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A2300 GENLOCK Technical Specifications
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Amiga Technical A2300 GENLOCK Technical Specifications a

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A2300 GENLOCK
TECHNICAL SPECIFICATIONS
(NTSC)
V___________________________________________________ J
z. co m m o d o re
COMPUTERS
J
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
(NTSC)
AUGUST, 1988 PN-314871-01
Commodore Business Machines, Inc.
1200 Wilson Drive, West Chester, Pennsylvania 19380 U.S.A.
Commodore makes no express or implied warran ties with regard to the information contained here in. The information is made available solely on an as is basis, and the entire risk as to completeness, reli ability, and accuracy is w ith the user. Commodore shall not be liable for any damages in connection with the use of the information contained herein. The listing of any available replacement part herein does not constitute in any case a recommendation, warranty or guaranty as to quality or suitability of such replacement part. Reproduction or use w ith out express permission, of editorial or pictorial con tent, in any matter is prohibited.
This manual contains copyrighted and proprietary information. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permis sion of Commodore Electronics Limited.
Copyright © 1988 by Commodore Electronics Limited. All rights reserved.
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
TABLE OF CONTENTS
TITLE PAGE
TECHNICAL SPECIFICATIONS......................................................................................... 1
COMPONENT FUNCTIONS.............................................................................................. 4
CONNECTOR PINOUTS..................................................................................................... 6
ELECTRICAL CHARACTERISTICS.................................................................................. 8
ADJUSTMENT PROCEDURES......................................................................................... 9
COMPONENT PARTS LIST.............................................................................................. 11
PCB OUTLINE (NTSC)........................................................................................................ 14
SCHEMATIC DIAGRAM (NTSC)....................................................................................... 16
Technical Specifications
These specifications apply to both Models A2300 (NTSC) and A2301 (PAL) unless otherwise noted. If there is a difference between the two models, the specifications for Model A2301 will be in italics and enclosed in parentheses.
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
Theory of Operation
When the Genlock is attached to the Amiga 2000 computer, the system clock for the A2000 comes from the 28MHz VCO (Volt age controlled oscillator) on the Genlock unit. During the pow- er-up sequence, the A2000's Kickstart configures the computer into an external synch mode. The Genlock unit extracts the horizontal and vertical timing information from the external source video and resets the horizontal and vertical counters of the computer so that the computer video is synched to the external video. When the external video source is removed, the computer is self-synchronized.
The Genlock also allows for video overlay of the computer graphics over the source video. The incoming composite video is decoded into RGB components, and the computer's RGB is keyed in over the external video RGB. The combined video signal then goes to the RGB output to drive an RGB monitor. It also goes to a color encoder to drive a composite video monitor or VCR.
The major system blocks of the Genlock unit are:
1) VCO and horizontal beam counter
2) Synch separator and detector
3) PLL (Phased locked loop)
4) Synch generator, color decoder timing generator, and horizontal and vertical reset generator
5) Color decoder
6) Color encoder and video overlay circuit
1. VCO and Horizontal Beam Counter
The VCO consists of TR2 and associated circuits. TR2 and varac
tor are the active elements of the 28.63636MHz (28.37516MHz/
PAL) oscillator. The frequency changes approximately ± 1MHz
1
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
as the VCO control voltage is varied +2/-3V around the 3.0V nominal operating point. The error voltage corresponds to the difference in phase between the horizontal synch of the source video and the computer. When they are in phase the oscillator is sitting at 28.63636MHz (28.37516MHz).
The horizontal beam counter consists of divide-by-four pres caler, IC5 and IC8, and divide-by-455 (453/PAL) counter, IC2,
IC3, IC4, and IC5. The 3.58MHz (3.54MHz) clock from the com puter is used to generate the 7.16MHz (7.08MHz) prescaler output, so that it has a known time relation to the color clock of the computer. This insures that the horizontal reset signal, which is derived from the H-drive, has proper set-up and hold times when sampled by the computer's color clock.
