Circuit Boards Location; Printed Wiring Boards And Schematic Diagrams - Sony KV-20V50 Service Manual

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Operating instructions manual (60 pages)

Manual (62 pages)

Service manual (86 pages)

Table Of Contents

Table of Contents

Enlarged version

6-2.

CIRCUIT BOARDS LOCATfON

6-3.

PRINTED WIRING BOARDS AND

SCHEMATIC DIAGRAMS

Note:

All capacitors are in uF unless otherwise noted.

and tantalums.

All electrolytics are in 50V unless otherwise specified.

Indication of resistance, which does not have one for rating

electrical power, is as follows.

Chips resistors are l/l OW.

All resistors are in ohms.

All variable and adjustable resistors have characteristic curve

B, unless otherwise noted.

The components identified by 0 in this manual have been

carefully factory-selected for each set in order to satisfy

regulations regarding X-ray radiation.

Should replacement be required, replace only with the value

originally used.

When replacing components identified by 0 , make the

necessary adjustments indicated. If results do not meet the

specified value, change the component identified by

repeat the adjustment until the specified value is achieved.

(Refer to R511 and R537 on page 27,28)

When replacing the part in below table be sure to parform the

related adjustment.

Part replaced ( 0 )

C523, C524, R534,

All voltages are in V.

Voltage are dc with respect to ground unless otherwise noted

Readings are taken with a IO MO digital multimeter.

Readings are taken with a color-bar signaLinput.

tolerance.

Circled numbers are waveform references

. Lcyl : B+ line.

Reference

information

RESISTOR : RN

: FPRD

: FUSE

: RS

: RB

: LF-8L

COIL

CAPACITOR : TA

: PS

: PP

: PT

: MPS

: MPP

: ALB

: ALT

: ALR

The components identified by shading and mark

are critical for safety. Replace only with part number #

specified.

The symbol e indicate fast operating fuse. 8;

Replace only with fuse of same rating as marked. $$

and

marque A sont critiques pour la securite. Ne les ! $ $

remplacer que par une piece portant le numero g

Le symbole -E31- indique une fusible a action rapide. !#

comme maque.

.. .

. . . : . : . ~ . : : : : . : : : : : : : : ; : : : : : : : : : : : : : : : : : : : : : : : : : : ~ : : i : w a: i : : : : : : : : : ~ ~: : : : : ~ ~: ~ : ~ ~~~~: ~ , : ~ ~~: ~ , : ~ : ~ , : ~ ~: ~ ~~: ~ . : ~ ~~: ~ ~~; ~ ~~~~: ~ ~~: ~ ; ~ : ~ : ~ ~?: : ~ ~: ~ ~~: ~ ~~: : ~ . : ~ : ~ : ~ : ~ ~: ~ ~

Adjustment (

B+ HOLD-DOWN

D BOARD

HOLD-DOWN

(R537)

G BOARD

METAL FILM

SOLID

NONFLAMMABLE

CARBON

NONFLAMMABLE

FUSIBLE