Also, shielding and PSU wiring were simplified, and from the SCPH-5001 on the RCA jacks and RFU power connectors were removed from the rear panel and the printed text on the back was changed to reliefs of the same.
Scph 5501 bios manual#
This model further addressed the reliability issues with the disc drive assembly by placing the drive further away from the power supply in order to reduce heat the chipset was also redesigned to use digital servo for focus/tracking and also to auto-calibrate the drive, as opposed to manual gain/bias calibration on earlier models. This was followed by the first major consolidation, SCPH-550x/5001 and PAL-exclusive SCPH-5552 units, released in April 1997. C hardware (same as late 1001/1002 units) with some upgrades to flawed components from previous models and a reduced retail price.
Scph 5501 bios series#
With the release of the SCPH-5000 series being produced only in Japan, it followed the same exterior design as the Japanese SCPH-3xxx series, its only differences being that it was switched to Rev. The CD player also included reverberation effects unique to those systems until the release of the PS one in 2000, which featured a slightly modified version of the BIOS. The PAL region consoles from SCPH-1002 up to SCPH-5552 were different from the systems released in other regions in that they had a different menu design a grey blocked background with square icons for the Memory Card (an icon showing a PlayStation with 2 memory cards inserted) and CD player (an icon with musical keyboards) menus. C hardware first appeared in late 1995 and, unlike in Japan, was not marked with a model number change in NTSC-U and PAL territories - SCPH-1001/1002 systems can have either revision, as the change happened between revisions of the PU-8 mainboard. At the same time the GPU was upgraded to utilize smoother shading, resulting in overall better image quality compared to earlier models, which were more prone to banding additionally, performance for transparency effects was improved, resulting in less slowdown in scenes using this effect heavily. The original hardware design included dual-ported VRAM as graphics memory, but due to a shortage in parts, Sony redesigned the GPU to use SGRAM instead (which could simulate dual-porting to some extent by using two banks). Late KSM-440ACM drives had the sled replaced with a die-cast one with hard nylon inserts in order to address the issue. This series of machines had a reputation for CD drive problems – the original optical pickup sled (KSM-440AAM) was made of thermoplastic and placed close to the power supply, eventually leading to uneven wear that moved the laser into a position where it was no longer parallel with the CD surface. Also, the first models (DTL-H1000, DTL-H1001, DTL-H1002) had problems with printf function and developers had to use another function instead. Inconsistent numbering was also used for the Yaroze machines, which were based on SCPH-5000 and later 1001/1002 hardware, but numbered DTL-H3000, DTL-H3001, and DTL-H3002. B silicon and no S-Video port)-their technical equivalents were the Japanese SCPH-3000, so for consistency should have been SCPH-3001 and SCPH-3002. and European launch units had the same part number series (SCPH-100x) as the Japanese launch units, but had different hardware (Rev. This also led to a discrepancy where the U.S. This started very early on with the original Japanese launch units the SCPH-1000, released on 3 December 1994, was the only model that had an S-Video port, which was removed on the next release. From an external viewpoint, the most notable change was the gradual reduction in the number of external connectors from the back of the unit. The PlayStation went through a number of variants during its production run, each accompanied by a change in the part number. The SCPH-900x revision saw the removal of the Parallel I/O port while the RCA jacks were removed in the SCPH-550x revision. A comparison of the SCPH-1001 (bottom), SCPH-5501 (middle) and SCPH-9001 (top) models.
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