Yamaha RX-750 Service Manual Page 86
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86
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
*
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.
■ SCHEMATIC DIAGRAM (POWER & SUB TRANS)
REGULATOR
POWER SUPPLY
L
SL
C
SBL
AC 31.2
AC 17.7
19.3
–20.3
00
10.7
–11.2
0
0
0
5.0 10.7
0
5.0 10.7
0
11.9 19.3
0
0.9
5.0
0
–11.8
–20.3
1.1
0
0
0
–0.6 –0.6
–0.6
–0.6
–0.6
–0.6
54.4
54.9
53.8
53.8
0
0
0
53.8
53.8
1.1
54.4
54.9
53.8
53.8
54.9
1.1
54.4
–0.6
–0.6
0
0
53.8
53.8
54.9
1.1
54.4
–0.6
–0.6
0
0
53.8
53.8
54.9
1.1
54.4
–0.6
–0.6
0
0
53.8
53.8
54.9
1.1
54.4
–0.6
–0.6
0
0
53.8
53.8
54.9
1.1
54.4
55.9
–55.7
–55.7
–53.8
–53.8
–53.2
–53.4
0.5
–0.5
–0.5
–1.0
–1.0
00
0.5
55.9
55.6
–0.6
–0.6
0
0
1.1
–1.0
–0.3
0
0
0
0.3
WC05070 WC05070
s7
s8
C301, 303, 304
C302, 305, 336,
337
10/16
UU13710
10/16
UR83710
10/16
UU13710
10/16
UR83710
10/16
UU13710
10/16
UR83710
4.7/50
WB71360
4.7/50
UR86647
s7
s7
s8
s8
s7
s8
s8
TO POWER TRANSFORMER
Page 85 F-7
TO MAIN (1) W8
RX-V750/DSP-AX750/DSP-AX750SE Page 87 F-9
RX-V650/HTR-5760 Page 88 E-7
TO CONVERSION (1) CB706
Page 85 D-10
TO MAIN (1) W12
TO POWER TRANSFORMER
POWER (2)
POWER (1)
Page 85 A-5
TO MAIN (1) CB6
Page 85 A-5
TO MAIN (1) CB5
Page 85 A-1
TO MAIN (1) W15
Page 80 I-2
TO FUNCTION (1) CB307
Page 80 I-2
TO FUNCTION (1) CB308
Page 80 I-3
TO FUNCTION (1) W301
X: NOT USED
O: USED / APPLICABLE
Page 86 N-1
TO SUB TRANS CB407
IC301 : LM61CIZ
Temperature Sensor
Vout
+Vs
GND
0
4.7
4.1
9.9
9.9
9.90.7
0
1.2
0.1
8.7
~
~~
~~
~~
~~
~~
~
~
~
0.5
~
~
0
~
~~
~~
~~
0 0.2
0 0.2
0 4.9
4.9
5.1
0.8
0
0
0
0
5.1
5.1
0
0.1
0
4.9
~
~
~~
AC 8.1
G model (AC158.3)
J model (AC56.8)
Page 85 G-10
TO MAIN (2) CB121
X: NOT USED
O: USED / APPLICABLE
TO POWER CABLE
POWER TRANSFORMER (U, C, T, K, A, B, G, E, J)
OR
POWER (2) W291 (R, L)
SUB TRANS
IC402 : TC4013BP
Dual D Flip Flop
1
2
3
4
5
6
7
1Q
1CP
1CL
1PR
1DATA
1Q
VSS
14
13
12
11
10
9
8
VDD
2Q
2CP
2CL
2PR
2DATA
Q
CP
CL
Q
D
PR
2Q
Q
CP
CL
Q
D
PR
* 電圧は、内部抵抗10MΩの電圧計で測定したものです。
* Z印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
* 本回路図は、標準回路図です。改良のため予告なく変更することがございます。
- RX-V750/DSP-AX750/DSP-AX750SE 1
- RX-V650/HTR-5760 1
- ■ TO SERVICE PERSONNEL 2
- ■ IMPEDANCE SELECTOR 3
- ■ FRONT PANELS 4
- ■ REMOTE CONTROL PANELS 6
- ■ REAR PANELS 7
- ▼ RX-V750 (K model) 8
- ▼ RX-V750 (A model) 8
- ▼ RX-V750 (G model) 8
- ▼ RX-V750 (L model) 9
- ▼ DSP-AX750 (J model) 9
- ▼ DSP-AX750SE (B model) 9
- ▼ RX-V650 (U, C models) 10
- ▼ RX-V650 (R model) 10
- ▼ RX-V650 (T model) 10
- ▼ RX-V650 (K model) 11
- ▼ RX-V650 (A model) 11
