Printed Wiring Boards And Schematic - Sony UP-890CE Service Manual

P-890CE/890MD
4-3. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE 1S COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
CNS! +12V REG.
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[2 | 1sv cs 12¥
* For Printed Wiring Boards. Ba EC [ ge, 2 nadia i) tT
+ SQAR > Soldering Side. Cs[ own} 4 Qo ue
» BERGE : Component Side. TO SW REG. a Oe sy fT cl
a = be R29
: [3 fees x ® a i
'or Schematic Diagrams. fof = a
Caution when replacing chip parts. i ay ee = !
New parts must be attached after removal of chip. 0 ET Ho
Be careful not to heat the minus side of tantalum capacitor,
because it is damaged by the heat.
All resistors are in ohms, 1/10W unless otherwise noted. = -
kQ: 10000, MQ: 1000kQ. [_conrn | 2 |
All capacitors are in »F unless otherwise noted. - — ae
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50V or less are not indicated except for electrolytics and
tantalums. iS (
All variable and adjustable
resistors have characteristic 12¥
sag aschhiz0 since Ae? i: oF eae io at OLN
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curve B, unless otherwise noted. wwe he (Es A eee |r Re me § F
=}: nonflammable resistor. nae 52 OS s © i
4} =S:: fusibe resistor.
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[____]: adjustment for repeair. G : 1
: B+ Line. _[e- : | 3
Circled numbers refer to waveforms. : > L— .
Voltages are dc between ground and measurement points.
Readings are taken with a color-bar signal input.
Readings are taken with a digital multimeter (DC10MQ). (
Voltage variations may be noted due to normal production
tolerances.
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Note: The components iden ie y shading and
mark A are critical for safety. Replace only
with part number specified.
Note: Les composants identifiés par une trame et
par une marque A\ sont d'une importance
critique pour la sécurité. Ne les remplacer que
par des piéces de numéro spécifié.
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06 | MA-19 MA-19 | . — 26 —