SPP-ID976 Sony, SPP-ID976 Datasheet - Page 2

• Manufacturer Part Number: SPP-ID976
• Description: (SPP-ID975 / SPP-ID976) Service Manual
• Manufacturer: Sony

SPP-ID975/ID976
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
For schematic diagrams
• All capacitors are in µF unless otherwise noted. pF: µµF
• All resistors are in
• C : panel designation.
• U : B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
• Power voltage is dc 12 V and fed with regulated dc power
• Power voltage is dc 3 V and fed with regulated dc power
• Voltage is dc with respect to ground under no-signal
• Voltages are taken with a VOM (Input impedance 10 M ).
• Signal path.
For printed wiring boards
• X : parts extracted from the component side.
•
•
• b : Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Parts face side: Parts on the parts face side seen from the
(Side A)
50 WV or less are not indicated except for electrolytics
and tantalums.
specified.
supply from external power voltage jack. (BASE PHONE)
supply from J1008 with 100
supply from battery terminal. (HANDSET)
condition.
Voltage variations may be noted due to normal produc-
tion tolerances.
N
O
P
(The other layer’s patterns are not indicated.)
z
: TX (To Tel Line)
: RX (From Tel Line)
: bell
: Carbon pattern.
: Through hole.
pattern face are indicated.
parts face are indicated.
and
1
/
4
W or less unless otherwise
in series. (BASE PHONE)
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4-3. SCHEMATIC DIAGRAM — BASE MAIN SECTION (1/2) —
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