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Philips 107P2 CM25 GSIII User manual

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17" Auto scan Colour Monitor Chassis :CM 2500
Horizontal frequencies
30-92kHz
Service
Service
Service
TABLE OF CONTENTS
©GB 3138 106 10113
107P2 CM25 GSIII
107P20/00
DDC/Power saving/TCO
User-friendliness Control
Description Page
Important Safety Notice ------------------------------- 2
Technical Data ------------------------------------------ 3
Installation ----------------------------------------------- 4
OSD Menu tree structure ---------------------------- 5
OSD Adjustments ----------------------------------- 6-14
Warning and Notes ------------------------------------ 15
Mechanical Instructions ------------------------------ 16
Wiring Diagram----------------------------------------- 17
DDC Instructions --------------------------------- 18~21
Electrical Adjustments -------------------------- 23~25
Safety test requirements (Hipot & Ground)--------26
DDC Data--------------- ---------------------------------22
Block Diagram & Control Panel C.B.A.-------------27
Description Page
Video Panel(A) Schematic Diagram & Waveforms---28
Video Panel C.B.A------------------------------------------29
Main Panel C.B.A. (B1,B2,B3,C)- -----------------------30
Deflection Panel (B1) Schematic Diagram-------------31
H-Voltage(B2) Schematic & Waveforms(B1,B2,B3)--32
CPU(B3) Schematic Diagram ----------------------------33
Power Supply(C) Schematic Diagram & Waveforms-34
Repair Tips ---------------------------------------------------35
Exploded View ---------------------------------------------- 36
Recommanded parts List --------------------------------- 37
Spare parts list------------------------------------------ 38~44
General product specification------------------------45~67
Repair flow chart----------------------------------------68~75
LightFrame for Windows-----------------------------------76~77
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC
EQUIPMENT CONTAINING HIGH VOLTAGES.
IMPORTANT SAFETY NOTICE
2107P2 CM25 GSIII
Proper service and repair is important to the safe, reliable
operation of all PHILIPS Company** Equipment.
The service procedures recommended by PHILIPS and
described in this service manual are effective methods
of performing service operations. Some of these service
operations require the use of tools specially designed for
the purpose. The special tools should be used when and
as recommended.
It is important to note that this manual contains various
CAUTIONS and NOTICES which should be carefully
Read in order to minimize the risk of personal injury to
service personnel. The possibility exists that improper
Service methods may damage the equipment. It also is
important to understand that these CAUTIONS and
NOTICES ARE NOT EXHAUSTIVE. PHILIPS could not
possibly know, evaluate and advise the service trade of
all conceivable ways in which service might be done or of
the possible hazardous consequences of each way.
Consequently, PHILIPS has not undertaken any such
broad evaluation. Accordingly, a servicer who uses a
service procedure or tool which is not recommended by
PHILIPS must first satisfy himself thoroughly that
neither his safety nor the safe operation of the equipment
will be jeopardized by the service method selected.
* * Hereafter throughout this manual, PHILIPS Company
Will be referred to as PHILIPS.
Critical components having special safety characteristics
are identified with a by the Ref. No. in the parts list
and enclosed within a broken line* (where several critical
components are grouped in one area) along with the
safety symbol on the schematics or exploded views.
Use of substitute replacement parts which do not have
the same specified safety characteristics may create
shock, fire, or other hazards.
Under no circumstances should the original design be
modified or altered without written permission from
PHILIPS. PHILIPS assumes no liability, express or
implied, arising out of any unauthorized modification
Of design.
Servicer assumes all liability.
WARNING
* Broken Line
FOR PRODUCTS CONTAINING LASER :
Invisible laser radiation when open.
AVOID DIRECT EXPOSURE TO BEAM.
Use of controls or adjustments or
performance of procedures other than
those specified herein may result in
hazardous radiation exposure.
The use of optical instruments with this
product will increase eye hazard.
DANGER-
CAUTION-
CAUTION-
TO ENSURE THE CONTINUED RELIABILITY OF THIS
PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S
REPLACEMENT PARTS, WHICH ARE LISTED WITH
THEIR PART NUMBERS IN THE PARTS LIST SECTION
OF THIS SERVICE MANUAL.
Go to cover page
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76
107P2 CM 25 GSIII
Go to cover page
Forward
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LightFrame for Windows™
Introduction
Definitions
Compatibility
Language Selection
Installation
Philips LightFrame feature enriches the experience of pictures and
video on a Philips CRT (picture tube) monitor. This highlighting is done
by boosting the brightness and sharpness on a selected region of the
monitor screen. Since high brightness and sharpness are not preferred
for most standard Windows applications, this special feature will only be
active in certain circumstances. So that you can control these
circumstances, a special program and icons will be installed in your
Windows operating systems.
