Fortunately, Giovanni R. Nunes sent me some important connectors in ASCII art... Thanks!
Note that none of the editors (including me, Manuel Bilderbeek) is responsible for any damage caused by errors in this page! Cables are made at your own risk. And, it's not guaranteed that there are no errors in the schemes!
DIN 8 pins (female)
7 6 1 GND 5 CMTIN I
3 8 1 2 GND 6 REM + O
5 4 3 GND 7 REM - O
2 4 CMTOUT O 8 GND
DIN 5 pins (female)
. .
3 . 1
5 4
2
Pin Name I/O
=================
1 REM O
2 GND
3 REM O
4 CMTIN I
5 CMTOUT O
DB 9 pins (male)
1 2 3 4 5 1 FWD I 5 +5V
6 7 8 9 2 BACK I 6 TRG 1 I/O
3 LEFT I 7 TRG 2 I/O
4 RIGHT I 8 OUT O
9 GND
1 data b0 (in)
2 data b1 (in)
3 data b2 (in)
4 data b3 (in)
5 +5V (out)
6 trigger 1 (in)
7 trigger 2 (in)
8 strobe (out)
9 ground
The MSX Mouse sends 2 signed bytes to the computer, X and Y. This byte must be added to the current X and Y location, so it is a relative movement. So X=0 means X is the same, X=1 means X=+1 and X=255 means X=-1. This is very easy to implement, however it poorly supports mouse speed control, because it's a digital signal. Well, anyways, those 2 bytes are transferred in 4 parts. The computer reads pins 1-4 four times, afterwards signalling the mouse to ready the next 4 bits by complementing pin 8.
Centronics 14 pins (female)
07-06-05-04-03-02-01 1 PSTB O 8 PDB6 O
| | 2 PDB0 O 9 PDB7 O
14-13-12-11-10-09-08 3 PDB1 O 10 NC
4 PDB2 O 11 BUSY I
5 PDB3 O 12 NC
6 PDB4 O 13 NC
7 PDB5 O 14 GND
I don't know the name but it is the same connector of flat cables, male with 26 pins (is equal to the parallel connector of a Pentium's motherboard with built-in IDE controler).
25 1
. . . . . . . . . . . . .
. . . . . . . . . . . . .
26 2
from 2 to 24 = GND
19,23,25 and 26 not conected
Pin Name
================
1 STROBE
3 D0
5 D1
7 D2
9 D3
11 D4
13 D5
15 D6
17 D7
21 BUSY
It's for the Sony HB-F700, but it supposed to work for the Turbo-R and the Sanyo Wavy MSX2+ too.
SONY HB700 RGB plug: (seen from cable side)
7 6
3 8 1
5 4
2
+---------------------------------------------+
\ 20 18 16 14 12 10 8 6 4 2 |
\ |
| 19 17 15 13 11 9 7 5 3 1 |
+-------------------------------------------+
RGB: Description: SCART:
1 audio ground 4 (and 5, 9, 13, 14, 18 to be sure)
2 audio right 2 (and 6 (mono))
3 status CVBS 8
4 CVBS 20
5 status RGB 16
6 red 15
7 green 11
8 blue 7
Bye, Maarten
Extra remarks by Alwin Henseler:
The signal on pin 3 (status RGB) functions like a switch signal,
where any voltage from +3 to +12 volt signals 'on', and anything
below that indicates 'off'. This is for instance used if you're
connecting your computer to a TV with SCART input. In that case,
the TV will automaticly switch to display of the RGB (SCART)
signal when the computer is turned on.
It is usually connected to +12V (sometimes only some 5V, but
this should work the same) through some series resistor.
The Sony F700 and Sanyo Wavy only put a composite sync signal (no complete video, only synchronisation signals) on pin 4, where the Turbo-R seems to put a complete composite video signal on this pin. An RGB monitor only uses this to extract the synchronisation signals, and therefore either composite sync, or composite video will do.
The signal on pin 5 (Ys, or luminance) is not really a signal, but carries a constant voltage of some 3 to 4 volts. Some monitors seem to need this though.
+---------------------------------------------+
\ 20 18 16 14 12 10 8 6 4 2 |
\ |
21| 19 17 15 13 11 9 7 5 3 1 |
+-------------------------------------------+
Pin Name I/O Signal level Imp.
