Adjustment; 3-1.Adjustment And Check Specification; Notice - PlayStation SCPH-7501 - Game Console Service Manual

Reproduction Prohibited
SECTION 3

ADJUSTMENT

3-1. Test Specification
RF Level 0.90 to 1.35 Vp-p (Test point : Between CL704 and CL710)
• RF signal waveform (Eye pattern)
Use SCD-2700 DISC when measured RF level.
Use an oscilloscope with input impedance over 10 M
RF Jitter Less 9.0 nS (Measuring with KSM- 6135S JITTER METER.)
Less 27.0 nS (Measuring with KSM- 6235S JITTER METER.)
PP Level 1.1 ±0.6 Vp-p (Test point : Between CL776 and CL710)
Use LPF (fc = 10 kHz)
Tracking Level 1.3 ±0.6 Vp-p (Test point : Between CL709 and CL710 )
Caution Vc Line (CL710) do not wire to other lines together.
Caution. Vc Line (CL710) do not make common use with GND line.
Test Point for PU-23 Board.
CL710
1
C741
CL790
CL709
53
C761
52
CL791
CL711
CL704
CL760
CL709
C716
CL704
R717
CL727
C729
C725
CL727
15
C718
FB702
CL784
4
CN701
FB701
CL785
14
CL787
FB704
11
VOLT/DIV : 0.2 V
TIME/DIV : 500 nS
0.90 to 1.35 Vp-p
0 V
CL776 CL706
5 9 13 15
CL777
CL776
CL708
CL778 CL780
CL775
CL706
CL779
CL316
CL710
Q701 CL728
C738
CL728
C739
1 R727
HA002
CL786
1-674-987- 1-674-987-
12
Circuit Notes :
: B+ Line.
Voltages are measured with a Digital Multimeter. (Input impedance over 10 M .)
Waveforms easured with an Oscilloscope DC coupled.
Semiconductors.
In each case. u : µ, for example ; uA : µA, uPA : µPA, uPB : µPA, uPC : µPA.
Unit Descriptions :
Capacitors.
Unit of Capacitor is µF and pF, for example ; uF : µF, pF : µµF.
Resisters.
Unit of Resistor is .
Inductance.
Unit of Inductance is µH and mH
Parts List Notes:
Due to standardization, Parts may be different from the parts described in the diagrams or used on
the Set.
Attention :
Dielectric voltage withstand test and Insuiation resistance test.
After repair complete. Dielectric voltage withstand test and Insulation resistance test to be con-
ducted according to the regulation of IEC-65 EN60065 or UL1492 or
About replacement of Optical Device.
Before exchanging the Optical Device, Check the RF level, Jitter, Eye pattern, Focus gain and
Tracking error. When Optical Device is meet the specification, Playback the PS1 testing disc
"QA-DISC" or "AGING DISC" for checking the double speed and sled mechanism ability.
Optical Device should have to no exchange when spacification and ability are satisfied.
— 4 —
SECTION 4

NOTICE

SCPH-9000
SERIES
.