G321EV

G321EV SII | Alldatasheet

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• 1.4 Absolute Maximum Ratings (excluding CFL backlight)

AN.No.G321EV-560E LIQUID CRYSTAL DISPLAY MODULE G321EV USER’S MANUAL Seiko Instruments Inc.

AN.No.G321EV-560E NOTICE This manual describes the technical information, as well as the functions and operation of the G321EV Liquid Crystal Display Module made by Seiko Instruments Inc.’ Please read this manual carefully to familiarize yourself with the functions so you can make the best use of them. The descriptions here are subject to change without notice. Revision Record Edition Revision Date

1 Original June 1995

©Seiko Instruments Inc. 1995 Printed in Japan -i-

AN.No.G321EV-560E 1. SPECIFICATIONS 1.1. General The G321E is a thin liquid crystal display (LCD) module that consists of a full dot-matrix LCD panel, CMOS LSls, and a CFL backlight. The LCD panel features a wide viewing angle and high contrast. The full dot-matrix structure allows both graphics and character display. In addition, the display is clear and stable, with no image warping or position skew, because the display position is specified by the intersection of transparent electrodes in a matrix. 1.2. Features + Full dot-matrix structure with 320 x 240 dots + 1/240 duty + Four-bit parallel data input + Two power supplies : Vop = 5V, Vic = — 24V (for driving liquid crystal) + Built-in CFL backlighting, high-brightness, side-lighting type, using one CFL + Easy replacement of the CFL + Weight : Approx. 195g

1.3 Option Specifications

Model name LeD Dot color* | Background} viewing color* angle FSTN type . Transmissive, with CFL G321EVSRO00 | (black and White Black 6 o'clock backlighting (white), white) negative mode STN type . Transmissive, with CFL G321EV5B000 (blue) White 6 o'clock backlighting (white), negative mode * The LCD colors are affected by temperature, so the colors at low or high temperature differ slightly from those in the above table. ** On anegative mode LCD, the dots are white when the display data is high, and black (G321EV5R000) or blue (G321EV5B000) when the display data is low. To get a positive display ona negative mode LCD, invert the display data before inputting it to the module. -1-

AN.No.G321EV-560E

1.4 Absolute Maximum Ratings (excluding CFL backlight)

Vss = OV ee [vo | | oo | so | Powersupply voltage | vic | | Vp - 30.0 Vop ~ 30.0 input voitage | vw | | -03 | vont 03 | Vv | Operating temperature sesmrn | 0 | +50 | c_ | [ storagetemperawre [| tay [| | -20 S| +0 |< | dty as 20 +5 | tore Storage humidity es ee ee

1.5 Mechanical Characteristics

Module dimensions (H x V x T) [mm] | 150.0 x 96.0 x 14.0 max. Viewing area (H x V) [mm] | 103.0x 80.0 Active display area (H x V) [mm ] | 95.97 x 71.97 Dot dimensions (H x V) [mm] | 0.27 x 0.27 Dotpitch (H x V) [mm] | 0.30 x 0.30 Weight tg] H: Horizontal V: Vertical T: Thickness (max.)

1.6 Electrical Characteristics (Excluding CFL Backlight)

1.6.1. FSTN type (Black and white, transmissive type) Vss = OV, Ta = 0°C to 50°C symbol |___conditions [| min. | typ. | max. | unit _| Vop = 5V De [eee eT Ce Voo=5v#5% [08voo| - | voo | v_| Input voltage | too _| Vpp= 5.0V, Vic= — 24.0V | - [ 64 | is | ma | Current consumption* Vo= -15.6V fam = 70He.Ta= 25 | - | 57 | 15 | ma | * Display patterns : Checkered patterns Display data shift clock frequency : 3.0 MHZ -2-