--------------------------------------------------------------------------------
1 Audio out (right) O nom: 0.5V, max: 2V less than 1kOhm
2 Audio in (right) I nom: 0.5V, max: 2V more than 10kOhms
3 Audio out (left) (+Mono) O nom: 0.5V, max: 2V less than 1kOhm
4 Audio GND
5 RGB Blue GND
6 Audio in (left) I nom: 0.5V, max: 2V more than 10kOhms
7 RGB Blue out O 0.7Vpp 75 Ohms
8 Status CVBS O 0: 0.2V; 1: 9.5-12V
9 RGB Green GND
10 NC or Data 2: Clockpulse Out
11 RGB Green out O 0.7Vpp 75 Ohms
12 NC or Data 1: Data Out
13 RGB Red GND
14 Data line GND
15 RGB Red out or Chrominance (SVHS) O 0.7Vpp (Chrom.: 0.3V burst) 75 Ohms
16 Status RGB/blanking O 0: 0-0.4V=Comp., 1:1-3V=RGB 75 Ohms
17 CVBS/video GND
18 Status RGB GND
19 CVBS/video out O 1Vpp (comp. video)
20 CVBS/video in or Luminance (SVHS) I 1Vpp (comp. video)
21 Socket GND
8 pin DIN
7 6 7 NC 6 +12V
3 8 1 3 AUDIO 8 NC 1 +5V
5 4 5 CVBS (color video PAL) 4 Ys (monochrome)
2 2 gnd ('luminance')
This connector can at least be found on a HB-101P, HB-201P and HB-501P. A method to make a cable to RCA plugs is described here.
If your monitor/TV is mono you need one DIN-6 male connector and two RCA male connectors to make a cable (one RCA connector for video and one for audio). Usually, the two female RCA connectors of the TV are of colours yellow (video) and black (audio).
If it is stereo then you need one DIN-6 male connector and three RCA male connectors (one RCA connector for video and two for audio). Your MSX will always output mono sound though; it's just to be sure that we'll hear sound on both speakers. Usually, the three female RCA connectors of the TV are of colours yellow (video), red (right audio) and white (left audio).
External view of the female DIN-6 connector of the computer:
5 1 1 +12V
6 2 VIDEO OUT
4 2 3 GND
3 4 AUDIO LEFT OUT
5 -
6 AUDIO RIGHT OUT
Male RCA connectors:
-----------------
----| |
-------| |
tip -> -------| |
----| |
^ -----------------
|
sleeve
For mono monitor/TV
RCA video connector (yellow) DIN6
tip 2
sleeve 3
--------------------------------------
RCA audio connector (black) DIN6
tip 4 or 6
For stereo monitor/TV
RCA video connector (yellow) DIN6
tip 2
sleeve 3
--------------------------------------
L-audio RCA connector (white) DIN6
tip 4
--------------------------------------
R-audio RCA connector (red) DIN6
tip 6
DIN 8 pins (female)
7 6
3 8 1
5 4
2
Pin Name
================
1 Compose Sync
2 GND
3 Red
4 Blue
5 Green
6 +Vcc (+12V)
7 Y (Luminance)
8 Audio
This is the standard MSX RGB pinout according to the MSX-Datapack.
DIN 8 pins female
1 GND
2 Audio
3 AV (*1)
4 C SYNC (*2)
5 YS (*3)
6 R
7 G
8 B
7 6
3 8 1
5 4
2
Notes:
*1: Composite Video (aka CVBS). May be NC, or fixed to 1.8V via
pull-up resistor in some models
*2: Composite sync. The signal level is 1.8Vpp (composite video
standard). May be mixed either with Luma or Composite video itself
(Panasonic machines). This means that it has to be passed through a
sync cleaner and level adjuster to be able to be used in monitors that
expect a TTL signal
*3: +3V~+5V signal, used to switch the TV to the RGB input. Also
allows superimposing on SCART and RGB21 TVs if the MSX has such
hardware built-in. Shouldn't be used as Vcc
1 +5V
2 GND
3 AUDIO
4 VIDEO
5 RF VIDEO (*1)
U
3 1
5 4
2
Notes:
*1: This is meant to be connected to the antenna input of the old TVs
that had no other input connector. The image of this standard is of
extremely low quality. It's unconnected on most models.
