Grundig WF70-3020 User manual

SERVICE MANUAL
Design and specifications are subject to change without notice.
COLOR TELEVISION RECEIVER
WF70-3020
ORIGINAL
MFR’S VERSION A

6. AVOID AN X-RAY1. KEEP THE NOTICES
5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE
In the condition that an explosion-proof cathode-
ray tube is set in this equipment, safety is
secured against implosion. However, when
removing it or serving from backward, it is
dangerous to give a shock. Take enough care to
deal with it.
Safety is secured against an X-ray by consider-
ing about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage pe-
ripheral circuit, use the designated parts and
make sure not modify the circuit.
Repairing except indicates causes rising of high
voltage, and it emits an X-ray from the cathode-
ray tube.
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
Inferior silicon grease can damage IC's and transistors.
When replacing an IC's or transistors, use only specified silicon grease (YG6260M).
Remove all old silicon before applying new silicon.
IMPORTANT
HOW TO ORDER PARTS
SERVICING NOTICES ON CHECKING
As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a mark, the designated
parts must be used.
PUT PARTS AND WIRES IN THE
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING
4.
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
7. PERFORM A SAFETY CHECK AFTER
SERVICING
Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
1.
2.
3.
4.
Unplug the plug from the AC outlet.
Remove the antenna terminal on TV and turn
on the TV.
Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].
If the insulation resistance is less than 1M
ohm, the inspection repair should be
required.
[Note 1]
If you have not the 500V insulation
resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
A1-1
Licensed by BBE Sound, Inc. under USP4638258 and 4482866.
BBE and BBE symbol are registered trademarks of BBE
Sound, Inc.

CONTENTS
A2-1
SERVICING NOTICES ON CHECKING......................................................................................................
HOW TO ORDER PARTS ...........................................................................................................................
IMPORTANT................................................................................................................................................
CONTENTS .................................................................................................................................................
GENERAL SPECIFICATIONS ....................................................................................................................
DISASSEMBLY INSTRUCTIONS
1.REMOVAL OF ANODE CAP ...............................................................................................................
2.REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ................................................................
SERVICE MODE LIST.................................................................................................................................
CONFIRMATION OF USING HOURS.........................................................................................................
WHEN REPLACING EEPROM( MEMORY) IC ...........................................................................................
ELECTRICAL ADJUSTMENTS ..................................................................................................................
MAJOR COMPONENTS LOCATION GUIDE .............................................................................................
BLOCK DIAGRAM ......................................................................................................................................
PRINTED CIRCUIT BOARDS
MAIN/CRT..........................................................................................................................................
POWER .............................................................................................................................................
SCHEMATIC DIAGRAMS
MICON/TEXT/TUNER .......................................................................................................................
VIF/SIF/CHROMA ..............................................................................................................................
21PIN .................................................................................................................................................
NICAM/DOLBY/SOUNDAMP/BEE ....................................................................................................
CRT/SVM ...........................................................................................................................................
DEFLECTION ....................................................................................................................................
POWER .............................................................................................................................................
WAVEFORMS .............................................................................................................................................
MECHANICAL EXPLODED VIEW ..............................................................................................................
MECHANICAL REPLACEMENT PARTS LIST ..........................................................................................
ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................
A1-1
A1-1
A1-1
A2-1
A3-1~A3-3
B1-1
B2-1, B2-2
C-1
C-1
C-2
D1-1~D3-1
D3-1
E-1, E-2
F-1~F-4
F-5~F-8
G-1, G-2
G-3, G-4
G-5, G-6
G-7, G-8
G-9, G-10
G-11, G-12
G-13, G-14
H-1~H-3
I-1, I-2
J1-1
J2-1~ J2-3

GENERAL SPECIFICATIONS
G-1 TV CRT CRT Size / Visual Size 28 inch / 656.7mmV
System CRT Type FLAT
Deflection 102 degree
Magnetic Field BV/BH +0.45G/0.18G
Color System PAL
Speaker 2 Speaker
Position Front
Size 1.8 x3.9 Inch
Impedance 8 ohm
Sound Output MAX 10.0+10.0 W
10%(Typical) 9.0+9.0 W
PAL60Hz Yes
G-2 Tuning Broadcasting System U.K. System I
System Tuner and System 1Tuner
Receive CH Destination Ohers
Tuning System F-Synth
Input Impedance VHF/UHF 75 ohm
21 - 69
CH Coverage
Intermediate Picture(FP) 39.5MHz
Frequency Sound(FS) 33.5MHz
FP-FS 6.0MHz
Preset CH 80
Stereo/Dual TV Sound Yes
Tuner Sound Muting Yes
G-3 Power Power Source AC 230V-240V AC 50Hz
DC
Power Consumption at AC 114 W at AC 230 V 50 Hz
Stand by (at AC) 8.5 W at AC 230 V 50 Hz
Per Year -- kWh/Year
Protector Power Fuse Yes
G-4 Regulation Safety CE(EN60065:98)
Radiation CE
X-Radiation -
G-5 Temperature Operation +5oC ~ +40oC
Storage -20oC ~ +60oC
G-6 Operating Humidity Less then 80% RH
G-7 On Screen Menu Yes
Display Menu Type Character
Picture Yes
Contrast Yes
Brightness Yes
Colour Yes
Tint No
Sharpness Yes
Audio Yes
Bass Yes
Treble Yes
Balance Yes
BBE On/Off Yes
Stable Sound On/Off No
CH Tuning Yes
Matual Yes
Auto Yes
CH Allocation No
Language Yes
Clock Set No
On/Off Timer Set No
Pin Code Registration Yes
Nicam Auto Off Yes
Colour System No
Sound System No
Auto 4:3 Default Yes
AV2 Output Source Yes
Control Level Yes
Volume Yes
Brightness Yes
Contrast Yes
Colour Yes
Tint (NTSC Only) No
Sharpness Yes
Tuning Yes
Bass Yes
Treble Yes
Balance Yes
Back Light No
Nicam ST Yes
Tone 1/2 Yes
Surround On/Off No
Pin Code Yes
AV Yes
Skip Yes
Channel Yes
Hotel Lock No
Sleep Timer Yes
Wide Mode Yes
Sound Mute Yes
A3-1

