-11
1-675-293-12
1-677-311-11
KEY 3
1-675-294-11
1-675-294-12
1-677-312-11
LCD
1-675-295-11
1-675-295-12
1-677-313-11
LED 
*
1
998-11
998-12
319-11
MAIN
1-675-289-11
1-675-289-12
1-677-307-11
POWER
1-675-291-11
1-675-291-12
1-677-309-11
REC SW
1-675-296-11
1-675-296-12
1-677-314-11
*1) For the LED board, only the lower five digits of part number is printed.
• Precaution on Replacing the Boards
The supplied boards are all type D, and therefore if the board is replaced, use the board of type D only whichever model is serviced.
However, on the type D model, the number of pins of connectors that connect MAIN board to CD board, and MAIN board to POWER
board has been changed, and accordingly the type D is not interchangeable with type A, B, and C respectively.
Therefore, if even one of MAIN, CD, and POWER boards is replaced, replace all three boards simultaneously.
MODEL  IDENTIFICATION
MODEL NO. 
C F D - E 5 5
US, Canadian, E (AC 120V area), 
Mexican models: AC: 120 V  60 Hz 17 W
Singapore, Argentine, 
Australian models: AC: 230 V 
- 50 Hz 17 W
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  • DOWNLOAD Sony CFD-E55 Service Manual ↓ Size: 6.88 MB | Pages: 56 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony CFD-E55 in PDF for free, which will help you to disassemble, recover, fix and repair Sony CFD-E55 Audio. Information contained in Sony CFD-E55 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.