- ▼ RX-V650 (B model) 11
- ▼ RX-V650 (G, E models) 12
- ▼ RX-V650 (L model) 12
- ▼ HTR-5760 (U, C models) 12
- ▼ HTR-5760 (T model) 13
- ▼ HTR-5760 (K model) 13
- ▼ HTR-5760 (A model) 13
- ■ SPECIFICATIONS / 参考仕様 14
- FMチューナー部 15
- AMチューナー部 15
- ● SET MENU TABLE / セットメニュー 17
- ■ INTERNAL VIEW 19
- 3. サブシャーシの外し方 21
- 4. P.C.B.ユニットの外し方 22
- 5. MAIN (1) P.C.B. の動作チェック 23
- 6. MAIN (2) P.C.B. の動作チェック 24
- 27
- 27
- 27
- DIAGNOSTIC MENU 28
- PS PRT :000 Z 29
- DC PRT :000 Z 29
- TMP PRT:000 Z 29
- 30
- 30
- Details of DIAG menu 31
- 31
- 2.ANALOG BYPAS 32
- 2.DSP BYPASS 32
- 3.RAM MARGIN 33
- 3.RAM FULL BIT 33
- 4.PRO LOGIC I 34
- 4.PRO LOGIC II 34
- 4. Neo:6 34
- 35
- 5. SPEAKERS SET 35
- 6.6CH INPUT_6 36
- 6.6CH INPUT_8 36
- 7.MIC CHK --dB 36
- 8.VFD CHEC 37
- 9. MANUAL TEST 38
- 10.PRESET INHI 39
- 10.PRESET RSRV 39
- DC:008 PS:030 40
- THM:092 Fan_/_ 40
- REC-OUT:186 40
- K0:100 K1:100 41
- IMP:8 PL:000 41
- IS1:3300020000 42
- L:10011100 42
- H:10011000 42
- IS2:0300FFFF 43
- CS1:FFFFFFFFFF CS5:00000000 43
- YSS BUS:NoEr 44
- SD BUS:NoEr 44
- BS1:0000000000 BS7:700D 44
- TI1:0000000000 TI2:00 44
- MTT:00180018FF 44
- 45
- 16. SOFT SWITCH 45
- PORT:00000110 46
- VER. Z0403 46
- CHECK SUM:D122 46
- AAC PORT:ON 46
- ■ AMP CHECK / アンプチェック 47
- ■ DISPLAY DATA 48
- ● ANODE CONNECTION 49
- ■ IC DATA 50
- Detector 52
- O: digital output terminal 57
- A: Analog terminal 57
- ■ BLOCK DIAGRAM / ブロックダイアグラム 61
- DSP P.C.B 63
- FUNCTION (1) P.C.B 64
- AM/FM TUNERMAIN (2) CB122 65
- FUNCTION (3) P.C.B 66
- FUNCTION (4) P.C.B 66
- FUNCTION (2) 67
- OPERATION (1) P.C.B 68
- OPTICAL LR VIDEO 69
- OPERATION (1) 71
- MAIN (1) P.C.B 72
- MAIN (5) P.C.B 72
- MAIN (6) W16 73
- POWER (1) P.C.B 74
- POWER (2) P.C.B 74
- ● R, L models 74
- SUB TRANS P.C.B 75
- CONVERSION (1) P.C.B 76
- CONVERSION (2) P.C.B 76
- POWER (1) 77
- ● Transistors 78
- ● Diodes 78
- ■ SCHEMATIC DIAGRAM (DSP) 79
- /V DC electronic volt meter 80
- * 電圧は、内部抵抗10MΩの電圧計で測定したものです。 81
- パーツリストに記載されている部品を使用してください。 81
- DISPLAY DRIVER 83
- OPTIMIZER MIC AMP 83
- ■ SCHEMATIC DIAGRAM (MAIN) 85
- X: NOT USED 86
- O: USED / APPLICABLE 86
- PARTS LIST 89
- P.C.B. DSP 90
- P.C.B. DSP & FUNCTION 93
- P.C.B. FUNCTION 94
- P.C.B. OPERATION 100
- HTR-5760 101
- P.C.B. OPERATION & MAIN 103
- P.C.B. MAIN 104
- P.C.B. MAIN & POWER 109
- P.C.B. POWER 110
- P.C.B. POWER & SUB TRANS 112
- P.C.B. SUB TRANS 113
- P.C.B. CONVERSION 114
- CHIP RESISTORS 120
- 1/4W Type 121
- 1/6W Type 121
- ■ EXPLODED VIEW 122
- ■ MECHANICAL PARTS 122
- 123
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