Sony DHC-MD777 / HMC-MD777 Service Manual ▷ View online
– 65 –
– 66 –
• Waveforms
– BD (CD) Board –
1
IC103
!§
(RF O) (CD Play Mode)
Approx.
1.2 Vp-p
1.2 Vp-p
2
IC101
$¡
(TE) (CD Play Mode)
Approx.
180 mVp-p
180 mVp-p
3
IC101
#ª
(FE) (CD Play Mode)
Approx.
280 mVp-p
280 mVp-p
4
IC101
!¶
(XPCK)
5 Vp-p
230 ns
5
IC101
^§
(XTAI)
3 Vp-p
16.9344 MHz
6
IC101
!∞
(WFCK)
5 Vp-p
138
µ
s
1
IC101
#•
(RF) (MD Play Mode)
400 mVp-p
2
IC152
#™
(CAPA–) (MD Play Mode)
– BD (MD) Board –
4 Vp-p
2.5
µ
s
3
IC152
#¡
(CAPA+) (MD Play Mode)
4.1 Vp-p
2.5
µ
s
4
IC121
@ª
(FS256)
4 Vp-p
90 ns
5
IC121
@•
(XBCK)
4 Vp-p
350 ns
6
IC121
@¶
(LRCK)
4 Vp-p
23
µ
s
7
IC121
!§
(OSCI)
1.9 Vp-p
22.5792 MHz
8
IC316
!∞
(XIN)
2.4 Vp-p
10 MHz
1
IC300
#•
(X2)
– MICROCOMPUTER Board –
4.1 Vp-p
12.5 MHz
1
IC601
@¡
(XIN)
– CD DISPLAY Board –
880 mVp-p
222 ns
2
IC601
@º
(XOUT)
4.8 Vp-p
218 ns
1
IC801
%•
(OSCO)
– MD DISPLAY Board –
1.6 Vp-p
572 ns
2
IC801
%ª
(OSC1)
5 Vp-p
436 ns
HMC-MD777
– 67 –
– 68 –
6-13. PRINTED WIRING BOARDS – MD MOTOR/SENSOR Section –
•
See page 49 for Circuit Boards Location.
(Page 64)
(Page 68)
(Page 63)
(Page 63)
(Page 63)
(Page 67)
HMC-MD777
– 69 –
– 70 –
6-14. SCHEMATIC DIAGRAM – MD MOTOR/SENSOR Section –
•
See page 103 for IC Block Diagram.
(Page 61)
(Page 62)
(Page 62)
(Page 62)
HMC-MD777
– 71 –
– 72 –
6-15. PRINTED WIRING BOARD – MICROCOMPUTER Section –
•
See page 49 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
D222
D-3
D223
D-3
D301
D-3
D302
D-3
D303
D-3
D304
D-3
D305
D-2
D307
D-2
D309
D-3
D310
D-3
D341
C-3
IC300
C-2
IC301
E-2
IC302
D-1
IC304
B-2
Q300
E-2
Q301
D-2
Q341
B-3
MICROCOMPUTER BOARD
(SIDE A)
11
11
MICROCOMPUTER BOARD
(SIDE B)
11
11
(Page 84)
(Page 79)
(Page 79)
(Page 56)
(Page 56)
(Page 80)
(Page 52)
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