Games videogame console "PS one" Japanese firm Sony is a summary of the development of the series consoles "PlayStation" [1]. Small weight and dimensions leave a mark on the features of its operation. Compared to previously released models, "PS one" often suffer from accidental falls from height, it is possible to literally words to sit down, not noticing the chair or on the couch. The result is often to seal the cracks in the fragile housing consoles.
In order to protect "PS one" and its accessories (joysticks, memory cards) from premature failure, take it a rule not to join and not rusticoville connectors on the front panel of the console glows green indicator. But if I had to do it, without turning off the power, apply the force perpendicular to the plane of the casing of the console. This ensures that longer, compared to the rest, the contacts of the circuit and General the wires in the connector connects the first or last disconnected.
Much of the heating elements in "PS one" is not and can permanently leave included. The network adapter that continue to work after turning off actually consoles designed for continuous operation in "idle". However, it is better not left unattended and unplug it from the mains for the night or leaving the house.
The corps network adapter is plastic and the top box ... sealed to to confront the perennial children's desire to look, "what's inside?". By the way, in various home appliances are increasingly used in a similar design. To to gain access to the adapter, gently sawing his body with a thin hacksaw side on the perimeter. When the repairs were finished, half body or just glue wrap several layers of tape, preferably transparent.
In the network adapter most often blows fuse F1 for 2 ([2], Fig. 5). Often this is a consequence of the breakdown of the power MOSFET Q1, which is easy to replace one of similar switched-mode power supply TV (FS5TM, 2SK1117, 2SK2666, 2SC2128, 2SC2125, 2SC2718). The transistor should be calculated for a voltage exceeding 600 V and direct current of at least 5 A.
Applied as Q2, Q3, Yes no total: Q51 transistors produce many Western and Asian firms. If necessary replace any low-power appropriate structure (p-n-p or n-p-n) and sizes, for example, series CT, CT, KT315, KT361.
The closest the parameters set by the adapter (chip IC1) CHI-controller NCP1200D60R2 company ON Semiconductor. Optocoupler IC2 is with any the more insulation voltage 500 V (NEC2561, TLP621, TLP521, RSA, "3171", "3131"). Diodes D3, D4 - 1 N4148 or series KD521, KD522, CD.
For complex repair faults on the adapter, it is advisable to give up and replace it with any, even homemade and not necessarily the pulse network block supply with an output voltage of 7.4...8 V At a load current of 1.5...2 A. Less voltage is not enough for stable operation of the device, when too much more will heat up some of its elements: integral regulator IC601, transistor Q602 ([2], Fig. 4), the chip IC722 (Fig. 3 ibid.).
External view of the CPU Board shown in Fig. 1.
It is noted here that all the most important elements. If obviously damaged parts, for example, blackened resistors, Board no, regardless of the existence of the defect priority checking subject to all fuse in a constructive design for surface mounting (tab. 1). In good condition the resistance of any one of them does not exceed several tens of milliohms, a larger value indicates a partial or full the trigger (burnout).
If the refusal was the result of the throw of the supply voltage or random circuit in the joystick, replacement of burnt paste similar or just pigtail 0.1 mm in diameter are usually fully restores IWP. The less after the repair it is recommended that some time to observe, not likely to repeat the fault and whether the Board is unusually hot parts.
Quite often break the protective Zener diodes installed in the input and output circuits of the console connectors СN502 (their refusal leads to the absence of picture and sound) or CN101, CN102 (not working joysticks and memory cards). For example, lowering the failure of voltage stabilization the Zener diode D104 to 1.8 In h
some joysticks continued to work, while others no. Replace the Zener can ordinary X...X with any letter indices, although it is better to use special clamp diodes [3]. Less happen breaks the windings of coils and anti-interference filters, which should also be checked with an ohmmeter.
Mechanical damage to the CPU Board and its members for "PS one" is not characteristic, although documented cases of momentary power loss nutrition due to poor contact in the connector J001. Sometimes the console can't to include, because oxidized or burnt contacts of the switch S001. More the reliability of the switch can be achieved by connecting in parallel the current free group of contacts. Cliff hinged wire that goes to the chip IC801, once led to the fact that when installed on any gaming console the disc appeared on the screen music menu.
To find a replacement of defective transistors (including those set out in the network adapter) help PL. 2. It provides not only the basic parameters each transistor, but also inflicted on his body marking, not knowing which, to "recognize" the device is quite difficult.
