KENWOOD KRFV4550DS
Service Manual

KRF-V4550D/V4550DE/V4550D-S
ADJUSTMENT
No. ITEM INPUT SETTINGS SELECTOR : FM (A) 1 DISCRIMINATOR 98.0MHz 1kHz, ±40kHz dev. 70dBf (ANT. input) (A) 98.0MHz 1kHz, ±40kHz dev. MONO 70dBf (ANT. input) (C) 98.0MHz 1kHz, ±40kHz dev. Selector : L or R Pilot : ±6kHz dev. 70dBf (ANT. input) (A) 98.0MHz MONO 1kHz, ±40kHz dev. 29.2dBf (ANT. input) OUTPUT SETTINGS RECEIVER ALIGNMENT SETTINGS POINTS ALIGN FOR FIG. FM SECTION Adjust NO.1 and NO.2 repeatedly. Connect a DC voltmeter between 1 and 2 of CN4 on (X07).

MONO 98.0MHz

L4 (X07)

0V

2

DISTORTION (MONO)

(B)

MONO 98.0MHz

L5 (X07)

Minimum distortion

3

DISTORTION (STEREO)

(B)

AUTO 98.0MHz

IFT (FRONT END : A1)

Minimum distortion (L or R)

4

TUNING LEVEL

(B)

MONO 98.0MHz

VR1 (X07)

Adjust VR1 and stop at the point where ED1 (TUNED) goes on.

SYSTEM CONNECTIONS

CENTER L

DVD

CD/DVD

FRONT SPEAKERS

CENTER SPEAKERS

AM

R FRONT SURROUND SUB WOOFER DVD/6ch INPUT
VIDEO 2 COAXIAL

AC OUTLET AC 230V~50Hz
OPTICAL DIGITAL IN

SYSTEM CONTROL
VIDEO

GND L FM 75� R GND PHONO CD/DVD REC OUT PLAY IN REC OUT PLAY IN

REC OUT PLAY IN VIDEO 1
SUB WOOFER PRE OUT

SWITCHED TOTAL 90W MAX

MD/TAPE1

VIDEO 2 MONITOR AUDIO

FM SG

AG

(A)
AC voltmeter Oscilloscope Distortion meter

FM SG
Dummy antenna

MPX

AG

(C)

TV SG

HTB TV MPX

AG

(D) (B)

4