Sony CDPCE-245, CDPCE-345 Service manual
CDP-CE245/CE345
SERVICE MANUAL
Photo: CDP-CE345 (Silver TYPE)
US Model
Canadian Model
CDP-CE245/CE345
AEP Model
UK Model
E Model
CDP-CE345
Australian Model
CDP-CE245/CE345
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM59-5BD32A
Base Unit Name BU-5BD32A
Optical Pick-up Name KSS-213BA/F-NP
SPECIFICATIONS
COMPACT DISC PLAYER
TABLE OF CONTENTS
1. SERVICING NOTES............................................... 3
2. GENERAL ................................................................... 4
3. DISASSEMBLY ......................................................... 5
4. TEST MODE.............................................................. 10
5. ELECTRICAL CHECKING .................................. 14
6. DIAGRAMS
6-1. Note for Printed Wiring Boards
and Schematic Diagrams ................................................ 17
6-2. Printed Wiring Board – BD Board – ............................. 18
6-3. Schematic Diagram – BD Board – ................................ 19
6-4. Printed Wiring Boards – JUNCTION/SENSOR/
LOADING MOTOR Boards – ....................................... 20
6-5. Schematic Diagram – JUNCTION/SENSOR/
LOADING MOTOR Boards – ....................................... 21
6-6. Printed Wiring Board – MAIN Board – ........................ 22
6-7. Schematic Diagram – MAIN Board –........................... 23
6-8. Printed Wiring Boards – PANEL Section – .................. 24
6-9. Schematic Diagram – PANEL Section – ....................... 25
6-10. IC Pin Function Description ........................................... 29
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.
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 man ufacturers’ instructions to use these
instruments.
2. A battery-operated A C 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 lowvoltage scale. The Simpson 250 and Sanwa SH-63T rd are e xamples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V A C range are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
7. EXPLODED VIEWS ................................................ 33
8. ELECTRICAL PARTS LIST ............................... 39
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.
1.5 k
0.15 µF
Fig. A. Using an AC voltmeter to check AC leakage.
Ω
Earth Ground
AC
voltmeter
(0.75 V)
ATTENTION AU COMPOSANT AYANT RAPPORT
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMA TIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
À LA SÉCURITÉ!
2
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 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 emission, observe from more than 30 cm away from the objective lens.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
HOW T O OPEN THE DISC T ABLE WHEN PO WER
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).
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
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 ˚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.
MODEL IDENTIFICATION
– BACK PANEL –
Part No.
Model Part No.
CDP-CE245: US model 4-224-877-0s
CDP-CE245: Canadian model 4-224-877-1s
CDP-CE245: Australian model 4-224-877-2s
CDP-CE345: US model 4-224-878-0s
CDP-CE345: Canadian model 4-224-878-1s
CDP-CE345: AEP model 4-224-878-2s
CDP-CE345: UK model 4-224-878-3s
CDP-CE345: Australian model 4-224-878-4s
CDP-CE345: E model 4-224-878-5s
CDP-CE345: Singapore model 4-224-878-6s
CDP-CE345: Saudi Arabia model 4-224-878-7s
3
• LOCATION OF CONTROLS
– Front panel –
1 2 3 4 67 95
qjqkw;
wf
wd
ws
wa
ql
qh
SECTION 2
GENERAL
8
qs 0
qf
qa
qd
qg
qa
1 POWER button
2 DISC1 – DISC5 button
3 Fluorescent indicator tube display
4 MUSIC SCAN button
5 FADER button
6 H button
7 X button
8 x button
9 A OPEN/CLOSE button
0 DISC SKIP button
qa l AMS L control
qs EX-CHANGE button
qd CLEAR button
qf CHECK button
qg M button
qh m button
qj Disc table
qk TIME button
ql REPEAT button
w; PROGRAM button
wa SHUFFLE button
ws CONTINUE button
wd PEAK SEARCH button
wf EDIT/TIME FADE button
– Rear panel –
2 31
1 Voltage selector switch (E and Saudi Arabia models only)
2 DIGITAL OUT OPTICAL connector
3 ANALOG OUT
4
SECTION 3
)
)
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
COVER (409537)
3 cover (409537)
1 two screws
(case3 TP2)
2 two screws
(BVTP3 × 8)
1 two screws
(case3 TP2
FRONT PANEL SECTION
4 claw
3 three screws
(BVTP3 × 8)
2 two connectors
(CN601, 602)
1 wire (flat type) (37 core
(CN301)
4 claw
5 front panel section
5
CD MECHANISM DECK (CDM59-5BD32A)
)
5 screw
(BVTP3 × 8)
4 Slide the tray until the screw
that fixes the table ass’y can be
seen through around hole
in the table ass’y.