GENERAL SPECIFICATIONS
G-8 OSD Language English French Spanish
Germany Italian
OSD Language Setting English
G-9 Clock and Sleep Timer Max Time 120 Min
Timer Step 10 Min
On/Off Timer Program(On Tim / Off Tim) No
Wake Up Timer No
Timer Back-up (at Power Off Mode) more than -- Min Sec
G-10 Remote Unit RC-DN
Control Glow in Dark Remocon No
Format NEC
Custom Code 80-63 h
Power Source Voltage(D.C) 3V
UM size x pcs UM-4 x 2 pcs
Total Keys 33 Keys
Keys Power ( Stand By ) Yes
1 Yes
2 Yes
3 Yes
4 Yes
5 Yes
6 Yes
7 Yes
8 Yes
9 Yes
0 / AV Yes
CH Up No
CH Down No
Volume Up / + Yes
Volume Down / - Yes
Quick View No
Sleep Yes
Info ( CH Call ) Yes
Normal No
Menu Yes
Enter Yes
Mute Yes
Dolby Virtual On/Off No
Wide Yes
Auto No
Position Yes
Fine Tuning + No
Fine Tuning - No
Tone 1/2 No
T'TEXT Keys TEXT / MIX / TV Yes
CH Up / Page Up Yes
CH Down / Page Down Yes
Red Yes
Green Yes
Yellow / Fine Tuning - Yes
Cyan / Fine Tuning + Yes
F/T/B(Expand) / Normal Yes
Reveal / Skip Yes
Display Cancel Yes
Reset Yes
Reset / Tone 1/2 No
Hold / Status Yes
Sub Page / Quick View Yes
G-11 Features Auto Degauss Yes
Auto Shut Off Yes
Canal+ No
CATV No
Anti-theft(Back Up 30 Min.) Yes
Memory(Last CH) Yes
Memory(Last Volume) Yes
BBE Yes
Auto Search Yes
CH Allocation No
Channel Lock No
Just Clock Function No
Game Position No
CH Label No
VM Circuit Yes
Full OSD No
Unitext No
Fastext Yes
Top Text No
Premiere No
Comb Filter No
Lines
Auto CH Memory No
Stable Sound No
Auto Set Up Yes
FBT Leak Test Protect No
Double Focus & Dynamic Focus Yes
Wss Signal Wide Change Yes
Virtual Dolby Surround No
Hotel Lock No
A3-2

GENERAL SPECIFICATIONS
G-12 Accessories Owner's Manual Language English
w/Guarantee Card No
Remote Control Unit Yes
Rod Antenna No
Poles Pole
Terminal type
Loop Antenna No
Terminal -
U/V Mixer No
DC Car Cord (Center+) No
Guarantee Card No
Warning Sheet Yes
Circuit Diagram No
Antenna Change Plug No
Service Facility List No
Important Safeguard No
Dew/AHC Caution Sheet No
AC Plug Adapter No
Quick Set-up Sheet Yes
Battery Yes
UM size x pcs UM-4 x 2 pcs
OEM Brand No
AC Cord No
AV Cord (2Pin-1Pin) No
Registration Card No
PTB Sheet No
300 ohm to 75 ohm Antenna Adapter No
G-13 Interface Switch Front Power (Tact Sw) No
System Select No
Main Power SW Yes
Sub Power No
Channel Up No
Channel Down No
Volume Up No
Volume Down No
Rear AC/DC No
TV/CATV Selector No
Degauss No
Main Power SW No
Indicator Power No
Stand-by Yes
On Timer No
Terminals Front Video Input No
Audio Input No
Other Terminal No
Rear Video Input(Rear1) No
Video Input(Rear2) No
Audio Input(Rear1) No
Audio Input(Rear2) No
Video Output No
Audio Output No
Euro Scart(21Pin) Yes ( x2 )
Component Input No
Diversity No
Ext Speaker No
DC Jack 12V(Center +) No
VHF/UHF Antenna Input D Type
AC Outlet No
G-14 Set Size Approx. W x D x H (mm) 749 x 490 x 483
G-15 Weight Net (Approx.) 37.2 kg
(
--- lbs
)
Gross (Approx.) 40.6 kg
(
---lbs
)
G-16 Carton Master Carton No
Content ---- Sets
Material -- /--
Dimensions W x D x H(mm) -- x -- x --
Description of Origin No
Gift Box Yes
Material Double/White
Dimensions W x D x H(mm) 831 x 605 x 587
Design As per Buyer's
Description of Origin No
Drop Test Natural Dropping At 1
C
orner
/
3 Edges
/
6
Su
rf
aces
Height (cm) 31
Container Stuffing 204 Sets/40' container
G-17 Cabinet Material Cabinet Front PS 94HB
Cabinet Rear PS 94HB
Holder PS 94V0 DECABROM'
A3-3

1. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work.
After turning the power off there might still be a potential
voltage that is very dangerous. When removing the
Anode Cap, make sure to discharge the Anode Cap's
potential voltage.
Do not use pliers to loosen or tighten the Anode Cap
terminal, this may cause the spring to be damaged.
*
*
REMOVAL
1. Follow the steps as follows to discharge the Anode Cap.
(Refer to Fig. 1-1.)
Connect one end of an Alligator Clip to the metal part of a
flat-blade screwdriver and the other end to ground.
While holding the plastic part of the insulated Screwdriver,
touch the support of the Anode with the tip of the
Screwdriver.
A cracking noise will be heard as the voltage is discharged.
Flip up the sides of the Rubber Cap in the direction of the
arrow and remove one side of the support.
(Refer to Fig. 1-2.)
2.
DISASSEMBLY INSTRUCTIONS
GND on the CRT
Screwdriver
Alligator Clip
Support CRT
GND on the CRT
Rubber Cap
CRT Support
Fig. 1-1
Fig. 1-2
3. After one side is removed, pull in the opposite direction to
remove the other.
NOTE
Take care not to damage the Rubber Cap.
INSTALLATION
1. Clean the spot where the cap was located with a small
amount of alcohol. (Refer to Fig. 1-3.)
B1-1
Location of Anode Cap
Fig. 1-3
NOTE
Confirm that there is no dirt, dust, etc. at the spot where
the cap was located.
2.
3.
Arrange the wire of the Anode Cap and make sure the
wire is not twisted.
Turn over the Rubber Cap. (Refer to Fig. 1-4.)
Fig. 1-4
4. Insert one end of the Anode Support into the anode button,
then the other as shown in Fig. 1-5.
5.
6. Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.
CRT Support Fig. 1-5

B2-1
Masking Tape
(Cotton Tape)
DISASSEMBLY INSTRUCTIONS
2.
REMOVAL
IC
Put the Masking Tape (cotton tape) around the Flat
Package IC to protect other parts from any damage.
(Refer to Fig. 2-1.)
1.
Fig. 2-1
NOTE
REMOVAL AND INSTALLATION OF
FLAT PACKAGE IC
Some ICs on the PCB are affixed with glue, so be
careful not to break or damage the foil of each IC
leads or solder lands under the IC when removing it.
NOTE
Masking is carried out on all the parts located within
10 mm distance from IC leads.
Blower type IC
desoldering machine
IC
Heat the IC leads using a blower type IC desoldering
machine. (Refer to Fig. 2-2.)
2.
Fig. 2-2
NOTE
Do not add the rotating and the back and forth
directions force on the IC, until IC can move back and
forth easily after desoldering the IC leads completely.
When IC starts moving back and forth easily after
desoldering completely, pickup the corner of the IC using
a tweezers and remove the IC by moving with the IC
desoldering machine. (Refer to Fig. 2-3.)
3.
Blower type IC
desoldering
machine
IC Fig. 2-3
Tweezers
Peel off the Masking Tape.4.
Absorb the solder left on the pattern using the Braided
Shield Wire. (Refer to Fig. 2-4.)
5.
NOTE
Do not move the Braided Shield Wire in the vertical
direction towards the IC pattern.
Braided Shield Wire
Soldering Iron
Fig. 2-4
IC pattern

B2-2
DISASSEMBLY INSTRUCTIONS
Supply soldering
from upper position
to lower position
IC
Supply the solder from the upper position of IC leads
sliding to the lower position of the IC leads.
(Refer to Fig. 2-6.)
2.
Fig. 2-6
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided
Shield Wire. (Refer to Fig. 2-7.)
3.
Fig. 2-7
Soldering Iron
Braided Shield Wire
NOTE
Do not absorb the solder to excess.
IC
When bridge-soldering between terminals and/or the
soldering amount are not enough, resolder using a Thin-
tip Soldering Iron. (Refer to Fig. 2-8.)
4.
Fig. 2-8
Thin-tip Soldering Iron
NOTE
When the IC leads are bent during soldering and/or
repairing, do not repair the bending of leads. If the
bending of leads are repaired, the pattern may be
damaged. So, be always sure to replace the IC in this
case.
Finally, confirm the soldering status on four sides of the
IC using a magnifying glass.
Confirm that no abnormality is found on the soldering
position and installation position of the parts around the
IC. If some abnormality is found, correct by resoldering.
5.
Solder temporarily
Soldering Iron
INSTALLATION
Take care of the polarity of new IC and then install the
new IC fitting on the printed circuit pattern. Then solder
each lead on the diagonal positions of IC temporarily.
(Refer to Fig. 2-5.)
1.
Fig. 2-5
Solder temporarily

C-1
INIT 01 00
CRT ON 0000
SERVICE MODE LIST
Entry Key Operations
0Reset the user setting items (PICTURE, VOLUME, LANGUAGE and NICAM AUTO/OFF) to the initial
state for delivery.
1
6
Initialization of the factory.
NOTE: Do not use this for the normal servicing.
POWER ON total hours is displayed on the screen.
Refer to the "CONFIRMATION OF USING HOURS".
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "NOTE FOR THE REPLACING OF MEMORY IC".
8Writing of EEPROM initial data.
NOTE: Do not use this for the normal servicing.
9Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
CONFIRMATION OF HOURS USED
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
1.
2.
3.
4.
Set to the STANDBY at the minimum of volume.
Press the channel button (6) on the remote control for
more than 3 seconds.
Press POWER button on the remote control to turn the
POWER ON within 2 seconds.
After the confirmation of using hours, turn off the power. FIG. 1
Initial setting content of MEMORY IC.
POWER ON total hours.
= (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
+ (ones digit value)
7Releasing of PROTECTION PASSWORD.
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
SERVICE MODE will operate by the procedures below.
1. Set to the STANDBY at the minimum of volume.
2. Press the "Entry key" on the remote control for SERVICE MODE for more than 3 seconds.
3. Press POWER button on the remote control to turn the POWER ON within 2 seconds.

