Fc-86 (D/A Converter) Schematic Diagram - Sony MVC-FD75 Service Manual

MVC-FD75
FC-86 (D/A CONVERTER) SCHEMATIC DIAGRAM • See page 4-9 for FC-86 printed wiring board. • See page 4-43 for waveforms.
1
2 3
FC-86 BOARD (3/8)
A
D/A CONVERTER(RY BLOCK)
-REF.NO.:1,000 SERIES-
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
R:REC MODE
P:PB MODE
B
23
MCK
FC-86 BOARD (1/8)
C
10
FC-86 BOARD (4/8) VREF_PYRA
D
PANEL_Y0
PANEL_Y1
PANEL_Y2
PANEL_Y3
PANEL_Y4
PANEL_Y5
E
PANEL_Y6
6
PANEL_Y7
FC-86 BOARD (2/8)
SYS_H
SYS_V
PANEL_C0
PANEL_C1
PANEL_C2
PANEL_C3
F
XLCDH
G
D_3.2V
REG_GND
PANEL_4.9V
H
REG_GND(FDD_GND)
11
FDD_P_5V
FC-86 BOARD (8/8)
BEEP_15V
PANEL_6.5V
I
PANEL_-15.3V
PANEL_13.2V
REG_GND (UNREG_GND)
BL_UNREG
J
24
FC-86 BOARD (8/8)
A_4.9V
05
D/A CONVERTER
FC-86 (3/8)
4 5 6 7
12
FC-86 BOARD (7/8)
0 1.6 0
36 35 34 33 32 31 30 29 28 27 26 25
R1.1/P1.8 2.1
Y0 VG(R) 24
37 7
R1.1/P0.9 0.2
38 Y1 IOR 23
R1.1/P0.9 3.2
39 Y2 AVDD2 22
R1.1/P0.9 0.5
40 Y3 4 VREFR 21
R1.9/P1.7 0.5
IC601
Y4 IREFR
41 20
R1.1/P0.9 6 0.1
42 Y5 IOG 19
D/A CONVERTER
R1.1/P0.9 3.2
IC601
43 Y6 AVDD1 18
R1.3/P0.9 CXD3121R-T4 0.5
8
44 Y7 VREFG 17
2.9 0.5
45 HD IREFG 16
3.1 2.1
9
46 VD VG(G) 15
2.9 0.1
47 HDO IOB 14
0 0.5
CGR
48 VREFB 13
4
10
5
1 2 3 4 5 6 7 8 9 10 11 12
0
0.5
R1.0/P0.7
R1.1/P0.8
L601
0
(Note)
C601 R601
XX 15k
6.3V
C602
0.1u
Note:Resistor is mounted to the
location where L601 is printed.
4-15
8 9 10
13
FC-86 BOARD (6/8)
Q601
2SC4738F-Y/GR(TPL3)
BUFFER
R611
39k
C607 4.9
1u
1.1
0.5
R610 R612 R613 C609
C605
1k 1k XX
12k
0.1u
Q602
2SC4738F-Y/GR(TPL3)
BUFFER
R624
R616
XX
39k
R605
15k
4.9
C608
1u
1.1
0.5
R617 C610
R615 R618
XX
1k 12k 1k
R606
C606
0.1u 15k
R621
39k
R625
C611
XX 1u
1.1
R622
R620 R623
1k 12k
R626
XX
11 12 13
SIGNAL PATH
14
FC-86 BOARD (5/8) VIDEO SIGNAL
CHROMA
REC
PB
LANC_IN
LANC_OUT
S1_SELECT
READ_D
WRITE_P
WRITE_G
T00
DISK_IN
WRITE_D
DIRECTION
STEP
D_OUT
MOTOR_ON
Q603
D_CHANGE
2SC4738F-Y/GR(TPL3)
BUFFER READY
D_SELECT
4.9 INDEX
0.5
C612
XX
1k
BEEP
KEY_AD2
LI_3V
KEY_AD1
XACS_LED
KEY_AD0
XCHG_LED
ZOOM_SW_AD
XCAM/PB_SW
XPWR_SW
XCS_LCD_D/A
HI_SO
XHI_SCK
4-16
14 15 16
Y Y/CHROMA
CN602 60P
60 LANC_IN
59 LANC_OUT
58 REG_GND
57 REG_GND
56 SIDE1_SELECT
55 READ_DATA
54 WRITE_PROTECT
53 REG_GND
52 N.C
51 WRITE_GATE
50 TRACK_00
49 FDD_GND
48 DISK_IN
47 WRITE_DATA
46 FDD_GND
45 FDD_GND
44 DIRECTION
43 STEP
42 DENSITY_OUT
41 MOTOR_ON
40 DISK_CHANGE
39 FD_READY
38 DRIVE_SELECT
37 INDEX
36 A_4.9V
35 A_4.9V
34 FDD_P_5V
33 FDD_P_5V
PK-59 BOARD (1/5)
32 BEEP
CN603
31 BEEP_15V
THROUGH THE
30 KEY_AD2
FP-35 FLEXIBLE
29 LI_3V (SEE PAGE 4-32)
28 KEY_AD1
27 XACS_LED
26 KEY_AD0
25 XCHG_LED
24 ZOOM_SW
23 A_4.9V
22 XLCDH
21 PANEL_B
20 XCAM/PB_SW
19 PANEL_G
18 XPWR_SW
17 PANEL_R
16 REG_GND
15 REG_GND
14 XCS_PANEL_D/A
13 PANEL_XVD
12 HI_SO
11 PANEL_XHD
10 XHI_SCK
9 PANEL_6.5V
8 PANEL_-15.3V
7 PANEL_3.2V
6 PANEL_13.2V
5 PANEL_4.9V
4 UNREG_GND
3 UNREG_GND
2 BL_UNREG
1 BL_UNREG