Sony CDP-D500 User manual

MICROFILM
COMPACT DISC PLAYER
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM19G-5R
Base Unit Name BU-5R
Optical Pick-up Name KSS-213B/K-N
US Model
Canadian Model
AEP Model
UK Model
SERVICE MANUAL
CDP-D500
SPECIFICATIONS
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Also made in Heiloo, Holland.

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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.
This appliance is classified as a
CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on the
rear exterior.
CAUTION
Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.
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 PUB-
LISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE !
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.
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Also made in Heiloo, Holland.

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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 forAC 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 microampers.). Leak-
age 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 aVOM
or battery-operatedAC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig.A)
1.5 k Ω 0.15 µ FAC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
TABLE OF CONTENTS
1. SERVICING NOTES................................................... 4
2. GENERAL ..................................................................... 5
3. DISASSEMBLY............................................................ 13
4. TEST MODE ................................................................. 15
5. ELECTRICAL ADJUSTMENTS ............................ 16
6. DIAGRAMS
6-1. Block Diagram................................................................... 19
6-2. Printed Wiring Boards – CD Section –.............................. 23
6-3. Schematic Diagram – CD Section – .................................. 25
6-4. Printed Wiring Boards – Main Section –........................... 28
6-5. Schematic Diagram – Main Section – ............................... 31
6-6. Schematic Diagram – Panel Section –............................... 36
6-7. Printed Wiring Boards – Panel Section – .......................... 41
6-8. IC Pin Function Description .............................................. 46
7. EXPLODEDVIEWS ................................................... 49
8. ELECTRICAL PARTS LIST .................................... 54
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Also made in Heiloo, Holland.

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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, ob-
serve from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
1. Make POWER switch on with no disc inserted and disc table
closed.
2. Confirm that the following operation is performed while ob-
serving the objective lens.
Front Panel side
1 Confirm that laser beam spread.
2 Up and down motion of the objective lens. (3 times)
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH
TURNS OFF
Insert a tapering driver into the aperture of the unit bottom,
and turn to the direction of arrow.
* To close the disc tray, turn the driver in the reverse direction.
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6/8/15
Also made in Heiloo, Holland.

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SECTION 2
GENERAL
This section is extracted
from instruction manual.
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Playing CDs
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Note: Follow the disassembly procedure in the numerical order given.
CASE
SECTION 3
DISASSEMBLY
LOADING PANEL
1 Insert a tarpering driver into the
aperture of the unit bottom,
and turn to the direction of arrow.
1 three screws
(M3
× 10)
2 case
1 three screws
(M3
× 10)
1 three screws
(M3
× 10)
1 two screws
(M3
× 10)
3 two screws
(BVTP3
× 10)
4 loading panel
2 Pull the disc table
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Also made in Heiloo, Holland.

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FRONT PANEL SECTION
3 three screws
(BVTT3
× 8)
4 front panel
3 four screws
(BVTT3
× 8)
2 connector
(CN331)
MECHANISM DECK
4 mechanism deck
3 four screws
(BVTT3
× 8)
1 flat wire (27 core)
(CN501)
1 flat wire (19 core)
(CN401)
2 connector
(CN531)
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Also made in Heiloo, Holland.

