Yamaha RX-Z11 Service Manual page 164

A B C
RX-Z11/DSP-Z11
OPERATION
1
3.3 3.3
2 -32.2
-32.2
-31.3
-31.2
3
4
-26.5
-30.4
-16.7
-34.3
-34.3
-27.7
-32.1
-25.5
-18.9
-32.1
-29.9
-31.2
-23.3
-27.7
-21.1
-18.9
5
-21.1
-25.5
3.3
-25.5
-32.1
-31.6
ZONE 4 ZONE 3
6
5.0
5.0
0 0
0 0
0
ZONE
0
7
8
Key detection for AD port
Key input (A/D) pull-up resistance 10 k-ohms
RX-Z11 (U, C, A models)
Ohm 0.0 +1.2 k +1.2 k +1.8 k +2.7 k +3.3 k +4.7 k +8.2 k
V ~ 0.3 ~ 0.7 ~ 1.1 ~ 1.6 ~ 2.2 ~ 2.7 ~ 3.1 ~ 3.6
KEY0 PROGRAM PRESET FM/AM MEMORY TUNING STRAIGHT SPEAKESR SPEAKESR
(3 pin) (PUSH ENTER) /TUNING MODE EFFECT A B
KEY1 PURE MENU TONE REC OUT ZONE MULTI ZONE MULTI ZONE MULTI ZONE
(2 pin) DIRECT CONTROL ZONE 2 CONTROL ZONE 4 ZONE 3 ZONE 2
DSP-Z11 (R, T, K, B, G, E, L models)
Ohm 0.0 +1.2 k +1.2 k +1.8 k +2.7 k +3.3 k +4.7 k +8.2 k
V ~ 0.3 ~ 0.7 ~ 1.1 ~ 1.6 ~ 2.2 ~ 2.7 ~ 3.1 ~ 3.6
KEY0 PROGRAM STRAIGHT – – – – SPEAKESR SPEAKESR
(3 pin) (PUSH ENTER) EFFECT A B
KEY1 MULTI ZONE
PURE MENU TONE REC OUT ZONE MULTI ZONE MULTI ZONE
(2 pin) DIRECT CONTROL ZONE 2 CONTROL ZONE 4 ZONE 3 ZONE 2
9
DSP-Z11 (J model)
Ohm 0.0 +1.2 k +1.2 k +1.8 k +2.7 k +3.3 k +4.7 k +8.2 k
V ~ 0.3 ~ 0.7 ~ 1.1 ~ 1.6 ~ 2.2 ~ 2.7 ~ 3.1 ~ 3.6
KEY0 –
PROGRAM STRAIGHT – – – SPEAKESR SPEAKESR
(3 pin) (PUSH ENTER) EFFECT A B
KEY1 PURE MENU – – – – – MULTI ZONE
(2 pin) DIRECT ZONE 2
10
# 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.
164
D E F
-16.7 -21.1
-32.2 -14.4
-32.2
-14.4
-34.4 -21.1
-23.3
-16.7
-32.2
-32.1
-27.7 3.3
0
-25.5
IC402 3.3
-21.1
3.3
-14.5
3.3
-12.3
3.3
-18.8
1.5
-27.2
-32.1
0
-16.7
-18.9
-16.7
-27.7
3.3
0
3.3
3.3
3.3
1.8
1.5
0
ZONE 2
5.0 5.0
0
0
0 0
0 0 0
0 0 0
STRAIGHT
+18.0 k
~ 4.2
AUDIO
SELECT
PTY SEEK
START
+18.0 k
~ 4.2
AUDIO
SELECT
PTY SEEK
START
+18.0 k
~ 4.2
AUDIO
SELECT
PTY SEEK
START
G H I
CB401
-34.3
5.0
0
3.3
5.0
5.0
5.0
0
5.0
0
0
3.3
0 Page 172 K4
0
to SUBCPU (6)_CB991
0
3.3
3.3
3.3
0
0
0
0
3.3
3.3
5.0
3.3
5.0 W4001
3.3
3.3
3.3
3.3
0
5.0
5.0
W4002
0 0
0 0
3.3 3.3
0
5.0
5.0
0
W4003
0.1 0
5.0
5.0
3.3 5.0
0 3.3
0 0
0
0
0
0
-25.9
-25.9
5.0
0
0
IC403 IC403 5.0 2.8
0
IC404
0 0 0 2.8
5.0
0 0
0
0
0
OPERATION (3)
OPERATION (1)
W4501A
5.0
5.0
0
0
0
2.9
2.9
0
0
OPERATION (4)
W4501B
5.0
0
5.0
0
CB452
0
5.0
5.0
3.3
0
3.3
0
CB451
Page 160 M3 -26.5 -26.5
-26.5 -26.5
to DSP_CB704
MASTER
5.0
ON/OFF 0
0
5.0
5.0
0 0
MAIN ZONE W4505A
0 5.0
ON/OFF
5.0 5.0
0
W4505B
3.3
0
0
CB453
OPERATION (6)
OPERATION (7)
J K L
IC403: TC7W14F
IC401, 402 : PT6302LQ-008
Schmitt inverter
VFD driver/controller IC with character RAM
1A 1 8 VCC
SG1
VDD CGROM
3Y 2 7 1Y
248 words x 35-bit
VSS DCRAM
16 words x 8-bit SEGMENT
VEE 2A 3 6 3A
DRIVER
RSTB
CGRAM GND 4 5 2Y
8 words x 35-bit SG35
DIN
8-bit
CLKB SHIFT
REGISTER
CSB AD1
ADRAM
AD
16 words x 2-bit
ADDRESS DRIVER
AD2
SELECTOR
COMMAND
DECODER
WRITE READ
ADDRESS ADDRESS P1
COUNTER COUNTER PORT
DRIVER
P2
CONTROL
CIRCUIT DIGITAL IC451: NJM4565M
GR1
CONTROL
Dual operational amplifier
GRID
DRIVER
DUTY V+
CONTROL 8
GR16
TIMING TIMING
GENERATOR 1 GENERATOR 2 2, 6
–INPUT
+INPUT
3, 5
OSCO
OSCILLATOR
OSCI
V–
4
CB460
5.0
5.0
0
IC452
0
0 0.2
0
0 0
0
0.2
0 0
0
5.0
0
0
0
-12.0
-12.2
0
0
0
0
CB458 JK451
5.0
3.3
3.3
3.3
0
3.3
0
5.0
0
5.0
CB459
3.3
3.3
3.3 12.2
0
0
0 IC451
5.0 0
0
0
0
IC451 0
0
0
-12.1
JK452
W4502
0
Page 172 K3
0
to SUBCPU (6)_CB999 0
0
0
0 0
OPERATION (2)
M N
IC404: TC7SH08FU
2-input AND gate
IN B 1 5 V CC
IN A
2
GND 3 4 OUT Y
IC452: SN74AHCT1G32DCKR
Single 2-input positive-OR gate
A 1 5 Vcc
B 2
OUTPUT GND 3 4 Y
1, 7
PROGRAM
(PUSH ENTER)
0
5.0
0
3.3
3.3
3.3
W4503
OPERATION (5)
JK453