AN.No.G321EV-560E

1.6.2 STN type (Blue, transmissive type)

Vss = OV, Ta = 0°C to 50°C Von = 5V Vv Re er ed ec Trish [va | voo=svesw [oaven| — | vee |v Input voltage Voo=sve5% [| 0 | = [o2Vool v_| Vop= 5.0V, Vic= -24.0V current consumption |—22—\\\\Poz otelsy | = | se | ss | | Framefrequency | frnm | Voo=sves% | 665 [ 70 | 735 | He | * Display patterns : Checkered patterns Display data shift clock frequency : 3.0 MHz

1.7 Optical Characteristics

1.7.1 FSTN type (Black and white, transmissive type)

1/240 duty, 1/13.1 bias, fem = 70Hz, Vopr = Vpp - Vo, CFL backlight: ON [em [yc | conaons temp. [ min. | typ. [ Max [uni [Reterene Viewingangle [@ |@=0 | ase [so [= [ — | aea.| Nosy Vowrs206y | [= @= -10° Vopr = 20.6 V a= O, [=| 230350] [Response time fail | ton | Voprezo.sv |“ Response time (fall) | tofr_| Vopr=20.6V | - | 150 | 230 | Note 4 Response time (rise) 97 0, oo [=| 100 | 1700 | Response time (fall) Vopr = 22.4V | - | s00 [ 750 | Measuring instrument : Canon illuminometer LC-3S 1.7.2. STN type (Blue, transmissive type) 1/240 duty, 1/13.1 bias, feim = 70Hz, Vopr = Vpp - Vo, CFL Backlight : ON [tem [sit] conor Temp. | min | to. | max. [unt [Reference | % |cz20 | - [ - J -1s | Notes 1 viewingange [@ |@=0 | ase [a0 [= |= | deg. | Notes Vopr=212V | 3s | - | - | - @= 0° Contrast @ = 0° 25°C Note 3 Vopr =21.2V Response time (rise) G= 0. [| - | 170 | 260 | - @ =0' 25°C Response time (fall) Vopr =21.2V [ - | 190 | 290 | Response time (rise) B= | og Lito | 1700 | Response time (fall) Vopr = 22.8V | - | 500 [| 750 | Measuring instrument : Canon illuminometer LC-3S -3-

AN.No.G321EV-560E Note 1: Definition of angles 8 and ¢ Note 2 : Definition of viewing angles @1 and 62 Z (@=0) Sensor cmax, Pott tn S 62 LY (gp = 180") ry Contrast g , c YY ' LCD panel co ry Cras Vas x KS X(g090" ' ! " = 1 1 N\\A a ns] \\ \\ Z| NNN TZ SG backlight 04 02 z @ Viewing angle @ (¢ fixed) Y(g = 0) Note: Optimum viewing angle with the (6=90°) naked eyeand viewing angle @ at Cmax. above are not always the same. Note 3: Definition of contrast C Note 4: Definition of response time tHe Vopr ~~ Brightness of selected dot (B2) Voltage _ CS . - - Brightness of unselected dot (B,) ra) Ir Brightness of selected dot Unselected | Selected state] Unselected state H 8 state (Gisplay ON (display OFF) (%) \\ 2 Bright Brightness (transmission) | 100% 90% 10% Brightness AN — Brightness of a a Sr ee unselected dot Dark ton tott t Vopr : Operating voltage frum : Frame frequency ° Operating voltage (v) ton + Responsetime (rise) tots: Response time (fall)

1.8 LCD Panel Lifetime

seo 25°C + 10°C Lifetime’ <65%RH 100,000 or more hrs . * Definition of lifetime : the time up to occurrence of any of the following : + Contrast reduces to 30% of the initial value. + Current consumption becomes three times the initial value. + Orientation deteriorates significantly. +The display malfunctions. -4-