2. Synch Separator and Detector
The source video synch separator consists of TR1 and associated components. The detected composite synch goes to the rest of the board and to the external synch detector, IC13. If there are external synch missing, the synch detector circuit switches the synch source of the Genlock to the A2000, so that the computer will be self-synchronized.
3. Phased Locked Loop
The phased locked loop consists of the VCO, horizontal beam counter, and phase comparator (sample-hold and analog switch circuit for NTSC; sample-hold and voltage comparator circuit for PAL). The basic theory of the operation of the PLL is to convert the relative position of the horizontal synch of the source video and horizontal drive signal to an error voltage to control the VCO. (The horizontal drive signal mirrors the horizontal synch of the A2000.) When the PLL is locked, the burst-flag is active during the proper portion of the horizontal drive. During the off time, the voltage is pulled down to OVdc to cut off the IC10. When the PLL is locked, pin 3 of the IC10 will be at 3V.
4. Synch Generator, Color Decoder Timing Generator, and Hori zontal and Vertical Reset Generator
The horizontal synch separator, IC9, C34, and R39, triggers the leading edge of the composite synch generator. The output of
the IC9 goes to the vertical synch separator circuit and to 1/2 IC11 which recreates the 4.8|xsec horizontal sync for the RGB connector.
2
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
The horizontal reset circuit consists of IC5 and the horizontal counter. The reset signal occurs on the alternate cycle of the horizontal beam counter. A 32fxsec/NTSC (0.55\x.sedPAL) reset pulse is sent to the computer at the beginning of every other line.
The vertical synch separator consists of IC9, R40 and C33. The R40 and C33 have an integrator input which filters the vertical synch information from the composite synch.
The vertical reset pulse is generated on the odd fields to reset the vertical beam counter of the computer. The field detect circuit consists of IC12, C9 and R ll. The circuit is configured to detect odd fields and is connected to the vertical reset logic so
that the reset to the computer is sent on the odd field.
5. Color Decoder
Once the computer video is synched to the source video, the source video is decoded by the color decoder, IC14. All of the controls for IC14 are preselected with the exception of hue. (Hue does not apply for PAL.) The RGB output of IC14 goes to the color encoder, IC15.
6. Color Encoder and Video Overlay Circuit
The color encoder, IC15, takes the RGB outputs of the color decoder and converts it to NTSC or PAL composite signals. It also has the capability of switching an external RGB signal over
the decoded RGB signal. The composite output signal drives lVp-p into a 75 ohm load. The RGB output signal drives 0.6Vp-p into a 75 ohm load.
3
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
Component Functions
1. Variable components function
Location No.
Name
Function
VR1
BRIGHTNESS
Brightness control for external source video input.
VR 2 COLOR
Gain control of chroma ampli fier for external source input.
VR 3
FSC
To adjust free-running fre quency of color subcarrier.
VR4 HUE
HUE control. (Does not apply to PAL.)
VR 5
H-POSITION To adjust computer composite
synch timing.
VR 6
BURST BLANK To adjust burst blanking
during vertical interval.
L6 VCO To adjust PLL in range.
2. IC's function
Location No.
Name Function
IC 12
V7010 • Fundamental clock generator
for CPU PLL
• Phase detector for CPU main clock generator
• Field ID detector
IC 13
NJM2220
• External video signal detector by horizontal interval timing
IC 14
V7020
• Color decoder for external source video
IC 15
V7040 • Pixel switch
• Composite color encoder for external video and computer
• 75 ohm RGB and composite
video driver
4
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
Location No. Name
IC 8 IC 5
IC1 IC 2 IC 3 IC 4 IC 5
IC11 1/2 74LS221
IC11 1/2 74LS221
IC 10
74S74
3/4 74LS00
74LS30 74LS161 74LS161
74LS161
1/4 74LS00
74HC4066 • PLL select (computer or
Function
• PLL prescaler /divide by 8
• PLL count down/divide by 455 (453 for PAL)
• Horizontal reset pulse generator
• Computer H-sync phase shifter
• Horizontal sync width generator
genlock)
• Phase comparator and sample-hold
• Composite synch select
IC 7 74AC04
IC 6 74HC00 IC 9
3. Mode Switch Function
Computer Only: The Genlock system provides the computer
video signal. The CPU clock is generated by the V7010 funda mental clock generator and the PLL frequency multiplier. However, if external video is present, the Genlock system provides frame reset, horizontal reset, and the CPU clock. These are synchronized by the external source video timing.
