Diagrams; Notes For Printed Wiring Boards And Schematic Diagrams - Sony STR-NX5MD Service Manual

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.
• : parts mounted on the conductor side.
x
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated)
• Indication of transistor.
Q
B C E
These are omitted.
Q
B C E
These are omitted.
• IC Block Diagram
– MAIN Board –
IC401 BA3830F
RESET 18 RESET
REFERENCE
R02 1
CURRENT
REFERENCE
R01 2
CURRENT
17 F01
LINE NF 3
16 F02
LINE IN 4 BAND
–
15 F03
PASS
+
14 F04
FILTER
13 F05
DET
12 F06
REC NF 5
REC IN 6
–
11 REC LEVEL
+
10 VCC
7
RESET C
BIAS C 8
GND 9
SECTION 4

DIAGRAMS

Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
• f : internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• V : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM)
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
E
: MD PLAY
J
: CD PLAY
j
: MD REC
• Abbreviation
MY : Malaysia model
SP : Singapore model
G : German model
AED : North European model
• Waveforms
– MAIN Board –
1 IC501 qa (XCOUT)
3 Vp-p
32.768 kHz
2 IC501 qd (XOUT)
2.8 Vp-p
16.025 MHz
• Circuit Boards Location
TRANS board
BACK LIGHT board
PANEL board
R board
9 9
SUB TRANS board
(AEP, UK, G, AED, CIS)
TUNER pack
PA board
MAIN board