AN.NO.G52Z IE V-30UE

1.9 Dimensions

al General tolerance : + 0.5 mm(0.02inch) go, [Pegs oe a a FE] cl3 493 5/h-g 1B =| gle 2.5/.098 ry Ree + if Tg ] =| RIOR 039 ~ | O} 60.0 10.0/2.362 dll 5) 2) 5 ' LJ | ! =| 21 3 Z| . = one Te | 8| SI | ' i ® 8) 2) SI 320240 dot ts © a | 8 Nj x BES S.$/.217 45/177 FA 808 95.91/3.778 (Display area) (1.040) 2 3 a) 8] 2 x8 cS = a Se a a a af OO \\ - 3} 38) OO Components height rr 3} 3| coo é8 al 3 {VO Terminal Functions ] Figure 1 Dimensions ~ CN1 [Ne. [ Symbei [We [ Symbal | 1 | FLM _|One-frame timing signal | 8 | D2 _ | Display data input 2] om | NC(orliquid crystal ACdrive || 9 | Ds [Display data input control signal) Power supply voltage (1): +5 V (3 | ca | One-common-line timing signal [11] vss | GND:0V | 4 [ ci2 | Display data shift clock Vic | Power supply voltage (2) : | 5 | DaPOrF | Display ON/OFF control ul =24V inal** terminal : Vv Liquid crystal drive voltage [ 6 | Do _ | Display data input ° adjustment terminal [7 [0s [Display datainput * The Fenp terminal is connected to the module metal frame. Use this terminal to ground the frame. ** The display is on when DISPOFF is H, and off when L. CN2 . . CFLconnector: socket IL-G-35-$3C2 (JAE), socket contact IL-G-C2-SC-10000 ( JAE) Mating connector (board mount type): IP-G-3P-S3T2-E (straight type) (JAE) IL-G-3P-S3L2-E (right-angle type) (JAE) [We | Symbal Pa [va | black] Gnpt:0 v ec [3 | Var | Red | cFLbacklightdrivesignal * Not connected to Vss (GND) of CN1. -5-

2.1 Liquid Crystal Driving Circuit

The liquid crystal driving circuit using an M’ signal does not require an M signal to be input. liquid crystal driving circuit using a M signal. The frame frequency is normally set to 70Hz + 5% to prevent screen flicker. Figure 2. The size of the effective voltage of the waveform determines whether the liquid crystal under the selected dots is in the selection or non-selection state. “0”. In blue negative mode, the dot is white when the display data is “1” and blue when “0”.

AN.No.G321EV-560E SEG 1 frame 0 1 2 M j l J i? | | 1 —_ Va com . OM oy, | tI ,, 2 | | | ! a Ve i Vi Va wee —V, COM ; | wae _Ilf _ Ve | | Va wee — Ve SEG 9 we ——}— Ve Lye pO Vopr wee JL- 113Vopr -co ee — (selnctien waveform) | | | 7W13Vopr — -Vopr : 11/13Vopr see | L 1/13Vopr SEG ;-COM ; se — +1138 Vopr (Non-selection waveform) Wav - opr Figure 2 Drive Waveform -7-

AN.No.G321EV-560E

2.2 Circuit Structure

The G321E consists of common drivers, segment drivers, a bias voltage generation circuit, an M’ generation circuit and a Vop, control circuit. Figure 3 shows the block diagram for the G321E. When an Msignal is used instead of an M’ signal, the M signal is directly input to the segment drivers and the common drivers. . Dong ee eeeeeeeeeeeeeeeeeeeeeeeeesy H —y ' { a. a ee 9 ee i i _ = | H cl2_ re ' Cr a | AL NOL OU t DL DA DLA AV AVA ' : i M(NC) | M’gen- H H eraten Segment] | Segment Segment Segment]: 1 driver 1 driver 2 driver 3 driver 4 |i FLM__! ! Y 1 { H i 1 BIsPOFF! i t ' ' ' Common 1 Vp Serr 1 = t t t V 1 Common ' ' CX driver2 320x240 full dot-matrix LCD ' ' = { ‘Va Common ' Ve driver 3 H Vd Ve} | 1Var Vor Ver Ve ' ' Bias voltage ' +>] generation t ' circuit Common driver: HD66205( or MSM6598) ' H Segment driver: HD66204( or MSIM6599B) H ' i Voi} Vopr(Va- Vs) ' Vv H control H tet circuit ' H 1 { ' a 1 Figure 3 Block Diagram for G321E -8-