C-2
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to
ensure correct data settings while making reference to TABLE 1.
WHEN REPLACING EEPROM (MEMORY) IC
Table 1
1.
2.
3.
Set to the STANDBY at the minimum of volume.
Press the channel button (6) on the remote control for more than 3 seconds.
Press POWER button on the remote control to turn the POWER ON within 2 seconds.
ADDRESS and DATA should appear as Fig. 1.
4.
5.
6.
7.
8.
9.
The unit will now have the correct DATA for the new MEMORY IC.
ADDRESS is now selected and should "blink". Using the VOL. UP/DOWN button on the remote, step through the
ADDRESS until required ADDRESS to be changed is reached.
Press ENTER to select DATA. When DATA is selected, it will "blink".
Again, step through the DATA using VOL. UP/DOWN button until required DATA value has been selected.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
Repeat steps 4 to 7 until all data has been checked.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
Fig. 1
Note: No need setting for the position of the mark @ due to the adjustment value.
--- 00 38 1E 17 61 A0 C0 08 48
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
INI
20 80 80 80 00 00 @ @ 9F10 00 @ 80 00 42 @ @
00 00 24 63 7F 7F 74
@@@DF1F4700000020 @ 00 1F 00 @ FF 00
00 @ @ 07 00 40 0C 0F 0030 @ 040049080000
20 27 2B 2F 33 37 3B 3F 4140 23 43 45 47 49 4B 4D
4F 53 55 56 57 58 59 5A 5B50 51 5C 5D 5E 5F 60 60
61 62 62 63 63 64 64 65 6560 61 66 66 67 67 68 68
69 6A 6A 6B 6B 6C 6C 6D 6D70 69 6E 6E 6F 6F 70 70
22 CD CF D2 D6 D9 96 98 9C80 23 9D 55 56 58 5A 5C
5D --- --- --- --- --- --- --- ---90 5E --- --- --- --- --- ---
ADDRESS DATA
INIT 01 00
CRT ON 0000

1. BEFORE MAKING ELECTRICAL
ADJUSTMENTS
CAUTION
•
•
•
•
Use an isolation transformer when performing any
service on this chassis.
Before removing the anode cap, discharge electricity
because it contains high voltage.
When removing a PCB or related component, after
unfastening or changing a wire, be sure to put the wire
back in its original position.
Inferior silicon grease can damage IC's and transistors.
When replacing IC's and transistors, use only specified
silicon grease (YG6260M).
Remove all old silicon before applying new silicon.
2. BASIC ADJUSTMENTS
D1-1
ELECTRICAL ADJUSTMENTS
Read and perform these adjustments when repairing the
circuits or replacing electrical parts or PCB assemblies.
2-1: CONSTANT VOLTAGE
1.
2.
3.
4.
5.
Place the set with Aging Test for more than 5 minutes.
Using the remote control, set the brightness and contrast
to normal position.
Connect the digital voltmeter to TP501.
Set condition is AV MODE without signal.
Adjust the VR501 until the digital voltmeter is 135 ±0.5V.
2-3: AGC VOLTAGE
1.
2.
3.
4.
5.
Place the set with Aging Test for more than 15 minutes.
Receive the UHF (63dB).
Connect the digital voltmeter to pin 5 of CP101.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (01) on the remote control to
select "RF AGC".
Press the VOL. UP/DOWN button on the remote
control until the digital voltmeter is 1.85 ±0.05V.
2-4: CUT OFF
1.
2.
3.
4.
5.
Set condition is AV MODE without signal.
Using the remote control, set the brightness and contrast
to normal position.
Place the set with Aging Test for more than 15 minutes.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (00) on the remote control to
select "CUT OFF".
Adjust the Screen Volume until a dim raster is obtained.
1. Digital Voltmeter
2. Pattern Generator
Prepare the following measurement tools for electrical
adjustments.
On-Screen Display Adjustment
2-2: VCO
1.
2.
3.
4.
5.
6.
7.
Place the set with Aging Test for more than 10 minutes.
Using the remote control, set the brightness and
contrast to normal position.
Connect the oscillator (39.5MHz) to TP001.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (13) on the remote control to
select "VCO COARSE".
Press the VOL. UP/DOWN button on the remote
control until the "OK" appear on the screen. If the "OK"
is not displayed, select the "+" side on the changed
from "+" to "-".
Press the PROG/PAGE UP button once to set to "VCO
FINE" mode.
Press the VOL. UP/DOWN button on the remote
control to select the 5 step down point from the upper
limit on the "OK".
(Example: In case of the "OK" point 30~41, select 36.)
Fig. 1-1
4.
5.
Use the PROG/PAGE UP/DOWN button or Channel
button (0-9) on the remote control to select the options
shown in Fig. 1-2.
Press the MENU button on the remote control to end
the adjustments.
NO.
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
FUNCTION
CUT OFF
RF AGC
AGC GAIN
R DRIVE
R CUT OFF
G DRIVE
G CUT OFF
B DRIVE
H POSI 50
V POSI 50
V POSI 60
V SIZE 50
V SIZE 60
VCO COARSE
VCO FINE
---
---
BRIGHT CENT
BRIGHT MAX
BRIGHT MIN
TINT
SHARP
CONTRAST CENT
CONTRAST MAX
CONTRAST MIN
NO.
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
FUNCTION
COLOR CENT
COLOR MAX
COLOR MIN
M R CUT OFF
M G CUT OFF
M B CUT OFF
CVBS OUT
APR THR
BELL
BANDPASS
H POSI OSD
V POSI OSD
H POSI TEXT
V POSI TEXT
H POSI 60
VS 4:3
HS 4:3
PC 4:3
CC 4:3
S CORR
E/W SHAPE
TRAPEZIUM
VS FULL
HS FULL
PC FULL Fig. 1-2
NO.
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
FUNCTION
CC FULL
V POSI 50
V POSI 60
---
VS CINEMA
HS CINEMA
PC CINEMA
CC CINEMA
ZM CINEMA
---
---
VS 16:9
HS 16:9
PC 16:9
CC 16:9
ZM 16:9
---
---
VS 14:9
HS 14:9
PC 14:9
CC 14:9
ZM 14:9
Set to the STANDBY at the minimum of volume.
Press the channel button (9) on the remote control for
more than 3 seconds.
Press POWER button on the remote control to turn the
POWER ON within 2 seconds. The Fig. 1-1 screen will
appear.
1.
2.
3.
35 TV VCO Status -
MMM
35 H POSI OSD
36 V POSI OSD
37 H POSI TEXT
38 V POSI TEXT
39 H POSI 60
00 CUT OFF
123
67
124
67
00