Overlay Computer and Source: If an external video source is not
provided, the computer is self-synchronized. If external vid eo is present, the Genlock system provides frame reset, hori zontal reset, and the CPU clock. These are synchronized by the external source video timing.
74HC14 • Composite synch driver
• Clock amp
• Clock driver
• Horizontal-drive current amp
• Genlock mode selector
• Horizontal synch separator
• Vertical synch separator
Source Video Only: The Genlock system provides the external
video source only to the RGB and composite video outputs.
5
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
Connectors
1. Interface connector (to the computer)
N o.
Signal
In/O ut
Fun ction
1
N C No connection
2
N C N o connection
3
L. AU D IO IN
IN N o use
4
R. AUDIO IN
IN N o use
5 N C
No connectio n
6
+ 5V IN
+ 5V d c input
7
R
IN Red video input
8 + 5V
IN
+ 5V dc input
9 GN D
Signal g ro u nd
10 + 12V
IN + 12V dc input
11
G IN
G reen video input
12 GND
, . .
Signal ground
13 GND
. . .
Signal ground
14
C IN Digital com posite synch
15 B
IN
Blue video input
16
XC L K EN
OU T
Extern al clock enable ou tput
17
GN D
. . .
Signal g round
18 BB S T
IN N o use
19 C4
IN N o use
20 GN D
. . .
Signal g round
21
GN D
. . .
Signal ground
22
HSV
OU T H orizo n tal reset output
23
DI
IN
No use
24
GN D
. , .
Signal g rou n d
25 DB
IN
No use
26
VSY OU T
Vertical reset o utput
27
DG
IN
No use
28 QSY
IN
No use
29 DR
IN No use
30 ZD
IN Pixel switch in put
31 ±5 V
IN
No use
32
GN D
. . .
Signal g round
33 XCL K OU T
28M H z clock output
34
Cl
IN 3 .5 8 M H z clock in p ut
(3.54M H z/P A L)
35
N C
No connectio n
36 NC
No connectio n
36 2 COMPONENTS SIDE 35 1 SOLDER SIDE
6
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
2. Male 23-pin "D" type connector
No.
Signal
1
No connection
2
No connection 3 Red video input 4
Green video input 5 Blue video input 6
No connection 7 No connection 8
No connection 9 No connection
10 Composite sync output 11
Horizontal sync output
12
Vertical sync output
13
No connection
14 No connection 15
No connection
16
Signal ground
17 Signal ground 18
Signal ground
19
Signal ground
20
Signal ground
21
No connection
22
No connection
23
No connection
7
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
Electrical Characteristics
Characteristics Jack Pin
Min
Typ Max Units
Supply current 5V
CN4
6, 8
mA
Supply current 12V CN4
10
mA
RGB input
CN4
7,11,15
700
mVp-p RGB input impedance 75 ohm C-synch V(IH)
CN4
14 2.0
Vdc
C-synch V(IL) 0.8
Vdc
Cl-clock V(IH)
CN4 34 2.0
Vdc
Cl-clock V(IL)
0.8
Vdc
28MHz V(OH)
CN4 33 2.0
Vdc
28MHz V(OL) 0.4
Vdc
H-reset V(OH) -800uA CN4 22
2.4
Vdc
H-reset V(OL) 16mA
0.4 Vdc
V-reset V(OH) -800uA
CN4 26
2.4
Vdc
Vrreset V(OL) 16mA
0.4
Vdc
RGB output impedance
CN1
3, 4 ,5
75
ohm
RGB output signal 700
mVp-p
C-synch V(OH) - 12mA CN1
10
2.4 Vdc C-synch V(OL) 12mA 0.4 Vdc H-synch V(OH) - 12mA CN1 11 2.4 Vdc H-synch V(OL) 12mA 0.4 Vdc V-synch V(OH) - 12mA CN1 12 2.4 Vdc V-synch V(OL) 12mA
0.4 Vdc
Video input impedance
CN2 75
ohm
Video input signal
1.0
Vp-p
Video output impedance
CN3
75 ohm
Video output signal
1.0
Vp-p
8
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
Adjustment Procedure
NOTE: THE A2300/2301 GENLOCK ADJUSTMENTS SHOULD
ONLY BE MADE BY QUALIFIED PERSONNEL USING CALI BRATED TEST EQUIPMENT. ATTEMPTS TO ADJUST THE A2300/2301 GENLOCK BY UNQUALIFIED PERSONS AND/OR FAILURE TO FOLLOW THE PROCEDURES OUTLINED HERE MAY RESULT IN UNSATISFACTORY PERFORMANCE OF THE GENLOCK UNIT AND/OR A2000 SYSTEM FAILURE. MALADJUSTMENT WILL NOT BE COVERED UNDER WAR RANTY SERVICE.
