Sony hcd-sd1 Waveforms BD 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.

•2 : nonflammable resistor.

•1 : fusible resistor.

•C : panel designation.

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

Replace only with part number specified.

•S : B+ Line.

•T : B– Line.

•H : adjustment for repair.

•Voltages and waveforms are dc with respect to ground in service mode.

•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.

F : FM

E : PB (MD)

m : PB (TAPE)

n : REC

J : CD

c : digital out

•Abbreviation

SP	: Singapore model.
HK	: Hong Kong model.

For printed wiring boards.

Note:

•X : parts extracted from the component side

•p : parts mounted on the conductor side.

•® : Through hole.

•¢ : internal component.

•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	BC E
	B E				These are omitted

WAVEFORMS

– BD SECTION –

1

1.3 ± 0.3 Vp-p

IC101 #¡ (RFO) (PLAY Mode)

500 mV/DIV, 500 ns/DIV

2

Approx.

100 mVp-p

IC101 $¢ (TEI) (PLAY Mode)

50 mV/DIV, 1 ∝s/DIV

3

Approx.

150 mVp-p

IC101 2 (FEI) (PLAY Mode)

50 mV/DIV, 1 ∝s/DIV

4

2.6 Vp-p

7.6 ∝s

IC103 3 (MDP) (PLAY Mode)

5

5.1 Vp-p

136 ∝s

IC103 @• (RFCK)

6

5.3 Vp-p

14 ns

IC103 @∞ (XPCK)

7

5 Vp-p

474 ns

IC103 @™ (BCLK)

8

5.1 Vp-p

22.8 ∝s

IC103 @º (LRCK)

9

4.6 Vp-p

16.9344 MHz

IC104 6 (XTO)

HCD-SD1

– MAIN SECTION –

1

4.3Vp-p

5 MHz

IC701 !¡ (XI)

2

2.6 Vp-p

32 kHz

IC701 !¢ (XI)

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