JVC AV42PD20ES Service Manual

SERVICE MANUAL
PLASMA WIDE TELEVISION

AV42PD20ES

BASIC CHASSIS

CONTENTS

AV42PD20ES
MF
! SPECIFICATIONS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ ! SAFETY PRECAUT IONS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ !
WARNI NG
!
FEATURES ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
! FUNCTIONS・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ !
TECHN ICAL INFORMAT ION
! INSTALLATIONS・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ !
SPECIFIC SERVICE INSTRUCTIONS
!
SERVICE ADJUSTMENTS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
! TROUBLESHOOTING・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ !
PARTS LIST
OPERATING INSTRUCTIONS
STAND ARD CIRCUIT DIAGRAM
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No.519 55
May 2002
A
V42PD20ES

SPECIFICATIONS

Item CONT ENTS
Dimensions ( W××××H××××D ) 10 4.8 cm ×11 4.0c m× 35 .8c m
Mass 58 .0 kg
TV RF System CCIR B/G, I, D/K, L ,L’
Colour Syst em PA L / SE CAM & NT SC 3.5 8 / N TSC 4. 43 ( NTSC p la y b ack on l y)
Sound System A2 ( B/G , D/K), NICAM (B/G , I, D/ K, L)
Teletext System Fastext(United Kingdom system), TOP(German syst em), WST(World standard system)
Rec eiving Frequency
French CATV 116MHz17 2MH z / 2 20 MH z4 69M H z
Intermediate
Frequency
Colour Sub
Carrier
Power Input AC 2 20V2 40V , 5 0H z
Power Consumption 380W ,2A ( Max. ) / 2 80W (A vg.) / 5 .5 w (St and by)
PDP S ize Vis ible ar ea 10 5.7 cm, [ Meas ured diag on ally]
Speake r
Au dio Output Rated
An ten na Input
Input / Output Terminals
Au dio ou tp u t RCA pi n typ e, V ari ab le au dio L/R o utput ar e avail a ble
PC Input
Headphone Jack
Remote Control Unit RM-C59 (AAA/R03 dry ce ll b atte ry×2)
Design and specifications are subject to change without notice.
VHF 47 MHz 470MHz
UHF 470MHz~86 2MHz
VIF Carrier 38.9 MHz( B/G , D/K, I, L) / 3 3.95MHz (L’)
SIF Carrier 33.4 MHz( 5. 5MHz : B/ G) / 32 .9 MHz( 6.0MHz : I)
32.4 MHz(6.5 MHz : D/ K, L) / 40.45M Hz(6.5 MHz : L’)
PAL 4.43MHz
SE CAM 4. 4062 5MHz / 4 .25 MHz
NT S C 3.58MHz / 4.43 MHz ( pl a y bac k)
8cm round×2 , 16 cm roun d×1 ( su b wo ofer) / 4Ω
5W + 5W ( L+R) / 20 W(su b woof er)
75Ωun ba l anc ed, C oaxial
EX T-1
EX T-2
EX T-3 21-p i n E uro c onnecto r ( SC A RT s ocket), Vi de o, Aud i o L/R , RGB signa l i npu t a r e a va ilable
EX T-4 RCA pin type, S-Video, Video and Audio L/R signal input are available