Required Test Equipment
LEADER LCG-396 PATTERN GENERATOR or equivalent (NTSC) LEADER LCG-396PAL PATTERN GENERATOR or equiv alent (PAL) HEWLETT PACKARD 5316-A FREQUENCY COUNTER or equivalent HITACHI V-1100 OSCILLOSCOPE or equivalent LEADER LVS-5850B VECTORSCOPE or equivalent (NTSC) LEADER LVS-5851A VECTORSCOPE or equivalent (PAL)
Checking Calibration of NTSC (PAL) Generator
Verify 1.0 volt peak-peak video output from NTSC (PAL) Pat tern Generator and chroma levels and Fig. 1 on oscilloscope display. Verify CHROMA phase angles and levels on vector-
scope display. Refer to test equipment operating manuals if
levels are incorrect.
Adjustment Controls
VR1 Video Output Level VR2 Chroma Output Level VR3 Sub-Carrier Free Run Frequency VR4 Chroma Phase Angle (TINT)—NTSC Only VR5 Computer Overlay Horizontal Position VR6 Burst Holdoff SW1 Genlock Mode Switch 3 Position
9
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
Adjustment Order
CONTRO L
INPUT MODE SWIT CH O U TPUT
ADJUSTMENT
VR3
n/a
COMPU TER ONLY COUN T ER NOT E 1
VR6 n/a COMPU TER ONLY
OSC ILLOSC O PE
NOTE 2
VR5
n/a
OVE RLAY
OSC IL LOSC OPE NOTE 3
VR1
GENER ATO R
EXT ERN A L O N LY OSC ILLOSC O PE N OTE 4
VR2 GENERAT OR
EXT ERN A L O N LY
VEC TOR SCO PE NOTE 5
VR4
GEN ERATOR EXTERNAL ONLY
VECTOR SCO PE
NOT E 6
NOTE 1: Sub-Carrier free run frequency adjust. Measure at C61
near pin 1 or 1C 14 while adjusting VR3. Be sure no external video is connected to the Genlock VIDEO IN.
NTSC 3.579545 MHZ ± 25 HZ PAL 4.433619 MHZ ± 25 HZ
NOTE 2: Burst Hold-off adjust. Monitor Vertical sync'd video output from Genlock and adjust VR6 for no burst in vertical sync area.
NOTE 3: Computer overlay horizontal adjust. Monitor line sync'd video output and adjust VR5 so computer video is cen tered on source video.
NOTE 4: Video output level adjust. Monitor line sync'd video output and adjust VR1 for 1.0 volt peak to peak (sync tip to 100% white).
NOTE 5: Chroma output level adjust. Monitor vectorscope for best match to IRE targets while adjusting VR2.
NOTE 6: Chroma phase angle adjust. (NTSC Only) Monitor vectorscope for best match to IRE targets while adjusting VR4.
BE SURE TO HAVE A PROPER 75 OHM LOAD ON THE VIDEO OUTPUT FOR ALL MEASUREMENTS. USE ONLY 75 OHM COAXIAL CABLE FOR INTER-CONNECTIONS.
