Problema con chip de PS2

Hola abitip, mi pregunta es sobre los modchip de PS2. He instalado el chip eolo, una pic 12c508a, con su correspondiente esquema, en una ps2. Y funciono 2 veces, pero luego se me quedo la pantalla negra. Y al abrirla otra vez, habia un cable suelto, y ahora aunk kite el chip, no funciona, no me abre la bandeja, y se queda la pantalla negra, sabes de k puede ser, o donde localizar los fusibles que lleva la placa base? Muchas Gracias por todo.
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1 respuesta

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Respuesta de
Tu problema no esta en los fusibles, posiblemente, al soltarse el cable hizo un corto en algun sitio de l aplaca y te salto algún integrado, adjunto te envio la mision y control de los integrados en función de la version de tu placa. Mira el IC 102.
Version 1002
Graficos
-Black screen at power up, sound echoed, hums, sometimes sound ok - reflux IC103 or IC203 faulty
-Jerking graphics, frames trying to catch up in movies, no games - IC106 to IC109 (2 meg RAM)
-Graphics missing in games, Movies ok - CPU (IC103)
-Graphics failure now and then, Vertical thick coloured lines - X101
-Vertical thin lines in pictures - IC201 or IC202 reflux or replace
-Boot ok, spin up ok, slow loading, partial pictures, jerking movies, resetting - IC103
-Boot up ok, Reads CD and PSX logo text missing or jumbled, from screen - IC103
-Boot up ok, Loads CD and PSX logo text missing, some partial text no more loading - IC305
-Stuck on first boot screen - IC305 or 4 Mhz crystal IC302
-Locking up in games - CPU
-Slow boot, No sound - 3.5v regulator (BV3 transistor on side B)
Problemas en parte optica
(Las posiciónes optimas de los potenciomentros del lector son (respecto a un reloj de agujas, y los potenciomentros de izquierda a derecha, las 3, las 3, las 12.)
-No OB movement, No OB spin or will not read CD `s - X302 replace
-Jerky graphics in movies - Pots need realignment or faulty OB
-OB clicking and lens far over the end of the sled - Graphics sometimes faulty - X101
-No OB movement, No spin, No laser - IC 704 or PS601
-OB clicking trying to spin - Try replacing CN702 and the pots (RV01, RV702, RV704)
-Laser hard click at power up, then no movement, Laser on - IC309
-No spin, Laser ok, OB movement ok - IC309, IC702 and tracks, POTS!!!
-Spin, No speed change, no change on screen then stops and starts again - IC305, IC303, IC309
-Spins up to speed, Stops, clicks a few times, sometimes starts again, tries to read CD - *100 inductor, supply voltage to IC304 replace or *100 inductor next to IC303 (side b)
-Spins up to speed ok, gets to SONY logo screen then stops, clicks once then starts again - IC305
-Disk spins up to speed as to boot then slows down, keeps repeating process - IC305
Problemas en Audio:
-Sonido anormal en arranque -IC308, IC402, IC310
-En videos audio bajo con distorsión, en juegos y cds de audio bien-Reemplazar IC305
-No hay audio en videos-Reemplazar IC305
version 5502-5002
Optical Block problems
(Optimal RV703 position 11 o'clock)
-No vertical movement or spin - Try replacing the OB then re-flow IC305, IC704 then replace also check S301 (switch)
-CD in very fast spin, even at power on - Re-flow IC704, IC305 or replace
-Jerking Laser movement - replace IC704
-Disk spins up then no change at boot, disk then stops - Replace IC704
-Not loading, keeps pining at same speed then stops, starts again - IC303, IC305
-Will not read CD's also clicks when reading- Replace OB and also IC704, IC305, IC706
-No OB movement no laser - Check the 3.5V rail, if no then replace Q611 or check PS601 (fuse) or change IC706
-Weak movement in Laser OB - Replace IC704
-Spin twice then stops - Replace IC701, First check OB, CN702
-Hang on hardware boot and No OB movement, No laser - Replace IC706, IC305, PS601 fuse.
-Reading as audio CD when data CD inserted - IC706 blown or tracks damaged or RV703 (variable pots). Set at 11` o'clock position
-No laser - (3.5v Regulator) Q609, Q610, Q611, C740, IC703
-Laser stuck on at switch on, movement ok - IC703, IC304
-Disk spins up as to boot then slows, spins up then slows - IC701
-OB sled runs to opposite end at switch on - IC701
-When warm black and white vertical stripes on screen, O.B at the end of sled, clicking loudly. - X101 replace
-Spin up ok at first boot. After a while the laser starts to dim then go completely out. CD stops. Reset machine and CD spins twice then stops. - Q609 faulty 3.5v regulator, 5-volt regulator faulty. First change OB!
-Jumpy graphics in movies and sound sticking - replace OB or IC308
-At first spin OB clicks once - IC701
version 7502-7002
9002
(Los problemas encontrados en la 7502 pueden ser aplicados a la 9002)
Graphics
-This board suffered from dry joints on the CPU 2 Meg RAM. The problem was that when the shielding was screwed down tight it would bend the board. The Memory was across the bend in the board. Then dry joints would form and when powered up the PSX 900 series would boot into a blank black screen.
-Blank screen at power up, check for ROM (IC102) writes with scope (pin 125 of CPU) when reset button is pushed. If static write then replace ROM. If ROM writing data is OK then replace the CPU. Also check for CPU to memory writes (Pins 46 to 49 CPU). If ACK writes are static or if nothing on scope the 2 Meg ram could be faulty or have dry joints. - Replace 2 Meg Memory, CPU or ROM. -When powered up the machine keeps resetting, like if you have pressed the reset button. The PSU has a fault. - Replace PSU.
Optical Block problems
-No spin, No laser spot, Voltages ok. - CN702 pin12 should have 3.5v. If not Check Resistor near pin 12 for an open circuit. If so then replace. Also applies to SCPH 7502 models.
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PATILLAJE
Integrado IC 204 (PSX 7502, 7002)
Pin 1 - 53.203 Mhz
Pin 2 - Tierra(gnd)
Pin 3 - 17.733 Mhz
Pin 4 - 17.733 Mhz
Pin 5 - 67.737 Mhz
Pin 6 - 4.433 Mhz (FSC) al pin 15 del IC502
Pin 7,8 - 3,4volts +
Definición integrados(PSX 7502, 7002)
IC722 - Focus/tracking coil drive, Motor drive for optical block
IC723 - RF amp laser drive
IC732 - Procesador de señal Sigital de Audio
IC310 - DRAM para Audio
IC502 - Conversor video digital a analógico
IC402 - Amplificador Audio
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