AN.No.G321EV-560E (1) Common driver (HITACHI HD66205 or OKI MSM6598) Acommon driver (CD) is a CMOS IC with 80 drive outputs. The G321E has three CDs, whose internal registers are connected to each other. They operate as follows. Input one-frame timing signal (FLM) is taken into the internal shift register by the falling edge trigger of the one-common-line timing signal (CL1), and sequentially shifted. After 240-CL1 input, the next FLM is input and the same operation is repeated. As shown in Table 2, the common output is selected according to the shift register contents and the internally-generated liquid crystal AC drive control signal (M’) in the drive circuit, and the common drive waveform are formed. Table 2 ee L x: Invalid The common output is controlled by the DISPOFF signal; when the DISPOFF signal is low, the common output is Va, irrespective of the shift register contents or the M’ signal. (2) Segment driver (HITACHI HD66204 or OKI MSM6599B) Asegment driver (SD) is a CMOS IC with 80 drive outputs. The G321E has four SDs, which operate as follows. Input four-bit data is sequentially taken into the internal register by the falling edge trigger of the display data shift clock (CL2). The SDs have a chip enable function. After 80 bits of data are taken into $D1, the next bit of data is automatically taken into SD2. Since G321E has four SDs, 320 bits of data can be taken. The display data taken into the internal register are latched by the falling edge trigger of CL1. The segment output is selected according to this display data and M’ in the drive circuit, and the segment drive waveform is formed as shown in the Table 3. Table 3 DISPOFF Displaydata, | = -M’——s|—_—_—SEGoutput a ee L x: Invalid -9-

AN.No.G321EV-560E (4) Bias voltage generation circuit Six voltage levels, Va to Vs, are applied to the common and segment drivers. The voltage is generated through operational amplifiers by resistance division from the liquid crystal operating voltage (Vopr). Here, an operational amplifier is used as a voltage follower. Vop o oO Va OR Cc] c ' = © Vb R c ' + 9 Ve c R: Cc ' PH 0 Ve R Operational fa 1 amplifiers O o Vt 1/13.1 bias : Ro= (13.1-4)Ry = 9.1 Ry Figure 6 Bias Voltage Generation Circuit (5) M’ generation circuit As Figure 7 shows, the M' generation circuit performs an XOR on the one-common-line timing signal (CL1) (on which A time division is performed) and the one-frame timing signal (FLM) (on which B time division is performed), and outputs liquid crystal AC drive control signal M’. Values A and B are set according to the LCD panel so that the best display quality can be obtained and the drive voltage can be changed. cli i A frequency i i divider A i divider : . Figure 7 M’ Generation Circuit -11-

AN.No.G321EV-560E

2.3 Timing Characteristics

2.3.1. Power ON/OFF and Signal Input Timing Power ON/OFF and signal input should be performed according to the timing shown in the figure below in order not to damage the LCD driving circuit and the LCD panel. Vp a5Vrerrn mens 5 GND Op nn nn nn nn nnn nn nnn nnn nnn nnn nn nn nnn nnn nena th th GND - en enn none nn neem nn nnn nn ewer nnn nownnnn nnn Vic " te te Inputsignais *°¥ GND ts te ND Atettetatatalalatetetetaeaianan tay DISPOFF GND (Rm mmm wn nnn nnn t;20ms, tz20ms, t3220ms Figure 8 Power ON/OFF and Signal Input Timing 2.3.2. Timing Characteristics Ta = 0°C to 50°C ~Vpp = 5.0Vt5% Vss = OV symbol [min [typ | Max | unit | Fun cycle time [cam [136 [43 | iso | om | -12-

AN.No.G321EV-560E

2.4 Interface Circuit

2.4.1 Interface with MPU signal

The G321E is controlled by the MPU circuit, whose interface is easily set up when the LCD controller is used. The LCD controller has basic functions such as receiving information related to the display from the MPU circuit, sending display timing signals and display data to the LCD module, as well as other functions such as cursor display. The G321E must use an LCD controller conforming to the following: © Fora full dot-matrix LCD module @ Where data is transferred to the LCD module in four-bit parallel @ Where G321E display screen has 1/240 duty The following section gives examples of interfaces using the Oki MSM6255GSK, Seiko Epson $ED1330F, and Hitachi HD64646FS controllers. -14-