21 -p i n E uro c onnec to r (SC A RT s ocket) , Vi de o, Aud io L/R , RGB signa l i npu t a r e a va i lable TV br oad c ast out put (Vide o and Au dio L/R) are ava ilab l e
21 -p i n E uro c onnec to r (SC A RT s ocket) , S-V i de o, Video , A udio L/ R, RGB s ign al inpu t a re a vailable AV select or ( TV LIN K ) func ti on is avai l able
D-Sub 15 pin ×1 / si gnal (R, G, B / H&V SYNC)
St ereo min i jac k (φ3.5mm )
[21pin Euro connector pin assignment] [PC IN connector]
(15pin D-Sub connect or pin assignm ent)
2
No. 51955
A
V42PD20E
S
]
]
640×480
■■■■21-PIN EURO CONNECTOR (SCART socket) : EXT-1 / EXT-2 / EXT-3
(P-P= Peak to Peak, S-W= Sync tip to white peak, B-W= Blanking to white peak)
Pin Signal Designation Matching Value EXT-1 EXT-2 EXT-3
1 AUDIO R o utput 50 0mV (r ms) , Low i m pe dance
2 AUDIO R i n put 50 0m V(r ms) High i mp ed ance
3 AUDIO L output 500mV(rms), Low impedance
4 AUDIO GN D ○○○ 5 GND (B) ○○○
6 AUDIO L input 500mV(rms), High impedance 7B input 700mV
FUNCTION SW
8
(SLOW SW)
9 GND (G)
10 SCL1 NC
11 G in put 70 0m V 12 SDA1 NC NC 13 GND (R) ○○○
14 GND (YS)
15 R / C input
16 Ys i n put L ow : 0V - 0. 4V, H i gh : 1 V - 3V , 75 Ω○ NC 17 GND(VIDEO output) ○○○ 18 GND(VIDEO input) ○○○
19 VID EO outpu t
20 VIDEO / Y inp ut 1V
21 COMMON GN D ○○○
(B-W )
, 75Ω○NC
Low : 0V-3V, High : 8V-12V ,H i gh imped anc e
(B-W )
, 75Ω○NC
R : 700mV C : 300mV
1V
(B-W)
, 75Ω
(P-P)
75Ω
(P-P )
(Neg ati ve goi n g s ync), 75 Ω
(P-P )
(Neg ati ve goi n g s ync), 75
Ω
(TV OUT)
○○○ ○
(TV OUT)
○○○
○○○
○○○
○○ ○
(only R)
(TV)
(only V IDEO in pu t)
(LINE OUT)
(LINE OUT)
(LINE OUT) NC
○○
NC
NC
NC
NC
(only C )
■■■■15-PIN D-SUB CONNECTOR (PC IN connector)
Ea ch t ype si gna l o f co mp ut er
Model Resolution
IBM P C/AT compatible (VGA) 37.9 72.8
80 0×600 35.2 56.3 (SV GA) 37 .9 60 .3
10 24 ×768 48.4 60.0 (XGA) 56.5 70.1
Apple 640×480 35.0 66.7 Macintosh 832×624 49.7 74.6
10 24 ×768 60.2 74.9 11 52 ×870 68.7 75.1
Ho r iz ont a l Frequency [kHz
31 .5 59 .9
37 .5 75 .0 43 .3 85 .0 51 .1 10 0.4 61 .3 12 0.4
48 .1 72 .2 46 .9 75 .0 53 .7 85 .1 63 .0 99 .8 75 .7 12 0.0
60 .0 75 .0 68 .7 85 .0 80 .5 10 0.6
Ve rtical Frequency [Hz
PC IN connector [ 15pin D-sub pin assignment ]
Pin No. Signal Name Details
1 RED Red vi deo signal 2 GR EE N Gr ee n vid eo s igna l
3 BLUE Blue video signal 4 N ot c onnect ed
5-8 GN D Sign al e arth
9 N ot c onnect ed
10 GND Sign al earth 11 N ot c onnect ed 12 ―――――― 13 HSYNC Horiz ont al syn chron ous signal 14 VSYNC Vertical synchronous signal 15 ――――――
No. 51955
3
A
V42PD20ES

