Yamaha RX-V1900, Руководство по обслуживанию

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IC255
IC224
IC223
CB204 W2001 CB203
IC222
IC219
JK203 JK201
JK202
IC219 IC219
IC218 IC218 IC218 IC218 IC218 IC218
IC221
IC219
IC218
W2002
IC211 IC213 IC215
IC220 IC220
A
1 2 3 4 5 6 7 8 9
10
BCD
E
F
G
H
I
J
K
L
MN
RX-V1
90
0/HTR-6290/DSP-AX1
90
0
13
4
A
-VIDEO 2/2
0
5.0
0 0 0 0
0
4.9
0 0 0
1.6
0
4.6
4.6
5.0
5.0 4.9 4.9 4.6
0 0
5.0
3.6 3.6
4.9 4.9 4.9 0.1 0.1 4.9
2.5
2.5
2.5
2.5
2.5
2.5
0
0
0
5.0
5.0
0
0
0
0
0 0 0 0 0
0
0
4.9
4.3
4.3 1.7
-0.4
-0.4
0.3
0.9
0
0
-0.6
0
0.9
0.9
0
0
2.4
2.5 4.9 2.4 2.5
4.9
0.1
5.0
1.7
5.0
5.0
0.5
-0.2
1.0
1.7
0
0.9 0.5 2.0
0 0
5.0 5.0 4.9 5.0
0
1.6
-0.6
0.5
-1.0
5.0
0.9
0 0
0 0 0 0
5.0
-4.8
0
5.0
4.9 0.1 0.1
5.0
0 0 0 0
4.9 0.1 0.1 9.0 9.0
9.0 0.2 0.2
0.1 0.1 4.9 5.0 5.0 5.0
0 0 0 0
0.2 0.2
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0
-4.8 -4.8 -4.8
0 0
0
-4.7
0.1
3.6
0 0
-0.6
0
0 0
3.1
3.6 3.6
3.1
3.6
0
0 0 0 0
-4.7
-4.7
4.9
-0.6
5.0
-4.8
0 0
0
00
5.0
0
0
4.9
0
0
-0.6
0 0
3.6
0
3.6
3.6
0 0
3.6
3.6 3.6
0 0
0.7
0.7
5.0
0.7 0.5
0.5 4.9 4.9 4.9
0
0
0.5 0.1
0
0 -4.8
0.5
0 0 0
4.9 3.1
3.6 3.6 3.6
-4.7
4.9
0
-4.7
-4.7 4.9
A-2
4.7K
INPUT SELECT
OR
SIGNAL DETECT
OSD IC
to A-VIDEO 1/2 to A-VIDEO 1/2
VIDEO
A L H
H
L Y
IC21
8
: LA73050-TLM-E
Analog dual operational amplifier
35
N.C.
33
VOUT1
31
VOUT2
30
N.C.
29
VOUT3
32
GND
36
N.C.
34
+VCC1
2
N.C.
4
DCCNT1
6
VIN2
7
MUTE1
8
VIN3
5
GND
1
N.C.
3
VIN1
27
-VCC2
25
+VCC2
23
GND
22
VOUT5
21
N.C.
24
VOUT4
28
-VCC1
26
N.C.
10
N.C.
12
VIN4
14
GND
15
VIN5
16
MUTE2
13
DCCNT2
9
N.C.
11
N.C.