AN.No.G321EV-560E (1) OKIMSM6255GSK MPU cS DIEN ; G321E ——— wr BPs] rim —. _ERMB. [mu _| Data D8o~DB, Perret bus Fa i fa {a2 _| | | (nln RDo~RD7 o+fe[ pb | up, 72] s. js{ oe | DIR Le] ca rom KE rag~ras | UP? I Sue | ae es PSH tt p12] Vic | _ Hist vo WE Display RAI R1= 18kQ R2= 3.9kQ it VR= 10kQ, IMAg~MAyg Address| Mo ' DC power supply +5V GND -24V Figure 11 Interface Circuit With MSM6255GSK Features of the MSM6255GSK: @ Interface with 80-series MPU possible @ Cursor "+ ON/OFF «Blinking speed, form, and position are programmable ® Scrolling and paging @ CMOS process @ 5-Vsingle power supply -15-

AN.No.G321EV-560E (2) SEIKO EPSON SED1330F MPU G321E D ee be [om _] ee 2 ra Ao P—st3{ cr _| Fe See (LL _ srr] data > ] Do~ D7 , bus x01 pS Bo | MPONPT mon p72 Fs To | jit] Vss | Display w rie RAM VRIW ct zr ve I = R1= 18kQ R2= 3.9k2 WAo~VAts VR= 10k DC power supply +5V GND -24V Figure 12 Interface Circuit With SED1330F Features of the SED1330F: @ Interface with 80-series or 68-series MPU possible © Built-in character generator ROM: 160 kinds @ £xternal character generator +CG RAM : (8x 16 dot matrix) x 64 kinds + CG ROM : (8x 16 dot matrix) x 256 kinds © Layered mode : AND, OR, XOR, “preferred” OR @ CMOS process © Scrolling (vertical and horizontal) @ 5-Vsingle power supply - 16 -

AN.No.G321EV-560E (3) HITACHI HD64646FS MPU HD64646FS pS Data RES G321E a bus S55 ,.” DBy~DB7 ft 7] Fm | va va STi err he, she, ee fi scuf>fwormnoiy > fs [BBP = meee <2 [9 [os | fees} mo-Mor ol Vos _| Dd. WE Ti Pa W Ss cs | {| CG ROM [+— | pag~Raa pet Mc | Li3] Vo | R1= 18k R2= 3.9kQ VR= 10kQ RS Address a, 4 A: bus Ap IMAg~MAy DC power supply +5V GND -24V Figure 13 Interface Circuit With HD64646FS Features of the HD64646FS: @ Interface with 80-series MPU possible © Character font @ Layered mode : OR (character and + Vertical : 1 to 32 dots graphics) + Horizontal : 8 dots © Character reverse, blinking, all black, all ®@ Scrolling white + Vertical : smooth or character unit © Cursor + Horizontal : character unit + ON/OFF © CMOS process + Blinking speed, form and position are @ 5-V single power supply programmable -17-

AN.No.G321EV-560E 3. CFL BACKLIGHTING The G321E has a built-in CFL (cold cathode fluorescent lamp) backlight. A CFL inverter is not built in, so use the recommended CFL inverter.

3.1 Absolute Maximum Ratings

Ta= 25°C 2000 ma. | tampeurrent | tL | tomax | mars | [| Frequency | fe [tome ke

3.2 Electrical Characteristics

Taz2se | 240 | 270 | 300 | View | [tempeurent® | ta | Te=2se | 28 | 31 | 34 [marms| [_Frequeney» | fm | Tanase | a1 | 47 | 53 | wre | Starting voltage™*™ | Vs | Tazoc | - | - | 650 | vies | * — CFLinverter : INVC 303 (HITACHI) Inverter input voltage : Viy = 24.0 V ** With the rise in voltage between the CFL terminals, the glow discharge is generated at the CFL electrodes, and CFL lights as this discharge grows. The starting voltage is the voltage at which the light has become stable and maintainable.

