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.
8.ELECTRICAL PARTS LIST ............................... 42
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. Follo w 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” indication is 0.75 V, so analog meters must have an accurate lowvoltage 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 2 V A C range are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
0.15 µF
1.5 k
Ω
AC
voltmeter
(0.75 V)
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES 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.
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
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 objecti ve lens.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
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.
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).
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.
ModelPart No.
US model4-224-879-0s
Canadian model4-224-879-1s
AEP model4-224-879-2s
Australian model4-224-879-3s
E model4-224-879-4s
Singapore model4-224-879-5s
Saudi Arabia model4-224-879-6s
3
SHIPMENT MODE
Performed when returning the unit to the customer.
Custom File Erases all custom files and initializes settings.
Procedure:
1. Remove the discs from all trays.
2. While pressing the DISK SKIP button and PROGRAM button, press the POWER button to turn ON the power.
3. “NO DISC” is displayed, indicating that the mode has ended.
Note:“NO DISC” may be displayed even if there are discs on the
trays.
CD-TEXT TEST DISC
This unit is able to display the TEXT data (character information) written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display.
To check, perform the following procedure.
Checking Method:
1. Set the test disc on a free tray, and chuck the disc.
2. Press the B button and play back the disc.
3. The following will be displayed on the fluorescent indicator tube.
Display : 1kHz/0 dB/ L&R
4. Rotate l AMS L knob to switch the track. The text data of each track will be displayed.
For details of the displayed contents for each track, refer to “Table 1 : CD-TEXT TEST DISC TEXT Data Contents” and “Table 2 : CDTEXT TEST DISC Recorded Contents and Display”.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it. For
details, refer to “Table 2 : CD-TEXT DISC Recorded Contents and Display”.
Table 1 : CD-TEXT TEST DISC TEXT Data Contents (TRACKS No. 1 to 41:Normal Characters)
! ” # $ % & ´(21h to 27h)1kHz 0dB L&R
( )+ , – . /(28h to 2Fh)
*
01234567 (30h to 37h)
8 9 : ; < = > ? (38h to 3Fh)
@A B CD E F G (40h to 47h)
H I J K L M NO (48h to 4Fh)
P QR S T U VW (50h to 57h)
X Y Z [ ¥ ] ^ _(58h to 5Fh)
a b c d e f g(60h to 57h)
′
h i j k l m n o (68h to 6Fh)
p q r s t u v w (70h to 77h)
xyz{ I }
~
(78h to 7Fh)
i¢£¤¥ § (A0h to A7h) 8859-1
¬
9 C ª
•±23
1
º¿ (B8h to BFh)
†
–
PR
µ ¶ •(B0h to B7h)
′
14123
(A8h to AFh)
4
АБВГДЕЖЗ (C0h to C7h)
ИЙКЛМНОП (C8h to CFh)
DСТУФХЦ
ШЩЪЫЬY
˙
(D0h to C7h)
Я (D8h to DFh)
абвгдежз (E0h to E7h)
ийклмноп (E8h to FFh)
∂ стуфхц÷(F0h to F7h)
шщъыьy
ÿ(F8h to FFh)
´
No.66
No.67
to
No.99
T All the same
T All the same
T All the same
T All the same
T All the same
T All the same
T All the same
X Y Z [ \ ] ^ _ (58····
X a b c d e f g (60····
T All the same
T All the same
′
–
(78····
¢£¥ are not displayed
–
(A8···· 9 C ª¬PR are not displayed
•23
1
¿ (B8···· †
º are not displayed
xyz{I}
i¤§ (A0····
±µ(B0····
а б в г Д ЕЖЗ (C0····
ийклмноп(C8····
DСтуфOЦ
Ш щ ъ ы ь Yß (D8····
(D0····
is not displayed
T All the same
T All the same
ñòóôoö÷ (F0····∂ is not displayed
ø ù ú û ü yy (F8····
is not displayed
T All the same
T All the same
to
T All the same
¶• are not displayed
14123
4
5
• LOCATION OF CONTROLS
SECTION 2
GENERAL
