MZ-NH1

•Note For Printed Wiring Boards and Schematic DiagramsNote on Printed Wiring Board:

•X : parts extracted from the component side.

•Y : parts extracted from the conductor side.

•f : internal component.

• : 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.

•Main board is multi-layer printed board.

However, the patterns of intermediate-layer have not been in- cluded in this diagrams.

•Lead Layouts

surface

Lead layout of conventional IC

CSP (chip size package)

Note on Schematic Diagram:

•All capacitors are in ∝F 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 specified.

•f : internal component.

•C : panel designation.

Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety.

Replace only with part number specified.

•A : B+ Line.

•Total current is measured with MD installed.

•Power voltage is dc 6 V and fed with regulated dc power supply from CL451 (DC IN 6V) and CL460 (VBUS GND).

•Voltages and waveforms are dc with respect to ground

under no-signal conditions. no mark : PLAYBACK

(

) : PLAYBACK (servo on)

[

] : PLAYBACK (servo stop)

∗: 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.

E : PLAYBACK

j : REC

J : OPTICAL IN

F : LINE IN

d : USB input from PC

G : USB output to PC

N : MIC IN

•Abbreviation

E18 : 100V - 240V AC area in E model

JE : Tourist model

•Waveforms

1

IC701 1 (VI1), 2 (WI1),

7

IC501 wh (CLK) (Servo on)qd IC801 <czz (OSCO)

 

th (UI1) (Servo on)

 

 

 

 

2.2 Vp-p

 

3 Vp-p

2.7 Vp-p

 

 

 

 

 

7.6 ms

 

88 ns

44 ns

 

 

 

 

 

1 V/DIV, 5 ms/DIV

 

1 V/DIV, 50 ns/DIV

1 V/DIV, 20 ns/DIV

2

IC701 tg (PWM1) (Servo on)

8

IC901 yd (CLK)

 

 

 

2.5 Vp-p

 

2.7 Vp-p

 

 

 

5.7 ∝s

 

11.3 ∝s

 

1 V/DIV, 5 ∝s/DIV

1 V/DIV, 5 ∝s/DIV

 

 

 

 

 

 

 

 

3 IC501 1 (IX) (Servo on)9 IC301 8 (BCLK)

 

 

 

 

 

 

 

 

2.6 Vp-p

190 mVp-p

354 ns

 

50 mV/DIV, 200 ns/DIV

1 V/DIV, 200 ns/DIV

4 501 8 (RFO) (Servo on)q; IC301 9 (MCLK)

2.9 Vp-p

1.2 Vp-p

88 ns

 

500 mV/DIV, 200 ns/DIV

1 V/DIV, 50 ns/DIV

5 IC501 ra (FE) (Servo on)qa IC301 q; (LRCK)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.6 Vp-p

Approx.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60 mVp-p

 

22.8 ∝s

 

 

 

 

 

20 mV/DIV, 1 ∝s/DIV

1 V/DIV, 10 ∝s/DIV

 

 

 

 

 

 

 

 

 

 

 

 

 

6 IC501 rs (TE) (Servo on)qs IC871 8 (OSCOUT)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Approx.

 

 

960 mVp-p

 

 

 

350 mVp-p

 

30.8 ∝s

 

 

 

 

100 mV/DIV, 1 ∝s/DIV

500 mV/DIV, 50

∝s/DIV

MZ-NH1

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