Sony MHC-NX1 Service Manual - Page 12

Diagrams, Printed, Wiring, Boards, Schematic

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SECTION 5 DIAGRAMS 5-1. 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. • x : parts mounted on the conductor side. • b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated) • Indication of transistor. Q BCE Q These are omitted. BCE These are omitted. 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 1/4 W or less unless otherwise 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. Note: Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. • 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 : TUNER (FM) E : TAPE PLAYBACK G : RECORD J : CD PLAY N : MIC INPUT • Abbreviation AUS : Australian model MY : Malaysia model CND : Canadian model SP : Singapore model JE : Tourist model TH : Thai model KR : Korean model • IC Block Diagram - MAIN Board - IC401 BA3830F R02 1 R01 2 LINE NF 3 LINE IN 4 REFERENCE CURRENT REFERENCE CURRENT - + REC NF 5 REC IN 6 - + RESET C 7 BIAS C 8 GND 9 RESET 18 RESET BAND PASS FILTER DET 17 F01 16 F02 15 F03 14 F04 13 F05 12 F06 11 REC LEVEL 10 VCC • Waveforms - MAIN Board - 1 IC501 q; (XCIN) 32.768 kHz 2 IC501 qd (XOUT) 1.4 Vp-p 3 Vp-p • Circuit Boards Location SUB TRANS board (US, Canadian, AEP, UK) TRANS board BACK LIGHT board PANEL baord R board 16 MHz 11 11 TUNER pack SURROUND AMP board (NX3) MAIN board PA board

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11
11
SECTION
5
DIAGRAMS
5-1.
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.
•
x
: parts mounted on the conductor side.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated)
•
Indication of transistor.
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
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
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 M
Ω
).
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
: TUNER (FM)
E
: TAPE PLAYBACK
G
: RECORD
J
: CD PLAY
N
: MIC INPUT
• Abbreviation
AUS
: Australian model
CND
: Canadian model
JE
: Tourist model
KR
: Korean model
Note:
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
•
IC Block Diagram
– MAIN Board –
IC401
BA3830F
• Waveforms
– MAIN Board –
1
IC501
q;
(XCIN)
2
IC501
qd
(XOUT)
F01
R02
R01
LINE NF
LINE IN
REFERENCE
CURRENT
REFERENCE
CURRENT
RESET
BAND
PASS
FILTER
DET
17
RESET
18
F02
16
F03
15
F04
14
F05
13
F06
12
REC LEVEL
11
VCC
10
4
3
2
1
+
–
REC NF
REC IN
6
RESET C
7
BIAS C
8
GND
9
5
+
–
1.4 Vp-p
32.768 kHz
3 Vp-p
16 MHz
•
Circuit Boards Location
SUB TRANS board
(US, Canadian, AEP, UK)
TRANS board
BACK LIGHT board
PANEL baord
R board
PA board
MAIN board
SURROUND AMP board
(NX3)
TUNER pack
MY
: Malaysia model
SP
: Singapore model
TH
: Thai model