Kenwood KRF-X7775D - Circuit Description

KRF-X7775D/X7775D-S/VR-5080/5090
6
CIRCUIT DESCRIPTION
0 : Pull down,1:Pull up
SET TYPE
TYPE
BAND
RECEIVING
FREQUENCY RANGE
CHANNEL
SPACE
IF PLL
K, P, R
K1
1700
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz
AM 530kHz-1700kHz 10kHz
+450kHz
10kHz
Y, M, I,
C, V
K2
1610
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz
AM 530kHz-1610kHz 10kHz
+450kHz
10kHz
K, P
K4
1700
RBDS
FM 87.5MHz-108.0MHz 100kHz +10.7MHz 25kHz
AM 530kHz-1700kHz 10kHz +450kHz 10kHz
Y, M, I,
C, V,
E, X, H
E1
FM 87.5MHz-108.0MHz 50kHz +10.7MHz 25kHz
AM 531kHz-1602kHz 9kHz
+450kHz
9kHz
E, T
E3
RDS
FM 87.5MHz-108.0MHz 50kHz +10.7MHz 25kHz
AM 531kHz-1602kHz 9kHz +450kHz 9kHz
1. Initialization
1-1 The Initial Setting
• Insert the power cord to AC wall outlet by pressing the "ON/STANDBY" key.
2. Destination List of Tuner
3. Conditions according to the models or destination
3-1 Distinction of Destination
: u-com (X13,IC3) Port 54
Type Voltage : Max 5.0V
K2 0~0.52
K1 1.61~2.49
K4(RBDS) 2.51~3.39
E3(RDS) 3.41~4.45
E1 4.47~5.00
Models ✽ Voltage : Max 5.0V
VR-5080 NO 0~0.37
VR-5090 YES 0.39~1.10
VR-5700 YES 1.12~1.84
VR-5900-S YES 1.86~2.49
KRF-X9995D/D-S YES 2.51~3.14
KRF-X7775D/D-S YES 3.16~3.88
KRF-X9995D-S
(M/X TYPE)
NO 3.90~4.61
KRF-X7775D-S
(M/X/V TYPE)
NO 4.63~5.00
3-2 Distinction of Models : u-com (X13,IC3) Port 53
✽ Switching of RF or Front IR and Rear IR Receiver Terminal.
P.ch K1 K2 K4 E1 E3
1 FM 98.3M FM 98.3M FM 98.3M FM 98.3M FM 98.3M
2 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
3 FM 89.1M FM 89.1M FM 89.1M FM 89.1M FM 89.1M
4 FM 108.0M FM 108.0M FM 108.0M FM 108.0M FM 108.0M
5 FM 90.0M FM 90.0M FM 90.0M FM 90.0M FM 90.0M
6 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
7 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
8 AM 1610K FM 87.5M AM 1610K FM 87.5M FM 87.5M
9 AM 1700K AM 1610K AM 1700K AM 1602K AM 1602K
10 AM 1000K AM 1000K AM 1000K AM 999K AM 999K
11 AM 630K AM 630K AM 630K AM 630K AM 630K
12 AM 1440K AM 1440K AM 1440K AM 1440K AM 1440K
13 FM 106.0M FM 106.0M FM 106.0M FM 106.0M FM 106.0M
14 AM 530K AM 530K AM 530K AM 531K AM 531K
15 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
16 FM 98.0M FM 98.0M FM 98.0M FM 98.0M FM 98.0M
17 FM 98.5M FM 98.5M FM 98.5M FM 98.5M FM 98.5M
18 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
19 AM 990K AM 990K AM 990K AM 990K AM 990K
20 FM 97.4M FM 97.4M FM 97.4M FM 97.7M FM 97.7M
4. Tuner Preset Memory
P.ch K1 K2 K4 E1 E3
21 AM 530K AM 530K AM 530K AM 531K AM 531K
22 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
23 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
24 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
25 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
26 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
27 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
28 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
29 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
30 FM 106.0M FM 106.0M FM 106.0M FM 106.0M FM 106.0M
31 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
32 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
33 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
34 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
35 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
36 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
37 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
38 FM 87.5M FM 87.5M FM 87.5M FM 87.5M FM 87.5M
39 FM 108.0M FM 108.0M FM 108.0M FM 108.0M FM 108.0M
40 AM 1000K AM 1000K AM 1000K AM 945K AM 945K