Yamaha RX-V1800, Service Manual

Page: 128 / 181

W9
IC9
IC5
IC10
IC6
IC11
IC4
IC12
W3B W3A
W8B
IC7
IC8
W8A
W7B
CB15
W7A
CB11
CB12
W5A
IC13
IC14 W5B
CB20
CB19
CB18
CB17
CB16
CB23
W40
CB21
CB7
CB9 CB10
CB8 W2B W2A
W1
IC3
IC1
IC2
CB4
CB5
CB1 CB2
CB6
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-V1800/HTR-6190/DSP-AX1800
128
★
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.
POWER
-0.1
AC6.8
AC16.8
AC22.0
AC14.4
05
.0
5.0
4.2 0
0.8
3.6
19.0 19.0
18.6
6.1
6.1
6.1 0
0.8
3.6
0
18.6
0
0
3.6
5.0
0
-19.6
18.2
18.2
18.2
0
18.2 9.0
17.5
18.2
0
4.9
5.1
5.1
-9.3
-9.3
-9.3 -4.9
0
-10.4
6.0
0
0
0
1.4
5.1
0
19.3
5.1
5.1
4.9
0
0
8.7
0.1
0.8
8.7
0.1
0
0
0
8.7
8.7
3.1
AC5.7
3.6
0
1.0 (2.9)
(0)
5.1
8.7
5.8
5.4
4.9
4.9 0.2
0.2
(0.9)
(0.9)
(7.3)
(3.5)
(3.5) (7.3)
(3.6)
(0) (3.6)
(0)
(0)
(2.9) (0)
(0)
(2.9)
(0)
(~)
~
~
(~)
(0)
(7.3)
0
(0)
(0)
(3.9)
(3.9)
0
0
1.0
0
0
5.1 1.0
0
4.9
0
-19.6
AC7.7
AC30.3
0
0 0
0 0
4.3 4.6
0
19.3
9.9
19.3
0
0
12.0
19.3
19.3
-13.4
-13.3
-12.1 -19.6
-19.6
13.2
5.0
6.3
6.3
6.3
6.3
13.2
-19.6
13.1
5.6
5.1
5.1
4.4
5.1
4.4
4.9
3.6
3.6
3.6
2.4
6.0
-8.7
0
18.2
-19.6
5.0
4.9
0
5.2 1.3
9.8
5.1
9.9
0
5.6
0
1.8
5.0
0
2.8 1.3
-19.6
0
0
0
0
0
5.0
19.3
19.3
19.3
19.3
-19.6
5.0
5.0
17.8
0.1
17.8
17.8
0.1
0.1
0
0.1
0
0
0
19.3
19.1
19.3
19.3
19.1
19.1
3.6
0
0
0.1
-0.1 -10.6
18.6
0
9.4 9.4
0.1
-13.0
10.2
19.0
POWER (1)
POWER (3)
POWER (6)
POWER (4)
POWER (5)
POWER (2)
Primary side ground
CTL
1 2
3 4
5
Vcc GND
TSD OCP
Vref -
+
Driver
VOUT C
IC9, 10, 12 : BA00JC5WT-V5
Voltage regulator
Q1
D1
6.2V
D3
6.2V
Q2
D2
6.2V
Q6
Q7
Q9
Q13
Q15 Q20
Q21
Q11
Q10
Q16
Q12
Q17
Q18
Q19
R6
7K
R1
750
V
IN
V
OUT
R2
1K R3
6K
R4
20K
R8
20K
R9
20K
R13
5K
R16
0.05
R21
150
R5
15K
R10
3K
R11
10K
R18
4K R19
5K
R15
2K
R17
5.4K
R12
600
R14
15K R20
20K
R7
1.4K
Q8
Q4
Q5
Q14
20pF
10pF
Q3
IC6 : KIA79M05PI-U
Voltage regulator
-5V
IC5 : KIA7809API-U/P
Voltage regulator
R1
R2
R3
R4 R5
R6
R7
R8
Z1
Q12
Q13
Q18
Q17
Q14
Q19
Q10
Q8
Q16
INPUT
OUTPUT
COMMON (GND)
Q15
Q11-1 Q11
Q2
Q3
Q4
Q5 Q9
Q7
Q1
Q6
R12
R19
R10
R9
R15
R14
R16
R21
R20
R22 R23 R17
R13
R11
R18
C1
1
3
2
IC13, 14 : LM61CIZ
Temperature sensor
–
–
+
+
+
1 2
3
SW
ADJ 4
V
IN
5 SS
GND
PReg
Reset
Oscillator
Comparator
Error amp.
Overcurrent
protection
Thermal
protection
Reference
voltage
Latch & driver
IC7, 8 : SI-8008HFE
Voltage regulator
ON
/
OFF
Soft
Start
IC3 : TC4013BP
Dual D-type flip flop
4 RESET1
1 Q1
6
SET1
5
DATA1
CL
3
CLOCK1
CL
CL
CL
CL
CL
2 Q1
10 RESET2
13 Q2 8 SET2
9
DATA2
7 V
SS
14 VDD
11
CLOCK2
12 Q2
CL
CL
CL
CL
CL
CL
1
2
Anode
Cathode
4
3
Collector
Emitter
IC1, 2 : TLP421
Photo transistor
1
2
3
4 11
12
13
14
5
6
7 8
9
10
Vss SET2
CK2
VDD
Q2
INPUTS OUTPUTS
* : Don't care
: Level change
˙ : No change
RESET
L
H
H
L
L
L
Q2
DATA2
RESET2
SET1
RESET1
CK1
Q1
Q1
DATA1
SET
H
L
H
L
L
L
DATA
*
*
*
L
H
*
CK
*
*
*
Qn + 1
H
L
H
L
H
Qn˙
Qn + 1
L
H
H
H
L
Qn˙
T
o
PO
WER
TRANSFORMER
To POWER TRANSFORMER
To POWER TRANSFORMER
U, C, T, K, A, B, G, E, J models
R, L models
AC IN
T
o
PO
WER
TRANSFORMER
(R, L models)
T
o
PO
WER
TRANSFORMER
to FL (1)_W9001
Page 136 B4
to FUNCTION (1)_CB407
Page 122 F9
to MAIN (4)_W272
Page 127 B1
to D-VIDEO_CB188
Page 135 L7
to A-VIDEO_W2001
Page 130 J3
to DSP_W5301
Page 120 I1
to DSP_W5302
Page 120 K1
to FUNCTION (1)_CB409
Page 122 H9
to MAIN (1)_W271
Page 127 M9
to FUNCTION (1)_CB406
Page 122 D9
to FUNCTION (2)_W3004
Page 124 M1