3.3 Brightness

Brightness and the starting voltage of CFL change according to the ambient temperature. This is because the radiation efficiency of the mercury in the CFL lamp varies depending on the vapor pressure. Particularly, the brightness decreases at low temperatures. Brightness is also low immediately after CFL power-on, since the vapor pressure of the mercury is low. Brightness increases gradually with increasing mercury vapor pressure, as the CFL lamp generates heat and thus the lamp wall temperature rises. Symbol Conditi LCD Standard Unit ymbol ‘onditions ni [in [oe [mm saee,.| * [steele [= [= [> (At the center of 30% to 85%RH | (black and white) the LCD surface) 30 min. after STN type 130 CFL power ON (blue) * CFLinverter : INVC303 (HITACHI) Inverter input voltage : Vin =24.0V LCD driving conditions : optimum Vopr, frim = 70 Hz LCD display pattern : All ON display (All data = “H”) ~ 18 -

AN.No.G321EV-560E

3.4 Service Life

• Time until the brightness decreases to half of the initial brightness, or time until the CFL is not lit because of the increase in CFL starting voltage. CFL driving conditions : IF_=3.1 mA rms

3.5 Connector for CFL Backlight

Connector for CFL backlight: Socket IL-G-3S-S3C2 (JAE) Contacts IL-G-C2-SC-10000 (JAE) ql 5] al RHE [Wor [ Sinal [Wirecolr | __funciow | a v, CFL backlight drive signal at IpL=3-1mArms, pL =47 kHz 1 3 * Not connected to the LCD driver ground Figure 14

3.6 Recommended CFL Inverter

3.6.1 Model name

INVC303 (HITACHI) 3.6.2. Absolute maximum ratings one [ents | " 2 = coaaron | ww (RETRO | + [| V Operating temperature No freezing or condensation | o | 0 | < | [sowartmpnaire | Tap [noreningoronaenaton [20 | «© | ~ | -19-

AN.No.G321EV-560E

3.6.3 Electrical characteristics

Ta=25°C | min. | typ. | max. | CFL: ON [13 [1s | 17 | ma | No load output = Oscillation frequency* 1 Vin=24.0V | a1 | 47 | 53 | kez | : «oti Vin = 24.0 V, Ta=0°C Starting characteristics Los ‘ n ‘i oad : CFL backlight unit at low temperature a BL-5/ASD(HITACHI) *1 Measurement circuit 1 *2 Measurement circuit 2 (1) Measurement circuit 1 (fru: oscillation frequency) (lin: power supply current) rey + (A) — Fut DC power ’ supply R:3.3kKQ sw cntt-2 3 +24V co 6 ® = Nt1-3 Inverter (Ig_: output current) + Measuring conditions @ Load: CFLO3-88EX57G/L(tube) for G321EV @ Output lead wires + Type: UL1015 - Length: #; = 200 mm, £2 + £3 = 200 mm + Connection : Lead wires should be connected to the CFL without being bound as shown above. @ CN11-2 terminal: GND: CFL is on, OPEN: CFL is off + Measuring instruments © Power supply current: Digital voltmeter TR-6853(TAKEDA RIKEN) or equivalent @ Output current: High-frequency AC ammeter 2016 class 1.0 (YEW) or equivalent @ Oscillation frequency: Multicounter 255(KIKUSUI) or equivalent Figure 15 Measurement Circuit 1 -20-

AN.No.G321EV-560E (2) Measurement circuit 2 - High-pressure + — 47 probe DC power supply r33kq. | (vo) 24V Synchroscope . cute Inverter + Measuring instruments @® No load output voltage: Synchroscope: IWATSU DS-6121A or equivalent High-pressure probe: IWATSU HV-P30 or equivalent Figure 16 Measurement Circuit 2

