Diagrams - Sony HCD-EH15 Service Manual

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : parts extracted from the conductor side.
• W : indicates side identifi ed with part number.
• : internal component.
f
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
• Indication of transistor.
C
Q These are omitted.
B E
Q
B C E
These are omitted.
HCD-EH15
SECTION 7

DIAGRAMS

For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 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
specifi ed.
• : internal component.
f
• C : panel designation.
Note: Note:
The components identi- Les composants identifi és
fi ed by mark 0 or dotted par une marque 0 sont
line with mark 0 are criti- critiques pour la sécurité.
cal for safety. Ne les remplacer que par
Replace only with part une piéce portant le nu-
number specifi ed. méro spécifi é.
• A : B+ Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– CD Board –
no mark : CD PLAY
– Other Section –
no mark : FM
[ ] : AM
( ) : CD PLAY
< > : TAPE PLAY
{ } : REC
• Voltages are taken with 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.
: FM
F
: AM
f
: CD PLAY
J
: TAPE PLAY
E
: REC
: AUDIO IN
h
• Abbreviation
AR : Argentina model
AUS : Australian model
CND : Canadian model
E51 : Chilean and Peruvian model
KR : Korean model
MX : Mexican model
RU : Russian model
SP : Singapore model
TW : Taiwan model
• Circuit Board Location
MAIN board
PANEL board
• Waveforms
– CD Board –
IC101 (RFi)
(CD play mode)
0.5 to 1.3 Vp-p
200 mV/DIV, 500 ns/DIV
IC101 (XO)
(CD play mode)
3.3 Vp-p
59.1 ns
1 V/DIV, 20 ns/DIV
13 13
CD board
VOLTAGE-SEL board
(Chilean and Peruvian, Singapore models)
PT-AC board
– MAIN Board – – PANEL Board –
IC801 (XOUT) IC701
1.2 Vp-p
13.4 μs
1 V/DIV, 10 μs/DIV
IC701
IC861 (XOUT)
5 Vp-p
230 ns
2 V/DIV, 100 ns/DIV
Q507 (Collector)
(Tape REC mode)
9.8 Vp-p
14.6 s
5 V/DIV, 10 s/DIV
HCD-EH15
(X3)
3 Vp-p
30.8 μs
2 V/DIV, 20 μs/DIV
(X1)
3.4 Vp-p
182 ns
2 V/DIV, 100 ns/DIV