Video/audio out CX-5MG, CX-5MS, CX-5ME, CX-5MA, CX-5MF: 8 pin DIN-like connector. Connect with RCA type pin connection cables. Seems to be the same as the standard 8-pin DIN RGB connector of the MSX-Datapack, see above.
1 GND
2 SOUND
3 AV
4 Y
5 YS
6 R
7 G
8 B
7 6
3 8 1
5 4
2
GND GND
B | Ys |
| | | |
+--|---|---|---|---------------------------+
| | | | | |
| [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]--+-- 2
| |
[ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]-+-- 1
| | | | | | | |
+---|---|---|---|---|---|------------------+
| GND | GND | GND
G R C SYNC
This is a popular monitor for MSX computers, but unfortunately it does not have a SCART connector. The connector is a 9-pin sub-D one... Here's the description:
At the back of CM-8833II:
5 4 3 2 1
9 8 7 6
Pin Description
-----------------
1 ground
2 ground
3 red
4 green
5 blue
7 status RGB
How to connect a Commodore 1084s monitor to your Sony 700... Only for 1084s monitors with DIN connectors at the back, other models of this monitor have a 9 pin SUB-D connector at the back, and pinout should be the same as on the CM8833-II (see previous).
Use the 6 pins DIN connector at the back of the 1084s (analog RGB) for the following cable to work. Also, use a separate cinch cable for the audio signal, since the 1084 won't receive audio through the DIN connector. These pins are marked with an 'x', so make a separate cable for this if you want sound.
3
2 4
1 5
6
To connect this monitor to the Sony HB-F700, you can use this info to extract the following scheme (see above for the HB-F700/turboR RGB connector):
From: To: Function:
MSX, 8 pin DIN 1084, 6 pin DIN
=========================================
1 3 / x Ground
2 x Audio left
3 n/c Status CVBS
4 2 CVBS
5 n/c Status RGB
6 4 Red
7 1 Green
8 5 Blue
Note: we thought it would also work on the MSXturboR, since it's RGB connector
is very similar to the one in the Sony 700 series. But it did not work! To let
it work on an MSXturboR, we recommend to build a SCART connector into the
1084s. The monitor is prepared for this. The drawback is that you need to do
quite some modifications. To make those modifications, you have to look
carefully to the instructions on the circuit board. This is how Saku Taipale
describes it:
There is a set of jump wires in the monitor and some of them are left away from
the 1084 which doesn't have a scart connector. Jump wire connection points are
marked as a line from hole to hole in the board and are also numbered.
I connected these wires: 9202 9206 9212 9247 9270 9274 9275 9289 9290 9331, R533 (this is a place for resistor, but I put wire there instead).
Connect these connection points with a long wire (they have triangle marked in
the connection hole):
24 - 49
22 - 50
69 - 44
Next: the resistors. Here is the list of resistors with the values (in Ohm) I used,
the code in mainboard is same Rxxx.
| code | value | code | value |
|---|---|---|---|
| R210 | 22 | R403 | 39k |
| R220 | 75 | R502 | 100 |
| R303 | 22k | R504 | 390 |
| R304 | 15k | R530 | 1k |
| R305 | 5.6k | R537 | 4.7 |
| R306 | 5.6k | R538 | 10k |
| R307 | 18k | R541 | 15k |
| R308 | 100k | R548 | 68 |
| R309 | 15k | R545 | 39 |
| R310 | 47k | R546 | 150 |
| R311 | 100k | R547 | 39 |
| R312 | 47k | R551 | 1.2k |
| R313 | 15k | R563 | 5.1k |
| R314 | 1.5k | R624 | 10k |
| R315 | 15k | R625 | 100 |
| R402 | 4.7k | R626 | 2.2k |
Capacitors, marked also in the mainboard, just find the right places...:
| code | voltage | value | remark |
|---|---|---|---|
| C308 | 50V | 1uF | |
| C312 | 16V | 10uF | |
| C313 | 560nF | (?, has mark B561 in it) | |
| C314 | 16V | 47uF | |
| C315 | 220nF | ||
| C401 | 25V | 2.2uF | |
| C537 | 16V | 47uF | |
| C544 | 16V | 22uF | |
| C545 | 68nF | ||
| C548 | 680nF | (?, B681) | |
| C568 | 22nF |
Transistors:
| code | transistor type |
|---|---|
| TS310 | C548B |
| TS313 | C548B |
| TS315 | C548B |
| TS405 | C548B |
| TS544 | C548B |
Diodes: D601 D602 D603 D604 D605.
