Falco TS-1 Terminal
Section: Notes
Page: 1 Rendition: 2018 Nov 20
Quick Reference
• Port A is the communications port: female-DTE, pin-2 = data out, pin-3 = data in.
• Setup: See manual pg. 31,32.
• FCT-0 to enter setup.
• 0 for full setup display, 1-5 for sub-sections.
• SPACE=right, RETURN=down, LF=up, 0=off, 1=on.
• ? FCT-0 to save non-volatile, wait for bell ?.
• ESC to exit setup.
• Brightness adjustable with FCT-pad2 & FCT-pad8, 256 levels.
Notes
• Capacitance in microfarads unless otherwise indicated.
• Keyboard manufactured by Mechanical Enterprises.
• These drawings are based on a reverse engineering of unit with serial number 002833. Components in this unit are stamped with date codes in the range 8009 to 8139.
• 2 * 2732 EPROMS / V2.13.0 & V2.13.1 : firmware ROM 1 * EA 8316E517 / CROM003 : 2048*8 character ROM 1 * Z80 : CPU
1 * 6845 : CRT Controller 1 * 2651 : UART 6 * 2114 : RAMs
2 * NEC D444C : 1024*4 CMOS Static RAM for non-volatile memory.
Drawing Log
• 2012 May: Keyboard drawn / bhilpert.
• 2014 May: Video drawn / bh.
Unit Log
• 2012 Apr: Received.
• 2012 Apr: **NOTE** NiCd cells for non-volatile memory appear to be from 1993 (0993).
Might best be replaced with alkaline cells to avoid leaking problems.
• 2012 May: Keyboard does not function when first powered on. May start working some minutes after power-up.
Outputs from 4017 not correct, does not appear to be being reset. Soldering around reset circuit previously reworked, diode connection was open.
Diode replaced, and soldering redone, seems reliable. Bad 4017 other possibility if not.
• 2014 May: Horizontal width & linearity, and focus, adjusted to widen raster.
• 2014 May: Right side keys of numeric keypad not working.
Foil broken on PCB at U4.11, patched.
• 2014 Jun: 3 ROMs dumped.
• 2014 Jun: Qwerty-section ‘4’ key plunger broken in fall. Glued back on and plunger moved to numeric-pad “0”, which has two plungers. If glue fails, might try melting hot-wire into plastic for reinforcement.
Plunger/housing for RETURN key also noted to be worn, leaving key sloppy.
Plunger/housing swapped with SPACE key which has additional support from balancing bar.
3 1 UE14
3 1UG14
74LS157UF12 12 13
14
UG12 2651
UART 19
3
5 4
UH13 6 2 1
UH13 3 PortA
PortB PortA
PortB 1488
1489
74LS32 H13.9
RD TD
PORT / UART WIRING (partial) Single 2651 UART serves both ports
UF4 CROM003 EA8316E517 19
22
GND 9
10 11 D313 D2 D1 D0 1
2 3 4 5 6 7 8
14 15 16 D717 D6 D5 D4
12 20
18 24 21
UF1.5 UF1.4 UF1.3 UF1.2 UF1.14 UF1.12 UF1.11 UF1.10 UF5.4
UF5.7 UF5.9 UF5.12 UC7.9 UC7.6 UC7.5 UC7.2 UC7.12 23 UC7.15 UC7.16 UC8.15 UC8.14
A3 A2 A1 A0 A7 A6 A5 A4 A9 A8 CS nOE nCS A10
UC7 = 74LS273 UC8 = 74LS175 UF1 = 74LS166 UF5 = 74LS157 J5.3
J6.3
13 J5.2 12
UF14 11
13 J6.2 12
UH14 11
1N4752 33V V+12
3.3 250V N106.7
220K
1K 1K
V+12F J106.1
V–13
J103.7
wh rd
Q2 2N3053
4 of 3.3K 1
2 4 3
47 100V 2 of 0.01 1KV
15K 4.5M BRT
J106.2 J106.3
1.8M 0.01 1.5KV GAP
10K
1 6 7
2 J103.6 0.01
1KV 10K
yl J103.1 J103.4
og 0.001
1KV 500K 10K
FOCUS
220
Q1 2N3904
33 10
390pF 4.7 103
25V
500 CONT Q7
BU807 7 6 5
220 103 25V 0.47 1W
470 16V
J106.8
1.8 1W 0.027
400V 10 500V
2K 102
J102.5 bu
J102.4 rd
J106.6 HORIZONTAL SWEEP 19.2KHZ TDA1180P V+12F 3A
J106.5 J3.7
J3.1
J3.6 J3.5
J3.8
J106.9 VERICAL SWEEP
60HZ TDA1170S J3.9
gn J105 J102.1
bn
J102.2 yl
J106.10 J3.10
Q3 2N2222
220 100 104 47 16V V–13
470 75
J2.?