SAFETY PRECAUTIONS

<<<<専用
専用
専用専用
PDP
対応>
対応>
対応>対応>
02 -0 3- 19,
中嶋
中嶋
中嶋中嶋
1. The d esign of th is prod uct con ta ins sp ecial har d ware, ma ny circuit s and components specially for saf ety purposes. For con tinu ed pr ot ecti on , n o chan g es sh ould b e ma de to the o rig i nal d esign un less a uth or ized in writi n g by th e manu fac t urer .
Replacem ent p arts m ust b e i d entic al to thos e u sed in th e or i gi n al ci rcu its. S er v i ce sho ul d b e p er for m ed by qu alif ied p ers on nel on ly.
2. Alte r ation s of t he des ig n or circui try of t he prod uc ts sh ould not be made. Any design alterations or additions will void the manu fac t urer 's warra nt y and will f urth er r el i eve t he ma nufac tu rer of r esp onsib ili ty for per s o na l injury or pr operty d am ag e res ul t ing th erefr om.
3. Man y electr i c al an d m ec h ani ca l p ar ts i n th e pr od uc ts ha v e special safety-related chara cteristics. T hese characteristics are oft en no t e vi den t f r om v i sua l insp ecti on nor ca n t he pro tect io n aff orde d by th em nece ssarily be ob tain ed b y u s in g r ep l ac em en t com po nents rated for hig he r vo l tag e, watt age, etc . R ep lac em en t p arts whic h have th ese sp ecial s afet y ch ar act erist ics ar e
ide ntified in the parts list of Ser vic e manua l. El ectric al
components having such features are ide ntified by shading on the sche mat ic s and b y (!!!! ) on the parts list in Service manual. The us e of a sub sti tu te r ep lac em en t which do es n ot
h ave th e sam e s af ety c h ar ac t erist ics as t he reco mmen ded replac ement par t sh ow n i n th e parts list of Ser v i ce man ual m ay
cause shock, fire, or other hazards.
4. Don't shor t between the LIVE s ide ground and ISOLATED
(NE UTRAL) side ground or EARTH side ground when repairing.
Some model's power circuit is partly different in the GND. The diff erenc e of th e G ND i s sho wn b y th e LIVE : (") side GN D, the ISO LATE D(N EU TR AL) : ( #) side G ND and EARTH : ($) side GND. D o n't sh ort b et ween th e LIV E s i d e GND an d
ISO LATE D(N EU TR AL) si de GND or EAR TH side GN D an d n ever mea sure w it h a mea sur i ng a ppa r atus ( osci l lo scop e etc.) th e LI VE sid e GN D an d IS OLA TED(NE UTRAL ) s ide G ND or EARTH sid e GND at the s ame time. If above not e will not be kept, a fuse or any parts will be broken.
5. If any repair has been made to the chassis, it is recommended th at t he PDP volt age setti ng sh oul d be check ed or adj ust ed .
6. When se r vic e is r equ ire d, ob serve th e or i gina l lea d dr ess. E x tr a prec aut i on sh ou ld b e given t o assur e cor r ect l ea d dress in th e high vol tag e circui t a rea. W her e a s hor t c i r cuit h as occ u rr e d, th ose co mpon ent s tha t indica te evide nce of ove r hea ting should
b e r e place d. A lways u s e th e manuf act ur er 's rep lacem ent components.
7. Isolation Check
(Safety for Electrical Shock Hazard)
Af ter r e- ass embl in g th e p r odu ct, always per f orm an i solat io n ch eck on the expo s ed me tal p ar ts of t he cabin et ( a nte nn a
ter m i na ls, vid eo /au dio i npu t and outpu t t ermi n al s, C on trol kn obs, metal cabin et, sc r ew he ad s, ea rph one j ack, con tr ol s haf ts, etc.) to be su re th e p r odu ct is s af e t o o pe rate with ou t d an ger of elect rical shoc k.
(1) Dielectric Strength Test
The iso lation be tw een the AC pr im a ry ci rcu it an d al l me tal p arts exp osed t o the us er, p ar ticular ly an y e xpos ed met al p art having a retu rn p ath to t he c hass is sho uld withs tan d a vol t age of 150 0V AC (r.m. s.) for a period of one sec ond. This meth od of test r equi res a test equipment n ot g enerall y fou nd
in t he serv ic e trad e.
(2) Leakage Current Check
Plug th e AC l in e c ord d irect ly into the A C ou tlet ( d o not use a lin e isol ati o n transf orm er du r ing this ch eck.). U sin g a " Lea kag e Current T este r", me as ur e th e l ea k ag e cu rr e nt f rom eac h ex p os ed metal p ar t of the cabine t, p art icu lar ly any e x pos ed me tal p art
h aving a re turn pa th to the ch assis , to a kn own go od ea rt h grou nd (w a ter pip e, e tc.). An y l eaka ge c ur r en t must n ot e xceed
3.5mA AC (r.m.s.). Howev e r, in trop ic al ar ea , th is mu st no t ex ce ed 0.2 mA AC (r.m.s.).
""""
Alte rn at e Che ck M et hod
Plug th e AC l in e c ord d irect ly into the A C ou tlet ( d o not use a lin e isol ati o n tran sfor m er dur i ng this c he c k.). Use an AC vo lt meter
having 1000 Connect a 1 500 10W resistor paralleled by a 0.15µF AC-type
cap acitor b etwe en an e xpos ed me tal part a nd a kn own g ood ea rt h gr o und ( water p ipe, etc.) . M eas ur e t he AC volta ge acr oss the resistor with the AC voltmeter. Move the resistor connection to e ach expos ed met al pa rt, par ti c u l arly an y exp ose d m eta l par t h aving a re turn pa th to th e ch assis, and me asure th e AC vo ltag e
acr os s t he res is tor. Now, re v er se the plug in the AC o utlet an d repe at each m eas u re m ent . A ny volta ge measu red m us t not exce ed 0 .7 5V A C (r .m. s.) . Thi s corresp onds to 3.5 mA AC (r.m.s.).
Howeve r, in tropica l area, this must n ot exce ed 0 .3V AC ( r .m.s.). This corresponds to 0.2mA AC (r.m.s.).
GOOD EARTH GROUND
Ω /
V or more sensitivit y in the following mann er.
AC VOLT MET ER (HAVING 1000 Ω /V, OR MOR E SENSIT IVITY)
0.15μF AC -T YPE
PLACE THIS PROBE
1500 10W
ON E A C H EX PO SE D ME T AL PA RT
4
No.51955
A
V42PD20E
S