10
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
COMPONENT PARTS LIST
PLEASE NOTE: Commodore part numbers are provided for reference only and do not indicate the availability of parts from Commodore. Industry standard
parts (Resistors, Capacitors, Connectors) should be secured locally. Approved cross-references for TTL chips, Transistors, etc. are available in manual form through the Service Department, order part #314000-01.
INTEGRATED CIRCUITS
RESISTORS (continued)
A2300 A2301
A2300
A2301
IC1 HD74LS30P HD74LS30P R33 2.2K0 IC2 HD74LS161P
HD74LS161P
R34
2.2KO
15K0
IC3
HD74LS161P
HD74LS161P
R35
15K0 3900
IC4 HD74LS161P
HD74LS161P
R36
3.9K0
IC5 HD74LSOOP
HD74LS00P
R37
8200
IC6 HD74LS00P
HD74HC00P
R38
1.8K0
IC7
HD74AC04P HD74AC04P R39 1.8K0
1.5K0
IC8
HD74LS74P
HD74LS74P R40 1.5K0 4.7K0
IC9 HD74HC14P
HD74HC14P R41 4.7K0 22K0
IC10
TC74HC4066P TC74HC4066P R42 22K0 100KO
IC11 HD74LS221P HD74LS221P
R43
100KO
4.7K0
IC12
V7010 V7010 R44 4.7K0
680
IC13 NJM2220S NJM2220S
R45
680 4.7K0
IC14
V7020 V7020 R46 4.7K0 4700
IC15 V7040
V7040 R47 4700 10KO
IC16
NJM556D
NJM556D
R48
10KO
IC17 HA17805
HA17805 R49 1000
10K0
R50 10K0 10K0
RESISTORS — All are carbon 1/6 watt
R51
10KO
10K0
R52 10K0 6.2K0
A2300
A2301
R53
6.2K0
4700
R54 4700 680
R1 270 270
R55
680
680
R2 470
470
R56
680
680
R3 270 270
R57 680 680
R4
470
470
R58
680
1K0
R5 270 270
R59 1K0 10K0
R6
470
470
R60 1K0
R7 10KO
10KO
R61 1K0 1K0
R8
1M0
1M0
R62 1K0
10K0
R91
27K0 27K0
R63
10KO
1K0
R10 150K0 100K0
R64 1K0 2.2KO
R11
330K0
330K0
R65 2.7K0 75K0
R12 100K0 150KO
R66
750
27K0
R13
1000
1000
R67 22KO 10KO
R14 220K0
220KO
R68
10KO
R15
1K0
1K0
R69 11K0 2.2K0
R16
33K0
33K0
R70
2.2K0 2.2KO
R17 10K0 10KO
R71 2.2K0 75K0
R18 750 750
R72 62K0 47K0
R19
750
750
R73
47K0 4.7K0
R20 1K0
1K0
R74 4.7K0 47K0
R21
1K0 1K0
R75
47K0 47K0
R22 1K0
1K0
R76
47K0
4.7K0
R23 4700 4700
R77 4.7K0 1500
R24 390KO
390KO
R78 1500 1500
R25 180K0
180K0
R79 1500 1500
R26
3900
R80 1500 10KO
R27 1.5K0
1.5K0
R81
10K0
R28 1.8K0
1.8K0
R82 47K0 47K0
R29
22K0
22K0
R83 1K0 3.9K0
R30
2.2K0 2.2K0
R84 7.5K0
R31 1.2K0
1.2K0
R85 1K0
R32
6.2KO 6.2K0
1±1%
11
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
COMPONENT PARTS LIST (Continued)
DIODES
A2300 A2301
D1 1SS119 1SS119 D2 1SS119 1SS119 D3 1SS119 1SS119 D4 D5 D6 D7 D8 1SS106 D9 1SS106 D10 D11 1SS106 D12 D13 D14 1SS119 1SS119 D15 1SS106 1SS106
CAPACITORS
C1 C2 10pF C3 C4 100/tF 10V 100/tF 10V Alumi Elect C5 C6 C7 C8
C9 C10 C11 C12 5600pF 5600pF C13 1000pF C14 C15 C16 C17 C18 C19 1/tF 6.3V 1/tF 50V C20 0.01/tF 0.01/tF C21 0.047/tF C22 C23 0.47/tF 0.47/tF C24 C25 C26 C27 C28 0.47/tF 0.47/tF C29 0.1/tF C30 C31 47pF 47pF Ceramic C32 C33 0.022/tF 0.022/tF Plastic Film