Philips LightFrame will only work with monitors that have been built to
use this software. Earlier Philips monitors or other manufacturers’
monitors will not work with this special software. It is recommended that
you install this software only on a Philips monitor designed to use it.
These monitors can be identified by the LightFrame™ logo on the front
of the monitor.
This software is not designed for use with LCD flat screen monitors.
LightFrame will work with true Windows-based programs and DOS-
based programs that operate in a Window’s environment. It will not work
with DOS-based programs operating only in a DOS environment.
The following list contains definitions for frequently used words.
Highlighted window: The selected window on which LightFrame is
active.
Highlighted area: The selected rectangle (area) on which
LightFrame™ is active.
This version of LightFrame™ is compatible with
Windows 95
Windows 98
Windows NT
Windows 2000 Professional Edition.
While English is the default language of LightFrame™, the User
Interface can be set up to operate in Dutch, French, German, Italian,
Portuguese, or Spanish.
1) To install LightFrame™, place the CD in the CD-ROM drive.
2) Next, when the menu of items on the CD appears on your screen,
click on 'Install LightFrame '.
3) Now, follow the on-screen prompts to properly install the program.
The software checks to see if you have a compatible monitor. You
must say yes to the license agreement for the software to install.
4) After installation, LightFrame automatically loads and the icon
appears in the taskbar.
LightFrame is installed in the Start menu, under Programs. Unless
otherwise selected during installation, LightFrame is installed in
“C:\Program Files\Philips\LightFrame.” A shortcut is installed in the
StartUp folder and on the desktop. (If needed, LightFrame can be
operated manually from the StartUp folder.)
If LightFrame detects that your monitor is not LightFrame
compatible, an message appears on the monitor screen. See Error
Message number 1 under the heading Error Messages. If you see this
message, you can select to abort or continue the installation. However,
if you continue the installation, LightFrame will probably not work on
the monitor.
™
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Notes
Notes
Uninstall
Operating LightFrame
Icon and Colors
How To Activate LightFrame
How to Deactivate LightFrame
Should you need to remove the LightFrame software, please follow
these steps.
1) First, click on the Start Menu.
2) Next, highlight Settings.
3) Then, click on Control Panel.
4) Now, click on Add/Remove Programs
5) Finally, select LightFrame from the list and then click on the
Add/Remove button.
After installation, LightFrame starts up automatically whenever the
computer is started. At system start up, LightFrame checks the
selected resolution of the monitor and if the monitor is LightFrame
capable.
An icon of a monitor represents LightFrame on your desktop. This icon
appears as a shortcut on the Windows desktop. LightFrame has three
(3) modes of operation: Active, Inactive, and Suspended. The same icon
with a different color in its center represents each mode.
Active = The LightFrame icon has bright green center.
Inactive = The icon has a gray center.
Suspended = The icon has a yellow center with a red cross.
An active window must be 100% visible, i.e. it must be on top of all other
windows or areas. If any part of another window or area overlaps a
highlighted window, LightFrame automatically suspends operation.
That means the icon goes from a green center to a yellow on with a red
cross and the feature ceases. Once that window or area is removed and
the original highlighted window is on top again, LightFrame
automatically re-engages and the icon regains its bright green center.
An active window must also be 100% on the monitor’s viewing area. If
part of a highlighted window moves off the monitor’s viewing area,
LightFrame automatically goes into the Suspended mode. If part of a
window is off the viewing area, you will not be able to use LightFrame
on that window.
Only one window or area at a time can be highlighted.
1) Click on the LightFrame icon in the systemtray (the area to the far
right in the taskbar). . The icon will turn from gray to a green center.
2) Guide the mouse to the window you want displayed. As you move the
mouse, the cursor changes to a small arrow with a light bulb.
3a) Click on the window you want to have highlighted. The brightness
and sharpness are automatically adjusted.
3b) If you want to highlight only an area of a window, click on the left
mouse button and drag the cursor over the area to be highlighted
while holding the mouse button. A rectangle forms around the area.
When the area is encompassed by the rectangle, release the mouse
button and the area becomes highlighted.
To deactivate, click on the LightFrame icon in the System Tray of the
Taskbar. The light in the middle of the icon turns gray and LightFrame
is deactivated.
If a highlighted window is closed before LightFrame is deactivated,
LightFrame is automatically deactivated.
™
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Notes
Note
77
107P2 CM 25 GSIII
Go to cover page
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LightFrame for Windows (Continued)™
Right-Click Features
LightFrame is Suspended When...
Error Messages
On the LightFrame icon in the taskbar, click the right-side mouse
button to bring up a menu from which you can select:
which tells you something about LightFrame
which takes you to the Help screen where you can find additional
information
which exits the LightFrame Program.
