Yamaha DSP-AX2 Service Manual Page 61
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DSP-AX2
■ SCHEMATIC DIAGRAM (OPERATION)
* All voltage are measured with a 10MΩ/V DC electric 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.
E-74/J-72
V
O1
2
–Vm
1
3
+Vm
1
4
V
EE
5
+Vm
2
6
–Vm
2
7
V
O2
8
V
CC
9
V
CC
1
1
– +
– +
2
IC803 : µPC4570HA
Dual OP-Amp
IC802 : NJM2068L-D
IC804 : NJM4556AL
Dual OP-Amp
–IN1
2
+IN1
3
–VCC
4
+IN2
5
–IN2
6
OUT2
7
+VCC
8
OUT1
1
–
+
–
+
IC901, 902 : M66004MBFP-200C
FL Display Driver
P1
18
17
DISPLAY
CONTROL
REGISTER
OUTPUT
PORT
(2BIT)
SERIAL
RECEIVE
CIRCUIT
DIGITAL
OUTPUT
CIRCUIT
DISPLAY
CONTROLLER
CLOCK
GENERATOR
P0
XOUT
20
XIN
21
CS
14
SCK
15
SDATA
16
RESET
13
DIG00
12
61
DIG15
DIG12
64
1
DIG11
SEG00
59
23
SEG35
SEG27
31
33
SEG26
SEGMENT
OUTPUT
CIRCUIT
DISPLAY CODE
REGISTER
(8BITx16)
CGROM
(35BITx160)
DECODER
CGRAM
(35BITx16)
DECODER
CODE
SELECT
CODE
WRITE
RAM
WRITE
CORD/
COMMAND
CONTROL
CIRCUIT
IC801 : TC4066BP
Quad Analog Switch/Multiplexer
SW
A
IN/OUT
1
OUT/IN
2
OUT/IN
3
IN/OUT
4
CONT B
5
CONT C
6
VSS
7
14
VDD
13
CONT A
12
CONT D
11
IN/OUT
10
OUT/IN
9
OUT/IN
8
IN/OUT
SW
D
SW
B
SW
C
SIG/A
SIG/B
SIG/D
SIG/C
TONE CONTROL
BASS EXTENSION
PHONES AMP
HP MUTE
FL DRIVER
FL DRIVER
0
0
8.4
-8.4
8.5
0
0
8.5
-8.5
0
-8.4
0
0
-8.4
0
-8.5
0
-8.4
0
0
-8.4
0
8.5
0
0
0
10.9
0
0
0
-10.9
0
0
0
-10.9
0
0
0
10.9
0
0
0
0.7
0.7
0
0
0
9.1
8.4
8.4
0
0
0
-8.4
-9.1
-8.4
4.0
4.0
5.0
0
4.0
0
5.0
4.9
-26.1
~
4.9
~
~
4.9
~
-30.6
-30.6
4.9
~
4.9
4.9
4.9
4.9
4.9
4.9
-21.0
-29.1
-18.6
-29.1
-30.6
-20.0
~
-29.2
-29.2
~
-29.2
~
4.9
-29.1
-29.2
24.2
-30.9
-30.9
-29.2
~
~
~
~
-26.2
0
-26.2
0
2.3
4.9
4.8
4.8
4.8
4.8
-29.2
~
-29.2
-29.2
-29.2
-29.3
-29.2
-29.2
-29.2
-29.2
-29.2
-29.2
-29.2
~
-18.8
-26.2
-30.7
-27.6
-30.7
-201
-26.2
-24.6
-24.7
-27.6
-20.0
-25.7
-30.7
-29.2
-30.7
~
~
-29.1
-30.6
-20.0
-30.6
~
~
-21.0
-26.1
4.9
-29.2
-29.3
-27.2
-29.2
-23.8
-23.8
-26.2
~
~
~
-12.5
-12.5
0
-26.2
~
-29.2
-29.2
~
-18.8
-26.2
-30.7
-27.6
-30.7
-20.1
-26.2
-24.6
-24.7
-27.6
-20.0
-25.7
-30.7
-29.2
-30.7
~
~
-29.2
-29.2
~
~
-30.6
~
~
~
~
-29.3
-27.2
-29.2
-29.2
-29.2
-29.2
-29.2
-29.2
-29.2
-29.3
-29.2
-29.2
-29.2
~
-29.2
-23.8
-23.8
-29.2
-29.1
-29.1
-29.2
0
-29.2
-29.2
-29.2
-29.2
-29.2
-29.2
-29.1
-29.2
-29.2
-29.2
-29.2
-29.1
-29.1
-29.1
-29.1
-30.7
-29.1
-30.7
-29.1
-30.7
~
-26.2
~
-24.6
~
~
~
-29.1
-26.1
-29.2
~
-24.5
-29.1
-26.0
-27.7
-24.5
~
-30.7
-29.1
-29.1
-29.1
-29.1
-30.7
-29.1
-30.7
-29.1
-30.7
~
-26.2
~
-24.6
~
~
~
-29.1
-26.1
-29.2
~
-24.5
-29.1
-26.0
-27.7
-24.5
~
-30.7
-29.1
-24.5
-24.5
