MHC-V50/V50D
MHC-V50/V50D
3838
Note on Schematic Diagram:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 V or less are not indicated except for electrolytics
and tantalums.
• All resistors are in and
1
/4 W or less unless otherwise
specifi ed.
•
2
: nonfl ammable resistor.
• C : panel designation.
• Note for Printed Wiring Boards and Schematic Diagrams
• A : B+ Line.
• B : B– Line.
• H : Adjustment for repair.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
L : USB
N : MIC
• Abbreviation
AUS : Australian model
CND : Canadian model
LA9 : Latin-American model
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• : parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
AUS : Australian model
CND : Canadian model
LA9 : Latin-American model
C
B
These are omitted.
E
Q
t Indication of transistor
D
G
These are omitted.
S
Q
B
These are omitted.
CE
Q
B
These are omitted.
CE
Q
Note 1: When the DAMP board is replaced, spread the
compound referring to “NOTE OF REPLACING
THE IC2002 and IC2003 ON THE DAMP BOARD
AND THE COMPLETE DAMP BOARD” on
servicing notes (page 5).
Note 2: When the MS-476 board is defective, exchange
the entire CDM90 ASSY.
Note 4: When the SENSOR board is defective, exchange
the SERVICE, TOP PANEL ASSY.
Note 3: When the complete MOTHERBOARD board
is replaced, refer to “NOTE OF REPLACING
MOTHERBOARD BOARD OR BLUETOOTH
MODULE OR RC-S730 (WW) BOARD” on page 6.
Note: The components identifi ed by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specifi ed.
Note: Les composants identifi és par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une piéce portant
le numéro spécifi é.
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