MZ-E501

2-4. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) – • See page 11, 12 for IC Pin Function Description.

rWAVEFORMS

1 IC501 1 TE

 

 

 

2 IC501 ed (RF OUT)

 

3 IC501 rs (FE)

 

 

 

4 X601 (OSCO)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Approx.

 

Approx.

2.7 V

12 mVp-p

 

10 mVp-p

Approx.

22.1 ns

 

 

1.2 Vp-p

 

 

Note on Schematic Diagram

All capacitors are in F unless otherwise noted. pF: ∝∝ F 50 WV or less are not indicated except for electrolytics and tantalums.

All resistors are in and 1/4 W or less unless otherwise specified.

f : internal component.

: B+ Line.

Power voltage is dc 1.5V and fed with regulated dc power supply from battery terminal.

Voltages and waveforms are dc with respect to ground under no-signal conditions.

no mark : PLAY

Voltages are taken with a VOM (Input imped- ance 10 M).

Voltage variations may be noted due to normal production tolerances.

Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.

Circled numbers refer to waveforms.

Signal path.

F : Audio (Analog)

J : Audio (Digital)

*Replacement of IC601 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.

66

Page 42
Image 42
Sony MX-E501 service manual + Line