Yamaha RX-V3800 - AV Receiver, Service Manual

Page: 44 / 99

W2002
CB210
CB203
JK201
JK202
JK203
W2001
IC217
IC218
IC222
CB204
IC223
IC220
IC215
IC213
IC211
IC220
IC218
IC216
IC214
IC212
IC218
IC218
IC224
IC219
IC218
IC218
IC218
IC226
IC226
IC226
IC226
CB209
IC219
IC219
IC219
IC221
IC227
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V3800/DSP-AX3800
134
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked
s
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
A-VIDEO 2/2
A-2
0.1 0
0.1 -4.9
0
0
0
0
0
0
4.9
0
0
0
0
4.9
0.1 0
0.1 -4.9
0
0
0
0
0
0
4.9
0
0
0
0
0
4.9
0
0
0
0
0
4.9
4.9
4.9
4.9
0
0
0
4.9
3.5
3.5
0.1
0.1
4.9
0.1
0.1
4.9
2.5
5.0
2.5 2.5
2.5 2.5
5.0 0 0 0
0 0
0
0
4.3
4.3
-1.8
-1.1
4.9
0.2
-0.4
0.9
0.9
-0.6
-0.6
0
0.9
0.9
0.7
0 4.9
4.9
4.9
0
4.9
0
0
4.9
0.7
0
1.6
2.3
2.4
0
2.4
2.4
4.9
4.9
4.9
-4.9
-4.2
0
-4.9
4.9
1.0
1.6
-0.2
0
0
0
0.1
0.7
0.7 3.0
0.2
0.7 0.1
0.3
0.7
0.7
0
0
0
0
0.1
0.1
4.9
-0.6
-0.6
0.5
-0.4
0
0 0
2.5
4.9
0
0
0
0
4.9
0.1
0.1
0
4.9
0
0
0
0
4.9
0.1
0.1
0
9.0
0
-0.4
0
0
9.0
0.1
0.1
0
0
0
0
0
-4.9
0
0
0
0.1
0
0
0
-4.9
0
0
0
0.4
0
0.2
0
-4.9
0
0
0 -4.9
0
0.1
0
0
0
0
0
-0.4
-0.4
-0.4
0
4.9
0.3
0
4.9
0.1 0
0.1 -4.9
9.0 0
0 0.2
0 0
-0.4 -0.4
0.4 0.2
9.0
0.1
0.1
0.1
9.0
4.9
4.5
4.9
0
0
0
4.9
-4.8
-4.8
4.9
0
0
9.0
4.9
4.9
0.1
0.1
4.9
0.1
4.9
0.1
4.9
-4.6
0
0
0
0
0
4.9
-0.4 -1.1
0
0
-4.8
-4.9
0.1
0.1
3.5
0
0
0
0
0
-0.4
0
0
0
0
0
0
0
0
0
3.5
3.5
3.5
3.5
3.5
3.0
3.0
4.9
-0.9
0
4.9
0.2
0
0
0
4.9
4.9
4.9
0
0
0
0
0
-4.9
0
4.9
4.9
-4.9
0
-4.8
0
0
0
0
-0.4
3.5
3.5
3.5
0
3.0
0
0.1
4.9
0.1
POINT A-2 Pin 3 of IC224
INPUT SELECTOR
REC/ZONE SELECTOR
SOURCE/REC
SELECTOR
SIGNAL DETECT
OSD IC
to A-VIDEO 1/2
to A-VIDEO 1/2
IC218 : 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
IC219, 226 : 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
IC217, 221 : MM74HC4053SJX
Triple 2-channel analog multiplexer
16
11
10
9
7
VEE
8
GND
C
B
A
VCC
5
CX CY
1
BY
3 2
BX
IN/OUT
13
AY
12
AX
6
INH
Logic
Level
Conversion
Binary to
1 of 2
Decoders
with
INHIBIT
Logic
Level
Conversion
Logic
Level
Conversion
Logic
Level
Conversion
Binary to
1 of 2
Decoders
with
INHIBIT
Binary 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 AY
14
IC211-214 : 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 5 15
Y2
CHANNEL IN/OUT
14
Y1
13
Y0
COMMON
OUT/IN
6
INH
Logic
Level
Conversion
Binary
to
1 of 8
Decoder
with
INHIBIT
TG
TG
TG
TG
TG
TG
TG
TG
3
IC223 : TC74VHCU04FT
Hex inverters
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
IC215, 216 : 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
BINARY
TO
1 OF 8
DECODER
WITH
INHIBIT
LOGIC
LEVEL
CONVERSION
8 7
V
SS
V
EE
16
V DD
CHANNEL IN/OUT
†
All inputs are protected by standard CMOS protection network.
IC222 : LC709004A-TLM-E
I/O-expander for microcontroller
Control logic
port 0 I/O buffer
Serial/parallel converter/shift register
I/O control/output register
DIN
VDD
DOUT
VSS
CLK#
CS#
RES#
P00 P07
2
14
15
19
3
4
21
24 17
port 1 I/O buffer
P10 P17
15 8
Serial 8-bits
latch
command
decoder
Horizontal
character
size
register
Horizontal
size
counter
+
parallel
converter
IC224 : LC74782JM-8A16-TLM
The on-screen display controller 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
Vertical
character
size
register
Vertical
size
counter
Horizontal
display
position
register
Horizontal
character
size
register
Horizontal
dot counter
31 inking
3nd inversion
control
register
31 inking
3nd inversion
control
register
31 inking
3nd inversion
control
register
Character
control
counter
Timing generator
Line
control
counter
31 inking
3nd inversion
control
register
Vertical
display
position
register
Vertical
dot counter
Horizontal
character
size
register
Horizontal
character
size
register
Horizontal
character
size
register
Display
control
register RAM write
address
counter
Display RAM
Decoder
Decoder
Font RAM
Shift
register
Character output
control
Background control
Video output control
Synchronization
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 OPERATION (3)_CB807
Page 130 E4
to FUNCTION (1)_CB410
Page 126 I9
to POWER (3)_CB23
Page 132 H5
to D-VIDEO_CB185
Page 139 L4
to FUNCTION (2)_W3500
Page 129 B9