ELECTRICAL ADJUSTMENTS
2-6: DOUBLE FOCUS
1.
2.
3.
Receive the cross hatch signal from the Pattern
Generator.
Turn the Focus 1 Volume and Focus 2 Volume fully
counterclockwise once. (Refer to Fig. 2-1)
Adjust the Focus 1 Volume so that the screen
becomes clearest. Then adjust the Focus 2 Volume.
2-7: HORIZONTAL POSITION
1.
2.
3.
4.
5.
6.
7.
8.
9.
Receive the monoscope pattern.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (08) on the remote control to
select "H POSI 50".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
right and left becomes minimum.
Receive the monoscope pattern of NTSC. (Audio Video
Input)
Press the AV button on the remote control to set to the
AV mode.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (39) on the remote control to
select "H POSI 60".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
right and left becomes minimum.
2-8: VERTICAL POSITION
NOTE: Adjust after performing adjustments in section 2-7.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Receive the monoscope pattern.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (51) on the remote control to
select "V POSI 50".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes minimum.
Receive the monoscope pattern of NTSC. (Audio Video
Input)
Press the AV button on the remote control to set to the
AV mode.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (52) on the remote control to
select "V POSI 60".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes minimum.
2-9: BRIGHT CENT
1.
2.
3.
4.
5.
6.
7.
Place the set with Aging Test for more than 15 minutes.
Receive the black pattern*. (RF Input)
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select "BRIGHT CENT".
Press the VOL. UP/DOWN button on the remote
control until the screen begin to shine.
Receive the black pattern*. (Audio Video Input)
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 3~5.
*The Black Pattern means the whole black raster signal.
Select the "RASTER" of the pattern generator, set to
the OFF position for each R, G and B.
2-10: CONTRAST CENT
1.
2.
3.
4.
5.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
select "CONTRAST CENT".
Press the VOL. UP/DOWN button on the remote
control until the contrast step No. becomes "50".
Press the AV button on the remote control to set to the
AV mode.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
select "CONTRAST CENT".
Press the VOL. UP/DOWN button on the remote
control until the contrast step No. becomes "52".
2-5: WHITE BALANCE
NOTE: Adjust after performing CUT OFF adjustments.
1.
2.
3.
4.
5.
6.
7.
8.
Place the set with Aging Test for more than 15 minutes.
Receive the white 100% signal from the Pattern
Generator.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (03) on the remote control to
select "R DRIVE".
Using the VOL. UP/DOWN button on the remote
control, adjust the R DRIVE.
Press the PROG/PAGE UP/DOWN button on the
remote control to select the "R DRIVE", "G DRIVE", "M
R CUT OFF" or "M G CUT OFF".
Using the VOL. UP/DOWN button on the remote
control, adjust the R DRIVE, G DRIVE, M R CUT OFF
or M G CUT OFF.
Perform the above adjustments 6 and 7 until the white
color is looked like a white.
Fig. 2-1
Focus 1 Volume
Focus 2 Volume
Screen Volume
D1-2

