Sony HCD-GRX50 - Note for Printed Wiring Boards and Schematic Diagrams

HCD-GRX50/R770/RXD7
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7-5. 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.
• p : parts mounted on the conductor side.
•
¢
: internal component.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transisitor.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
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.
•
¢
: internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• 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/AM)
E : PLAYBACK (DECK A)
d : PLAYBACK (DECK B)
G : RECORD
J : CD PLAY (ANALOG OUT)
c : CD PLAY (DIGITAL OUT)
N : MIC INPUT
• Abbreviation
AED : North European model.
AR : Argentine model.
AUS : Australian model.
CND : Canadian model.
E2 : 120 V AC Area in E model.
E3 : 240 V AC Area in E model.
EA3 : Saudi Arabia model.
EA4 : Israel model.
G : German model.
KR : Korean model.
MX : Mexican model.
SP : Singapore model.
TH : Thai model.
TW : Taiwan model.
Note:
The components identi-
fied by mark ! or dotted
line with mark ! are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
B
These are omitted.
CE
Q
B
These are omitted.
CE
Q
• Circuit Boards Location
• Abbreviation
AR : Argentine
AUS : Australian
CND : Canadian
E2 : 120 V AC Area in E model
E3 : 240 V AC Area in E model
EA3 : SaudiArabia
EA4 : Israel
KR : Korean
MX : Mexican
SP : Singapore
TH : Thai
TW : Taiwan
CD SW board
SUB TRANS board
(RXD7/R770)
TRANS board
MAIN board
PANEL board
TUNER PACK
(CND, E2, MX)
TUNER (FM/AM)
(AEP, UK, EA4, TH, AR, KR, AUS)
TUNER (FM/MW/SW)
(E3, EA3, SP, TW)
CONNECTOR board
SENSOR board
MOTOR (TURN) board
MOTOR (SLIDE) board
LEAF SW board
AUDIO board
BD board