If you select exit and the color in the center of the icon is green, it will
turn gray and LightFrame is deactivated. If you select exit an Exit
message appears asking you if are sure you want to exit. Select "Yes" to
exit or “No” to abort the exit. If you select Yes, you can always restart
LightFrame by clicking on the desktop shortcut icon.
LightFrame goes into the Suspended mode as soon as a screensaver
becomes active on your computer. This is true even though the monitor
icon may still have a green center. LightFrame becomes active again
as soon as the screen is reawakened and the screensaver quits.
The same is true when the computer goes into Sleep mode or Deep
Sleep (Power Off) mode. LightFrame goes into Suspended mode and
reawakens when the monitor is reawakened.
LightFrame suspends when a highlighted window is minimized.
LightFrame reactivates when the highlighted window is again
maximized or restored to its previous size.
LightFrame suspends if a window that is not highlighted overlaps a
highlighted window. LightFrame reactivates once the highlighted
window is again on top.
If the monitor is “hard powered off” while a window or area is highlighted
and then hard powered on again, LightFrame is no longer active. The
icon may still show the feature as still active. In this case, you have to
exit LightFrame and restart it via the icon on the desktop or the Start
menu.
If the Monitor is Detached and Another Monitor is Attached
You may see this message when you install LightFrame .
Error Message 1 dialog box here
LightFrame™ cannot detect a monitor which supports this feature. You
can still proceed with the software installation but LightFrame™ might
not run on your system.
You may see this message when you try to switch monitors.
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If the monitor is detached from the computer while a highlighted window
or area is displayed and then another monitor is attached, the system
will have to be rebooted so that Philips’ LightFrame™ can detect the
monitor’s LightFrame™ capabilities and store the setup information
about the new monitor. If the monitor is not LightFrame™ capable, an
Error message appears. See Error Message 2 under the heading Error
Messages. You can abort or continue the set up. However, if you
continue, LightFrame™ may not work with the monitor.
™
About...
Help
Exit
Screensaver, Sleep mode, Deep Sleep (Power Off) mode is
Activated
Screen or Area is Minimized
Another Window or Area Overlaps Highlighted Window or Area
Miscellaneous
Monitor Turned Off
™
Error Message 2 dialog box here
LightFrame™ cannot detect a monitor which supports this feature. You
can still start the software but LightFrame™ may not work.
68
107P2 CM 25 GSIII
A. Power Supply Failure
1. Symptom :
no startup sound
LED light off
check 7106 pin1
100V<pin1<380V
check 7106
pin14 > 2V
Ok
NO
check 7106
pin 8=2.4V
3131=24kohm
check
1101/6102/
7105
Ok
NO
check
3121/3122/1106
3124/2121/3136
replace 7106
NO
check 7106
pin4 output ?
OVP possibly active
check 6115
2. Symptom :
hicup mode with
startup sound or
blinking LED
OPP possibly active
check 3115,3116,
3117,3118,6116,3127
check 7106
pin 6 < 13.5V
check 7103
open circuit
Ok
replace 7106
check
6165/3113/
3114/7105
Ok
NO
OK
No
replace 5101
No
check 7153 pin3
voltage dip
check 7153 pin1
12V< pin1 < 15V
check 7106
pin 5 < 0.5V
OK
check
6162/3170/3171
3173/7157/2165
No
check
+5V loading current
Turn power off
check the resistance for
all output voltages+180,
80,13,-13,-6.1,+5,+8 V
check 6148~6159 short?
replace 5101
check
7157/7155/7113/7154
3. Symptom:
abnormal sound
check 7105
drain waveform
right?
check
frequency
F=72.5KHZ
check
3131=24K
No
Ok
Ok
No
check
6103/3111/6103/
6108/2128/3112
replace 5101
No
OK
7106 pin14 OOB
possibly active
short 7155 pinC
check CPU pin 22
and 7805 emitter
Ok
NoOk
check
3128/6107
/6115
check
pin6>8V
Repair Flow Chart
Go to cover page
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69
107P2 CM 25 GSIII
Repair Flow Chart (Continued)
B. Video
Repair Flow
check 7301
pin11 FLB
1.Symptom :
(with white pattern)
no picture
green LED on
check
EHT=25KV
rough check for R, G, B
1. video input= 0.7V
2. 7301video output =2.5V
3. 7701 video output= 35V swing
check 7301
pin5 CLBL
check DC restoration
7722,7732,7752
7721,7731,7751
check 7301 pin24
2V< ABL < 5V
check 7301
pin 6,8,10
input swing
check 7701
pin8,9,11
input swing
Ok
replace 7701
Ok
replace IF
cable
No
replace 7301
check
VG1 < -150V
Ok
No
check blanking
7503 pin16
check heater
=-6.1V Ok
check Xray prot.
