Sony Playstation Repair Procedures PSX 9000 series

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2 Δεκ 2013 (πριν από 3 χρόνια και 9 μήνες)

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Sony Playstation Repair Procedures

PSX 9000 series

Firstly check all the fuses for a continuity and when powered up the correct voltages. Have a frequency counter
and make sure the correct frequency is

displayed at the external oscillators. Also check the
voltage regulators for correct output.

The 9000 series is almost the same as the 7502. The problems found in the 7502 can be applied to the 9000
series.

Graphics

This board suffered from dry joints on the CPU 2 Meg RAM. The problem was that when the shield
ing 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) write
s 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, Volta
ges 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.


Sony Play
-
station Repair Procedures

PSX 7502, 7002 series

Graphics

• Freezing up for a few seconds, then u
n
-
freezing, some sound working while frozen


IC203, IC103 reflux or
replace

• Boot in to first screen and menu screen ok. Boot from CD in to PSX black logo screen, flickers


IC103

• Looks like Monitor not tuned in. See some of the logo


IC502 replace or

D501, D502, D503

• At fist boot screen orange diamond has unusual triangles, PSX logo screen has jumbled writing


IC106 or
IC103, IC203 replace

• Orange diamond at boot with jingly audio, graphics fault


GPU replace

• Green screen at power up


PSU repl
ace

• Black screen and hums


IC103 replace

• White Screen, Sound ok, Seems to be booting ok


IC201

• Slow boot, no sound, stuck on logo


PS603 replace

• Look like the monitor need retuning at power up


IC204 replace

• Boots in to logo screen, then stop
s, sound ok


PS601 replace

• Boots up ok, takes a long time to go through boot screens, Movies slow, games slow


IC732 replace

• Machine resets when door switch is pressed
-

PSU faulty

• Orange diamond to the left of screen at first boot screen, un reada
ble text in PSX logo screen


IC103 reflux or
replace

• Black screen at power up, sound hums
-

IC103 reflux or replace

• Long spike type of triangles in games and at the PSX logo screen


IC103 reflux or replace

Optical Block Problems

• No laser, OB moveme
nt and spin


Check PS603 for continuity

• CD in fast spin at power up


Q609 replace or IC722 faulty

• No lens movement, laser ok, spin ok


IC732 reflux or replace

• No laser, spin ok, lens movement ok


IC732 replace or Q609 (3.5v regulator)

• Not readi
ng CD `s
-

IC722 or IC732

• Reading as CD Audio when data CD inserted


check for track and SMD damage near IC732

• Jerking movies


replace OB or reflux IC732 or replace

• OB clicking after a few minutes of play


OB replace

• Some CD `s loading and some
don’t


Check for missing SMD around IC732 (near chipping points)

• No spin, laser ok, lens movement ok


IC732, IC722 replace

Audio problems

• Abnormal sound at boot, no spin from OB


PS603 faulty

• Abnormal sound at boot, not loading menus. Seems to loc
k up randomly


IC103 reflux or replace

IC layout

IC722


Focus/tracking coil drive, Motor drive for optical block

IC723


RF amp laser drive

IC732


Digital Audio signal processor

IC310


DRAM for Audio

IC502


Video digital to ....ogue converter

IC402


Audio Amp

IC 204 pin outs

Pin 1
-

53.203 Mhz

Pin 2


Ground

Pin 3


17.733 Mhz

Pin 4


17.733 Mhz

Pin 5


67.737 Mhz

Pin 6


4.433 Mhz (FSC) to pin 15 of IC502

Pin 7,8
-

3,4volts +

Fuses

PS601 = 8v+, PS602 = 8V+(Pads), PS603 = 8v+, PS604 = 3.5v+, PS605 = 3
.5v+ (cursor).

IC502 outputs

Pin 3 = Red out, Pin 4 = Green out, Pin5 = Blue out, Pin 6 = Y out, Pin 7 = C out, Pin 8 = V out


Sony Play
-
station Repair Procedures

PSX 5000 series

Optical Block problems NOTE!!!! Optimal RV703 position 11 o’clock

• No vertic
al 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 fus
e.

• 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

• Dis
k 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. Af
ter 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

Misc problems

• Hardware boot very slow


Check pin 8 on IC708 for 3.5v, Pin 5 for 1.7v If no volts then replace Q611
transistor on side (B). Make sure that the 5V rail is also up too.

• Power supply!

• No picture, Aud
io OK


IC 501

• Irregular sound, sticking graphics


Change OB or replace IC308

• No hard ware logo but echo sound


Replace IC103 (CPU)

• Low or distorted sound


Replace IC310, check pin 6 of IC402 for output.

• Loads all but games, IC103, 203,IC304

• “
Please insert disk” on screen


IC305, IC706

• Hang on first hardware screen


IC305

• No 8 volt to CN 701


PS602

Audio problems

• Sound jingly at boot


IC308

• Noisy sound


IC310, IC402

• Check pin6 of IC402 for 16.000 Mhz

• Very distorted Audio in mov
ies only. Games Audio ok


IC305 replace

• No sound at boot screens and at Hard ware Menu, Movies and games OK


IC310 replace

Graphics Problems

• Vertical faint lines surrounding text at hardware logos in


GPU failure or loose pins of IC201 or DAC joints

• Corrupt wording Software logo, then blank


IC305

• At boot or switch on, graphics like the TV is off frequency


check fuse (PS605)

• Black screen up on boot
-

Check X201, GPU (53.203MHZ) oscillator, CPU (67.737MHZ) oscillator for output
or replace, Re
-
flow GPU, CPU, Mask ROM or IC305.

Try re
-
flowing main memory. Some times it could be the power supply!

• White screen at boot, sound ok


IC201

• Random black triangles, only in games


Re
-
flow or replace IC103

• No colour


X201 off frequency or IC501, ch
eck IC501 pin 6 for 3.58 MHZ and also pin 153 of IC203 for
4.433 MHZ

• Picture freezes when selecting games


IC 106,7,8,9, IC103

• Jumping unstable graphics


Replace IC201, IC203

• Black and White, No colour


replace X201 also check pin 156 of GPU for a
pprox 4Mhz

• Sticks on Hardware Logo, Echo sound at end


replace IC305 or CPU Blank after copyright/piracy screen


IC304

• Jumping and unstable graphics


IC201 or IC203 reflux or replace

• Blank, black picture on screen, Sound at boot ok


IC501 replace

• No picture, or at first SONY screen, and a long Echoed sound at boot
-

IC103 (CPU) reflux or replace

• Random Black triangles in games only


IC103 reflux or replace

• At first power up, or at reset, Graphics is like if the monitor isn’t tuned in correc
tly


PS605 fuse high
resistance

• Hard ware boot ok, Spin up ok, text missing at SONY logo screen, then stops


IC305

• Boot logo ok, PSX logo ok, then blank screen


IC103 reflux or replace

• No text in Hard ware screen and Menu screen


Replace CPU

Curs
or related problems

• No Port 1 and port 2 cursor


PS605 5XXX card 0 or 1 error


D107, check all diodes for short.

Clocking points

1. Pin 68 of IC701, (4.19 Megs) to pin 14 of IC304 (mclk)

2. Pin 89 of IC308, (16.9344 Megs) to pin 6 of IC402. Pin 77 of I
C305 and pin 62 of IC701.

3. Sys clock to pin 83 of IC701 (33.868 Megs).