Sony SAT-B55 RM-Y139 - Manual (Page 16)

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SAT-A55/B55
4-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
4-2. CIRCUIT BOARDS LOCATION
• All capacitors are in
µ
F unless otherwise noted.
pF:
µµ
F 50 WV or less are not indicated except for electrolytic and
tantalums.
• All electrolytics are 50V unless otherwise specified.
• Indication of resistance, which does not have one for
rating electrical power, is as follows:
Pitch: 5mm
Rating electrical power 1/4W (CHIP: 1/10W)
• All resistors are in ohms.
K
Ω
= 1000
Ω
M
Ω
= 1000K
Ω
• : nonflammable resistor
• : fusible resistor
• : internal component
• : panel designation and adjustment for repair
• : earth-ground
• : earth-chassis
• All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
• All voltages are in Volts
• Readings are taken with a 10M ohm digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal
production tolerance.
• * : cannot be measured
• : B + Line
•
-----
: B
−
Line
• : Signal path
HB
A
SC
[SMART CARD]
SC
SC BOARD SCHEMATIC DIAGRAM
[FRONT PANEL]
HB BOARD SCHEMATIC DIAGRAM
HB
1. SATA50 SC H bd.p65 1/12/00, 3:46 PM 1