1SS119 1SS119 1SV101 1SS106 1SS106
1SS119 1SS119
A2300 A2301
33pF 33pF Ceramic
0.02/tF 0.02/tF
0.1/tF
0.1/tF O.VF 0.1/tF
VF* 0.1/tF *Alumi Elect
0.1/tF 1/tF 50V
10/tF 50V
1/tF 50V
0.02/tF 0.02/tF
0.1/tF
0.047/tF 0.047/tF 1/tF 50V 1/tF 50V
0.1/tF O.VF
0.1/tF
470/tF 6.3V 470/tF 6.3V
22pF
1SV101 1SS106 1SS106
1SS106 1SS106
10pF
0.1/tF
0.1/tF
0.1/tF Plastic Film 10/tF 16V
1/tF 50V
1000pF
1/tF 50V
0.1/tF
0.047/tF
0.1/tF
0.01/tF
0.1/tF 22pF
0.01/tF
Ceramic Ceramic
Ceramic Ceramic Ceramic
Ceramic Alumi Elect
Alumi Elect Plastic Film Ceramic Alumi Elect Ceramic
Plastic Film
Plastic Film Alumi Elect Alumi Elect Plastic Film
Plastic Film Ceramic
Plastic Film Ceramic
Ceramic Alumi Elect
Plastic Film Ceramic Ceramic
Plastic Film
CAPACITORS (continued)
A2300 A2301
C34 2200pF 2200pF C35 1000pF 1000pF Ceramic C36 100/tF 10V 100/tF 10V Alumi Elect C37 0.047/tF 0.047/tF C38 47pF 47pF Ceramic C39 18pF 18pF Ceramic C40 18pF 18pF Ceramic C41 39pF 39pF Ceramic C42 39pF 39pF Ceramic C43 39pF 39pF Ceramic C44 C45 2200pF 2200pF Ceramic C46 100/tF 10V 100/tF 10V Alumi Elect C47 C48 470/tF 6.3V 470/tF 6.3V C49 470/tF 6.3V 470/tF 6.3V C50 470/tF 6.3V 470/tF 6.3V C51 470/tF 6.3V 470/tF 6.3V Alumi Elect C52 10/tF 16V 10/tF 16V C53 C54 C55 C56 C57 C58 C59 C60 C61 C62
C63 0.02/tF 0.02/tF C64 C65 0.02/tF 0.02/tF C66 0.02/tF C67 0.02/tF 0.02/tF C68 0.02/tF Ceramic C69 0.022/tF C70 0.022/tF 0.022/tF C71 C72 0.022/tF 0.022/tF C73 0.22/tF 0.22/tF Plastic Film C74 10/tF 16V 10/tF 16V C75 10/tF 16V 10/tF 16V C76 33pF 33pF C77
C781 C791 C801 C811 C821 C831 C841 C851
220pF Ceramic
0.02/tF 0.02/tF Ceramic
0.1/tF 0.1/tF O.VF 0.1/tF
0.1/tF 0.1/tF
0.1/tF 0.1/tF
0.1/tF 0.1/tF
0.1/tF 0.1/tF
0.1/tF 0.1/tF O.VF 0.1/tF
0.01/tF
0.02/tF 0.02/tF
0.02/tF 0.02/tF
2200pF
22/tF 16V 39pF* Alumi Elect
0.1/tF
0.1/tF
0.1/tF
0.1/tF
0.1/tF O.VF O.VF
0.1/tF
0.01/tF
0.02/tF
0.022/tF 2200pF
Ceramic
Plastic Film
Alumi Elect Alumi Elect Alumi Elect
Alumi Elect Ceramic Plastic Film Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Plastic Film Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic
Plastic Film Plastic Film Ceramic Plastic Film
Alumi Elect Alumi Elect Ceramic
‘Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic
1Low ESR Capacitor
12
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
COMPONENT PARTS LIST (Continued)
TRANSISTORS
A2300 A2301 A2300 A2301
TR1 2SA564 2SA564 TR2 TR3 TR4 2SC1684
MISCELLANEOUS
L1 L2 8.2/tH L3 L4 L5 L6 0.6;tH 0.6^H Oscillator Coil L7 1,2fiH DL1 DL2 400 nsec. 400 nsec. Delay Line DL3 63.943 sec. BPF1 3.58 MHz 4.43 MHz Band Pass
BPF2 VR1 5000 5000 Variable Res.