And also, remember to buy the male (90 degree turn in the legs) scart-connector for your modification!
4 pin mini-din female
4 3
2 1
---
Pin Description
1 GND (Y)
2 GND (C)
3 Y (intensity = luminance)
4 C (color = Chrominance)
The GFX9000 of Sunrise has a sub-D connector for video output. This is the pin-out:
._________________.
\ 5 4 3 2 1 /
\ 9 8 7 6 /
`------------'
Pin Signal I/O
----------------------------
1 GND -
2 GND -
3 Red O
4 Green O
5 Blue O
6 Status RGB O
7 CVBS * O
8 Audio Left ** O
9 Audio Right ** O
This is the description of the Video Interface which is on the Sony HB-G900P. It is used to connect the Sony HBI-G900P Videotizer. The schematics are taken over from the "Operating Instructions" of the Sony HB-G900P.
.________________________________________________________.
\ 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 /
\36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19/
`---------------------------------------------------'
Pin No. Signal Signal Level
-----------------------------------------------
1 Video input 1.0 V p-p, 75 ohm term.
2 Video output 1.0 V p-p, 75 ohm term.
3 R 0.7 V p-p, 75 ohm term.
4 G 0.7 V p-p, 75 ohm term.
5 B 0.7 V p-p, 75 ohm term.
6 Ys TTL
7 Ym No-connect
8 SYNC TTL
9 BF TTL
10 SYM0 TTL
11 VIDEO/NO VIDEO TTL
12 C0 (B1) TTL
13 C2 (R0) TTL
14 C4 (R2) TTL
15 C6 (G1) TTL
16 RCA/21 pin TTL
17 SC TTL
18 DLCLK TTL
19-24 GND
25 Computer Sync TTL
26 ALT TTL
27 BLK TTL
28 SYM1 TTL
29 GND
30 C1 (B2) TTL
31 C3 (R1) TTL
32 C5 (G0) TTL
33 C7 (G2) TTL
34-36 GND
Female 50 pin connector
+---+
1:/CS1 2:/CS2 1 |= =| 2
3:/CS12 4:/SLTSL |= =|
5: RSV(N.C) 6:/RFSH |= =|
7:/WAIT 8:/INT |= =|
9:/M1 10:/BUSDIR |= =|
11:/IORQ 12:/MERQ |= =|
13:/WR 14:/RD |= =|
15:/RESET 16: RSV(N.C) |= =|
17: A 9 18: A15 |= =|
19: A11 20: A10 |= =|
21: A 7 22: A 6 |= =|
23: A12 24: A 8 |= =|
25: A14 26: A13 |= =|
27: A 1 28: A 0 |= =|
29: A 3 30: A 2 |= =|
31: A 5 32: A 4 |= =|
33: D 1 34: D 0 |= =|
35: D 3 36: D 2 |= =|
37: D 5 38: D 4 |= =|
39: D 7 40: D 6 |= =|
41: GND 42: CLOCK |= =|
43: GND 44: SW1 |= =|
45: +5V 46: SW2 |= =|
47: +5V 48: +12V |= =|
49: SOUNDIN 50: -12V 49 |= =| 50
+---+
1 ROM addresses 4000-7FFF select signal
2 ROM addresses 8000-BFFF select signal
3 ROM addresses 4000-BFFF select signal (for 256k ROM)
4 Slot select signal
5 Reserved signal line - use inhibited
6 Refresh cycle signal
7 CPU's WAIT request signal
8 Interrupt request signal to CPU
9 Signal expressing CPU fetch cycle
10 This signal controls direction of external databus buffer
Cartridges are selected and L level is output from each
cartridge at data transmission time
11 I/O request signal
12 Memory request signal
13 Write timing signal
14 Read timing signal
15 System reset signal
16 Reserved signal line - use inhibited
17-32 Address bus signals
33-40 Data bus signals
41 Signal ground
42 CPU clock 3.579545MHz
43 Signal ground
44,46 For insertion/removal protect
45,47 +5V power source
48 +12V power source
49 Sound input signal (-5bdm)
50 -12V power source
Compare:
MSX cartridge:
2 50
(...)
1 49
49 1
(...)
