VCP-2002 Video Copy Processor

for DVD, S-VHS and VHS

Due to lack of standards, the muddled situation regarding copy protection and the relatively high price, buying a DVD recorder is not yet recommended. Analogue video recorders are sure to fill this gap for quite some time to come. However, they can only be used for tape-to-tape or DVD-to-tape copying if certain interference signals are removed.Analogue picture recording is slowly but gradually being replaced by its all-digital equivalent. We should emphasize ‘slowly’ because the changeover is hampered by the cost of DVD recorders, blank DVD disks and the insecurity about recording formats to be adopted worldwide. It would be gross mistake to claim that analogue video recording is dead, on the contrary! Excellent S-VHS recorders can be bought for around £ 150 and even if you take into account the slightly higher cost of tapes, the total cost/performance balance of a modern S-VHS recorder is still very attractive.

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Materials

010121-PCB.pdf

Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.

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PCB

Download Gerber file: 010121-1.zip

Extra info / Update

On some printed circuit boards the silk screen printing for the six wire links is missing. These links are, however, indicated in the PCB component overlay printed in the magazine.

Component list

Resistors:
R1,R8,R9,R18 = 150Ohm
R2,R4,R21,R22 = 10kOhm
R3 = 1kOhm 5
R5,R13,R25 = 1kOhm 2
R6,R7 = 75Ohm
R10 = 270Ohm
R11,R14,R26,R28-R30,R32 = 1kOhm
R12,R15 = 220Ohm
R16,R20 = 390kOhm
R17,R24 = 100Ohm
R19,R23 = 2kOhm 2
R27 = 47kOhm
R31 = 100kOhm
Capacitors:
C1,C3,C5,C9,C13,C14 = 100nF (5mm lead pitch)
C2 = 33pF
C4 = 56pF
C6,C7,C8,C21 = 2µ F2 25V (radial)
C10 = 6µ F8 16V tantalum
C11 = 100pF
C12 = 47µ F, 6.3V tantalum (SMD, fit at track side)
C15,C16 = 47pF
C17-C20 = 10nF (5mm lead pitch)
C22 = 1000µ F 25V (radial)
C23 = 30pF trimmer (miniature)
Inductors:
L1,L2 = 15µ H miniature choke
Semiconductors:
B1 = B80C1000 (round case) (80V piv, 1.2A)
D1-D4 = LED, red, low current, 3mm
IC1,IC2 = 74HC4053
IC3 = EPM7064SLC44-10 (Altera), programmed, order code 010121-31
IC4 = 4805 (low-drop)
T1,T2,T4,T5 = BC550
T3,T7,T8 = BC560
T6 = BF245B (do not use -A or -C suffix)
Miscellaneous:
K1,K2 = SCART socket, PCB mount, angled pins
K3,K4 = 4-way Mini DIN socket, angled pins (for SVHS)
K5-K8 = 4-way cinch (RCA) socket, chassis mount (Conrad Electronics # 736910)
K9 = 2-way PCB terminal block, lead pitch 7.5mm
S1 = toggle switch, 1 change-over, with centre-off position, miniature version for PCB mounting
Tr1 = mains transformer, PCB mount, 1 x 6V, 1.5VA - 1.9VA (Hahn # EI3032030)
X1 = 8.,867238MHz quartz crystal (PAL TV xtal)
ABS enclosure 124 x 71 x 41 mm (l x b x h) (Conrad Electronics # 520993 and 521035)
PCB, order code 010121-11