Operation Pcb - Yamaha RX-V540 Service Manual

A B
RX-V540/RX-V540RDS/HTR-5650/HTR-5650RDS/DSP-AX540
RX-V440/RX-V440RDS/HTR-5640/HTR-5640RDS/DSP-AX440
1
I
OPERATION (1) P. C. B. (Lead Type Device)
FUNCTION (4)
HPMT
2
VRB
VRA
/HP
ISB
ISA
REM1
PSW
/BLK
CKFD
DTFD
CEFD
ADKEY1
+5M
ADKEY0
VP
MG
OPERATION
FM/AM
(3)
3
VRA
VRB
MG
HPE MEMORY
HPR
E
HPL
-12
+12
FUNCTION (1)
4
5
6
7
64
C D
1 2 5
PRESET/
TUNING
TUNING
MODE
+ -
CONTROL
BASS/TREBLE
E F G
1
8
A/B/C/D/E
PRESET/TUNING
H I
OPERATION (2)
65 68 69
EON RDS MODE/
FREQ
PTY SEEK
START MODE
STEREO
PROGRAM
Circuit No.
R524~527
SW516~519
X: NOT USED
O: USED / APPLICABLE
J
OPERATION (6)
INPUT
6CH INPUT
INPUT MODE
SPEAKERS
B A
OPERATION (5)
J, U, C, R, T, K, A, L B,G
X O
X O
• Semiconductor Location
Ref. No. Location
D551 B4
D552 C4
IC551 F4
Q551 E4
Q552 E4