Star Tech Journal

STAR*TECH JOURNAL/SEPTEMBER 1982
16
GREMLIN/SEGA
"TURBO" NOTES:
* STEERING BOARD MODIFICATION* TYPO ERRORS IN MINI OWNER'S MANUAL
Steering Board Modification
In order to improve the reliability of the Steering Sensor Board (P.N. 834-0119), a simple modification has been
made to the PCB (P.N. 171-0065) as follows:
1. Remove R2 and R5.
2. Replace R2 and R5 with two 180 ohm¼ watt 5% resistors (P.N. 471-0181).
3. Cut the PCB clad at that point between the base of the transistors Ql and Q3, and the "top" of the resistors R2
and RS, as indicated in Fig. 1.
4. Add an additional set of resistors ( 180 ohm ¼ watt 5%) across the cuts made in the PCB, effectively putting each
resistor in series with the base of each transistor. Please correct page 124 of your Owner's Manual (P .N.
420-0681) to reflect the modification.
Cut
Cut
Figure 1
Typo Errors In Mini Owner's Manual
There have been two typographical errors
identified in the "TURBO'~Mini Owner's
Manual (P.N. 420-0765), page 83. Please correct
your Manual to reflect the following changes:
ITEM PART NO. on. DESCRIPTION REF DES
IC1
REMOVE 26 316-0124 1 IC M51848P
ADD
REMOVE
ADD
26
27
27
313-0124
316-0125
313-0125
1
IC M51848P
IC T1431CP
IC TL431 CP
IC1
IC2
IC2
D
D
A.P.E.
INTRODUCES LINE OF DESOLDERING SYSTEMS
AND CIRCUIT TRACK REPAIR KITS
Now available from A.P.E. (Automated Production Equipment
Corp.) are models EX-500, EX-550, and EX-525 for desoldering
printed circuit boards.
Models EX-500 and EX-525 are self-contained and utilize a
rotary and piston pump, respectively. Model EX-550 is pneumatic-
ally operated, utilizing a transducer to obtain vacuum. The air
supply is controlled via a solenoid.
All three units come complete with A.P.E. model EX-1000
desoldering handpiece with new improved heater and SCR controller.
Vacuum flow is foot-pedal operated on all units, leaving the
operator's hands free.
Models EX-500, EX-550, EX-525
0
Model SRS-050 printed circuit track repair kits are designed to
pay for themselves if just one PC assembly can be salvaged "on the
spot, in time." Deluxe Kit No. 25 70-1000 contains the components
and tools required for track repair: master frames with tracks,
fingers, pads, elbows and flatpack pads; three sizes of eyelets and
funnelets; a set of eyelet setting tools; a consumable replacement kit
(No. 2580-1394) with red and green bullets, acid brush, red and
gray abrasive sticks, epoxy set, mixing pad, spatulas, bottle of flux
and bottle of cleaner; a track tool set (No. 2590-1524) with two
shapes of tweezers, clamp, ball mills and knife set; and a deluxe tool
set (No. 2731-1012) with temperature-controlled pencil soldering
iron, and 5 shapes of pliers. Contact Automated Production
Equipment, 142 Peconic Ave., Medford, NY 11763. (516) 654-
1197. Prices of these kits range from $41 to $425.
Model SRS-050 Printed Circuit Track Repair Kit