3.6.4 Temperature of transformer

| min. | typ. | max. | tassvcvm=zav | - | - [95 | cc |

3.6.5 Inverter connection diagram (INVC303)

+24V Ov IN Re O Vet Vet - So @ CONT INVC303 @ GND @Veu Veut * Connect a current-limiting resistor. Icont: 1.3 MA to 1.7 MA(1.5 mA typ.) Figure 17 Inverter Connection Diagram

3.6.6 Backlight ON/OFF control

The ON and OFF of the backlight is controlled using CONT pin; the backlight is on when CONT pin is connected to GND and off when CONT pin is open. -21-

AN.No.G321EV-560E

3.6.7 Dimensions

“ : o Unit: mm N11 cN12 Ra) ua 7 . 204.0 40.4 iy i $ Nb HN nd LET J 79.5205 43)| 2 8.0 max. . x x_ > sy & Sie ae ce i | er 2 o j 2 N a, ee ED ary a x — a e : CN 11: 175487-3(AMP) “os Mating connector : 173977-3(AMP) [Pino [signals] Functions [1 [| vw | Power supply voltage: +24 V Backlight on/off control | 2 | CONT ON: GND, OFF: OPEN [3 [eno [crounasov CN 12: IL-G-3P-S3L2-E(JAE) [PinNo. [Signals] Functions, | 1 | Va _| Output: GND a ee [3 | veu_| Output: high voltage Figure 18

3.6.8 Precautions in using the inverter

(1) As the output of the inverter is high voltage, never touch it. (2) When connecting the inverter to the CFL, the following must be considered to avoid stray capacity effects: + Do not twist together or tie the CFL connector cables. + Metal plates and metal foils, if located close to the CFL and its wiring, affect the brightness and the starting voltage of the CFL. + Connect the CFL connector directly to the inverter output connector. Do not use an extension cable. + Be aware of the proximity of other parts and the casing to the secondary wiring of the inverter, the potential of these parts may significantly affect the electrical characteristics and startability of the inverter. -~22-

AN.No.G321EV-560E (3) The transformer mounted on the inverter gets very hot; therefore, do not use the inverter ina closed, small space. (4) Always use AWG No.26 or thicker wire on the input side of the inverter. (5) Make sure that the fluctuating load caused by use of the inverter does not turn into a fluctuation of voltage and affect the other circuits.

3.7 CFL Backlight Replacement Procedures

The G321EV backlight is structured so that the lamp holder and the light guide can be divided, making it possible for the lamp holder with a built-in lamp to be replaced without disassembling the module. The CFL backlight replacement procedures are as follows: CAUTION: Always turn off the power before replacing any parts because the inverter operates at high voltage. Also do not force any of the parts around the base of the lamp cable when moving it. While holding the mold of the lamp cable at the base with your finger, loosen and adjust the other the parts. (1) Turn off the power. (2) Remove the lamp cable from the backlight power supply of the inverter. (3) Loosen the cable that is secured by the hook on the lamp holder. (4) Remove the two plastic rivets that secure the lamp holder to the circuit board. Push on the tip of the rivets to loosen them, and then pul! them out. Because the rivets are made up of two pieces that come apart when you remove them from the circuit board, take precautions not to lose any part of the rivets. (5) The lamp holder is clamped on to the light guide in two places. While holding the board with your fingers so it does not move, first, wedge a flat-head screwdriver into the space between the board and one end of the lamp holder; next, very gently pry it loose (do not force it) from the fittings (Fig.19) ; then, repeat the procedure on the other end; and remove the lamp holder (Fig.20). ta Ww Ka ELF”, a “xm pnoider / \\ po5 . Z oS Lamp holder Figure 19 a g . S <a KOH we Sed C.. IWR LFF_—6. pce Ng gid Figure 20 -23-

