Panasonic N-1005 Troubleshooting Guide
The ROBO (N-1005) is a Panasonic FZ-1 with a Video CD module and a five-disc changer, in a Nicetec case built for hotels.[1][2] Faults on the FZ-1 board can be traced with Panasonic's documents, through the Panasonic FZ-1 Troubleshooting Guide. No fault on a ROBO's changer or case wiring has been reported in print.
Before you start
[edit | edit source]- Check the supply. The ROBO is rated AC 100 V, 30 W, 50/60 Hz.[3]
- The ROBO has two power controls: a POWER ON/OFF rocker on the rear panel beside the mains lead, and the POWER button on the front. Check that the rear rocker is on before looking for a fault.[4][5]
- Note the positions of the rear MODE SELECT switch (A or B) and the channel switch (CH1 or CH2) before changing anything.[4]
- Find the FZ-1 main board's number when the case is open. Panasonic made several, and the FZ-1 guides give different parts for each.[6]
Symptoms
[edit | edit source]| Symptom | Probable cause | Action |
|---|---|---|
| Nothing lights at all | Rear rocker off; no mains; on the FZ-1 board, a blown fuse F1 or a failed supply | Check the rocker and the supply, then follow the FZ-1 power checks |
| Picture rolls, is black and white, or missing on one television | MODE SELECT at B, the non-standard 240-line mode | Set MODE SELECT to A |
| RF picture poor on both channels | Dirty CH1/CH2 channel switch | Work the switch back and forth; use the S-Video or composite output |
| Random resets, crashes during play | Leaking supply capacitors, a weak supply, or faulty DRAM or VRAM | Inspect C35 and C36 first; recap the FZ-1 board |
| Discs read slowly or not at all; video stutters | Dirty or worn laser, failing capacitors, a damaged disc | Clean the lens, check the disc, then the capacitors and the laser |
| One disc position does not load | Changer mechanism, its wiring, or the disc | Try another disc in that position; inspect the changer |
No power
[edit | edit source]The FZ-1's supply protects itself: if the transformer output, the +9 V rail or the +5 V rail rises too high, a zener diode fires the thyristor D2, which shorts the supply and blows F1. A blown F1 therefore points to a fault to be found before the fuse is replaced.[9] The 3DO Development Repo also lists leaking C35 and C36 and the regulation diode D11 among the FZ-1's common failures.[8] Nicetec's wiring between the FZ-1 board, the changer and the Video CD module has not been documented. Label it and disconnect it before testing the FZ-1 board on its own.[1]
Picture faults
[edit | edit source]The MODE SELECT switch on the rear is the Japan-only FZ-1's mode switch. Mode A is standard NTSC. Mode B is a non-standard 240-line mode that some televisions, capture devices and scalers will not show, and it can make some games run fast.[7][4] The ROBO is an NTSC-J console: a PAL-only television will not display it.[8]
Games and discs
[edit | edit source]- All NTSC-U games should work on a Japanese console. Some Japanese games need the kanji ROM that is soldered to the board of Japanese consoles; if one of those fails, check that the ROBO's board has it.[8]
- Video CD needs the MPEG module made for the console's model and video standard. The ROBO has one fitted.[8][2]
- A CD-R is harder to read than a pressed disc. Test the drive with pressed discs first.[8]
The changer
[edit | edit source]Japanese Wikipedia says the five discs are loaded in advance and the selected one is lifted into place magnetically; its own source for this is no longer online.[2] If one position fails and the others work, swap discs between positions to separate a disc fault from a mechanism fault, then look at that position's mechanism and wiring. Photograph everything before dismantling it; see the Panasonic N-1005 General Maintenance page.
Related pages
[edit | edit source]- Panasonic N-1005 3DO CD Changer
- Panasonic N-1005 General Maintenance
- Panasonic N-1005 Capacitor Replacement Guide
- Panasonic FZ-1 Troubleshooting Guide
- Capacitor Failure Symptoms
References
[edit | edit source]- ↑ 1.0 1.1 Commercial, archive3do.com—link(accessed 2026-10-21) Section "3DO ROBO": "Inside the ROBO is an FZ-1 with a VCD module modified to a 5 disc changer"; photographs of grey and beige units, the rear panel and a boxed unit, credited to the collector Bitrate (AtariAge).
- ↑ 2.0 2.1 2.2 3DO, Wikipedia (Japanese)—link(accessed 2026-10-01) Model list, entry "ROBO": a custom FZ-1 made in an edition of 500 by Nicetec, a subsidiary of Futaba Corporation, for supply to love hotels; Video CD adapter fitted as standard; five CDs held in the changer, lifted magnetically. Its source, a page at i-o.no.coocan.jp, is no longer online.
- ↑ Rating plate on the rear of a ROBO photographed by archive3do (File:Panasonic N-1005 ROBO rating plate.jpg): "製品名 ROBO, 型式 N-1005, シリアルNo. 20080, AC100V 30W 50/60Hz, 株式会社ナイステック, MADE IN JAPAN".
- ↑ 4.0 4.1 4.2 4.3 Rear panel of a grey ROBO photographed by archive3do (File:Panasonic N-1005 ROBO rear panel.jpg): POWER ON/OFF rocker and fixed mains lead at the left; EXPANSION; MODE SELECT A/B; S-VIDEO OUT; VIDEO OUT; AUDIO OUT R and L; VHF 入力 (input) and 出力 (output); チャンネル切換 (channel switch) CH1/CH2.
- ↑ Front panels of a grey and a beige ROBO photographed by archive3do (File:Panasonic N-1005 ROBO grey and beige.jpg): POWER button and 3DO logo at the right; ACCESS light and five buttons in the centre; controller cable plugged in at the front left.
- ↑ Panasonic FZ-1 Capacitor Replacement Guide on this wiki: board identification (DFUP0576, DFUP0648, DFUP0649) and the parts lists for each main board type, from Panasonic's service manual and supplements and Console5.
- ↑ 7.0 7.1 Consoles, 3DO Development Repo, 9 January 2023—link(accessed 2026-10-21) "FZ-1 Mode Switcher": a Japan-only FZ-1 with a mode switch in place of the RF switch; mode A is standard NTSC, mode B a non-standard 240-line mode that can speed up some games.
- ↑ 8.0 8.1 8.2 8.3 8.4 8.5 General Hardware Repair and Maintenance, 3DO Development Repo, 7 November 2022—link(accessed 2026-10-21) Community repair notes: FZ-1 common failures (power supply capacitors C35 and C36, RAM capacitors, drive gear, regulation diode D11, tray belt); mode switch, RF channel switch and region checks.
- ↑ 9.0 9.1 Panasonic FZ-1 Troubleshooting Guide on this wiki: Panasonic's power-supply protection (zener diodes D3, D12 and D33 trigger the thyristor D2, which blows F1), checks by symptom, and the laser, from the FZ-1 service manual and supplements.