ELECTRICAL ADJUSTMENTS
2-12: TRAPEZIUM
1.
2.
3.
4.
5.
Receive the cross hatch signal from the Pattern
Generator.
Using the remote control, set the brightness and
contrast to normal position.
Change the wide screen mode to FULL.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (46) on the remote control to
select "TRAPEZIUM".
Press the VOL. UP/DOWN button on the remote
control until the both vertical lines of the screen
become parallel.
D1-3
2-13: NORMAL H. BLANKING
1.
2.
3.
4.
Receive the monoscope pattern.
Using the remote control, set the brightness and
contrast to normal position.
Change the wide screen mode to NORMAL.
Adjust VR601 until the difference of A and B becomes
minimum. (Refer to Fig. 2-3)
2-15: PICTURE SIZE (FULL)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Receive the monoscope pattern.
Change the wide screen mode to FULL.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (47) on the remote control to
select "VS FULL".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes 8 ±2%.
Press the PROG/PAGE UP button once to set to "HS
FULL" mode.
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
right and left becomes 9 ±2%.
Press the PROG/PAGE UP button once to set to "PC
FULL" mode.
Press the VOL. UP/DOWN button on the remote
control until the both ends of the vertical lines are
straight.
Press the PROG/PAGE UP button once to set to "CC
FULL" mode.
Press the VOL. UP/DOWN button on the remote
control until the horizontal line of the monoscope
pattern comes to approximate center of the CRT.
2-11: COLOR CENT
1.
2.
3.
4.
5.
6.
7.
8.
Receive the color bar pattern. (RF Input)
Using the remote control, set the brightness, contrast
and color to normal position.
Connect the oscilloscope to TP804.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (25) on the remote control to
select "COLOR CENT".
Adjust the VOLTS RANGE VARIABLE knob of the
oscilloscope until the range between white 100% and
0% is set to 5 scales on the screen of the oscilloscope.
Press the VOL. UP/DOWN button on the remote
control until the red color level is adjusted to 90 ±10%
of the white level. (Refer to Fig. 2-2)
Receive the color bar pattern. (Audio Video Input)
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 2~6.
Fig. 2-2
100%
AB
Fig. 2-3
2-14: PICTURE SIZE (4:3)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Receive the monoscope pattern.
Change the wide screen mode to NORMAL.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (40) on the remote control to
select "VS 4:3".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes 8 ±2%.
Press the PROG/PAGE UP button once to set to "HS
4:3" mode.
Press the VOL. UP/DOWN button on the remote
control until the picture size is 440 ±5mm.
Press the PROG/PAGE UP button once to set to "PC
4:3" mode.
Press the VOL. UP/DOWN button on the remote
control until the both ends of the vertical lines are
straight.
Press the PROG/PAGE UP button once to set to "CC
4:3" mode.
Press the VOL. UP/DOWN button on the remote
control until the horizontal line of the monoscope
pattern comes to approximate center of the CRT.
90%

ELECTRICAL ADJUSTMENTS
D1-4
2-17: PICTURE SIZE (16:9)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Receive the monoscope pattern.
Change the wide screen mode to 16:9.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (61) on the remote control to
select "VS 16:9".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes 8 ±2%.
Press the PROG/PAGE UP button once to set to "HS
16:9" mode.
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
right and left becomes 9 ±2%.
Press the PROG/PAGE UP button once to set to "PC
16:9" mode.
Press the VOL. UP/DOWN button on the remote
control until the both ends of the vertical lines are
straight.
Press the PROG/PAGE UP button once to set to "CC
16:9" mode.
Press the VOL. UP/DOWN button on the remote
control until the horizontal line of the monoscope
2-18: PICTURE SIZE (14:9)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Receive the monoscope pattern.
Change the wide screen mode to NORMAL.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (68) on the remote control to
select "VS 14:9".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes 8 ±2%.
Press the PROG/PAGE UP button once to set to "HS
14:9" mode.
Press the VOL. UP/DOWN button on the remote
control until the picture size is 520 ±5mm.
Press the PROG/PAGE UP button once to set to "PC
14:9" mode.
Press the VOL. UP/DOWN button on the remote
control until the both ends of the vertical lines are
straight.
Press the PROG/PAGE UP button once to set to "CC
14:9" mode.
Press the VOL. UP/DOWN button on the remote
control until the horizontal line of the monoscope
pattern comes to approximate center of the CRT.
2-19: Confirmation of Fixed Value (Step No.)
Please check if the fixed values of the each adjustment
items are set correctly referring below.
RF
00
00
00
45
00
00
00
00
63
20
31
07
63
15
63
10
127
31
00
00
00
124
57
124
57
04
00
03
00
00
2-16: PICTURE SIZE (CINEMA)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Receive the monoscope pattern.
Change the wide screen mode to CINEMA.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (54) on the remote control to
select "VS CINEMA".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes 20 ±2%.
Press the PROG/PAGE UP button once to set to "HS
CINEMA" mode.
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
right and left becomes 9 ±2%.
Press the PROG/PAGE UP button once to set to "PC
CINEMA" mode.
Press the VOL. UP/DOWN button on the remote
control until the both ends of the vertical lines are
straight.
Press the PROG/PAGE UP button once to set to "CC
CINEMA" mode.
Press the VOL. UP/DOWN button on the remote
control until the horizontal line of the monoscope
pattern comes to approximate center of the CRT.
FUNCTION
AGC GAIN
R CUT OFF
G CUT OFF
B DRIVE
V POSI 50
V POSI 60
V SIZE 50
V SIZE 60
BRIGHT MAX
BRIGHT MIN
TINT
SHARP
CONTRAST MAX
CONTRAST MIN
COLOR MAX
COLOR MIN
M B CUT OFF
CVBS OUT
APR THR
BELL
BANDPASS
H POSI OSD
V POSI OSD
H POSI TEXT
V POSI TEXT
S CORR
E/W SHAPE
ZM CINEMA
ZM 16:9
ZM 14:9
NO.
02
04
06
07
09
10
11
12
18
19
20
21
23
24
26
27
30
31
32
33
34
35
36
37
38
44
45
58
65
72

