Sony MDS-SD1 Waveforms, Display Section, For schematic diagrams, For printed wiring boards

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this, the necessary note is printed in each block.)

For schematic diagrams.

Note:

•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.

•¢ : internal component.

•C : panel designation.

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

Replace only with part number specified.

•U : B+ Line.

•V : B– Line.

•H : adjustment for repair.

•no mark : STOP

( ) : Play the test disc (TDYS-1)

<> : REC

∗: Can not be measured.

•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 : PB

q : REC

a : PB (DIGITAL OUT)

r : REC (DIGITAL IN)

•Abbreviation

HK	: Hong Kong model.
SP	: Singapore model.

For printed wiring boards.

Note:

•X : parts extracted from the component side.

•Y : parts extracted from the conductor side.

•p : parts mounted on the conductor side.

•® : Through hole.

•b: 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 the

(Side B) pattern face are indicated.

Parts face side: Parts on the parts face side seen from the

(Side A) parts face are indicated.

•Indication of transistor

C

	Q	These are omitted
B E

BC E

These are omitted

WAVEFORMS

– BD (1/2) SECTION –

1

0.46Vp-p

IC101 1, 2 (I, J) (PLAY mode)

2

0.1Vp-p

IC101 4 (A) (PLAY mode)

3

0.06Vp-p

IC101 8, 9 (E, F) (PLAY mode)

– BD (1/2) SECTION –

4

3.1Vp-p

22.581MHz

IC121 !§ (OSCI)

5

3.2Vp-p

44.1kHz

IC121 @¶ (LRCK)

6

3.8Vp-p

2.822MHz

IC121 @• (XBCK)

7

3.8Vp-p

11.29MHz

IC121 @ª (FS256)

8

3.2Vp-p

176.4kHz

IC121 (º (FS4)

MDS-SD1

– MAIN SECTION –

1

3.2Vp-p

10MHz

IC701 !£ (XOUT)

2

3.8Vp-p

44.1kHz

IC201 !¶ (LRCK1)

3

3.4Vp-p

2.822MHz

IC201 !§ (BCK)

4

3.0Vp-p

22.581MHz

IC201 !™ (SYSCLK)

– DISPLAY SECTION –

1

3.9Vp-p

2.4MHz

IC901 %• (OSCO)

– 37 – – 38 –