-26.0
-26.0
-26.0
-26.0
-26.0
-29.1
-29.2
-29.2
-29.1
4.9
-29.1
-29.2
-29.2
-29.2
-29.2
29.2
29.2
0
-29.2
-29.1
-29.1
-29.2
4.8
4.8
4.8
4.8
4.9
2.3
2.3
0
-26.1
-26.0
-26.0
-26.0
-26.0
-24.5
-24.5
-29.1
-30.9
4.9
4.8
0
-12.3
AC 6.9V
SW901 – 903, 972, 977
990 – 994
EVQ11A
SKQNAB
P-E73/J71
I-1
P-E76/J74
F-4
P-E73/J71
L-6
P-E73/J71
L-8
P-E72/J70
G-1
P-E73/J71
D-1
P-E73/J71
L-5
Conditions
• INPUT: DVD auto
• PROGRAM: PRO LOGIC DSP
- AV AMPLIFIER 1
- ■ TO SERVICE PERSONNEL 2
- ■ FRONT PANEL 2
- ■ REAR PANELS 3
- ■ SPECIFICATIONS 4
- ■ GENERAL 5
- ● DIMENSIONS 5
- ● SET MENU TABLE 6
- ● SUPERIMPOSING 6
- ■ INTERNAL VIEW 7
- ■ DISASSEMBLY PROCEDURES 7
- ■ SELF DIAGNOSIS FUNCTION 8
- ● Starting DIAG 9
- ● Canceling DIAG 9
- DIAGNOSTIC MENU 10
- Details of DIAG menu 13
- 1. DSP THROUGH 14
- DSP 0dB 14
- FULL BIT 15
- 2. HP ROUTE 15
- 3. RAM THROUGH 17
- 0dB 17
- 4. PRO LOGIC 18
- YSS928 18
- 5. SPEAKERS SET 19
- 6. DISPLAY CHK 20
- EFFECT OFF 20
- 7. MANUAL TEST 21
- 8. RS-232C 21
- 9. PRESET 22
- INHIBITED 22
- RESERVED 22
- THM PRD PRV 23
- 028 006 009 23
- KY0 KY1 RECOUT 23
- 100 100 060 23
- 11. IF STATUS 24
- IFST:4403070500 24
- 12.DSP RAM CHK 26
- NoEr 26
- ■ AMP CHECK 27
- ■ IC DATA 28
- 16 bit µ-COM (CPU) 29
- IC501 : YSS928 (DSP P.C.B.) 32
- IC503 : PM4007A (DSP P.C.B.) 36
- AC-3 RF Demodulator 36
- Superimpose 39
- IC611 : BU2092 (VIDEO P.C.B.) 41
- ● Extension Port 41
- ■ DISPLAY DATA 42
- ● ANODE CONNECTION 43
- ■ PIN CONNECTION DIAGRAM 44
- ■ BLOCK DIAGRAM 45
- DSP P.C.B 47
- FUNCTION P.C.B 48
- VIDEO (1) P.C.B 50
- VIDEO (6) P.C.B 51
- VIDEO (3) P.C.B 52
- OPERATION (1) P.C.B 53
- OPERATION (2) P.C.B 54
- MAIN (1) P.C.B 55
- MAIN (3) P.C.B 56
- ● R, T, B, G models 56
- R, T, B ,G only 57
- F AMP (2) P.C.B 58
- ● R, T models 58
- F AMP (6) P.C.B 58
- ■ SCHEMATIC DIAGRAM (DSP) 59
- SCHEMATIC DIAGRAM (FUNCTION) 60
- SCHEMATIC DIAGRAM (OPERATION) 61
- ■ SCHEMATIC DIAGRAM (MAIN) 62
- ■ SCHEMATIC DIAGRAM (F AMP) 63
- SCHEMATIC DIAGRAM (VIDEO 1/2) 64
- SCHEMATIC DIAGRAM (VIDEO 2/2) 65
- PARTS LIST 66
- P.C.B. DSP 67
- P.C.B. DSP & F AMP 70
- P.C.B. F AMP 71
- P.C.B. F AMP & MAIN 72
- P.C.B. MAIN 73
- P.C.B. MAIN & FUNCTION 76
- P.C.B. FUNCTION 77
- P.C.B. FUNCTION & VIDEO 79
- P.C.B. VIDEO 80
- P.C.B. VIDEO & OPERATION 81
- P.C.B. OPERATION 82
- CHIP RESISTOR 82
- ■ EXPLODED VIEW 83
- ■ MECHANICAL PARTS 84
- New Parts 85
- REMOTE CONTROL TRANSMITTER 86
- Key arrangement 87
- Initial Macro setup/初期登録マクロ 88
- 1/4W Type 89
- 1/6W Type 89
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