50 2
The information is on courtesy of Alex Mitsio Sato directly
from his Expert User's Manual... :)
The Yamaha CX-5M has (apart from a normal MSX cartridge slot) also the so-called
"Extension side slot". A 60 pin expansion port. According to the manual it's pin
assignment is as follows:
(http://www.rgp.nl/cx5m/conn.htm)
No. Name I/O No. Name I/O No. Name I/O
-------------------- -------------------- -------------------
1 SOUND OUT O 2 GND 3 GND
4 Phase Control I 5 Y O 6 B-Y O
7 C VIDEO O 8 R-Y O 9 EXT CLOCK I
10 CLOCK INT/EXT I 11 CS1 O 12 CS2 O
13 CS12 O 14 SLTSL O 15 N/C -
16 RFSH O 17 WAIT I 18 INT I
19 MI O 20 NO CONNECTION - 21 IORQ O
22 MERQ O 23 WR O 24 RD O
25 RESET O 26 N/C - 27 A9 O
28 A15 O 29 A11 O 30 A10 O
31 A7 O 32 A6 O 33 A12 O
34 A8 O 35 A14 O 36 A13 O
37 A1 O 38 A0 O 39 A3 O
40 A2 O 41 A5 O 42 A4 O
43 D1 I/O 44 D8 I/O 45 D3 I/O
46 D2 I/O 47 D5 I/O 48 D4 I/O
49 D7 I/O 50 D6 I/O 51 GND -
52 CLOCK O 53 GND - 54 SW1 -
55 +5V - 56 SW2 - 57 +5V -
58 +12V - 59 SOUND IN I 60 -12V -
The scheme is the connector on the diskdrive, not the connector on the flatcable!
___
|---------------------| |-------------------- |
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33
|-------------------------------------------------|
2 Dchange* 1 in use*
4 NC 3 gnd
6 DS3* 5 gnd
8 index 7 gnd
10 DS0 9 gnd
12 DS1 11 gnd
14 DS2* 13 gnd
16 M on 15 gnd
18 dirc 17 gnd
20 step 19 gnd
22 Wdata 21 gnd
24 Wgate 23 gnd
26 TR00 25 gnd
28 WP 27 gnd
30 Rdata 29 gnd
32 sidesel# 31 gnd
34 ready 33 gnd
*) Normally not used #) Only for double sided drive
Internal connector VG8230/35, NMS8245:
PIN NAME/DESCRIPTION
1 index
2 dirc
3 step
4 W data
5 W gate
6 ds0
7 ds1
8 side select (only 8245)
9 nc
10 M on
11 gnd
12 Tr00
13 WP
14 R data
External drive connector VG8235:
33 1
o o o o o o o o o o o o o o o o o
o o o o o o o o o o o o o o o o o
34 2
Pin Signal Pin Signal
---------------------------------
1 NC 2 NC
3 RETURN 4 /IN USE
5 RETURN 6 /DRIVE SELECT 3
7 RETURN 8 INDEX
9 RETURN 10 /DRIVE SELECT 0
11 RETURN 12 /DRIVE SELECT 1
13 RETURN 14 /DRIVE SELECT 2
15 RETURN 16 /MOTOR ON
17 RETURN 18 /DIRECTION
19 RETURN 20 /STEP
21 RETURN 22 /WRITE DATA
23 RETURN 24 /WRITE GATE
25 RETURN 26 /TRACK 00
27 RETURN 28 /WRITE PROTECT
29 RETURN 30 /READ DATA
31 RETURN 32 (/HEAD SELECT) (only 8245?)
33 RETURN 34 /READY
13 1
o o o o o o o o o o o o o
o o o o o o o o o o o o
25 14
Pin Name Description
1 +12V +12 VDC
2 +5V +5 VDC
3 +5V +5 VDC
4 /INDEX Sector hole passed sensor.
5 /DSEL1 Drive Select 1
6 DIR Direction (0=In, 1=Dir)
7 /STEP Moves head 1 step in DIR direction.
