Hero-Jr Adjustment Guide

The following adjustment procedure will allow you to achieve optimum performance of the sound and light sensing, voice volume and pitch, and time-keeping of the clock. You may want to perform only those adjustments for a function that appears to need it, or you may want to go through all of the adjustments to further familiarize yourself with the operation and capabilities of HERO Jr.

Sense
Sound
Light
Speech
Time
Direction

SENSE

Depending on the sound and light levels that HERO Jr. is exposed to, you may wish to change the setting of the controls that affect the sensitivity of the sensing devices. Pictorial 5-1 (Illustration Booklet, Page 24) shows the location of the controls used in the following adjustments.
Be sure the SLEEP-NORM switch is in the NORM position. Then press the RESET key. Within a few seconds, you should hear ready" from the Robot's speaker.

SOUND

While you hold down the Robot's ENTER key, press and release the 0 key. The Robot will say: "Robot Wizard."
Enter F95D on the Robot's keyboard and press ENTER. Then adjust SOUND LEVEL control R337. As you adjust the control, make a constant monotone sound. The LEDs on top of the Robot will flash, counting in hexadecimal (which is a number system with a base of 16). As more LEDs light, the Robot's sound sensor will become more sensitive and respond to quieter and quieter sounds. Do not set the control so that all the LEDs are on; set it so only about half of them are on (or just ordinary room noises will make it respond).
Press the RESET key.

LIGHT

While you hold down the Robot's ENTER key, press and release the 0 key. the Robot will say: "Robot Wizard."
Enter F952 on the Robot's keyboard and press R349. As you adjust the control, place a finger ENTER. Then adjust LIGHT LEVEL control R349. As you adjust the control, place a finger against the light sensor to block out most of the light. The LEDs on top of the Robot will flash (counting in hexadecimal). As more LEDs light, the Robot's light sensor will become more sensitive and respond to dimmer and dimmer light.
When you have the control set to a position that you want to try, press RESET.

SPEECH

You can adjust HERO Jr's pitch from baritone to soprano, and the volume from a whisper to a shout.

With the POWER OFF-ON switch in the ON position, press the RESET key. Within a few seconds, you should hear "ready" from HERO Jr's speaker.
As HERO Jr. proceeds through its phases, enter 7 (SPEAK) on the keyboard; then enter 0 twice. Adjust PITCH control R224 for the pitch you prefer and VOLUME control R234 for your desired listening level.

NOTE: The proper setting of each of these controls is determined by your personal preference; however, others may have less difficulty understanding the Robot if the speech is a slow, rich baritone.

TIME

NOTE: Perform the steps in this section of your Manual only if your Robot does not keep time satisfactorily.
If you have a frequency counter, you can accurately set the timer with a single adjustment. Otherwise, you can set the time with a known standard and compare every day, adjusting for fast or slow time as needed.

Make sure the POWER OFF-ON switch is in the OFF position.
Disconnect socket S205 from the CPU circuit board; disconnect sockets S303, S305, and S306 from the power/sense circuit board. Then set the head aside temporarily.
Remove and set aside the four 4-40 x 1/4' screws that secure the power/sense circuit board to the four spacers below it.

FREQUENCY COUNTER METHOD

Place the POWER OFF-ON switch in the ON position.
Make sure the SLEEP-NORM switch is in the NORM position.
Connect your frequency counter to pin 2 of integrated circuit U213 on the CPU circuit board.
Adjust OSC TRIM capacitor C228 for a reading of 32.768 KHz +- .001 KHz on the counter.
Disconnect the counter from the CPU circuit board.
Reinstall the power/sense circuit board on the four spacers. Then position the head assembly above the chassis assembly, and reconnect the four sockets that you previously disconnected from the circuit boards.

TIME STANDARD METHOD

Place the POWER OFF-ON switch in the ON position.
Make sure the SLEEP-NORM switch is in the NORM position.
Preset OSC TRIM capacitor C228 with its slot horizontally. Be sure the metal drop on the capacitor is positioned as shown in the inset drawing
Enter RESET on the keyboard. After a short pause, HERO Jr should say "ready."
Enter 7 (SPEAK) on the keyboard. HERO Jr. should say: " Enter two digits for a selection."
Enter 01 on the keyboard. HERO Jr. should respond with the current clay of the week, month, date. year, and time in hours and minutes (AM or PM). Example: "It's Wednesday February 29, 1984 - 8:45 PM."
After at least 24 hours, repeat steps 1, 2, 4, 5, and 6. HERO Jr. will then give you its current time. If the clock has gained time, adjust OSC TRIM capacitor C228 slightly counter-clockwise. If the clock is slow , adjust the capacitor slightly clockwise.
Check the clock against a known time standard every 24 or more hours. Readjust C228 as necessary until the clock keeps reasonably accurate time.

DIRECTION

If you notice that your Robot is not traveling in a straight line as he moves on a level surface, refer to Pictorial 1-5 and use the following procedure to improve this condition:

If the Robot is veering to the right, carefully bend the left contact spring a small amount away from the hex spacer. Then check and see if the Robot is following a reasonably straight line.
If the Robot is veering to the left, carefully bend the left contact spring a small amount towards the hex spacer. Then check and see if the Robot is following a reasonably straight line
Continue to bend the left spring, as necessary, until you obtain a satisfactory result.

NOTE: Because several possible forces may act upon the Robot, and in turn determine how straight the traveled path is, this adjustment will probably only correct some of the error you detected.