SAFETY PRECAUTIONS

1. The des i gn of thi s pr odu ct c ont ai ns spe cial har d ware and many circuit s and components specially for saf ety purposes. For
con tinu ed pr ot ecti on , n o chan g es sh ould b e ma de to the o rig i nal d esign un less a uth or ized in writi n g by th e manu fac t urer . Replacem ent p arts m ust b e i d entic al to thos e u sed in th e or i gi n al
ci rcu its. Se r v ic e sh ou ld be pe rf or me d b y qua li fi e d per s o nn el on ly.
2. Alte r ation s of the desi g n or circ uitr y of th e pr od uct s ho ul d not b e
made. Any design alterations or additions will void the manu fac t urer 's warra nt y and will f urth er r el i eve t he ma nufac tu rer
of r esp onsib ili ty for per s o na l injury or pr operty d am ag e res ul t ing
th erefr om.
3. Man y electr ical a nd me c ha ni cal p ar ts i n the pr od uc t h ave spe cial saf ety- r el at ed ch ar act er ist i cs. Thes e ch aracter istics a re oft en not evi d ent fr om visu al insp ectio n no r c an th e pr otect ion af for ded by
th em n ec ess ar y b e o bta in ed by using r e plac em ent c ompon en ts
4. The l ea ds in th e p r odu c ts ar e r ou ted an d d ress ed w it h t ies,
[UK MODEL]
rated for wattage, etc. Replacement parts which have these sp ecial saf et y char acte ristics ar e id enti fie d in t he P art s List of
Se rvi c e Ma nu al. E lectr ical c ompon en ts h aving such feat ur es ar e identified by shading on the schematics and by (!) on th e Pa rts List i n th e Ser vice M an ual. Th e us e of a sub sti tu te r ep lac em en t
whic h d oe s n ot hav e t he sa me s af et y ch aracte ris ti c s as th e reco mmen ded rep l acemen t p art s hown in th e P arts Li s t of
Se rvi c e Ma nu al m ay c ause sh ock, f ire, or o th er haz ards.
cl am ps, tu bing ’s , b arrie rs a nd t he lik e t o be s epa ra ted from live
p arts, h ig h t empe ra ture parts, movi ng parts an d / or sh ar p ed ge s
for t he preven tion of e lec tr i c sh ock and fire h azard. W hen ser v ice i s r e qu ir ed , the or i gi n al l e ad r outi n g and dre s s sh ould b e
ob served , and it sh oul d b e c o nfirmed t hat th ey h av e b ee n retu rn ed to no rmal, aft er r e- asse mblin g.

WARNING

1. The e quip me nt has b een d esign ed a nd m an ufact ured t o mee t
inte rn at iona l saf ety st and ards.
2. It i s th e l e ga l re spon s ibility of the rep aire r t o ensu re th at t hes e
saf ety st an dar ds are ma inta in ed.
3. Rep ai rs mu s t be mad e in accor d anc e with the relevan t saf ety
standards.
4. It is esse ntial th at s afet y cri ti ca l c ompon en ts ar e r epl a ced by
ap pr ove d p ar ts.
5. If mains voltage selector is provided, check setting for local
voltage.
No. 51955
5
A
V42PD20ES

