Sony ICD-MS525 - Diagrams and Schematics

12
ICD-MS525
SECTION 4
DIAGRAMS
Note on Schematic Diagrams:
• 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.
•
f
: internal component.
• C : panel designation.
• A : B+ Line.
•Power voltage is dc 3V and fed with regulated dc power
supply from battery terminal.
•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : REC
[]: PB
∗
: Impossible to measure
•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 : PB
L : REC
* Replacement of IC6201, IC7102 used in this set requires
a special tool.
• The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
from that of conventional IC.
Note on Printed Wiring Boards:
• Y : parts extracted from the conductor side.
• b : Pattern from the side which enables seeing.
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.
* Replacement of IC6201, IC7102 used in this set requires
a special tool.
• Lead layouts
• WAVEFORMS
surface
Lead layout of
conventional IC
CSP (chip size package)
1 IC7101 wd (SCK1)
2 IC7101 wl (SIPCLK)
3 IC7101 es
(DSPSYSCK)
4 IC7101 ef (FSCLK)
5 IC7101 ej (MSCLK)
6 IC7101 yd (CF2)
2 V/DIV, 4 µs/DIV
2 V/DIV, 10 µs/DIV
2 V/DIV, 40 ns/DIV2 V/DIV, 4 µs/DIV
2 V/DIV, 200 ns/DIV
1 V/DIV, 40 ns/DIV
31 µ s
5.7
µ s
567 ns
3.0 Vp-p
3.0 Vp-p
3.9 Vp-p
70 ns
3.1 Vp-p
3.9 Vp-p
71 ns
5.1 µ s
3.1 Vp-p