8 WRITEDATA Write Data
9 /WRITEGATE Write Gate
10 /TRACK00 Head is over Track 00 (outermost track)
11 /WRITEPROTECT Write protected disk (0=Write protected)
12 READDATA Data read from diskette.
13 /SIDESELECT Side Select (0=Side 1, 1=Side 0)
14 +12V +12 VDC
15 +12V +12 VDC
16 +5V +5 VDC
17 /DSEL1 Select Drive 0
18 /MOTOR Motor On
19 READY Ready
20 GND Ground
21 GND Ground
22 GND Ground
23 GND Ground
24 GND Ground
25 GND Ground
24 lead flat cable
1 -- +5V
2 -- +5V
3 -- NC
4 -- +5V
5 -- +5V
6 -- READY
7 -- GND
8 -- GND
9 -- SIDE SELECTION
10 -- GND
11 -- READ DATA
12 -- WR PROTECT
13 -- TRC 00
14 -- WRITE GATE
15 -- GND
16 -- WRITE DATA
17 -- GND
18 -- STEP
19 -- DIRC.
20 -- M-ON
21 -- NC
22 -- DRIVE SELECTION
23 -- INDEX
24 -- DISK CHANGE
FDD-pin MSX drive connector signal name
(26) (34)
----------------------------------------------------------------
1 - (from powersource) +5V
2 8 Index
3 - (from powersource) +5V
4 10 Drive select 0 for drive A: or
12 Drive select 1 for drive B:
5 - (from powersource) +5V
6 Not connected Disk change
7 Not connected Reserved
8 34 Ready
9 Not connected Media
10 16 Motor on
11 Not connected Density select
12 18 Direction
13 Not connected In use
14 20 Step
15 odd pins and powersource Ground, 0V
16 22 Write data
17 odd pins and powersource Ground, 0V
18 24 Write gate
19 odd pins and powersource Ground, 0V
20 26 Track 00
21 odd pins and powersource Ground, 0V
22 28 Write Protect
23 odd pins and powersource Ground, 0V
24 30 Read data
25 odd pins and powersource Ground, 0V
26 32 Side 1 select
DB 9 pin (I don't remember but may be male like PCs)
PIN NAME DIR DESCRIPTION
------------------------------------------
1 CD I Carrier Detect
2 RXD I Recieve Data
3 TXD O Transmit Data
4 DTR O Data Terminal Ready
5 GND - System Ground
6 DSR I Data Set Ready
7 RTS O Request to Send
8 CTS I Clear to Send
9 RI I Ring Indicator
1 +-------------+ 5
\ o o o o o /
\ o o o o /
6 +-------+ 9
DB 25 (standard connector in serial periphericals)
PIN NAME PIN NAME
1 GND 14 S.TXD
2 TXD 15 TXC
3 RXD 16 S.RXD
4 RTS 17 RXC
5 CTS 18 -
6 DSR 19 S.RTS
7 GND 20 DTR
8 CD 21 SQD
9 - 22 RI
10 - 23 SS
11 - 24 TXC
12 S.CD 25 -
13 S.CTS
DB 9 (also standard connector)
PIN NAME DESCRIPTION
1 CD Carrier detect
2 Rx Receive Data
3 Tx Transmit Data
4 DTR Data Terminal Ready
5 GND System Ground
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear to Send
9 RI Ring Indicator (n.c.)
,----------.
1| o o |2
3| o o |4
`----------'
This is a 13-pin DIN-like connector. The view is as seen on the male connector of the power supply.
13
12 11 10 9
8 7 6 5
4 3 2 1
/\
The Panasonic FS-A1 (and possibly other machines by Panasonic) needs a separate power supply. The original supply is the "AC Adaptor FS-AA51". The input on the machine is a 3 pin male connector, the output of the power supply is hence a female connector. According to the text on the power supply, this is the pinout:
_____
1 / o \
| |
2 | o o | 3
+-------+
The input of the power supply is AC 100V - 50/60Hz 23VA.
This is the I/O connector on the LD-700 (should be same as LD-7000):
7 1
4
a b c
i
g h
First, the functions of these pins (from LD-700 manual, so direction is from the LD-700's perspective):
PIN DIR NAME
1 I INT/ /EXT
4 O /EXT ACK
7 I EXT CONTROL
a - GND (this is also the shielding)
b O +11V (do not use as a powersource)
c O RF
g - NC
h - NC
i O VIDEO (75 Ohm)
Note: the pin numbering is taken from the Pioneer PX-7 manual. A bought plug for the I/O connectors may have a different numbering! To connect the LD to the MSX, you only need the numbered pins:
From MSX LD-700(0)
---------------------------------
1 INT/EXT 1
4 EXT ACK 4
7 EXT Control 7
So, it is a one to one cable.