7503 pin2
No
check
R,G,B output
30<2725<80
30<2733<80
30<2753<80
Ok
2.Symptom :
no video (or dim),
only raster with/without retrace line
green LED on
check Vg1
Vg1=0V
check cathod
+80V/+180V
Ok
check blanking
7503 pin16
No turn down Vg2
check 7701
pin 1,3, 5
output swing
check
7304 pin10
VFLB
3. Sympton :
no OSD or
OSD out of sync.
check 7301
pin 2,3,4 input
check
7301 pin1
check 7304
pin2 VCO
pin3 RP
check 7304
pin5 HFLB
replace 7301
Ok
No
replace 7304
No
check 7304
pin 7,8(IIC)
check
7503 pin16
Ok
No
check
VG2 > 350V
OkNo
check
7304 pin12 Ok
Go to cover page
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70
107P2 CM 25 GSIII Repair Flow Chart (Continued)
C. Horizontal deflection
output repair flow :
1. Symptom :
without
H-deflection.
2. Symptom :
East /West
corr.
check Hsync
7503 pin6
check Hsync
7503 pin8
check Hsync
7604 base
check Hsync
7605 gate
refer 7503 check list
or replace 7503
No
4. Symptom :
rotation
check 7611
pin 5,6,7
check
7609
enter factory mode
check linearity data
in eeprom
check 7611
pin 1,2,3
check
3622/3625/
7609 collector
check 7503
pin11
parabola exist
check
7608/7607/
7606
parabola exist
3. Symptom :
H-linearity
(full freq. range)
replace 7611
check
7626,7627
refer 7503
check list
5. Symptom :
H_dc shift
check
7608,7610
check
7503 pin 32
enter OSD
function
disable moire
check
7631collector
check
7607 collector
7606 emitter
6. Sympton :
Focus
refer cpu
check list
check cpu
pin 4,5,6
check cpu
7801 pin38
control range
check
3684/3686
/3681
check cpu
7801 pin2
control range
check
7624/3655/5609
Go to cover page
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71
107P2 CM 25 GSIII
Repair Flow Chart (Continued)
D. Vertical Deflection Failure
check
7503
pin 12, 13
basic check
+13/-13V
Symptom :
one horizontal line
V_size is abnormal
too large/small (small)
check 7404
pin1,pin7 ramp
exist ?
check
+78V,
good?
replace
7503
No
Ok
Ok
check
3401,3402
No
Go to cover page
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72
107P2 CM 25 GSIII
Repair Flow Chart (Continued)
E. CPU
check list
check cpu pin 6/pin 5=5V
pin 8/pin 9=12MhZ
pin27 pin20
normal hi hi
standby low hi
off low low
18. Hunlock
check pin 4
pwm from 0V to 5V
Basic Check
2. H-Centering
check Q1-Q5
low:0
hi :1
3. ABL-Adj
4. H-linearity
14, 13, 12, 11,10
(Q5,Q4, Q3,
Q2,Q1)
S-cap switch
check pin 3
pwm from 0V to 5V
check pin2
pwm from 0V to 5V
check pin18
normal=Hi
blank=low
27, 20 P.S.
LED check pin20/27
19. Blank
check pin19
normal : low
change timing : Hi
Hor. Freq.(KHz) Q5 Q4 Q3 Q2 Q1
~33.24 0 0 0 0 0
33.24~36.51 0 1 0 1 0
36.51~40.60 0 1 1 0 0
40.60~45.07 1 0 0 0 0
45.07~47.62 1 0 0 1 1
47.62~51.49 1 0 1 1 0
51.02~55.07 1 0 1 1 1
55.07~61.96 1 1 0 0 0
61.96~66.29 1 1 0 1 0
66.29~71.00 1 1 0 1 1
71.00~76.00 1 1 1 0 0
76.00~82.96 1 1 1 0 1
82.96~89.00 1 1 1 1 0
89.00~0xffff 1 1 1 1 1
Go to cover page
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73
107P2 CM 25 GSIII
Repair Flow Chart (Continued)
24. Selftest
check pin 24
1.no H/V sync & IF cable pin5 floating - show msg.
2.H/V sync exist & IF cable pin5 to ground - normal
3.H/V sync non-exist & IF cable pin5 to gnd - power saving
4.connect a 15k resistor with IF cable pin5 - factory mode
5.connect a 5k1 resistor with IF cable pin5 - burn in mode
check idle status
sda=pin 25=hi
scl=pin 26=hi
25, 26. DDC bus
check idle status
sda=pin 31=hi
scl=pin 32=hi
31, 32. IIC bus
check key
Enter,+,-,bri,con keys
23. Keypad
check
pwm from 0V to 5V
38. Rotation
check
pwm from 0V to 5V
37. Brightness
check
7804 M24C16-BN6
7503 TDA4841
7304 MTV018-27
7301 TDA4886
check
5V
5. Reset
check
active=hi
no active=low
22. Degauss
Go to cover page
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