FEATURES

"
New c hassi s d esign ena bl e us e of an interac tive on screen
control.
"
The TELETEXT SYSTEM h as a built-in FASTEXT (UK system),
TOP (Germ an syst em) and W ST (world standard syst em) system.
"
Pure FLAT PANEL reproduce fine textured.
" Be caus e th is TV un i t cor r esp on ds t o mul tipl e x br oa dca s t, u ser s
can enjoy music programs and sporting events with live realism.
" In ad diti on , BI LINGUAL pr o gram s can b e h eard in th ei r or i g in al
language.
" Built-in E CO (ECONOMY, ECOLOGY) sen sor MODE.
In acco rd ance with the br ig ht ness in a room, th e brigh tn ess
an d/ or con tr as t of th e pict ure c an be ad jus te d autom at ic al l y to make the op ti mu m pi ctu re which is eas y on the e ye.
TV EXT-1 EXT-3
"
Users can make VCR dubbing of picture and sound by controlling
th e AV se lecto r t o s elect a n opt ion al s our ce at the E XT -2 ou tpu t
sh own i n figu re.
EXT-4
EXT-2
6
No.51955
A
S
FUNCTIONS
FRON T TERMINAL
1 52 3 4
■■■■
FUNCT ION NAM E
1PC IN CONNECTOR (15pin D-sub connec tor) 2HEADPHONE JACK (MINI JACK) 3EXIT-4 TERMINAL
V42PD20E
4VO LUM E ( ) BUTTON
Press this button to display the volume level indicator. Press the up/d ow n ( ∨/∧) b utt ons to cha nge v o l um e w hi le
the volume level indicator is dis played.
5/∧
(UP/DOWN ) BUTTONS
Yo u can use th is b utto n as th e ∨/∧ bu tto ns of the PR ch annel. P re s sing the ④ volume button makes this button
function as the volume - /+ butto ns.
LEFT SIDE TERMINAL
1
2
3
■■■■FUNCT ION NAM E
1
MAIN POWER SW
2
AC INLET
3
AERIAL SOCKET
4
AUDIO OUT (L, R) TERMINAL
5EXT-1(IN/OUT) TERMINAL 6EXT-2(IN/OUT) TERMINAL 7EXT-3(IN) TERMINAL
4
5
7
6
No. 51955
7
A
V42PD20ES
i
REMOTE CONTROL UNIT
1
2
3
4
5
6
7
15
16
17
18
23
24
■■■■FUNCT ION NAME
1
MUTI N G Key ( )
2
NUMBER (ten) Key
8
9
10
11
12
13
14
19
20
21
22
25
26
3 ZOO M Key 4
HYPER SOUND Key
5
INFORMATION Key ( )
6 TV Ke y 7
VOLUME -/+ Key
8
STAND-BY Key ( POWER)
9
PIP Key
A
CO LO UR K ey
B TEXT Key ( ) C
MENU / OK Key
D
PR C HAN NE L UP/ DOW N (∧/∨) Key
E FU NC TION ( / & /) Key F
MODE Key (F. T/L) : LIST⇔FLOF /TO P
G HO LD Key ( ) H
SUB PAG E Key ( )
I
STORE Key ( )
J SIZE Key ( ) K
REVERSAL Key ( )
L
INDEX Key ( )
M
DISPLAY CANCEL Key ( )
N
TV / TEXT / DVD Key
?
i
O CHANGE Key ( ) P
FREEZE Key
Q
SUB-PAGE (∧/∨) Key
8
No. 51955
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S

