Yamaha RX-Z9, Service Manual

Page: 142 / 190

A B C D E F G H
1
2
3
4
5
6
I J K L M N O
7
8
9
10
142
RX-Z9/DSP-Z9
LPF/BUFFER
COMPONENT
VIDEO DECODER
VIDEO DECODER
16M SDRAM
VIDEO CPU
32M ROM
PLD2
REGULATOR
64M SDRAM
I/P CONVERTER
ENHANCER
PLD3
VIDEO
ENCODER
PLD1
GUI/OSD
PROCESSOR
32M ROM
FRQUENCY
COUNTER
10
11
12
13
9.2
7.6
0
0
0
2.2 2.2
2.2 2.2 0
0
0
3.7
-4.8
4.8
0
0
0
0
0
0 0
3.4 3.4
0
3.4
3.7
0
3.7
2.9
2.9 3.7
3.7
0
3.7
0
3.7
3.7
0 3.4
0 0
0 0
3.4
3.4 3.4
0 0
3.4 3.4
3.4
0
0
0 0
0
3.4 3.4
4.8 4.8 2.9 0
0
3.0 4.5 4.4 3.7 0
0
3.7
4.8
4.8
3.7 4.5
4.5 4.4 3.7 0
0
3.7
3.7
4.5
3.8 3.7
3.7
2.3 0
0
2.3
2.3 3.8
3.0
3.7
3.7
3.7 3.7
0
0
3.4
0 0
3.4 3.4
2.9
2.3
0
0
3.7
0
3.7
0
3.7
0
3.7
0
2.9
2.9
0
0
0
3.7
9.0
9.0
5.4
5.4
0
0
3.7
3.7
0
4.8
4.8
4.8 -4.8 3.7 4.8
-4.8
3.7
2.3
0
9.0
0 3.7
0
4.8
9.0
-4.8
0 0.1 0.1 3.7
0.5 0.5
0.5
~
7.6 7.6
7.6
7.6
1.2
3.7
3.7
3.7
3.7
3.7
0
9.0 9.0
9.0
TO VIDEO TOP CB27 or CB36
Page 141 J-3 or N-3
TO VIDEO TOP CB13
Page 141 E-5 X: NOT USED
EUROPRE
TO DSP1 (1) CB8
Page 131 L-5
T
O
PO
WER (1)
W906
P
age 143 I-5
T
O
VIDEO T
OP
CB21
P
age 140 J-3
■
SCHEMATIC DIAGRAM (VIDEO BOTTOM)
* All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
Point !0 (Pin 82 of IC22)
V : 2V/div, H : 20nsec/div
DC, 1 : 1 probe
0V
Point !1 (Pin 9 of IC23)
V : 500mV/div, H : 1
µ
sec/div
DC, 1 : 1 probe
0V
Point !2 (Pin 20 of IC33)
V : 1V/div, H : 100nsec/div
DC, 1 : 1 probe
0V
Point !3 (Pin 191 of IC40)
V : 2V/div, H : 40nsec/div
DC, 1 : 1 probe
0V
IC16 : PQ018EZ01ZP
IC17 : PQ025EZ01ZP
IC18, 19 : PQ033EZ01ZP
Rgulator
DC INPUT (VIN) DC OUTPUT (VO)
ON/OFF CONTROL (VC)
GND
2
5
3 1
I C
IC24 : AN13300A
V i d e o S i g n a l I n p u t - O u t p u t
Interface for DSP
LPF
LPF
LPF
GCA
GCA
GCA
SW
SW
CLAMP
NC
CLAMP
DC SHIFTER
DI-CLAMP
LPF
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18
19
20
21
22
EE-Y
IN
EE/VV
SW
VV-Y
IN
PRE-Y
ADJ
VCC1 EE-C
IN
GND VV-C
IN
PRE-C
ADJ
VCC2 PRE-C
OUT
CP
CLAMP
DC
PRE-Y
OUT
N.C.
(Capacitor)
POST-Y
IN
POST-Y
ADJ
POST-C
IN GND
POST-C
OUT
N.C.