19
-VCC3
20
VOUT6
18
-VCC4
17
VIN6
DR
6dB
+Vcc
DR
6dB
DR
6dB
DR
6dB
+Vcc
DR
6dB
DR
6dB
IC21
9
: LA7106M-TLM-E
Analog dual operational amplifier
15
VOUT1
13
VOUT2
11
VOUT3
10
MUTE2
9
-VCC2
12
DR CTL
16
+VCC
14
GND
2
NFB1
4
VIN2+
6
-VCC1
7
VIN3+
8
NFB3
5
NFB2
1
VIN1+
3
MUTE1
DR
6dB
DR
6dB
DR
6dB
IC221,
224
: MM74HC4053SJX
T
riple 2-channel analog multiplexer
16
11 10
9
7
VEE
8
GND
C B A
VCC
5
CX
CY
1
BY
32
BX
IN/OUT
13 AY
12 AX
6
INH
Logic Le
vel
Conv
ersion
Binar
y to
1 of 2
Decoders
with
INHIBIT
Logic Le
vel
Conv
ersion
Logic Le
vel
Conv
ersion
Logic Le
vel
Conv
ersion
Binar
y to
1 of 2
Decoders
with
INHIBIT Binar
y to
1 of 2
Decoders
with
INHIBIT
TG TG TG TG TG TG
OUT/IN BX or BY
15
OUT/IN CX or CY
4
OUT/IN AX or A
Y
14
IC21
1,
21
3
: MM74HC4051SJX
8-channel analog multiplexer
16
11 10
9
7
VEE
8
GND
C B A
VCC
4
Y7
1
Y4
Y5
Y6
12 Y3
2
51
5
Y2
CHANNEL IN/OUT
14 Y1
13 Y0
COMMON OUT/IN
6
INH
Logic Le
vel
Conv
ersion
Binar
y
to
1 of 8
Decoder
with
INHIBIT
TG TG TG TG TG TG TG TG
3
IC223
: TC74VHCU04FT
Hex inver
ters
1A 1Y 2Y
VCC 6A
1 2 3 4
11
2A
6Y 5A
12 13 14
3A 3Y
5Y 4A
5 6 7
4Y
8
9
10
GND
IC220
: TK15420M
Video amplifier
–
+
1 2 3 4
5
–+
6 7 8
OUT A
–IN A +IN A
VEE
VCC OUT B –IN B +IN B
IC21
5
: CD4051BNSR
Single 8-channel multiplexer
CD4051B
11 10 9 6
A
†
B
†
C
†
INH
†
13
4
2
5
1
12
15
14
TG TG TG TG TG TG TG TG
3
COMMON
OUT/IN
0
1
2
3
4
5
6
7
BINAR
Y
TO
1 OF 8
DECODER
WITH
INHIBIT
LOGIC LEVEL
CONVERSION
8
7
V
SS
V
EE
16
V
DD
CHANNEL IN/OUT
†
All inputs ar
e pr
otected by standar
d CMOS pr
otection network.
IC222
: LC709004A-TLM-E
I/O-expander for micr
ocontr
oller
Control logic
por
t 0 I/O buf
fe
r
Serial/parallel conv
er
ter/shift r
egister
I/O contr
ol/output r
egister
DIN
VDD DOUT VSS
CLK#
CS#
RES#
P00
P07
2
14 15 19
3 4
21
24
17
por
t 1 I/O buf
fe
r
P10
P17
15
8
POINT
A-2 XL202 (Pin 3 of IC225)
Serial
8-bits latch
command decoder
Horizontal character size register Horizontal size counter
+
parallel conver
ter
IC225
: LC74782JM-8A16-TLMC
The on-scr
een display contr
oller LSI
RST CTRL3 CTRL2 SEP
IN
SYN
IN
CV
IN
CV
OUT
SEP
OUT
SEPC VDD1 VDD1 NC
1 2 3 4
24 23 22 21
Xtal
IN
Xtal
OUT
CTAL1
BLANK
OSCIN
CHARA
SCLK
SIN
VDD2
CS
OSC
OUT
VSS1
5 6 7 8 9 10 11 12
20 19 18 17 16 15 14 13
V
e
rtical
character size register V
e
rtical
size counter
Horizontal display position register
Horizontal character size register
Horizontal dot counter
31 inking 3nd inversion contr
o
l
re
gister
31 inking 3nd inversion contr
ol
register 31 inking 3nd inversion contr
ol
register
Character contr
ol
counter
Timing generator
Line contr
ol
counter
31 inking 3nd inversion contr
o
l
register V
e
rtical
display position register V
e
rtical
dot counter
Horizontal character size register
Horizontal character size register Horizontal character size register
Display contr
o
l
register
RAM write addr
ess
counter
Display RAM
Decoder
Decoder
Font RAM Shift register
Character output contr
ol
Backgr
ound contr
ol
Video output contr
ol
Synchr
onization
signal generator
13
15
5
2
4
21
22 20 19 18 17
3
7 6 12 24 23 10 11 9 1 8
to OPERA
TION (3)_CB807
Page 130
F4
to FUNCTION (1)_CB410
Page 126
H8
to POWER (3)_CB23
Page 132
H5
to D-VIDEO_CB185
Page 139
L4