KENWOOD KRFX9050D
Manual de Servicio

KRF-V5050D/V5550D/V6050D/V7050D/X9050D
CIRCUIT DESCRIPTION
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 microcomputer enters the backup mode. As a result, it will return to the last state before the AC OFF when the AC power supply is turned ON again
0 : Pull down,1:Pull up

2. Destination List of Tuner
SET TYPE TYPE K1 1700 K2 1610 K3 1610 RBDS K4 1700 RBDS E1 AM E2 LW E3 RDS E4 T LW RDS Q1 Q RDS FM MW LW FM AM FM MW LW FM L FM H AM FM L Q Q2 RDS FM H MW LW Y, M, I, C, V M Y RBDS 531kHz-1602kHz 87.5MHz-108.0MHz 531kHz-1602kHz 153kHz-279kHz 87.5MHz-108.0MHz 531kHz-1602kHz 87.5MHz-108.0MHz 531kHz-1602kHz 153kHz-279kHz 65.0MHz-74.0MHz 87.5MHz-108.0MHz 531kHz-1602kHz 65.0MHz-74.0MHz 87.5MHz-108.0MHz 531kHz-1602kHz 153kHz-279kHz 9kHz 50kHz 9kHz 9kHz 50kHz 9kHz 50kHz 9kHz 9kHz 10kHz 50kHz 9kHz 10kHz 50kHz 9kHz 9kHz +450kHz +10.7MHz +450kHz +450kHz +10.7MHz +450kHz +10.7MHz +450kHz +450kHz +10.7MHz +10.7MHz +450kHz +10.7MHz +10.7MHz +450kHz +450kHz 9kHz 25kHz 9kHz 9kHz 25kHz 9kHz 25kHz 9kHz 9kHz 5kHz 5kHz 9kHz 5kHz 5kHz 9kHz 9kHz 0 0 0 0 1 1 1 0 0 1 0 1 BAND FM AM FM AM FM AM FM AM FM RECEIVING CHANNEL FREQUENCY RANGE SPACE 87.5MHz-108.0MHz 530kHz-1700kHz 87.5MHz-108.0MHz 530kHz-1610kHz 87.5MHz-108.0MHz 530kHz-1610kHz 87.5MHz-108.0MHz 530kHz-1700kHz 87.5MHz-108.0MHz 100kHz 10kHz 100kHz 10kHz 100kHz 10kHz 100kHz 10kHz 50kHz IF +10.7MHz +450kHz +10.7MHz +450kHz +10.7MHz +450kHz +10.7MHz +450kHz +10.7MHz PLL 25kHz 10kHz 25kHz 10kHz 25kHz 0 10kHz 25kHz 10kHz 25kHz 0 0 1 0 0

Tuner Destination Port PORT3(68PIN) PORT2(67PIN) PORT1(66PIN) PORT0(65PIN) (CP205) (W109) 0 0 (W105) 0 0 (W106) 0 1

K, P, R Y, M, I, C, V Y

0 0

1

0

K, P Y, M, I, C, V, E, X, H T

1

0

1

1

0

0

E, T

0

1

0

1

1

0

1

1

0

0

K2/E1 are decided by Tuner Destination Port 1 input. (0=K2 type 1=E1 type) K3/E1 are decided by Tuner Destination Port 0 input. (0=K3 type 1=E1 type) X 1 1 X

4

Y