Kenwood VR-505, Service Manual

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CIRCUIT DESCRIPTION
0 : Pull down,1:Pull up
SET TYPE
TYPE
BAND
RECEIVING
FREQUENCY RANGE
CHANNEL
SPACE
IF PLL
Tuner Destination Port
PORT3(68PIN)
(CP205)
PORT2(67PIN)
(W109)
PORT1(66PIN)
(W105)
PORT0(65PIN)
(W106)
K, P, R
K1
1700
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz
0 0 0 0
AM 530kHz-1700kHz 10kHz +450kHz 10kHz
Y, M, I,
C, V
K2
1610
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz
0 0 0 1
AM 530kHz-1610kHz 10kHz +450kHz 10kHz
Y
K3
1610
RBDS
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz
0 0 1 0
AM 530kHz-1610kHz 10kHz +450kHz 10kHz
K, P
K4
1700
RBDS
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz
1 0 1 0
AM 530kHz-1700kHz 10kHz +450kHz 10kHz
Y, M, I,
C, V,
E, X, H
E1
FM 87.5MHz-108.0MHz 50kHz +10.7MHz 25kHz
0 0 1 1
AM 531kHz-1602kHz 9kHz +450kHz 9kHz
T
E2
LW
FM 87.5MHz-108.0MHz 50kHz +10.7MHz 25kHz
0 1 0 0 MW 531kHz-1602kHz 9kHz +450kHz 9kHz
LW 153kHz-279kHz 9kHz +450kHz 9kHz
E, T
E3
RDS
FM 87.5MHz-108.0MHz 50kHz +10.7MHz 25kHz
0 1 0 1
AM 531kHz-1602kHz 9kHz +450kHz 9kHz
T
E4
LW
RDS
FM 87.5MHz-108.0MHz 50kHz +10.7MHz 25kHz
0 1 1 0 MW 531kHz-1602kHz 9kHz +450kHz 9kHz
LW 153kHz-279kHz 9kHz +450kHz 9kHz
Q
Q1
RDS
FM L 65.0MHz-74.0MHz 10kHz +10.7MHz 5kHz
1 0 1 1 FM H 87.5MHz-108.0MHz 50kHz +10.7MHz 5kHz
AM 531kHz-1602kHz 9kHz +450kHz 9kHz
Q
Q2
RDS
FM L 65.0MHz-74.0MHz 10kHz +10.7MHz 5kHz
1 1 0 0
FM H 87.5MHz-108.0MHz 50kHz +10.7MHz 5kHz
MW 531kHz-1602kHz 9kHz +450kHz 9kHz
LW 153kHz-279kHz 9kHz +450kHz 9kHz
Y, M, I,
C, V
M
K2/E1 are decided by Tuner Destination Port 1 input.
(0=K2 type 1=E1 type)
0 0 X 1
Y
Y
RBDS
K3/E1 are decided by Tuner Destination Port 0 input.
(0=K3 type 1=E1 type)
0 0 1 X
1. Initial and Backup Function
1-1 Initial State
Below are set value if the microcomputer is initialized
when reset:
(1) AMP function initialization
• POWER POWER OFF (STANDBY)
• Input Selector TUNER
• Preset device None
• Visual output VIDEO1
• Speaker A relay ON
• Speaker B relay OFF
• Volume -66dB
• BASS 0dB
• TREBLE 0dB
• INPUT LEVEL 0dB
• SOURCE DIRECT 0dB
• MONITOR 0dB
• VIDEO2/MONITOR VIDEO2
• MD/TAPE TAPE
• RF BAND BAND 1
(2) SURROUND function initialization
• LISTEN MODE STEREO
• INPUT MODE
CD/DVD DIGITAL AUTO
VIDEO2 ANALOG
VIDEO3 ANALOG
DVD/6ch DIGITAL AUTO
• SUBWOOFER ON
• FRONT speaker size LARGE
• CENTER speaker size NORMAL
• SURROUND speaker size NORMAL
• DISTANCE Fch 3.0m / 10ft
Cch 3.0m / 10ft
Sch 1.5m / 5ft
• LEFT level 0dB
• RIGHT level 0dB
• CENTER level 0dB
• REAR (SL,SR) level 0dB
• SUBWOOFER level 0dB
• MIDNIGHT OFF
• CINEMA EQ OFF
(3) TUNER function initialization
• BAND FM
• PRESET CHANNEL " - - "
• Frequency receive Each destination
minimum value
K1/K2 FM : 87.50 MHz
AM : 530 kHz
E1 FM : 87.50 MHz
AM : 531 kHz
• AUTO MANUAL AUTO
1-2 Backup Function
When the AC power supply is turned off, the receiver micro-
computer enters the backup mode. As a result, it will return
to the last state before the AC OFF when the AC power sup-
ply is turned ON again
2. Destination List of Tuner
VR-505/506/507/509/510/517
3