Yamaha HTR-6290 Service Manual page 126

A B C
RX-V1900/HTR-6290/DSP-AX1900
FUNCTION 1/4
1
2
CB401
(B, G, E models)
3
5.1
0 0
CB402
4
Page 141 M6
to FL (5)_CB960
CB416
Page 141 L6
to FL (5)_CB972
5
CB403
Page 141 M8
to FL (3)_CB955
6
Page 141 L8
to FL (3)_CB952
7
to FUNCTION 2/4
FUNCTION (1)
8
Page 140 N3
to FL (6)_W9501
POINT A-1 XL402 (Pin 20 of IC402) POINT A-2 A-3 1 / Pin7, 2 / Pin8 of CB406
9
+5V 1
/RES 2
10
126
D E F
IC403
0
0
0
0
0
0
0
5.1
5.1
5.1
5.1
MICROPROCESSOR
4.8
4.9
0
(MAIN)
0
0
5.1
5.1
5.1
IC402
0
0
0
5.0
0
0
4.9
4.9
5.1
5.1
1.1
1.1
0.4
1.4
1.6
5.1 5.1
0
0
5.1
A-1
1.4 1.6
4.9
0.4 0.4 5.1
0.2
0
0
5.1
5.0
4.5
IC407
4.9
8.3 5.8 5.1 5.1
0
5.1
5.1 0
0 0
4.2
Page 132 I8 Page 132
A-2 A-3
2
to POWER (4)_W1 1 to POWER (3)_W9
+5V 1
/RES 2
AC cable ON AC cable OFF AC cable ON
G H I
0
5.0
5.1
(U, C, R, T, K, A, B, G, E, L models)
4.9 4.2
0
0
11.5
5.0
5.7
5.0
5.1
5.0
0
4.8
0
5.0
4.9
4.0
0
0 -11.2
4.9
0
4.0
4.9
4.0
4.0 5.0
4.0
0
4.9
-11.2
4.9
4.9
0
0
0
0.5 5.0
4.9 4.0
0.5
-11.2
4.9
0
0
4.9
0
0 5.0
4.9 0
0
4.9
0
0
0
0
5.1
4.9 5.0
4.9 4.9
4.9
-11.2
5.0
0
4.2
E1 Page 132 H7 Page 134 I2 Page 123
to POWER (3)_CB18 to A-VIDEO_CB203 to DSP_CB504
Page 142 A7
to NET_CB601
(R, T, K, A, B, G, E, L, J models)
Page 144 H8
to CONNECT (2)_CB952
(U, C models)
J K
DSP-AX1900
0 0 JK401
JK402
0 0
CB412
CB413
S150 R4037
3.3
0
4.9 IC405
0
5.1
5.1
0
0
5.1
0
0
IC406
0
IC404, 406: TC7SET32FU IC405: SN74AHC1G08DCKR
2-input positive-AND gate
2-input OR gate
IN B 1 5
V CC A 1 5 Vcc
F1 B 2
IN A
2
GND 3 4 Y
GND OUT Y
3 4
IC401: LC72722PM
RDS signal processor
1 5 6
VDDA 3 CLOCK
PLL
RECOVERY
REFERENCE (57 kHz)
(1187.5 Hz)
VOLTAGE
VSSA 4
IC407: RH5RE58AA-T1-FA
VREF
Voltage regulator 57 kHz
ANTIALIASING SMOOTHING DATA
MPX IN 2 bpf
FILTER FILTER DECODER
(SCF)
V IN V OUT
2 DO 20
3
CL 21
RAM ERROR CORRECTION SYNC / EC
DI 22 CCB (24 BLOCK DATA) (SOFT DECISION) CONTROLLER
CE
23
+
CLK (4.332 MHz)
T1
7 MEMORY
–
CONTROL
T2 8
TEST SYNC SYNC
T3 9 DETECT-1 DETECT-2
Vref OSC/DIVIDER
T4
10
1
GND
11 16 17 13 12
L M N
RX-V1900 HTR-6290
IC403: LC709004A-TLM-E
I/O-expander for microcontroller
14 VDDD
DIN 2 Serial/parallel converter/shift register 14 DOUT
15 VSSD
CLK# 3 15 VDD
19 RDS-ID
19 VSS
CS#
4
18 SYNC
RES# I/O control/output register
21
24 SYR
port 0 I/O buffer port 1 I/O buffer
24 17 15 8