– Front panel –
2
3
wg
wf
4
ws
1
wk wh
1 EDIT/TIME FADE button
0
5
wawd
w;
6
89qa7
qh
qk
qlwj
qj
qf qs
qg
qd
2 POWER button
3 PEAK SEARCH button
4 DISC1–DISC5 button
5 Fluorescent indicator tube display
6 NO DELAY button
7 X-FADE button
8 H button
9 X button
0 x button
qa A OPEN/CLOSE button
qs DISC SKIP button
qd l AMS L control
qf EX-CHANGE button
qg CLEAR button
qh CHECK button
qj M button
qk m button
ql MEGA CONTROL button
w; Disc table
wa TIME TEXT button
ws REPEAT button
wd PROGRAM button
wf SHUFFLE button
wg CONTINUE button
wh FADER button
wj PHONES jack
wk MENU button
– Rear panel –
1
342
6
1 Voltage selector switch (E and Saudi Arabia models only)
2 CONTROL A1I I jack
3 DIGITAL OUT OPTICAL connector
4 2ND CD jack
5 ANALOG OUT jack
5
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 four screws
(BVTP3 × 8)
2 two connectors
(CN601, 602)
4 claw
5 front panel section
1 wire (flat type) (19 core
(CN301)
2 connectors
(CN351)
7
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 three screws
(BVTP3 × 8)
4 two PC board holders
8
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)
9
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
10
1 belt (loading)
2 connector
(CN13)
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
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
11
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 boar d 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
FADERRFCK → GFS → Error rate display
[POWER] button to turn ON the power.
[POWER] button to turn OFF the
ButtonFunction
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.
Nothing will be displayed when the S-RAM (IC302) is faulty
or improperly soldered.
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 displayDisplays 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.
H (PLAY)Partial lighting 1 (Grid check)
X (PAUSE)26
x (STOP)Partial lighting 2 (Segment check)
EX-CHANGE17
DISC SKIP16
A OPEN/CLOSEAll lit (LED lighting)
AMS (button)30
When rotated clockwise: The music calendar
AMS (knob)
MEGA CONTROL22
X-FADE28
NO DELAY29
CLEAR18
CHECK19
M20
m21
PEAK SEARCH3
EDIT/TIME FADE4
TIME/TEXT8
FADER6
numerals light up in ascending order.
When rotated counterclockwise: The music
calendar numerals light up in descending
order.
Partial lighting 2
Light altemately
R
Light altemately
r
R
Light altemately
r
13
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. StatusAll mode
0CLOSE (Tray closed)aaA-0NG 0
1TOC readingaa aA-1NG 1
2Access to last trackaA-2NG 2
3Play of last track (3 sec)aCounter displayNG 3
4EX OPEN (Tray opened while chucking)aaA-4NG 4
5EX SKIP (Disc tray rotated)aA-5NG 5
6EX CLOSE (Tray closed)aaA-6NG 6
7Access to first trackaA-7NG 7
8Play of first track (3 sec)aCounter displayNG 8
9OPEN (tray opened)aaA-9NG 9
DISC SKIP (Disc tray rotated,
A
and next disc was selected)
aaA-ANG A
Disc tableLoadingDisplay inDisplay in
modemodeNormal operationcase of failure
The discs are selected in the order of DISC 1 → DISC 2 → DISC 3 → DISC 4 → DISC 5 → DISC 1....Empty trays are skipped.
14
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
Display contents
(
time measurement
[POWER] switch while pressing [CHECK], [ OPEN/CLOSE] and [TIME] buttons simultaneously.
ModeCheck commandDisplay
Disc table mode0: Right one turnR 12.5L ––.–
Table turning1: Left one TurnR 12.5L 10.2
Table mode
Loading time
(
measuremnet
)
2: Measurement endR12.5L 10.2
3: Undefined
4: Star positionSTART––.–
5: Open → CloseCLOSE10.2
6: Close → BU upBU UP0.7
7: BU up → EX openEX OPEN6.2
)
8: EX open → EX closeEX CLOSE10.3
9: EX close → BU downBU DOWN1.2
A: BU down → OpenOPEN9.3
FF: Measurement endCLOSE10.2
A
A
15
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