Sony SPP-874, Service Manual, Page: 27 / 38

5-8. SCHEMATIC DIAGRAM — HAND KEY SECTION — • Refer to page 37 for IC Block Diagrams.
– 35 – – 36 –
SPP-874/884
Note:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 3.6 V and fed with regulated dc power
supply from battery connector (CN2).
• Voltage is dc with respect to ground under no-signal
condition.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Abbreviation
E12 : 220-240V area of E model
E92 : 120V area of E model
(Page 32)