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MZ-B10
3636
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.
•%: indicates tolerance.
• C : panel designation.
• A : B+ Line.
•Total current is measured with MD installed.
•Power voltage is dc 3 V and fed with regulated dc power
supply from DC IN 3 V jack (J601).
•Voltages and waveforms are dc with respect to ground in
playback mode.
no mark : PLAYBACK
(): REC
∗
: 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.
J : PLAYBACK
c : DIGITAL IN
F : ANALOG IN
f : RECORD
• The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
form that of conventional IC.
6-2. Note For Printed Wiring Board And Schematic Diagrams
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• : 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
(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.
• MAIN board is four-layer printed board.
However, the patterns of layers 2 and 3 have not been
included in this diagrams.
• Lead Layouts
surfac
e
Lead layout of conventional IC CSP (chip size package)
•Waveforms
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
* Replacement of IC501,IC801 on MAIN board requires a
special tool.
* Replacement of IC501,IC801 on MAIN board requires a
special tool.
5
IC801 2 (OSCO)
(at the point of R805)
44.3ns
2
IC501 rd (TE)(SL501)
500mV/DIV, 1ms/DIV
6
IC901 yd (CLK)
3
IC501 rs (FE)(SL502)
1
IC501 9 (RFO)(TP1517)
500mV/DIV, 200ns/DIV
4
IC601 4 (CLK)
1V/DIV, 2µs/DIV
5.67µs
7
IC301 9 (MCLK)
1.5Vp-p
730mVp-p
1.1Vp-p
2.5Vp-p
2.7Vp-p
1V/DIV, 40ns/DIV
88.6ns
8
IC301 8 (BCLK)
(REC mode)
1V/DIV, 100ns/DIV
354ns
9
IC301 q; (LRCK)
(REC mode)
22.7µs
2.6Vp-p
2.4Vp-p
1V/DIV, 10µs/DIV
1V/DIV, 2µs/DIV
5.67µs
2.5Vp-p
200mV/DIV, 1ms/DIV
270mVp-p
500mV/DIV, 20ns/DIV