V+12 100
220 220 Q- 2N2222
V+12
5 U? 6 J1.3
J1.2
4 3 U?
3
2 U? 6
741 4 7 V+12
V–13 4.7K
J2.?
8
DAC-08CN 4
Falco TS-1 Terminal
Section: Video (partial)
Page: 2 Rendition: 2018 Nov 20
Q106 2N3906 220
2.2K
2.2 16V 2 of NiCd 1.2V
J1.7 V+bat
J1.1 V+12 V+12
J1.6 V–13 Power Supply
Board
Logic Board
Video Board
V+12F V+12
+42V
–130V +430V
+360V
+260V
–19V J106.4
HLIN HWID 4.7K
102 3.3K
pin10
Ball BCX200 7-030-0102C 3
4 bk J103.3
bn J103.5 V+12
12 13
U? 11
4.7 35V 2 of
104
47 16V
47 16V
Tranex [obscured]
8134 Q2
PN2222 330 560
6 5 UH2
1.2K V+12
7406 4.7 35V UC2.26
Z80 UD7
? UD8 9
18
NEC D444C 1024*4 CMOS
Static RAM
2
U12 75423 1
6 7 2
U8 75423 1
3 100
6 7
5 CLK-ADDR
0.005
220 pF 10K 4.7K
1K 3.9K 180
3
5 0.01
10 1K
10K
dummy loop
+5V 6 of
0.01
KEYPRESSED
CLK-ADDR is a self-clocking data stream containing the matrix address of a key.
When addressed, the state of the key is returned on the KEYPRESSED line.
Positive edges of CLK-ADDR are the bit-clock, address bits are represented by the state of CLK-ADDR at a time after the clock edge.
The keyboard matrix is composed of 10 drive loops and 9 sense loops.
Drive loops run along the key columns and have 9 key-positions / loop.
Sense loops run along the key rows and have 10 key-positions / loop.
One drive loop and one sense loop are short one key position, and 13 key-positions do not have keys, leaving 74 actual keys.
Falco TS-1 Terminal
Section: Keyboard
Page: 3 Rendition: 2018 Nov 20
4 U3 74123
?µS Q13 3 R nQ
2 1
14 15 30K
U3 74123
?µS Q5
nQ 12 11 R 10 9
6 7 15K
10B2 11
U6 74151
Y5 nY 6 B1 9B4 7 nSTB
3D1 4D0
2D2 1D3
14D5 15D4
13D6 12D7
14B2 15
U4 7442
Y0 1 Y1 2 Y2 3 Y3 4 Y4 5 Y5 6 Y6 7 Y7 9 Y8 10 Y9 11 B1 13B4 12B8
4 nS U7
7474 Q5
nQ 6 3D
Cp 2
1 nR 10 nS U7
7474 Q9
nQ 8 11D
Cp 12
13 nR
2 B 1
74164U5 Q03 Q14 Q25 Q36 Q410 Q511 Q612 Q713 A 8 Cp 9 nMR
13 DIS 14
U1 4017
Q03 Q12 Q24 Q37 Q410 Q51 Q65 Q76 Cp
15 MR
Q89 Q911 CO12
U9 - U11 U1,3,4,6
8 16
U8-12 75423
4 8 U5,7
7 14
100 0.01
1K H L
C
Pulse transformers have 2 transformers per core.
Ex. dummy position
?
?V