3.PURITY AND CONVERGENCE
ADJUSTMENTS
NOTE
1.
2.
3.
Turn the unit on and let it warm up for at least 30
minutes before performing the following adjustments.
Place the CRT surface facing east or west to reduce the
terrestrial magnetism.
Turn ON the unit and demagnetize with a Degauss Coil.
3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
1.
2.
3.
4.
5.
6.
7.
8.
Tighten the screw for the magnet. Refer to the adjusted
CRT for the position. (Refer to Fig. 3-1)
If the deflection yoke and magnet are in one body,
untighten the screw for the body.
Receive the green raster pattern from the color bar
generator.
Slide the deflection yoke until it touches the funnel side
of the CRT.
Adjust center of screen to green, with red and blue on
the sides, using the pair of purity magnets.
Switch the color bar generator from the green raster
pattern to the crosshatch pattern.
Combine red and blue of the 3 color crosshatch pattern
on the center of the screen by adjusting the pair of 4
pole magnets.
Combine red/blue (magenta) and green by adjusting the
pair of 6 pole magnets.
Adjust the crosshatch pattern to change to white by
repeating steps 6 and 7.
3-2: PURITY
NOTE
Adjust after performing adjustments in section 3-1.
1.
2.
3.
4.
5.
Receive the green raster pattern from color bar
generator.
Adjust the pair of purity magnets to center the color on
the screen.
Adjust the pair of purity magnets so the color at the
ends are equally wide.
Move the deflection yoke backward (to neck side)
slowly, and stop it at the position when the whole screen
is green.
Confirm red and blue colors.
Adjust the slant of the deflection yoke while watching
the screen, then tighten the fixing screw.
DEFLECTION YOKE
DEFLECTION YOKE SCREW
MAGNET SCREW
6 POLE MAGNETS
4 POLE MAGNETS
PURITY MAGNETS
Fig. 3-1
3-3: STATIC CONVERGENCE
NOTE
Adjust after performing adjustments in section 3-2.
1.
2.
3.
Receive the crosshatch pattern from the color bar
generator.
Combine red and blue of the 3 color crosshatch pattern
on the center of the screen by adjusting the pair of 4
pole magnets.
Combine red/blue (magenta) and green by adjusting the
pair of 6 pole magnets.
3-4: DYNAMIC CONVERGENCE
NOTE
Adjust after performing adjustments in section 3-3.
1.
2.
Adjust the differences around the screen by moving the
deflection yoke upward/downward and right/left.
(Refer to Fig. 3-2-a)
Tighten three screws to fix the deflection yoke.
(Refer to Fig. 3-2-b)
D2-1
R G B
R
G
B
R G B
R
G
B
UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT
Fig. 3-2-a
SCREW POSITION
Fig. 3-2-b
SCREW
SCREW SCREW

MAJOR COMPONENTS LOCATION GUIDE
D3-1
MAIN PCB
CRT PCB
CP101
TU001
IC201
VR601 J701
TP001
IC101
J801
TP804
SW501
VR501
FB401
FOCUS 1 VOLUME
FOCUS 2 VOLUME
SCREEN VOLUME
T501
TP501
T402
POWER PCB

30
48
31
35
37
36 52
47
CHROMA
IC201 STV2247C
34
29
32
51
CRT
MICON W/T.TEXT
IC101 OECF003A
51
50
X101
4MHz
9
25
1
34
33
21
18
17
16
15
20
19
P.CON + 5V
P.CON + 8V
6
9
3
P.CON + 25V
5DY
V.OUT
IC401 STV9306
FBT + B
180V
P.CON + 25V
DAF
CRT SCREEN/FOCUS12
180V
SVM
SVM
P.CON + 25V
T501
SW TRANS
AT + 5V
P.CON + 5V
SOUND + B
H + B
P.CON + 12V
+ B
AC230~240V
50Hz
H.OUT
V.PLUSE
H.OUT
V.OUT
H.OUT
I2C DATA/CLK
31
39
AT + 5V
LED
RECEIVER 40
X601
4.43MHz
25 26 27 28 20 22 18 13 14
J701
21PIN x 2
71
72
18.4MHz
NICAM/DOLBY
IC902 MSP3411G
3
2I2C DATA/CLK
P.CON + 8V
39
12
11
65
13
66
P.CON + 5V
AUDIO1 IN L/R
AUDIO2 IN L/R
28 27
20 1
67
P.CON + 8V
12
14 7
25
10
SOUND + 8V
STEREO SOUND AMP
IC1001 AN5277
BBE
IC901 NJM2150AM AUDIO L/R
AUDIO L/R
DAF
3
11
RGB/SCREEN/FOCUS12
V.OUT
I2C DATA/CLK
4
5
79111
126 7
8
I2C DATA/CLK
I2C DATA/CLK
I2C DATA/CLK
30V
P.CON + 5V AGC
TU001
TUWRF4EK-776F2
VIF
SIF
I2C DATA/
CLK
CVBS TXT
OSD (TEXT)
OSD (TEXT)
OSD (TEXT)
OSD (TEXT)
VIDEO IN 1
VIDEO IN 2
VIDEO OUT 1
VIDEO OUT 2
12
7
SOUND L
SOUND R SPEAKER
10W 8ohm x 2
BLOCK DIAGRAM
E-1 E-2
SIF/AUDIO
I2C DATA/CLK
I2C DATA/CLK
56
57
53
54