VR2 VR3 5000 5000 Variable Res. VR4 5K0 Variable Res. VR5 5K0 5K0 VR6 X1 3.579545 MHz 3.546895 MHz X2 3.579545 MHz 4.433619 MHz Crystal
2SC460 2SC460 2SC1684
A2300 A2301
% H 10*tH
600 nsec. 600 nsec. Delay Line
3.58 MHz 4.43 MHz
5000
10KO 10K0 Variable Res.
2SC1684 EM3 270pF 270pF 2SC1684
Axial Inductor
8.2mH
5000 Variable Res.
Axial Inductor Axial Inductor Axial Inductor
Delay Line Filter
Band Pass
Filter
Variable Res. Crystal
MISCELLANEOUS (continued)
EM1 270pF 270pF EM2 270pF
EM4 EM5 FBA04VA900NA-00 EM6 FBA04VA900NA-00 EM7 EM12 EM13 FBA04HA450NA-00 TC1 30pF 30 pF
RY1 RZ-5W-K RZ-5W-K Relay CN1
CN2 JPJ 1018 JPJ 1018 CN3 JPJ 1018 JPJ 1018 CN4
FBA04VA900NA-00 FBA04VA900NA-00 EMI Filter
FBA04HA450NA-00 FBA04HA450NA-00 EMI Filter FBA04HA450NA-00
CA-M59
270pF
FBA04VA900NA-00 EMI Filter FBA04VA900NA-00 EMI Filter
CA-M59 D-Sub
EMI Filter EMI Filter EMI Filter
EMI Filter EMI Filter Ceramic Trimmer Cap
Connector RCA Phono Jack RCA Phono Jack 6-Pin Header
13
f. /9 max
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
312805-01 PCB OUTLINE
Sheet 1 of 2
14
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
NO. C N 1
1
N C
2
N C
3 R
4
G
5
B
6
N C 7 N C 8
N C 9
N C
1 0
C - S Y N C
1 1
H
12
V
13
n e
14
N C
1 5
N C
16
G N D
1 7 G N D 1 8
G N D
1 9
G N D
20
G N D
21
N C
2 2
N C
2 3
N C
NO. C N 4
1
N C
2
N C
3
AUD IO ( L)
4
AU DIO ( R )
5
N C 6 + 5 V 7
R 8 + 5 V 9
G N D
1 0
+ 12 V
1 1
G
1 2
G N D
1 3
G N D
1 4
Z
1 5
B
1 6
Ex c L k e n
1 7
G N D
1 8
B BS T
19
C 4 20 G N D 21
G N D 2 2
H- S Y N G
2 3
D 1 2 4 G N D 2 5
D B 26
V - S Y N C
2 7
D G 2 8
C -SYN C
2 9
D R
3 0
Y S
31
- 5 V
3 2
G N D
3 3
■RC L K
3 4
T T 1
35
N C 36
N C
NO.
s w
1
P. C. MODE
2
OVER LAY MODE
3
SOURCE VIDEO MODE
C N 2
V ID EO IN
C N 3
V ID E O OU T
4
312805-01 PCB OUTLINE
Sheet 2 of 2
15
A2300 GENLOCK
TECHNICAL SPECIFICATIONS
16
COMPUTERS
Computer Systems Division
1200 Wilson Drive
West Chester, PA 19380
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