3 three screws
a
a
(BVTP3 × 8)
9 CD mechanism deck
(CDM59-5BD32A)
2 three screws
(BVTP3 × 8)
6
7 wire (flat type) (21 core)
(CN302)
MAIN BOARD
5 MAIN board
8 connector
(CN311)
1 Insert a tapering driver from the bottom of the chassis,
and turn it in the direction of the arrow until the base unit
goes down to the lowest position.
3 two screws
(PTTWH3 × 6)
2 two screws
(BVTP3 × 8)
1 two screws
(BVTP3 × 8
4 two PC board holders
6
BASE UNIT (BU-5BD32A)
4 two screws
(PTPWH M2.6)
4 two screws
(PTPWH M2.6)
5 base unit (BU-5BD32A)
1 wire (flat type) (21 core)
(CN101)
6 four compression springs (932)
3
2 two screws
(PTPWH M2.6)
7 holder (BU) ass’y
lever (lifter)
BU section
Note: When installing the BU
on the chassis, set the
lever (lifter) in free
position, the gear (U/D)
in UP position, and insert
the shaft into the
groove of gear (U/D).
gear (U/D)
b
b
TABLE ASS’Y
Note: When installing the table ass’y
on the chassis ass’y, engage
the gear (loading C) with the groove
by looking into the gear through
a hole in the table ass’y.
qs table ass’y
e
9 three screws
(BTTP M2.6)
e
q; clamp
3
qa bracket (guide)
gear
(loading C)
2 two screws
(BTTP M2.6)
c
d
7 two screws
(BTTP M2.6)
6 bracket (guide)
1 Slide the tray until the screw
that fixes the bracket (guide)
can be seen through a round
c
hole , in the table ass’y.
d
8 bracket (guide 2)
4 wire (flat type)
(6 core) (CN15)
5 screw
(BTTP M2.6)
7
TRAY, BELT (ROTARY), SENSOR BOARD
)
1 screw
(PTPWH M2.6)
2 tray
3 belt (rotary)
5 SENSOR board
BELT (LOADING ), LOADING MOTOR BOARD
4 LOADING MOTOR board
4 two screws
(BTTP M2.6)
3 two screws
(BTTP M2.6)
4 two screws
(BTTP M2.6
1 belt (loading)
2 connector
(CN13)
8
ADJUSTING PHASE OF SWING GEAR AND GEAR (U/D)
7 gear (U/D)
8 screw
(PTPWH M2.6)
q; screw
(PTPWH M2.6)
circle mark
circle mark
swing gear
gear (RV)
Fig. A
gear (U/D)
9 gear (RV)
Note: Align swing gear, a circle mark
on the gear (U/D), and the teeth
of gear (RV) to the position
showing in the Fig. A.
Note: Follow the assembly procedure in the numerical order given.
5 stopper washer (FR)
3 Let the swing gear through under the
chassis and engage its dowel
with the groove of rotary encoder.
h
f
g
g
4 Push fully the shaft of shaft gear and
align the hole shape of gear (loading B).
6 screw
(PTPWH M2.6)
2 Install the rotary encoder so that
its groove comes to the position
shown in the figure.
f
1 Insert the shaft gear up to the
position where its shaft comes
out by 5 mm.
f
h
9
SECTION 4
r
TEST MODE
ADJ MODE
NOTE:This mode cannot be performed without a general remote com-
mander.
1. Chuck the CD first, and then turn OFF the power.
2. Short-circuit the test point TP1 (ADJ) of the MAIN board and
ground with a lead wire.
3. Press the
The CD is playback automatically and the ADJ mode is set.
4. To exit the mode, press the
power.
• Prohibits high speed search during accessing
• Ignores even if GFS becomes “L”
ADJ Mode Special Function Table
PROGRAM
CONTINUE
SHUFFLE
FADER RFCK → GFS → Error rate display
[POWER] button to turn ON the power.
