Yamaha HTR-6230, Service Manual

Page: 77 / 99

★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
Components having special characteristics are marked ⚠ and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
77
DSP 5/6
RX-V365/HTR-6230
CB512
CB501
CB502
CB516
CB504
IC501
IC501
IC501
IC501
IC505
IC505
IC505 IC505
3.4
3.4 3.4
3.4
3.4
3.4
0
3.4
3.4 3.4
4.9
3.4
3.4
4.9
3.4
3.4
0
0.8
0.8
0
1.3
1.3
0
3.4
3.4
3.4
ANALOG L
FL
SW
SL
C
POINT C / EX3.3, D / Pin 8 of IC505, E / J504
Power ON Power OFF
EX3.3
IC505 8 pin
(/DRESET)
C
D
J504
(/RESET)
E
EX3.3
IC505 8 pin
(/DRESET)
C
D
J504
(/RESET)
E
Power ON
C
D
E
4B 13
4A 12
4Y 11
3B 10
3A 9
3Y 8
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
IC501 : SN74AHCT08PWR
Quadruple 2-input positive-AND gates
Vcc 14 1A 1
IC505 : SN74LV08APWR
Quadruple 2-input positive-AND gate
4B 13
4A 12
4Y 11
3B 10
3A 9
3Y 8
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
Vcc 14 1A 1
to DSP 1/6
to DSP 2/6
to DSP 3/6
to DSP 4/6
to DSP 6/6
to DSP 1/6
to DSP 2/6
to DSP 1/6-4/6
to DSP 2/6
to DSP 1/6, 2/6, 4/6
to DSP 1/6-4/6
to DSP 3/6
to DSP 3/6
to DSP 3/6
to DSP 6/6
to DSP 6/6
to MAIN (1)_CB161
Page 82 D10
to MAIN (1)_CB101
Page 81 A5
to MAIN (1)_CB164
Page 82 F4
to OPERATION (4)_CB182
(U, C models)
Page 80 K3
to OPERATION (2)_CB232
Page 80 A7