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CDP-CE575
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 µF AC
voltmeter
(0.75 V) To Exposed Metal
Parts on Set
Earth Ground
TABLE OF CONTENTS
1. SERVICEING NOTES
............................................ 3
2. GENERAL ................................................................... 6
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 8
3-2. Case (409538) ................................................................. 9
3-3. Front Panel Section ......................................................... 9
3-4. CD Mechanism Deck (CDM59-5BD27) ........................ 10
3-5. MAIN Board ................................................................... 10
3-6. Base Unit (BU-5BD27) ................................................... 11
3-7. Table Assy ....................................................................... 11
3-8. Sensor Board ................................................................... 12
3-9. Loading Motor Board ..................................................... 12
4. ASSEMBLY ................................................................. 13
5. TEST MODE .............................................................. 14
6. ELECTRICAL ADJUSTMENTS ......................... 18
7. DIAGRAMS
7-1. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 21
7-2. Printed Wiring Board -“ BD Section -“ ........................... 22
7-3. Schematic Diagram -“ BD Section -“ .............................. 23
7-4. Printed Wiring Boards
-“ MOTOR/SENSOR Section -“ ....................................... 24
7-5. Schematic Diagram -“ MOTOR/SENSOR Section -“ .... 25
7-6. Schematic Diagram -“ MAIN Section (1/2) -“ ................ 26
7-7. Schematic Diagram -“ MAIN Section (2/2) -“ ................ 27
7-8. Printed Wiring Boards -“ MAIN Section -“ .................... 28
7-9. Printed Wiring Boards -“ DISPLAY Section -“ .............. 30
7-10. Schematic Diagram -“ DISPLAY Section -“ ................... 31
7-11. IC Pin Function Description ........................................... 32
8. EXPLODED VIEWS
8-1. Case Section .................................................................... 36
8-2. Front Panel Section ......................................................... 37
8-3. Chassis Section ............................................................... 38
8-4. CD Mechanism Deck Section-1
(CDM59-5BD27) ............................................................ 39
8-5. CD Mechanism Deck Section-2
(CDM59-5BD27) ............................................................ 40
8-6. Base Unit Section (BU-5BD27) ..................................... 41
9. ELECTRICAL PARTS LIST ............................... 42
ATTENTION AU COMPOSANT AYANT RAPPORT
Ã- 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.
Ver 1.1 2001.07
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CDP-CE575
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.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
MODEL IDENTIFICATION
-“ BACK PANEL -“
Model Part No.
US model 4-233-720-0s
Canadian model 4-233-720-1s
AEP model 4-233-720-2s
HOW TO OPEN THE DISC TABLE WHEN POWER
SWITCH TURNS OFF
Insert a tapering driver into the aperture of the unit bottom, and
turn it in the direction of the arrow (to OUT direction).
table
tapering driver
*To close the disc table, turn the tapering
driver in the reverse direction (to IN direction).
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.
Flexible Circuit Board Repairing
- Keep the temperature of the soldering iron around 270 ËšC dur-
ing 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 CLEANING OF OPTICAL PICK-UP LENS
Do not clean up the optical pick-up lens.CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
Carry out the S curve check in CD section adjustment and
check that the S curve waveforms is output three times. LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Part No.
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CDP-CE575
SECTION 2
GENERAL
This section is extracted from
instruction manual.
4
CHECK qh (13)
CLEAR qj (13, 14, 16, 17)
CONTINUE 2 (9, 13, 15, 18)
DISC 1-“5 3 (9, 10, 13)
Disc compartment ws (9)
DISC SKIP 9 (9, 12, 13)
Display 4 (11)
EX-CHANGE 8 (12, 15)
FADER ql (14, 20)
MEGA CONTROL 0 (18, 19)
MENU wf (8, 16, 17)PEAK SEARCH qk (15)
PHONES jack wh (10)
POWER 1 (7, 9, 16)
PROGRAM qd (9, 13, 18)
Remote sensor wa (6)
REPEAT qf (10, 18)
SHUFFLE qs (9, 10, 18)
TIME EDIT qg (14)
TIME/TEXT w; (11)
X-FADE/NO DELAY wg (19, 20)
Parts Identification
Front Panel
The items are arranged in alphabetical order.
Refer to the pages indicated in parentheses ( ) for details.
Rear Panel
2ND CD IN jacks 3 (8 )
ANALOG OUT L/R jacks 4 (6 )
CONTROL A1II jacks 1 (6, 20)
DIGITAL OUT OPTICAL jack 2 (7)
Mains lead 5 (6)
BUTTON DESCRIPTIONS
A OPEN/CLOSE wj (7, 9, 10, 11)
H 5 (9, 13, 15, 18, 20, 22)
X 6 (10, 15, 18, 22)
x 7 (10, 15, 18)
lAMSL (DISC) dial qa (10,
13, 15, 17, 18, 19)
m/M (AMS+/-“) wd (10, 14, 17,
18)