[POWER] button to turn OFF the
Button Function
Auto gain display
(Focus, Tracking and Sledding)
Servo average display 1
(VC, FE and RF)
Servo average display 2
(TE and Traverse)
FLUORESCENT INDICATOR TUBE, LED ALL LIT,
AND KEY CHECK MODE
1. Short-circuit the test TP2 (AFADJ) of the MAIN board and
ground with a lead wire.
2. Press the
The whole fluorescent indicator tube lights up.
3. All buttons have individual button numbers.
When a button is pressed, the button number is counted up
and displayed.
[POWER] button to turn ON the power.
10
Count up display Displays button numbe
When remote controller signals are received, “RM **” will
be displayed.
(** are the numbers corresponding to the remote controller
buttons.)
When using the remote controller, switch the
to CD1.
4. To exit the mode, press the [POWER] button to turn OFF the
power.
[CD1/2/3] switch
Checking Location:
– MAIN BOARD (Conductor Side) –
TP1
(ADJ)
JW64
IC301
TP2
(AFADJ)
JW63
(GND)
10
Buttons and Corresponding Button Numbers
1
SECSTEPMINPEAKTRACKDISC
2345
678910
11 12 13 14 15
16 17 18 19 20
ALL1DISCS
PROGRAM
SHUFFLE
REPEAT 1
EDIT
TIME
FADE
A B
All lit
1
STEPPEAKDISC
2345
678
ALL1DISCS
Button Button Number or Display
CONTINUE 12
SHUFFLE 11
PROGRAM 10
REPEAT 9
DISC1 20
DISC2 19
DISC3 18
DISC4 17
DISC5 16
H (PLAY) Partial lighting 1
X (PAUSE) Partial lighting 2
x (STOP) All lit (LED lighting)
EX-CHANGE 25
DISC SKIP 24
A OPEN/CLOSE 32
AMS (button) 26
When rotated clockwise: The music calendar
AMS (knob)
FADER 36
MUSIC SCAN 37
CLEAR 27
CHECK 28
M 29
m 30
PEAK SEARCH 21
TIME 8
TIME/TEXT 22
numerals light up in ascending order.
When rotated counterclockwise: The music
calendar numerals light up in descending
order.
Partial lighting 1
Partial lighting 2
SECMINTRACK
R
Light altemately
r
R
Light altemately
r
135
79
11 13 15
17 19
24
6810
12 14
16 18 20
11
AGING MODE
For the aging mode, three modes of all mode, disc table mode, and loading mode are available.
This set has the Aging mode for operation check of the mechanism deck.
• If a failure occurred
The aging operation stops and a faulty status is displayed on the fluorescent indicator tube.
• If no failure occurs
The aging operation continues repeatedly.
Note: Do not use the test disc when performing aging.
Aging will not be performed properly if discs with tracks shorter than 4 seconds are used.
Aging method 1
(When using the aging remote controller (J-2501-123-A):
1. Set the remote controller [CD1/2/3] switch to CD1.
2. Press the [POWER] button and turn ON the power.
3. Set discs on all trays.
(More than two discs if five are not available.)
4. Press the [AGING START] button of the aging remote controller.
5. Aging starts, and the fluorescent indicator tube will display the following.
6. To exit the mode, press the [POWER] button to turn OFF the power.
Aging method 2
(When no aging remote controller):
1. Press the [POWER] button and turn ON the power.
2. Set discs on all trays.
(More than two discs if five are not available.)
3. All mode:
Press the [CONTINUE], x and [CHECK] buttons at the same time.
Disc table mode:
Press the [CONTINUE], x and [DISC SKIP] buttons at the same time.
Loading mode:
Press the [CONTINUE], x and [EX-CHANGE] buttons at the same time.
4. Aging starts, and the fluorescent indicator tube will display the following.
5. To exit the mode, press the
[POWER] button to turn OFF the power.
Code No. Status All mode
0 CLOSE (Tray closed) a a A-0 Err 0
1 TOC reading aa a A-1 Err 1
2 Access to last track a A-2 Err 2
3 Play of last track (3 sec) a Counter display Err 3
4 EX OPEN (Tray opened while chucking) a a A-4 Err 4
5 EX SKIP (Disc tray rotated) a A-5 Err 5
6 EX CLOSE (Tray closed) a a A-6 Err 6
7 Access to first track a A-7 Err 7
8 Play of first track (3 sec) a Counter display Err 8
9 OPEN (tray opened) a a A-9 Err 9
DISC SKIP (Disc tray rotated,
A
and next disc was selected)
aa A-A Err A
Disc table Loading Display in Display in
mode mode Normal operation case of failure
The discs are selectie in the order of DISC1 →DISC2 → DISC3 → DISC4 → DISC5 → DISC1 → .... Empty trays are skipped.