Resistors the top box is marked, as a rule, in the standard way. From three or four digit code on the very right is the exponent of the number 10, which multiply the number indicated by the previous two or three digits. Examples:
271 - 27 · 101 = 270 Ohms;
104- 10 · 104 =100 K;
3922 - 392 · 102 = 39,2 Ohm.
However, there are resistors installed and firm "Bourns" with margin nominal value ±1 % and alphanumeric marking. To decrypt the digital part printed on like the resistor code, refer to table. 3. Found in her number is multiplied by marked ratio: S - 0,01, R - 0,1, - 1, B - 10, C - 100, D - 1000, 10000, F - 100000. The result - the resistance of the resistor in ohms. For example, 12C - 13 kOhm, 18V - 1.5 Ohm.
The weak point of all models "PlayStation", "PS one", - mechanics the CD-ROM drive. Continuous daily operation of the console leads as a rule, to the backlash of the rotor of the motor rotating the disk. Externally, the defect is detected that in the normal (horizontal) position of the housing IWP's program begin work only after repeated "the wiggles" laser head over the disk. Tilting the casing 10...45°, the reliability of the input data can be restored. Sometimes needful for this corner will soon improve, but more often gradually growing.
Discovering such defect, first of all make sure that it is in the engine, the rotating disk, and not, for example, in the actuator of the optical head carriage. Worm drive transmission is worn out, sometimes it is difficult accumulated mud. All the details of the transfer, rinse with pure ethanol and lubricate medical vaseline or special nesaule of maintaining a lubricant for plastic details (MOLITUBE, LUBRIPLATE, etc.).
To eliminate the "jerks" of the carriage, sometimes it is enough to shift the engine, rotating the worm, or squirt the lubricating oil on the rotor. With proper the drive movement of the carriage should not be accompanied by POPs and other sounds.
Unreliable data reading may be due to contamination of the optical lens head. This often leads to the deposition of tar from the tobacco smoke. The lens surface is blown free of dust with compressed air from a special, such aerosol, cylinder, or gently wipe with a clean dry a cotton cloth. It is permissible to replace the lens the same diameter of 5 mm from computer CD-ROM drive.
Sometimes it is useful to increase emitted by the laser diode power, using 10...20% resistance podstavnogo resistor located on a flexible cable the optical head. Before adjusting measure set value resistance (approximately 1.2 kω), so that in case of failure to return all ago.
If as a result she did not improve, the most reliable and quick the method of repair is to replace the unit the CD-ROM drive entirely known-good. In addition to regular, you can use the drive KSM-440ACM from consoles series SCPH-100x. Drives KSM-440ADM, KSM-440AEM from other models "PlayStation" differ in the length of the flexible cable and the design, although it is compatible with "PS one" electrically.
Note that the cost of this operation will be 35...50% of the total value "PS one". A cheaper option is to replace only the motor of the CD-ROM drive. Suitable RF-300PA-11400 D/V 5.9 or RF-300F-11420 D/V 5.9 of the company "Mabuchi".
In a bind you can go on repairing the engine. It along with plastic nozzle 2 is shown schematically in Fig. 2. Last must be removed first by measuring and recording the width of the gap S between her and the engine body 1. This will allow you to return the item accurately. Please note that this site is not designed for disassembly and re-Assembly, the operation fails not always and requires certain skills.
The tip is very fragile and tightly seated on the shaft 3. Removing it, should not be allowed misalignment, which can lead to irreversible consequences: the bending of the shaft, cracks in the nozzle or "broken" planting hole, not allowing further secure it to the shaft.
It is best to make a special puller - arm with two blades, which insert into the gap. With it, the nozzle carefully shifts, putting efforts evenly from all sides. To perform this operation otherwise is, for example, a few steel plates inserted into the gap from different angles. The main thing - to act carefully and without haste.
The entire surface is released from the nozzle shaft rinse with ethyl alcohol. Then, wearing protective gloves, a drop of CA glue (this durable quick-drying glue sold under the trademarks "Superglue instant action", "Second"), lock the shaft in the bearing 4, eliminating backlash. After a few required for the glue to dry minutes the nozzle 2 can be installed on the shaft 3, definitely making sure that the gap width S is exactly equal to the measured the start of the repair. If the nozzle is slipping on the shaft, try to fix its the same glue.
A day later, you can start the "training" of the engine increased to 8 9 In... voltage. At the first turning on the shaft will accelerate slowly, as if with labour. After a few "training" normal rotation is restored.
The CA glue is able to firmly glue the biological tissue, so use it with caution, avoiding the skin.
Literature
Author: S. Ryumik, Chernigov, Ukraine