MZ-NF610
4040
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.
•f: internal component.
•C: panel designation.
•A: B+ Line.
•Total current is measured with MD installed.
•Power voltage is dc 3 V and fed with regulated dc po wer
supply from DC IN 3 V jack (J951).
•Voltages and w av ef orms are dc with respect to ground in
playback mode.
no mark : PLAYBACK
(): REC
∗: Impossible to measure
•Voltages are tak en 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
N:USB

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 A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side B) 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.
surfac
e
Lead lay out of conventional IC CSP (chip size package)
*Replacement of IC501,IC801 on MAIN board requires a
special tool.
•The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
form that of conventional IC.
*Replacement of IC501,IC801 on MAIN board requires a
special tool.
•Lead Layouts
5IC801 2 (OSCO)
(at the point of R806)
44.3ns
2IC501 rd (TE)(SL501)
500mV/DIV, 1ms/DIV
7IC901 yd (CLK)
6IC801 <z,/ (UOSCO)
(USB mode)
(at the point of R823)
3IC501 rs (FE)(SL502)
1IC501 9 (RFO)(TP1517)
500mV/DIV, 200ns/DIV
4IC601 4 (CLK)
1V/DIV, 2
µ
s/DIV
5.67
µ
s
8IC302 qa (MCLK)
2Vp-p
580mVp-p
1.2Vp-p
2.5Vp-p
2.6Vp-p
1V/DIV, 40ns/DIV
88.6ns
9IC302 0 (BCLK)
(REC mode)
1V/DIV, 100ns/DIV
354ns
0IC302 qs (LRCK)
(REC mode)
22.7
µ
s
2.6Vp-p
2.4Vp-p
1V/DIV, 10
µ
s/DIV
20.8ns 3.2Vp-p
1V/DIV, 2
µ
s/DIV
5.67
µ
s
2.5Vp-p
200mV/DIV, 1ms/DIV
240mVp-p
500mV/DIV, 20ns/DIV
1V/DIV, 10ns/DIV

•Waveforms

✩When IC852 is damaged, replace the MAIN board.
✩When IC852 is damaged, replace the MAIN board.
•Abbreviation
CND : Canadian model
Note:
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.