12
MECHANISM DECK CHECK MODE
For the mechanism deck check mode, two modes of disc table mode and loading mode are available.
In the mechanism deck check mode, the disc table turning time and the loading time in each section are measured and displayed.
1. Disc table mode:
Press the [POWER] switch while pressing [CHECK], [ OPEN/CLOSE] and [REPEAT] buttons simultaneously.
Loading mode:
Press the [POWER] switch while pressing [CHECK], [ OPEN/CLOSE] and [TIME] buttons simultaneously.
Display contents
Mode Check command Display
Disc table mode 0: Right one turn r 12.5
Table turning 1: Left one Turn L 10.2
(
time measurement
Table mode
Loading time
(
measurement
)
2: Measurement end r 12.5
3: Undefined
4: Star position Sta – –.–
5: Open → Close CLo 10.2
6: Close → BU up UP 0.7
7: BU up → EX open EoP 6.2
)
8: EX open → EX close ECL 10.3
9: EX close → BU down don 1.2
A: BU down → Open oPn 9.3
FF: Measurement end CLo 10.2
A
A
13
SECTION 5
e
e
V
+
–
BD board
TP (TE)
TP (VC)
oscilloscope
)
r
ELECTRICAL CHECKING
Note:
1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
S-Curve Check
oscilloscop
BD board
TP (FE)
TP (VC)
+
–
Procedure:
1. Connect oscilloscope to TP (FE) and TP (VC) on the BD board.
2. Connect between TP (FE1) and TP (VC) with lead wire.
3. Connect between TP (AGCCON) and TP (GND) with lead
wire.
4. Turned power switch ([POWER] button) on.
5. Load a disc (YEDS-18) and actuate the focus search. (In con-
sequence of open and close the disc tray, actuate the focus
search)
6. Cofirm that the oscilloscope waveform (S-curve) is symmetri-
cal between A and B. And confirm peak to peak level within
4 ± 1 Vp-p.
S-curve waveform
symmetry
E-F Balance (1 Track Jump) Check
Procedure :
1. Connect oscilloscope to TP (TE) and TP (VC) on BD board.
2. Turned power switch ([POWER] button) on.
3. Load a disc (YEDS-18) and playback the number five track.
4. Press the H button. (Becomes the 1 track jump mode)
5. Confirm that the level B and A (DC voltage) on the oscilloscope waveform.
1 track jump waveform
B
0V
level = 1.3 ± 0.6 Vp-p symmetry
Specified level: × 100 = less than ± 22%
A
B
center of
waveform
A (DC voltage
6. After check, remove the lead wire connected in step 1.
A
within 4 ± 1 Vp-p
B
7. After check, remove the lead wire connected in step 2 and 3.
Note: • Try to measure several times to make sure than the ratio of A : B
or B : A is more than 10 : 7.
• T ak e sweep time as long as possible and light up the brightness to
obtain best waveform.
RF Level Check
oscilloscop
BD board
TP (RF)
TP (VC)
+
–
Procedure:
1. Connect oscilloscope to TP (RF) and TP (VC) on BD board.
2. Connect between TP (AGCCON) and TP (GND) with lead
wire.
3. Turned power switch ([POWER] button) on.
4. Load a disc (YEDS-18) and playback.
5. Confirm that the oscilloscope waveform is clear and check RF
signal level is correct or not.
6. After check, remove the lead wire connected in step 2.
Note: Clear RF signal waveform means that the shape “◊” can be clearly
distinguished at the center of the waveform.
RF PLL Free-run Frequency Check
Procedure :
1. Connect frequency counter to TP (PLCK) with lead wire.
frequency counte
BD board
TP (PLCK)
2. Turned power switch (
[POWER] button) on.
+
–
3. Put the disc (YEDS-18) in to play the number five track.
Confirm that reading on frequency counter is 4.3218 MHz.
14
VOLT/DIV: 200 m
TIME/DIV: 500 ns
level:
1.45 ± 0.3 Vp-p
Loading...