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SECTION 4
TEST MODE
Key Check
(tact switch)
1) Connect the test point TP (ADJ) on MAIN board to the
ground with a lead wire on MAIN board.
2) Turn on the power with turning OFF the TIMER SW.
↓
“KEY TEST” shall be shown.
3) When the TACT SW is pushed, the order of pushing is shown
on digit 0 and 1.
4) It will count up until 34 which is the maximum key number.
“END” will be shown after 34.
(slide switch)
Words as below shall be shown.
CXD2545 Servo Check
1) Connect the test point TP (ADJ) on MAIN board to the
ground with a lead wire on MAIN board.
2) Turn on the power, tuning ON the TIMER SW.
3) Establish as below articles with the combination of TENKEY
and TIMER SW.
TENKEY MODE
TIMER SW OFF 3 Tracking servo off
8 Tracking servo on
TIMER SW ON 1
S-cuve observe
OFF ON
TIMER SW NULL (not shown) REPEAT
REMOTE CONTINUE/ Parallel ON →PROGRAM
SELECT SW PROGRAM Serial ON →CONTINUE
AUTO CUE/ NULL (not shown) A.CUE ON →AUTO CUE
PAUSE SW
A.PAUSE ON →AUTO PAUSE
(JOG)
When dial the VARI SPEED JOG/AMS dial, the value on digit
6 and 7 will be clocwise/rev clockwise.
(shuttle)
Is it turns to forward direction, calendar will show 1·2·3 and 4
and if turns to backward direction. Calendar will show 16·17·18
and 19.
EDP Bridge Check
1) Connect the test point TP (ADJ) on MAIN board to the
ground with a lead wire on MAIN board.
2) Turn on the power, with turning ON the TIMER SW.
3) Elements next to digit/segment will turn on and off mutu-
ally.
4) When both sides elements turn on at the same time the grid
is a bridge.
5) When the calendar does not work correctly, segment is a
bridge.
S-RAM Verify Check
1) Connect the test point TP (ADJ) on MAIN board to the
ground with a lead wire on MAIN board.
2) Turn on the power, with turning ON the TIMER SW and
CUE SW.
3) Address (0x8000~0x9fef) will be written by µ-com on the
digit 5 and 6, and they will be read by µ-com on the digit 8
and 9, then the value shall be shown on the digit 0 to 3.
When the written value do not agree with the read value,
“VERIFY ERROR” will be shown.
After that, it will show the position of address line and the
data line which are cause of S-RAM bridge and a float.
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SECTION 5
ELECTRICAL ADJUSTMENTS
Note:
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. UseYEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩimpedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the fol-
lowing checks.
S-Curve Check
Note: •Try to measure several times to make sure that the ratio of
A:B or B:A is more than 10:7.
•Take sweep time as long as possible and light up the bright-
ness to obtain best waveform.
RF Level Check
Procedure:
1. Connect the test point TP (ADJ) on MAIN board to the ground
with a lead wire on MAIN board.
2. Connect oscilloscope to test point TP (FE) on BSL board.
3. Turned Power switch on to set ADJ mode by TIMER SW OFF.
4. Put disc (YEDS-18) in and turned Power switch on again and
actuate the focus search. (actuate the focus search when disc
table is moving in and out.)
5. TIMER SW ON.
6. Press the “1” button (s-cuve observe mode).
7. Check the oscilloscope waveform (S-curve) is symmetrical be-
tweenA and B. And confirm peak to peak level within 3 ± 1Vp-p.
S-curve waveform
Note: A clear RF signal waveform means that the shape “≈” can
be clearly distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level: 1.2 Vp-p
+0.25
–0.20
E-F Balance (1Track Jump) Check
E-F Balance Check
+
–
BSL board
TP (FE)
TP (VC)
oscilloscope
Procedure:
1. Connect oscilloscope to test point TP (RF) on BSL board.
2. Turned Power switch on.
3. Put disc (YEDS-18) in to play the number five track.
4. Confirm that oscilloscope waveform is clear and check RF sig-
nal level is correct or not.
+
–
BSL board
TP (RF)
TP (VC)
oscilloscope
+
–
BSL board
TP (TE)
TP (VC)
oscilloscope
Procedure:
1. Connect the test point TP (ADJ) on MAIN board on the ground
with a lead wire on MAIN board.
2. Connect oscilloscope to test point TP (TE) on BSL board.
3. Turn the Power switch on to set the ADJ mode. (TIMER SW
OFF)
4. Put disc (YEDS-18) in to play the number five track.
5. Press the “3” button. (The tracking servo and the sledding servo
are turned OFF.)
Procedure:
1. Connect oscilloscope to test point TP (TE) on BSL board.
2. Turned Power switch on.
3. Put disc (YEDS-18) in to play the number five track.
4. Press the “P(Pause)” button. (Becomes the 1 track jump mode)
5. Check the level B of the oscilloscope’s waveform and the A
(DC voltage) of the center of the Travers waveform.
Confirm the following :
A/B ×100 = less than ± 6 (%)
1 track jump waveform
+
–
BSL board
TP (TE)
TP (VC)
oscilloscope
A
B
symmetry
within 3
± 1 Vp-p
Center of the waveform
B
level : 1.5 Vp-p symmetry
A (DC voltage)
0V
+1.5
–0.5
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6. Check the level B of the oscilloscope’s waveform and the A
(DC voltage) of the center of the Traverse waveform.
Confirm the following:
A/B ×100 = less than ± 6 (%)
RF PLL Free-run Frequency Check
Procedure:
1. Connect frequency counter to test point (XPLCK) with a lead
wire.
Center of the waveform
B
level : 1.5 Vp-p
A (DC voltage
)
0V
Traverse waveform
+1.5
–0.5
7. Press the “8” button. (The tracking servo and sledding servo are
turned ON.) Confirm the C (DC voltage) is almost equal to the
A (DC voltage) is step 6.
Tracking servo
Sledding servo
OFF
C (DC
voltage
)
0V
Traverse waveform
Tracking servo
Sledding servo
ON
8. Disconnect the lead wire of TP (ADJ) connected in step 1.
2. Turned Power switch on.
3. Put the disc (YEDS-18) in to play the number five track.
Confirm that reading on frequency counter is 4.3218 MHz.
Balance Level Adjustment
(Generally it does not need to adjust because it has alredy adjusted
before shipping.)
1. Turn on the disc (YEDS-18) and play the number 2 track (1 kHz
0 dBs)
2. Connect level meter to BALANCE OUT (J304)
3. Adjustment level
BALANCE OUT: +24 dBs
RV101 (L-CH)
RV201 (R-CH)
+
–
frequency counte
r
MAIN board
TP (XPLCK)
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Also made in Heiloo, Holland.

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[MAIN BOARD] — Component side —
IC21 IC31
TP
(VC)
TP
(RF) TP
(FE)
TP (TE)
M102
CN01
[BSL BOARD] — Side B —
TP
(VC)
TP (TE1 )
TP
(FE1)
TP
(XPLCK)
IC401
IC305
IC304
IC303
IC302
IC301
IC601
C301
C302
TP (ADJ)
R500
RV101
BALANCE LEVEL (L-CH)
RV201
BALANCE LEVEL (R-CH)
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•Circuit Boards Location
BSL board
LOADING board
H.P. AMP
board
SLIDE SW board
PANEL board
JOG SHUTTLE board
MAIN board
XLR board
I/O board
AC SW board
ENC board
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