Sony PMC-MD55 - Md Boombox, Руководство по обслуживанию

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1 to 1.4 Vp-p
800 mVp-p
22.4 ns
Approx.
440 mVp-p
Approx.
450 mVp-
2.5 Vp-p
30.5
µ
s
2 Vp-p
125 ns
2 Vp-p
29.5 ns
240 ns
4.3 Vp-p
470 ns
4.3 Vp-p
4.1 Vp-p
22.7
µ
s
Approx.
120 mVp-p
Approx.
180 mVp-p
4.2 Vp-p
44.3 ns
3.7 Vp-p
22.7
µ
s
3.4 Vp-p
354 ns
1.9 Vp-p
30.5
µ
s
2 Vp-p
83.3 ns
4.4 Vp-p
5.7
µ
s
4.8 Vp-p
88.6 ns
4.6 Vp-p
354 ns
4.3 Vp-p
22.7
µ
s
3.4 Vp-p
22 ns
1.5 Vp-p
13.3
µ
s
– 99 – – 100 –
• Waveforms
– TU BOARD –
1
IC1
0
(QUAD)
50 mV/DIV, 50 ns/DIV
2
IC2
!ª
(X IN)
500 mV/DIV, 5 µs/DIV
2
IC101
4
(A) (MD Play Mode)
200 mV/DIV, 500 ns/DIV
3
IC101
8
,
9
(E, F) (MD Play Mode)
200 mV/DIV, 500 ns/DIV
7
IC121
@ª
(FS256) (MD Play Mode)
1 V/DIV, 50 ns/DIV
8
IC121
(º
(FS4) (MD Play Mode)
1 V/DIV, 2 µs/DIV
– BD BOARD –
1
IC101
1
,
2
(I, J) (MD Play Mode)
200 mV/DIV, 500 ns/DIV
4
IC121
!§
(OSCI)
1 V/DIV, 10 ns/DIV
5
IC121
@¶
(LRCK) (MD Play Mode)
1 V/DIV, 10 µs/DIV
6
C121
@•
(XBCK) (MD Play Mode)
1 V/DIV, 100 ns/DIV
5
IC702
$£
(BCK) (CD Play Mode)
1 V/DIV, 200 ns/DIV
6
IC702
$•
(XPCK) (CD Play Mode)
2 V/DIV, 100 ns/DIV
7
IC702
&º
(XTAI)
500 mV/DIV, 10 ns/DIV
– DG BOARD –
1
IC601
@•
(XIN)
1 V/DIV, 50 ns/DIV
2
IC601
@∞
(XIN-T)
500 mV/DIV, 10 µs/DIV
3
IC603
!¡
(BCK) (MD Play Mode)
1 V/DIV, 100 ns/DIV
4
IC603
0
(LRCK) (MD Play Mode)
1 V/DIV, 10 µs/DIV
5
IC603
9
(SYSCK)
1 V/DIV, 20 ns/DIV
6
IC605
6
200 mV/DIV, 10 ns/DIV
– MAIN BOARD (CD Section) –
1
IC701
#¡
(RF O) (CD Play Mode)
500 mV/DIV, 500 ns/DIV
2
IC701
$¡
(TEO) (CD Play Mode)
50 mV/DIV, 1 µs/DIV
3
IC701
$•
(FEO) (CD Play Mode)
50 mV/DIV, 1 µs/DIV
4 IC702 #ª (LRCK) (CD Play Mode)
1 V/DIV, 10 µs/DIV
– MAIN BOARD
(SYSTEM CONTROL Section) –
1
IC405
$™
(XTAL)
1 V/DIV, 50 ns/DIV
2
IC405
*¶
(TX)
1 V/DIV, 20 µs/DIV
140 mVp-p
90 ns
570 mVp-p
2.1 Vp-p
231 ns
3 IC406 !£ (XI) (AEP, UK)
1 V/DIV, 100 ns/DIV