TECHNICAL INFORMATION

y
y
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PDP (PLASMA DISPLAY PANEL) DESCRIPTION
! CAUTION
Alth ou gh a PD P i s ma de w i th high ly ad va nc ed p r ecisi on , th is do es n ot nec es sarily m ean a ll o f th e cel l s op er at e cor r ect ly. T he PDP
inevit ably i nc ludes cell th at do no t li gh t or ligh t co ns ta ntly. If t he sp ecificat ions (PD P p er form an ce) ar e uncle ar at t he t ime of s hip me nt, an adeq uate d escr ip ti on can not be con veyed to t he customer. In eve nt of i n quiries f rom c usto me rs re ga rd ing PD P p erfor m an ce, chec k th e f ollo w in g s pecifi cat i ons i n or d er to of fer a suita bl e reply.
!
CELL ARR ANGEMENT
The PDP is c ons tru cted of f r ont a nd rear glas s substrat es pr ovid ed with re spec tive di scha rge elec trod es. Be tween th ese , ne on f or
disch ar gi ng an d x eno n f or g ener ating ul tr aviolet r a ys are enclos ed. On e p ict ur e elem en t (pixel ) i s com po sed of Red, Green an d Bl ue (R GB) cell s. Th e c ell pi tc h is 0.36 mm h or iz ontal (1.08 m m per p ixel) by
1.08mm vertical.
As s hown in Fig.1 , t he cel l s are ar r ang ed fo r each R/G B c olour. A p ixel consists of each cell of R/G/B / colo ur.
The size of a c el l is 0. 36mm h ori zont al l y an d 1 .08m m v ert i cally.
Direction
Horizontal(H
V42PD20E
Ve rt ic al(V
1ST pixel
2nd pixel
767th pixel
line
768th pixel
line
line
line
1st pixel
arra
2nd pixel
arra
R G B R G B
RGBRGB
G BRG B
R
GBRGB
R
H 1.08mm
Pit ch of pixe l
Fig. 1 PIXEL (CELL) ARRANGEMENT
On e pixel
(1dot)
R cell G cel l
B ce ll
1023th pixel
arra
1024th pixel
arra
R GBRG B
RGB RGB
G BRG B
R
GBRGB
R
H 0.36mm
Pit ch of cel l
V 1. 08 mm
Pit ch of p ixe l
Pitch of cell
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PIXEL FAULT
The re ar e two p ixel f aults - b rig ht fault an d d ark f ault - tha t are respe ctivel y d efin ed as f ollows.
(1) BRIGHT FAULT
In this pi xel fault, a c ell tha t sh ould no t li gh t orig inally i s light in g or fl ash i ng on and o ff.
For check ing thi s pi xel f ault, inpu t A LL BL AC K SC R EE N an d fin d o ut the c ell th at is lig hti n g or f lashin g on and of f.
(2) DARK FAULT
In thi s pixel faul t, a cell that sh ould light or i gin al l y is not ligh ti ng or not fl as hing o n and of f or lighti n g with the bright nes s twic e as b ri gh te r as originally ligh ting.
For check ing th is pi xel f au lt, in put 100% of eac h RG B c olour an d f ind out t he cell t hat is not ligh ting or n ot fl ash in g on an d off or lighting wit h the br i ght ness as bright er as orig inally l i gh ting.
No. 51955
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V42PD20ES
(3) PIXEL FAULT S PECIFICATION
Screen display Criteria for number of faulted cell
Criteria for number of
consecutive faulted cell
Bright faultAll black screen
Red level 100% on entire screen
Gr ee n l ev el 10 0% on en tir e scr eenDark fault
Blue l eve l 10 0% o n ent ire scr een
(Note) A-zone : Center portion
(area enc losed by 1/4 verti call y f rom t he top a nd bot tom a nd 1/ 4 horiz ont all y fr om th e ri gh t and left s id es.)
B-zone : Other area
B zone
A zone
52.9cm
(Note) The c on s ecu tiv e p ixe l f ault t hat are di ag onal l y or in tensi v ely g enera ted s h al l be int erp r ete d a s f ollo ws :
A zone: 2 or less than 2 in each colour B zone: 3 or less than 3 in each colour
A zone: 3 or less than 3 in each colour B zone: 8 or less than 8 in each colour
(1/4H)(1/4H)
(1/4V )
(1/4V )
2 or Les s th an 2
con secut ivel y
2 or Les s th an 2
con secut ivel y
→→→→ cons ecut ive 3
→→→→ cons ecut ive 3
→→→→ cons ecut ive 4
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No. 51955
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INSTALLATIONS

V42PD20E
1. SAFETY PRECAUT ION FOR PDP OPERATION
(1) Do no t pr e ven t th e r adi at ion of he at fr om bac k, top and flan k
si des of a PD P .
Preve ntin g the ra di a tion of h eat f rom eac h side cau ses high te mp er atu r e w i thi n a PD P a nd m ay d am ag e the in ner c ircui t.
(2) Ins tal l a P DP in a p l ace where is well ven ti l ated .
Ambie nt t emper atur e sho ul d b e wi th in a r ang e of 0~~~ 40℃℃℃℃ .
2. REQUIREMENTS FOR SETTING
The f ol l ow i ng m in imum sp ace mu st be kept wh en a PD P is installed.
(3) Ins tal l in not du sty p lace. If dust co ver s th e a ir in ta ke h oles ,
inside ventilation effect will reduce. Then, it may damage the
inn er ci rcu it . If the unit uses in such atmosphere, it will strongly require regu l ar clean ing or main ten anc e.
No. 51955
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