CONT
POST-Y
OUT
IC15 : TC74HC4052AF
Analog Multiplexers/Demultiplexers
16
VDD
6
INHIBIT
10 A
9 B
8 VSS
7 VEE
12
X0
14
X1
15
X2
11
X3
1
Y0
5
Y1
2
Y2
4
Y3
LEVEL
CONVERTER
BINARY TO 1-OF-4
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
SW
SW
13
X
3
Y
INHIBIT
0
0
0
0
1
B
0
0
1
1
X A
0
1
0
1
X
0x, 0y
1x, 1y
2x, 2y
3x, 3y
NONE
IC4, 6 : TC74HC4051AFEL
IC5, 7 : CD4051BNSR
Analog Multiplexers/Demultiplexers
LEVEL
CONVERTER
BINARY TO 1-OF-8
DECODER WITH INHIBIT
11
10
9
8
7
6 16
13
SW
SW
SW
SW
SW
SW
SW
SW
14
15
12
1
5
2
4
3
INHIBIT VDD
X
A
B
C
VSS
VEE
X0
X1
X2
X3
X4
X5
X6
X7
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
C
0
0
0
0
1
1
1
1
X
B
0
0
1
1
0
0
1
1
X
A
0
1
0
1
0
1
0
1
X
“ON” CHANNEL (S)
0
1
2
3
4
5
6
7
NONE
IC9, 10 : TC74HC4053AF (EL)
Analog Multiplexers/Demultiplexers
16
VDD
LOGIC LEVEL
CONVER
TER
12
OX
7
VEE
6 INH
OUT C IN
13
IX
OUT C IN
2 OY OUT C IN
1 IY OUT C IN
5 OZ OUT C IN
3 IZ OUT C IN
4 Z-COMMON
15
14 X-COMMON
Y-COMMON
9 C
10 B
11 A
8
VSS
INHIBIT
(Pin 6)
L
L
L
L
L
L
L
L
H
CONTROL INPUTS “ON” CHANNEL
0X (Pin 12), 0Y (Pin 2), 0Z (Pin 5)
1X (Pin 13), 1Y (Pin 1), 1Z (Pin 3)
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NOTE
C
(Pin 9)
L
L
L
L
H
H
H
H
*
B
(Pin 10)
L
L
H
H
L
L
H
H
*
A
(Pin 11)
L
H
L
H
L
H
L
H
*
* Don’t Care
1A
1Y
2Y
VDD
6A
1
2
3
4 11
2A 6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7 VSS 4Y 8
9
10
IC3 : TC74HCU04AFEL
Hex Inverters IC1, 2 : NJM2904M
IC8, 115 : OPA2653U
Dual OP-Amp
– +
OUT1
–IN1
–VCC
+VCC
OUT2
1
2
3
4 5
+IN1 –IN2
+IN2
– +
6
7
8
IC34–39 : SN74LVC16244ADGGR
3-State Buffer Driver
1OE
1A1
1A2
1A3
1A4
2OE
1Y1
GND
VCC
1Y2
1Y3
1Y4
1
47
46
44
43
2
7, 18, 31, 42
4, 10, 15, 21, 28, 34, 39, 45
3
5
6
2A1
2A2
2A3
2A4
2Y1
2Y2
2Y3
2Y4
41
48
40
38
37
8
9
11
12
3OE
3A1
3A2
3A3
3A4
3Y1
3Y2
3Y3
3Y4
36
25
35
33
32
13
14
16
17
4OE
4A1
4A2
4A3
4A4
4Y1
4Y2
4Y3
4Y4
30
24
29
27
26
19
20
22
23
OE
L
L
H
A
H
L
X
INPUTS OUTPUT
Y
H
L
Z
IC11–14 : LA7104M
6dB Amp & Driver
6dB DR
6dB DR
6dB DR
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VIN1+
NFB1
MUTE1
VIN2+
NFB2
–VCC1
VIN3+
NFB3
+VCC
VOUT1
GND
VOUT2
DR CTL
VOUT3
MUTE2
–VCC2