AN.No.G321EV-560E (6) Loosen the cable of the replacement lamp so that it is easy to slip around the board. Because the cable is held tightly by the hook, pull it through the loop and loosen it. (7) Loop both wires around the board and through the notches so that the plug is under the board. (8) Doing one side at a time, align the clamps of the lamp holder with the notches on the light guide and snap on the lamp holder (Fig.21). If the light guide moved when you removed the lamp holder and you are unable to locate the notches it, slightly slide the light guide up to reveal the notches. “~~ a a SS a SS S S SS SS Lge AS > LEE Zz SS LO LE & Y LZ 7 j}) Lamp cable UES rivet Ree Lamp holder ~\\ pee Figure 21 (9) _Reinsert both plastic rivets in their original positions in the following order: bush then pin. If any of the holes on either of the parts are unaligned, then move the lamp holder to align the holes. (10) Take up the slack on the lamp cable that goes through the notches on the circuit board and back through the hook of the lamp holder, and return it to its original position. -24-

AN.No.G321EV-560E 4. NOTES Safety + Ifthe LCD panel is damaged, be careful not to get the liquid crystal in your mouth and not to be injured by crushed glasses. + Ifyou should swallow the liquid crystal, first, wash your mouth thoroughly with water, then, drink a lot of water and induce vomiting; and then, consult a physician. + Ifthe liquid crystal should get in your eye, flush your eye with running water for at least fifteen minutes. + Ifthe liquid crystal touches your skin or clothes, remove it and wash the affected part of your skin or clothes with soap and running water. + High voltage is present between CFL electrodes. To prevent electric shock, do not touch the wiring while the power is on. Be sure to turn the power off when connecting or disconnecting the connector. + Use the LCD module within the rated voltage to prevent overheating and/or damage. Also, take steps to ensure that the connector dose not come off. Handling + Avoid static electricity, as this can damage the CMOS LSI. + The LCD panel is made of plate glass; do not hit or press against it. + Donot remove the panel or frame from the module. + The polarizer on the display is very fragile; handle it very carefully. Mounting and Design + Mount the module using the specified installation sections and holes. + To protect the module from external pressure, put a plate of transparent material such as acrylic or glass over the display surface, frame, and polarizer. Leave a small gap between the transparent plate and the module. yrExample Small gap Transparent plate 7 = ——S 5 ay Screw + Keep the module dry. Condensation can damage the transparent electrodes. + Ifthe CFL lamp and its wiring are located close to a metal plate or metal foil, the stray capacity will cause the voltage to fall, which will decrease the brightness and increase the starting voltage. Be careful in designing the casing and the CFL wiring. -25-

AN.No.G321EV-560E Storage + Store the module in a dark place where the temperature is 25°C + 10°C and the humidity is below 65% RH. + Do not store the module near organic solvents or corrosive gases. + Donot crush, shake, or jar the module or its components. + Black or white air-bubbles may be produced if the module is stored for a long time in the lower temperature or mechanical shocks are applied onto the module. Cleaning + Do not wipe the polarizer with a dry cloth, as it may scratch the surface. + Wipe the module gently with a soft cloth soaked with a petroleum benzine. + Donot use ketonic solvents (ketone and acetone) or aromatic solvents (toluene and xylene), as they may damage the polarizer. - 26-

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Seiko Instruments Inc. Head Office Components Sales Department 1-8, Nakase, Mihama-ku, Chiba-shi, Chiba 261, Japan Phone: 043-211-1216 FAX: 043-211-8035 Seiko Instruments U.S.A. Inc. Electronic Components Division 2990 W. Lomita Bivd., Torrance Calif. 90505, USA Phone: 310-517-7770 FAX: 310-517-7792 Seiko Instruments GmbH Siemensstrasse 9b, 63263 Neu-isenburg, Germany Phone: 49-6102-297-0 FAX: 49-6102-297-222 Seiko Instruments (H.K.) Ltd. Sales Division 4-S/F, Wyler Centre 2, 200 Tai Lin Pai Road, Kwai Chung, N.T., Kowloon, Hong Kong Phone: 852-24218611 FAX: 852-24805479. Seiko Instruments Taiwan Inc. Phone: 886-2-563-5001 FAX: 886-2-521-9519 Seiko Instruments Singapore Pte. Ltd 2, Marsiling Lane Woodland New Town Singapore 2573 Phone: 65-2691370 FAX: 65-2699729