Read Sony MHC-VX888 / TA-DX80 Service Manual online
TA-DX80
5
5
3-3.
FRONT PANEL SECTION
3
screw
(BVTP3
(BVTP3
×
10)
5
two screws
(BVTP3
(BVTP3
×
10)
6
two screws
(BVTP3
(BVTP3
×
16)
3
two screws
(BVTP3
(BVTP3
×
8)
4
8
MAIN board
1
wire (flat type) (15 core)
(CN111)
(CN111)
7
heat sink assy
2
connector
(CN501)
(CN501)
4
front panel section
1
wire (flat type) (15 core)
(CN111)
(CN111)
3
claw
2
three screws
(BVTP3
(BVTP3
×
8)
3-4.
MAIN BOARD
SECTION 4
DIAGRAMS
4-1.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
no mark : POWER ON
tion tolerances.
no mark : POWER ON
• Signal path.
F
: AUDIO
• Abbreviation
BR
: Brazilian model
E91
: 220 V AC area in E model
MX
: Mexican model
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Abbreviation
E91
: 220 V AC area in E model
MX
: Mexican model
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