Kenwood CG-921 User manual

NTSCCOLORPATTERNGENERATOR
CG-921
PALCOLORPATTERNGENERATOR
CG-922
INSTRUCTION MANUAL
KENWOOD CORPORATION
C PRINTEDIN^AN
KENWOOD

CONTENTS
1. GENERAL3
2. FEATURES 3
3.SPECIFICATIONS • 4
4. PANELEXPLANATION• 6
5. OPERATINGPROCEDURE9
6. PRECAUTIONSFORUSE14
2
A product of
KENWOODCORPORATION
1 7-5, 2-chome, Shibuya, Shibuya-ku, Tokyo 150,Japan

1. GENERAL
2. FEATURES
Thecolorpatterngenerator, CG-921(or CG-922), is
a test patterngenerator that generates theoptimum
signal forthe adjustment service tothe television or
VTRintheNTSC mode (or PAL-B, G,orHmode).
This generator is smal1 and 1ight-weight andits
size issameas that ofour multi-meter, DL-712. It
is operated by batteries oran external DCpower
supply.
$Operationisveryeasy.
® The generatorisoperated by four UM2 batteries.
# Small and light-weight
# Al1 radio frequencies including VHFandUHFare
covered.
$ The radio frequency canbe changed onthe paneL
® The regular synchronizat ion signals including
the equalizing pulse and cut-in pulse are output.
•.'.') TheRF output sound carrier canbe turned onand
off.
3 The corner marker isprovided inthe cross hatch
pattern.
W Although CG-922is applied toPAL-B,G,orH,
generators for PAL-I and PAL-D are also available.
3

3. SPECIFICATIONS
CG-921
' G-922
[Video mode] NTSC
mode
PAL mode
[Video output]
Outputconnectoi
RCA pinconnector
Output ievel
Video
714mVp-p (75 Q terminated)
700mVp-p (75Q terminated)
Output ievel
Synchroni-
zation
286mVp-p (75Q terminated) 300mVp-p (75Q terminated)
! [Synchronous signal]
Horizontal synchronous
frequency
15. 734kHz 15. 625kHz
:Vertical synchronous
frequency
59. 94Hz
50. 00Hz
! Sub-carrier frequency
3. 579545 MHz ± 200Hz
4.43361875MHz± 200Hz
[RF output]
! VHF LOW
CH.in Japan 1-3 CH.in USA2-6
CH.in West Europe 2-4
! VHF
HIGH
4-12 7-13 5-12
UHF
13-62 14-83
21-69
Outputconnector F connector PAL connector
Output feve!
VHF: 1 mVor more (75Q terminated) UHF: 0. 5mVor more (75Q terminated)
[Sound]
Sound carrier frequency 4. 5MHz
5. 5MHz
Sound frequency
Approximately 1kHz
Sound carrier output
Toggling between ONandOFF pc; J ;
4

CG-921 CG-922
[Pattern]
Cross hatch 15(V)x11(H)withcorner
marker
Dot 1500 x 11(H)
W i ndow
White on the black background
Brightness order full-field
color bar
White 05%), ye 1 low, cyan,green, magenta, red, blue,black
White raster
100% white
Red raster
Green raster
Blue raster
[Power supp1y] Four
UM2 batteries
External power supp1y
DC 6V, 80mA or more (Max. 15V)
Battery 1ife
Manganese
battery
Approx. 25 hours (at RF OFF), Approx. 15 hours (at RFON)
Battery 1ife
Alkali battery
Approx. 80 hours (at RF OFF), Approx. 40 hours (at RFON)
[Weight] Approximately
760g (includingbatteries)
[Dimentions] Flame
dimentions
162x60x130mm (width/height/depth)
[Dimentions]
Maximum
dimentions
185x63x147mm (width/height/depth)
[Operating temperature/
humidityrange]
0-40°C 80%RH or less
1 [Within specification
temperature/humidityrange] 23-5°C
80%RH or less
[Accessories]
Instruction manual 1,RCA pin cord 1, Antenna cord 1
5

4. PANELEXPLANATION
6

® POWER Switch
Power switch. If this switchispressed, theLED
1ights andthe generator becomes operational.This
switch should be pushed off whenever the generator
is putout offbatteryoperation.
© POWER LED
If this LED lights, power is on.
© VIDEO OUT Terminal
Video signal output terminal. The output voltage is
1Vp-p when terminated with 75Q.
© RFOUT Terminal
This output pin AM-modulates the video signalinto
the RF signalfor output. All channels ofLOWand
HIGH ofVHFandUHF are coverd.
© Tuning Dial
This dial changes the RF signal channel.
© RFON/OFF Switch
ON/OFFoftheRF signaliscontrolled. When this
switch isON,theRF signal is output from
RF OUT in @.
® VHF/UHF Switch
The frequency band of the RF signalis switched.
® VHF HIGH/LOW Switch
Thisswitchis valid only when VHFhas been selected
by VHF/UHF switch ®. With these two switches
(® and ®), changeover to three bands; VHF
LOW/HIGHand UHF,is done.
© SOUND ON/OFF Switch
ON/OFFofthe sound carrier intheRF signal is
controlled.
®PatternSelector Switches
Thisswitch selects from eightpatterns. From left to
right, cross hatch, dot, window, colorbars, white
raster, red raster, green raster, and blue raster-
are provided.
© EXT Power Terminal
External DC power supply inputterminal.
External DC power supply should be nominally 6 V,
80 mAor more.
7

® Battery Case
This casecontains batteries. Four UM2 batteries
are used.The polarity is indicated inside the
battery case. If batteries arenotset correctly, the
generatormaybetroubled.Therefore, care must be
taken.
Either manganese or alkali, batteries canbeused.
Topreventthe bateries from consumption, turnoffthe
power supply when thegeneratorisnotused.
The battery life islongerinthe intermi ttent
operation thanthecontinousoperation.
When the battery capacity becomes smaller over time,
the screen image may waver ordecreaseinamplitude,
ornopatternmaybe displayed. Replacewithnew
batteries insucha case.
The polarity shouldbeas shown below.

5. OPERATINGPROCEDURE
5-1 CAUTION
Follow the instructions inthe operation manualfor
the television orVTR when the television orVTRis
adjusted by using this generator. Donot touch the
primary power supply andthe high-voltage power supply
of the television.
5-2 CONNECTING METHOD
• When VIDEOOUTof this generatoris connected tothe
videoinput ofthe television orVTR:
Connect ionshould bedoneby using the attached
pin code ifthe inputterminal ofthe television
is a pin jack.
If the inputterminal ofthe television isBNC,
use theBNC/pin conversionadapter.
9
RCAPin cord
Television
Inputterminal ofthe video

• When RFOUTof this generatorisconnected totheRF
input ofthe television:
If theRF input ofthe television isthe aerial
connector,connectionshould bedoneby using the
attached antennacord.
Otherwise,prepare the converter.
Beforeconnection,check whether the high-voltage AC
power leaks tothe antenna terminal. Ifthepower
leaks, connectionshould bedoneviathe capacitor
with the dielectric strenghtcorresponding tothe
voltage.
Antenna cord
Input terminal oftheRF
Television