Sony HCD-RX77 - Notes on Diagrams and Boards; Schematic Diagram Notes

HCD-GRX7/GRX7J/R700/RX77/RX77S
– 33 –
– 34 –
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.
• C : panel designation.
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• p : parts mounted on the conductor side.
•
®
: Through hole.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
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.
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.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• 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
f : AM
E : PB (DECK A)
d : PB (DECK B)
G : REC (DECK B)
J : CD
c : digital out
N : Mic in
• Abbreviation
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.
EE : East European model.
G : German model.
HK : Hong Kong model.
IA : Indonesian model.
JE : Tourist model.
MX : Mexican model.
MY : Malaysia model.
SAF : South African model.
SP : Singapore model.
TH : Thai model.
TW : Taiwan model.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
– MAIN Section –
4.4 Vp-p
200 ns
2 IC501 !¢ (XT1)
2.2 Vp-p
30.6
µ
s
– PANEL Section –
3 IC601 9 (X-IN)
3.6 Vp-p
126 ns
C
B
These are omitted.
E
Q
• Indication of transistor.
B
These are omitted.
CE
Q
5 Vp-p
230
µ
s
0.5 Vp-p
2 IC101 2 (FEI) (PLAY MODE)
5 IC103 ^º (XPCK)
4 IC103 @¶ (MDP)
2.5 Vp-p
7.8 µ s
0.2 Vp-p
3 IC101 $¶ (TEI) (PLAY MODE)
1.3 Vp-p
6 IC103 ^™ (RFCK)
5 Vp-p
135 µ s
5 Vp-p
135
µ
s
7 IC103 &¢ (WFCK)
8 IC103 *ª (XTAI)
2.6 Vp-p
16.9344 MHz
• Waveforms
– TUNER Section –
(AEP, UK, German)
1 IC21 @¢ (XOUT)
1 IC501 !¡ (X1)
– CD Section –
1 IC101 #£ (RF O) (PLAY MODE)
4.2 Vp-p
4.5 MHz
2 IC1752 !¢ (OEC0)
2 Vp-p
4.332 MHz
– TUNER Section –
(East European, CIS)
1 IC21 @¢ (XOUT)
4.2 Vp-p
4.5 MHz