IC1001
IC582
IC581
C1013
C1008
C1007
C1009
HS1001
CP1001
C1005
C1006
C1011
R1013
C581
C583
TU001
PH005
C003
L001
C002
TP001
R006
R121
IC201
J701
L710L711
L712
L708
L704
L709
L707
L706
L703
L705
L702
L701
R713R714
R712
C718
Q701
C723
C950
C934
C943
C921
C947
C949
C922
C935
R701
D701
R711
C717
Q702
R708
C724
W804
C760
X901
C932 C933
C930
C931
R904
R905
R906
R907
C937 C936
C939
C911
C942
C920
CF301_1
L301
L302
C206
C209
C213
L303
R305
L206
L203
C605
C610
L601
R213
C607 C604
C603 C602
C217
C220
C210
CF201
L204
C611
L102
C110
L101
X101
IC199
D108
C130
C122
R102
IC601
W065
W083
W066
W067
W063
C121
R112
R109
W048
W080
W050
W036
R630
R629
R628
C635
W042
C628
R632
W008
D615
D616
D611D610
D609
D617
R620
W046
R621
D601
W029
D614
W074
W062
W084
W089
W052
W037
W035
W038
L904
R123
C725
W064
W027
VR601
W010
D603
L208
W059
W025
W022
W003
D702
D608
D606
D607
CP853A
CP802A
W017
W019
W060
W061
W086
W078
W047
W040
C613
W001
W801
D604
R644
CP803
CP804
C809
TP805
TP806
TP804
D801
D802
D803
Q812
Q811
Q810
R830
R828
R829
R808
R804
R806
C813
B852
Q856
Q857
R881
R855
C854
R879
R878 B851
C865
C864
R877
R880
C860
C861
R872
D855
R869
R875
R871
D856
R868
R873
R874
R870
R867
C808
L801
L802
L803
L804
D858
D857
W093
B853
Q858
Q859
C821
J801_1
W895
W896
W897
C852
D854
D853
W096
Q855
W095
W094
D852
L853
L851
R889
Q852
Q853
W091
W090
CP802B
CP853B
L852
Q854
W009
W072
W081
W088
CP801B
CP703B
CP704B
CP702B
W068
W016
L207
W033
CP852B
W011
W004
W894
D723
D712
C853
C584
W006
C582
C948
W118
W114
W121
W117
W122
W120 W116
W123
W097
W098
W099
W100
W104
W013
W018
W113
W026
W056
W014
W110
W112
W124W028
W125
L202
CP101
W054
W058
W111
W126
CF202
R105
D101
W128
C1001
C1002
W129
W043
W044
W031
W030
C858
C859
CF204
Q581
Q801
Q802
Q803
X601
R585
W131
W132
W051
D1001
W130
C115
W085
W041
W101
W102
W133
W077
W103
W814
D602
R619
W106
W806
W105
W815 W816
W819
W820
CP851
C129
W032
W812 W135
W805
W136
W039
W903
W901
W902
C862
W817
W818
W826
W828
W140
W127
C863
C627
C822
D581
D582
D605
IC101
W053
W830
R888
D901
C585
W139
W898
W813
W891
W899
W810
W802
C901_1
W809
W831
R1003 R1002
W832
S810X
S810Y
S851X
S851Y
S852X
S852Y
SH101
S807X
S807Y
W835
C642
R743
R742
C599
F-1 F-2
PRINTED CIRCUIT BOARDS
MAIN/CRT (INSERTED PARTS)
SOLDER SIDE

SHORT
CUT
1
25
41
64
R1006
R1007
R005
C006
C004 C005 R003 R004
R007
C001
IC902
R710
R705
R709
R702
C719 C721
C716
R706 R741
R707 R704
Q712
R733 R732
Q710
R738
R740
Q709
R725
Q705
R727 R730
Q707
R728 R729
Q706
R734 R735
R726
Q703
R737
R736
R719
R721
R722
R717
C927R903C925R901
IC901
C709
C710
R724
R723
R720
R718
C761
R909
C902
C913
C914
C903 C904
C907 C908
C938
C909
C910
C944 C945
C946
C918
C919
C941
C304
Q301
R302 R303
C301
C218
C303
R311
Q201
C204
C212
C203
R202
R215
C609 C601 C625
R312
C306
R214R201
C207
R218
C623
C622
R622
C616 C615 R608
C221
C215
Q202
Q204
R618 C614
R204
R203
R217
R219
R206
C618 C619 C620
R607
C612
R638
R645
C113 R113 C116
R111 C106
C105
C112 C111 C103
C104 R110
C118
C102
C114 C128 C127 C126 C125
R114
R115
C109
C108
R131
R130
R129
R128
R120
R117 R103
R136 R116
R101
R107
IC102
R135
C120
R126
R132
R118
R133
R134
R127
C119
R108
R634 C636 C631
C632 C633 R627 R626
R631
R633
Q607
Q608
Q603
R636
Q605
R625
Q606
R615
R612
R616
Q711
R639
C205
Q604
R610
R623
R611
C201
R606 R604
R910
R124
R813
R810
C804
R817 R814
R812
C805
R819
R815
R811
C806R816
R809
R807
R886
C869
R864
R887C871
R883
R859
R858
C872
R851
C851R852
C866
R863
R860
C857
R821
R854
R853 C855
R865
C868 R861R862
R884
R635
R731
R739
Q708
C912 C915
C916
C917
R902
R911
R920
R918
R919
C926
C928
R624
R1001
R637
R640
R617 R613 R614
C637 C630
C720
C722
C726
C727
R584
C638
C134
Q582
R586
C732
C731
C729
C730
Q1001
C135
R137
Q609
R641
Q602
R138
R643
R646
C639
C875
C874
R913
C640
R912
Q583
R582
R587
R140
R125
R648
C1003C1004
R122
C202
W836
PRINTED CIRCUIT BOARDS
MAIN/CRT (CHIP MOUNTED PARTS)
SOLDER SIDE
F-3 F-4