Yamaha RX-Z11 Service Manual page 171

A B C
SUBCPU 1/2
1
(Writing port)
2
5.0
0
5.0 5.0
9.8 0
-9.1
0.1
2.6 0
3 JK81
-2.4 5.0
0 -9.5 5.0
9.4 9.4 0
0 5.0
RS-232C 0
-9.1
0
DRIVER
12.0 11.7
11.8
11.3
12.0 0.1
JK82
5.0
4
0
12.0 11.7 11.3
TRIGGER
OUT 11.8
11.3
12.0 0
JK83
5.0
0
JK84
0 0
JK85 0 0
5
REMOTE
JK86
0 0
0
JK87 0
6
7
SUBCPU (1)
8
Page 165 D4 Page 165 D5
to INPUT (1)_CB201 to INPUT (1)_CB202
9
Page 163 B9
to FUNCTION (2)_CB251
SBL
Page 162 F3
to FUNCTION (1)_CB303
10
SUBCPU (3)
D E F
Page 176 G9
to DVIDEO (1)_CB815
4.9
0
0
5.0
5.0
4.4
5.0
1.8 5.0
1.4 5.0
0.8
1.6
1.8 1.4 1.6
0
0
0 0
0
5.0
5.0
0
0 0
5.0 0.6
5.0
IC100
5.0
5.0
0
5.0
0
5.0
5.0
5.0 A-1
5.0
0
0
0
0
to HD radio tuner
Page 165 D6
Page 161
to INPUT (1)_CB203
to DSP_CB784
AD IN
(U model)
Page 163 G9
SUBCPU (2)
to FUNCTION (2)_CB254
C
SL
SWL
FL
Page 162 F2
to FUNCTION (1)_CB302
Page 165 L3 Page 165 L3
to INPUT (1)_CB206 to INPUT (1)_CB207
G H
(For factory)
5.0
5.0
0 5.0
0 5.0
Note) Replacing IC81 EEPROM will clear the user memory (parameters, system memory,
tuner preset, etc. of the sound field program).
5.0
5.0
0
0.7
0.7
0.8
0
0 0
1.1
1.0
1.0
0
0
0
5.0 5.0
5.0 4.5
5.0 5.0 0
5.0 5.0 0 4.4
0 5.0 0 5.0
5.0 5.0 0
5.0
5.0
EEPROM
SUB
MICROPROCESSOR
0
0
5.0
0
12.0
0
5.0
0
5.0
0.1
11.9 11.9
0
0
0
0
5.0
0
11.9 11.9
0
0
0
0
5.0
0
0 0
IC83
5.0 5.8
5.0
5.8 9.1
5.8
5.0 5.0 0
0
3.3
4.3
5.0 0
0
4.3
5.0
0
REGULATOR
DASB
DAS
DASW
DAC
J4 Page 161 K4
DAF
to DSP_CB785
AD IN
SUBCPU (4)
Page 163 G7 Page 163 G6
to FUNCTION (2)_CB255 to FUNCTION (2)_CB256
I J K
IC100: M38039FFLHP#U0
Sub-microprocessor
Single chip 8-bit microprocessor
Main Main
clock clock Sub-clock Sub-clock
input output input output
X IN X OUT X CIN X COUT
30 31 28 29
Clock generating circuit RAM
A/D
PWM
converter
(10) (8)
INT 3
P6 (8)
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
V REF AV SS
I/O port P6
CB82
0.8
0.7
0.9
1.0
0
0
Page 170 B8
0
0.6
to AMPPOW (1)_W124
4.9
5.5
4.5
4.4
0
9.4
CB83
1.6
4.4
-12.3
-12.3
11.0
-12.3
Page 170 B8
11.0
11.8
to AMPPOW (1)_W123
10.9
0
11.1
0
12.0
12.0
5.0
11.1
-12.0
-12.3
12.0
11.1
-12.0
-12.3
12.0
11.1
12.0
11.8
12.0
10.9
POINT A-1 XL100 (Pin 23 of IC100)
L M N
RX-Z11/DSP-Z11
Reset input
V SS V CC RESET CNV SS
32 1 27 26
Data bus
MICROPROCESSOR
ROM A Timer 1 (8)
X Prescalar 12 (8)
Timer 2 (8)
Y
Prescalar X (8) Timer X (8)
S
CNTR 0
PC H PC L Prescalar Y (8) Timer Y (8)
CNTR
1
PS
Timer Z (16)
CNTR
2
D/A D/A
SI/O2 SI/O1 SI/O3
converter converter
(8) (8) 2 (8) 1 (8) (8)
INT 00
INT
INT 1 01
INT 41
INT 2
P5 (8) P4 (8) P3 (8) P2 (8) P1 (8) P0 (8)
INT 40
20 21 22 23 24 25 28 29 57 58 59 60 61 62 63 64 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
I/O port P5 I/O port P4 I/O port P3 I/O port P2 I/O port P1 I/O port P0
(LED drive)
IC81: M24256-BRDW6TP
512k-bit and 256l-bit serial I 2 C bus EEPROM with three chip enable lines
Vcc
3
E0-E2 SDA
SCL
E0 1 8 Vcc
E1 2 7 WC
WC
E2 3 6 SCL
4 5 SDA
Vss
Vss
IC82: ADM222ARZ
High speed RS-232 line drivers/receivers
+5V INPUT
0.1µF
0.1µF
C1+ V CC
+5V TO +10V
0.1µF V+
VOLTAGE DOUBLER
C1–
C2+
+5V TO –10V
0.1µF VOLTAGE INVERTER V–
0.1µF
C2–
T1 T1 T1
IN OUT
TTL/CMOS RS-232
*
INPUTS OUTPUTS
T2 T2 T2
IN OUT
R1 R1 R1
OUT IN
TTL/CMOS RS-232
**
OUTPUTS INPUTS
R2 R2
R2 OUT IN
ADM2xx (ADM242)
EN
GND SHDN (ADM222, ADM242)
* INTERNAL 400kW PULL-UP RESISTOR
ON EACH TTL/MOS INPUT
**
INTERNAL 5kW PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
IC83: RH5RE58AA-T1-FA
Voltage regulator
V IN V OUT
2 3
+
–
Vref
1
GND
# All voltages are measured with a 10MΩ/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.
171