SHARP YO470
Service Manual

SERVICE MANUAL
CODE: 00ZYO470SM//E REPLACEMENT MODEL

**MODEL
D I S P L A Y S E C T I O N STANDARD FUNCTION 12 digits 1 M ELEMENT: FSTN LCD PARTS NAME: LD-N30279JY-1 NUMERAL: 19 digits (5 lines) 119 x 32 dot matrix liquid crystal display 19 columns x 5 KEY SYSTEM: Rubber key Electronic notebook section TEL mode SCHEDULE mode ANN mode CALENDAR mode

YO-470 ZQ-470/475**
Names, phone numbers, and addresses Dates, appointment times, and details of appointments Automatic day-forward function, schedule alarm function Dates and details of anniversaries Display of calendars from January 1901 to December 2099 Schedule mark function distinguishing between morning and afternoon appointments Anniversary mark function Everyday memos Items, priority assignment Expense date, amount and description 128 Kbytes (User area: Approx. 126 Kbytes) SCHEDULE mode capacity:Approx. 1990 entries TEL mode capacity:Approx. 3080 entries MEMO mode capacity:Approx. 920 entries � The approximate entry capacities above assume the following average entry sizes when all memory is used by a single mode. SCHEDULEDescription 32 characters/entry TELName 16 characters/entry Number 12 characters/entry MEMO128 characters/entry 512 characters Secret function, data transfer, index display

0.63 0.04

lines

(mm) 0.47 0.04

L CPU: LI35930L (178 pin-chip) S SRAM: TC551001CF-70L (32 pin) I POWER SUPPLY AC: X Main power supply: 6 VDC lithium batteries (CR2032 x 2) Memory backup power: 3 VDC lithium battery (CR2032 x 1)

MEMO mode TO DO mode EXPENSE mode Memory capacity DC: r

AC ADAPTOR RECHARGEABLE BATTERY POWER CONSUMPTION 0.1 W AUTO POWER OFF TIME Approx. 7 minutes MEMORY PROTECT Yes DIMENSIONS(mm) Open: 138(W) x 146(D) x 9.9(H) mm. Closed: 138(W) x 77.5(D) x 19.4(H) mm.

Maximum character string length per entry Other features Clock

Crystal oscillation frequency 32,768 Hz Clock precision Average variance ±60 seconds per month (at 25°C/77°F) Display contents year, month, day, day of week, hours, minutes, A.M./P.M., city names, time zone Time system 12-hour or 24-hour World clock function Display of date and time for the world�s cities Enable/disable control for daylight saving time display function Battery life Operating batteries

Weight 145 g (including batteries) CALCULATIONS Addition, subtraction, multiplication, division; constant, square root, percent, memory calculation, etc. (with currency conversion function)

� Approx. 1,200 hours
When data is continuously displayed without Backlight (at 25°C/77°F).

� Approx. 300 hours
When data is continuously displayed with Backlight for 2 minutes per hourly use (at 25°C/77°F).

Accessories Lithium batteries (CR2032 x 3: installed in the factory at the time of shipment) Operation manual

� Approx. 270 hours
When data is searched for 5 minutes, and displayed for 55 minutes per hourly use and Backlight is on for 2 minutes per hourly use (at 25°C/77°F).

� Approx. 1.5 years
When turned off, and the clock is running (at 25°C/77°F). Memory backup battery

� Approx. 5 years (if operating batteries are replaced promptly when exhausted) � Approx. 1 years (if operating batteries are exhausted or not installed)
Parts marked with "!" is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set. This document has been published to be used for after sales service only. KP The contents are subject to change without notice.

SHARP CORPORATION