Printed Wiring Boards - Bd Section; Schematic Diagram - Bd Section - Sony FH-G50 Service Manual

6-8, PRINTED WIRING BOARDS — BD SECTION —
© Refer to page 24 for Semiconductor Lead Layouts.
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(See page 20)
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MAIN BOARD (Seepage 7)
OPTICAL PICK-UP)
BLOCK KSS-2138
6-9. SCHEMATIC DIAGRAM — BD SECTION — @ Refer to page 45 for IC Block Diagrams.
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© SEMICONDUCTOR - - - - - - - - - - - - - - - - - -
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Note:
+ O— : parts extracted from the component side.
: : Patter from the side which enables seeing
(The other layers' patterns are not indicated)
Caution :
Pattern face side: Parts on the pattern face side seen from
(Conductor Side) the pattern face are indicated
Parts face side: Parts on the parts face side seen from the
(Component side) parts face are indicated.
— 42 —
Note :
+ All capacitors are in j. F unless otherwise noted. pF: uu F
50WV or less are not indicated except for electrolytics and
tantalums.
+ All resistors are in Q and 1/10W or less unless otherwise
specified.
ted line with mark
are critical for safety.
Replace only with part
number specified.
Note : Note :
The components identi- | Les composants identifiés par
fied by mark A\ or dot- | une marque /K\ sont critiques
pour la sécurité,
Ne les remplacer que par une
piéce portant le numéro spéci-
fig.
+ [B+ | : B+ Line
+ [J : adjustment for repair.
+ Voltage and waveforms are de with respect to ground under
no-signal (CD) conditions.
no mark : STOP (CD)
+ Voltages are taken with a VOM ( Input impedance 10M Q ).
Voltage variations may be noted due to normal production
tolerances.
43
+ Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
+ Circled numbers refer to waveforms.
+ Signal path.
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@ WAVEFORMS
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IC101 @ 1C103
iment ae
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1C101 @ 10103 ®
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Ic101 @ IC101 @
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1C103 © 1C103 @
— 44 —
HCD-H501