Star Tech Journal
Issue: 1983-February - Vol 4 Issue 12 - Page 9
9
STAR*TECH JOURNAL/FEBRUARY 1983
ROCK-OLA
DIM FLUORESCENT DISPLAYS 476 TO 484
By Chuck Maier, Philadelphia, PA
Problem: Dimming of the "plays" and "Your Selection/Record Now Playing"
displays. This is due to increased contact resistance of connectors, causing a drop
in display filament voltage.
Correction: Apply following between the two filter buffer boards. Step # 1:
Solder jumper wire from solder pad of socket # 1 of J7B05 of upper board to
socket #12 of J7A04 of lower board. Step #2: Solder jumper wire from solder
pad of socket # 2 of J7B05 of upper board, to socket # 11 of J7 A04 of lower
board.
PRICE
CONVERSION
BREAKTHROUGH!
FOR ROWE
CIGARETTE
MACHINES
J7805
CJ
D
2
12
11
J7A04
• Will vend up to $1.75 in
increments of 5¢.
SEGA ELECTRONICS
* "TURBO" DISPLAY
INTERFACE PCB
* "TURBO"
SOLUTIONS
"Turbo-Mini" Interface PCB
There have been two models of video monitors employed in "Turbo-Mini", the
Electrohome model G07-902 (P.N. 200-0065), and the Nanao model CI-20014
(P.N. 200-0075). Please note that the RGB Interface Board (P.N. 834-0277),
located on the left-hand side of the cabinet (viewed from the rear compartment
door), although present in all games, is utilized only with the Electrohome
monitor. The Interface Board has been left in all cabinets in the event that an
Electrohome model is used in a future replacement.
"Turbo" Display Solutions
If you are experiencing moving white vertical bars over or at the location of
buildings and/or cars in the display, Sega recommends you perform the following
procedure:
1. Turn the game off and visually inspect the 16 (sixteen) lOOpf capacitors
located in the area ofU50, U51, U43, U44, and U45 on the PROM Board
(P.N. 834-0111 ). This is the bottom board of the stack, and the Component
Location Diagram can be found on page 112 of the "Turbo" Owner's Manual
(P.N. 420-0681). The PROM Board schematic is on page 143, Sheet 1 of 10,
Zone 4B-D.
2. You should be looking for a physical separation (splitting) of one or more of
these caps, primarily C21, C27 or C28. If a faulty capacitor is found, it should
be replaced with a lOOpf lKV ceramic cap (P.N. 151-0002) or equivalent.
3. If all the caps appear good, reassemble the game, turn it on, and while
watching the video display,adjust VRl and/or VR2 until the bars disappear.
These two potentiometers are bias level adjustments and as such may have to
be "tweaked" from time to time as the components in the circuit age.
• Same mechanical
dependability using your
present totalizer. No
electronic components.
• Accepts any combination of
nickels, dimes and quarters.
• 4-minute installation on
location OR
• Send us your totalizer - we
will convert it ($5.00 service
charge).
PRICE
REDUCED
$24.95(1n Lots of 10)
1 to 9 Units - $34.95 each
All orders shipped UPS/COD.
TELEPHONE:
516-928-6868
COIN UP-DATE
INDUSTRIES, INC.
14 Hulse Road
E. Setauket, NY 11733
STAR*TECH JOURNAL/FEBRUARY 1983
ROCK-OLA
DIM FLUORESCENT DISPLAYS 476 TO 484
By Chuck Maier, Philadelphia, PA
Problem: Dimming of the "plays" and "Your Selection/Record Now Playing"
displays. This is due to increased contact resistance of connectors, causing a drop
in display filament voltage.
Correction: Apply following between the two filter buffer boards. Step # 1:
Solder jumper wire from solder pad of socket # 1 of J7B05 of upper board to
socket #12 of J7A04 of lower board. Step #2: Solder jumper wire from solder
pad of socket # 2 of J7B05 of upper board, to socket # 11 of J7 A04 of lower
board.
PRICE
CONVERSION
BREAKTHROUGH!
FOR ROWE
CIGARETTE
MACHINES
J7805
CJ
D
2
12
11
J7A04
• Will vend up to $1.75 in
increments of 5¢.
SEGA ELECTRONICS
* "TURBO" DISPLAY
INTERFACE PCB
* "TURBO"
SOLUTIONS
"Turbo-Mini" Interface PCB
There have been two models of video monitors employed in "Turbo-Mini", the
Electrohome model G07-902 (P.N. 200-0065), and the Nanao model CI-20014
(P.N. 200-0075). Please note that the RGB Interface Board (P.N. 834-0277),
located on the left-hand side of the cabinet (viewed from the rear compartment
door), although present in all games, is utilized only with the Electrohome
monitor. The Interface Board has been left in all cabinets in the event that an
Electrohome model is used in a future replacement.
"Turbo" Display Solutions
If you are experiencing moving white vertical bars over or at the location of
buildings and/or cars in the display, Sega recommends you perform the following
procedure:
1. Turn the game off and visually inspect the 16 (sixteen) lOOpf capacitors
located in the area ofU50, U51, U43, U44, and U45 on the PROM Board
(P.N. 834-0111 ). This is the bottom board of the stack, and the Component
Location Diagram can be found on page 112 of the "Turbo" Owner's Manual
(P.N. 420-0681). The PROM Board schematic is on page 143, Sheet 1 of 10,
Zone 4B-D.
2. You should be looking for a physical separation (splitting) of one or more of
these caps, primarily C21, C27 or C28. If a faulty capacitor is found, it should
be replaced with a lOOpf lKV ceramic cap (P.N. 151-0002) or equivalent.
3. If all the caps appear good, reassemble the game, turn it on, and while
watching the video display,adjust VRl and/or VR2 until the bars disappear.
These two potentiometers are bias level adjustments and as such may have to
be "tweaked" from time to time as the components in the circuit age.
• Same mechanical
dependability using your
present totalizer. No
electronic components.
• Accepts any combination of
nickels, dimes and quarters.
• 4-minute installation on
location OR
• Send us your totalizer - we
will convert it ($5.00 service
charge).
PRICE
REDUCED
$24.95(1n Lots of 10)
1 to 9 Units - $34.95 each
All orders shipped UPS/COD.
TELEPHONE:
516-928-6868
COIN UP-DATE
INDUSTRIES, INC.
14 Hulse Road
E. Setauket, NY 11733
Future scanning projects are planned by the International Arcade Museum Library (IAML).