DOWNLOAD Sony ZS-M50 Service Manual ↓ Size: 14.25 MB | Pages: 78 in PDF or view online for FREE

Model
ZS-M50
Pages
78
Size
14.25 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
zs-m50.pdf
Date
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– 47 –
– 48 –
– 50 –
– 49 –
ZS-M50
Note:
• All capacitors are in 
µ
F unless otherwise noted.  pF: 
µµ
F
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.
Note: The components identified by mark 
!
 or dotted
line with mark 
!
 are critical for safety.
Replace only with part number specified.
•
A
: B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD STOP
(
) : CD PLAY
• 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.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD
6-5. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) –
 r
 Refer to page 89 for IC Block Diagrams.
r
 Waveforms – Main Section (1/3) –
1
IC701  
#¡
  (RFO)
PLAY MODE
VOLT/DIV : 0.2 V AC
TIME/DIV : 0.5 
µ
sec
4
IC702  
@ª
  (PCO)
VOLT/DIV : 1 V AC
TIME/DIV : 2 
µ
sec
2
IC701  
$¡
  (TEO)
PLAY MODE
VOLT/DIV : 0.2 V AC
TIME/DIV : 0.5 msec
5
IC702  
$º
  (LRCKI)
VOLT/DIV : 1 V AC
TIME/DIV : 5 
µ
sec
3
IC701  
$•
  (FEO)
PLAY MODE
VOLT/DIV : 0.2 V AC
TIME/DIV : 0.2 msec
6
IC702  
&¡
  (XTAO)
PLAY MODE
VOLT/DIV : 0.5 V AC
TIME/DIV : 20 nsec
1.0 – 1.5 Vp-p
0.7 Vp-p
0.6 Vp-p
3.2 Vp-p
8.7 
µ
sec
3.3 Vp-p
23.25 
µ
sec
1.3 Vp-p
16.44MHz
– 53 –
– 54 –
– 51 –
– 52 –
ZS-M50
Note:
• All capacitors are in 
µ
F unless otherwise noted.  pF: 
µµ
F
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.
•
5
: fusible resistor.
Note: The components identified by mark 
!
 or dotted
line with mark 
!
 are critical for safety.
Replace only with part number specified.
•
A
: B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : 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
: FM
E
: MD PLAY
q
: MD REC
J
: CD
6-6. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) –  
r
 Refer to page 89 for IC Block Diagrams.
r
 Waveforms – Main Section (2/3) –
1
IC405  
$™
  XTAL
VOLT/DIV : 0.1 V AC
TIME/DIV : 50 nsec
2
IC405  
*¶
  TX
VOLT/DIV : 1 V AC
TIME/DIV : 10 
µ
sec
0.5 Vp-p
8 MHz
3.0 Vp-p
32 kHz
3
IC406  
!¢
  XO
VOLT/DIV : 0.5 V AC
TIME/DIV : 0.1 
µ
sec
2.5 Vp-p
4 MHz
– 55 –
– 57 –
– 56 –
ZS-M50
Note:
• All capacitors are in 
µ
F unless otherwise noted.  pF: 
µµ
F
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.
•
A
: B+ Line.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
E
: MD PLAY
q
: MD REC
J
: CD
6-7. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) –  
r
 Refer to page 89 for IC Block Diagrams.
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