ta085.pdf

PSP-2000 TA-085

SM-PSP-3083E-01

PSP-2000 series TA-085

CS Department

BOARD SERVICE MANUAL 1st edition Level 3

Reproduction Prohibited

PSP-2000 TA-085

SAFETY CHECK-OUT

After correcting the original service problem, perform the following

safety checks before releasing the set to the customer:

1. Check the area of your repair for unsoldered or poorly

soldered connections. Check the entire board surface for

solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are

“pinched” or contact high-wattage resistors.

3. Look for unauthorized replacement parts, particularly

transistors, that were installed during a previous repair. Point

them out to the customer and recommend their replacement.

4. Look for parts which, though functioning, show obvious

signs of deterioration. Point them out to the customer and

recommend their replacement.

5. Check the power cable for cracks and abrasion. Recommend

the replacement of any such power cable to the customer.

6.ChecktheB+voltagetoseeitisatthevaluesspeciied.

7. Check the 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

microampers.).

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”

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 passive VOM that is suitable. Nearly all

battery operated digital multimeters that have a 2 V AC range

are suitable. (See Fig. A)

CAUTION

The use of optical instruments with this product will increase

eye hazard. As the laser beam used in this UMD Drive is

harmful to eyes, do not attempt disassemble the cabinet.

Referservicingtoqualiiedpersonnelonly.

ThisapplianceisclassiiedasaCLASS1LASERproductunder

IEC60825-1:2001.

To Exposed Metal

Parts on Set

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous

radiation exposure.

0.15  F

1.5 k 

voltmeter

(0.75 V)

WARNING!!

Earth Ground

WHEN SERVICING, DO NOT APPROACH THE LASER

EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS

NECESSARY TO CONFIRM LASER BEAM EMISSION,

BE SURE TO OBSERVE FROM A DISTANCE OF

MORE THAN 25 cm FROM THE SURFACE OF THE

OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.

Fig. A. Using an AC voltmeter to check AC leakage.

SAFETY-RELATED COMPONENT WARNING!!

CAUTION

RISKOFEXPLOSIONIFBATTERYISREPLACEDBYAN

INCORRECTTYPE.

DISPOSEOFUSEDBATTERIESACCORDINGTOTHE

INSTRUCTIONS.

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

PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉURITÉ!!

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 COMPOSANTS QUE PAR DES PIÈCES SONY

DONT LES NUMÉROS SONT DONNÉS DANS CE

MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS

PAR SONY.

– 2 –

Reproduction Prohibited

PSP-2000 TA-085

TABLE OF CONTENTS

1. CIRCUIT DIAGRAM

1-1. TA-085Board(1/10) .................................... 1-2

1-2. TA-085Board(2/10) .................................... 1-3

1-3. TA-085Board(3/10) .................................... 1-4

1-4. TA-085Board(4/10) .................................... 1-5

1-5. TA-085Board(5/10) .................................... 1-6

1-6. TA-085Board(6/10) .................................... 1-7

1-7. TA-085Board(7/10) ....................................1-8

1-8. TA-085Board(8/10) .................................... 1-9

1-9. TA-085Board(9/10) .................................. 1-10

1-10.TA-085Board(10/10) ................................ 1-11

1-11. HP-142 Board............................................. 1-12

1-12. SW-510 Board ............................................ 1-13

2. PRINTED WIRING BOARDS

2-1. TA-085Board(SideA)................................. 2-1

2-2. TA-085Board(SideB)................................. 2-2

2-3. HP-142 Board............................................... 2-3

2-4. SW-510 Board .............................................. 2-4

3. ELECTRICAL PARTS LIST .......................... 4-1

– 3 –

Reproduction Prohibited

SECTION 1

CIRCUIT DIAGRAM

PSP-2000 TA-085

Note on Schematic Diagram:

• All capacitors are in m F unless otherwise noted.

pF: mm F 50 WV or less are not indicated except for

electrolytics and tantalums.

• All resistors are in W and 1 / 4 W or less unless

otherwise speciied.

• % : indicates tolerance.

Note:

T h e c o m p o n e n t s

identified by mark ! or

dotted line with mark !

are critical for safety.

Replace only with part

number speciied.

1-1

Note:

Les composants identiiés

par une marque ! sont

critiques pour la sécurité.

N e l e s r e m p l a c e r q u e

par une piéce portant le

numéro spéciié.

Reproduction Prohibited

PSP-2000 TA-085

1-1. TA-085 BOARD (1/10)

TA-085 BOARD (1/10)

C1010 C1011

C1159 C1143 C1005 C1182 C1024

C1025

R1039 R1040

C1145 C1144

JS1001

JS1002

JS1003

JS1004

C1091

FL1001

IC1001

FL1002

C1150

C1149 C1148 C1147

R1038

CL1004

CL1005

FB1001

CL1009

C1162

R1042

Q1002

R1036

C1153 R1014

R1031

R1029

R1030

R1028

CN1001

LF1001

R1026

JS1022

IC1001

CL1092

CL1096

CL1007

CL1008

R1144

CL1095

ET1002

CL1094

JL1009

JL1010

JL1011

JL1012

JL1013

R1041

R1145

CL1001

R1001 R1002

R1158

CL1006

CL1086

CL1087

CL1091

R1161

R1027

C1194 R1160

R1025

CN1003

10P

R1019

JL1001

JL1002

JL1003

JL1004

JL1005

JL1006

JL1007

JL1008

Q1004

R1034

R1155

R1154

R1156

R1157

R1037

CL1097

R1024

R1152

R1153

C1001 R1032 C1002

C1041

C1008 C1017

C1012 C1013 C1193 C1045

C1055

R1008 R1009

1-2

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