ORDER NO.
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2001
ARP3099
T ZZY SEPT. 2001 Printed in Japan
PRO-720HD
PROJECTION MONITOR RECEIVER
PRO-620HD
PRO-520HD
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
This service manual should be used together with the following manual(s):
Model No.
Order No.
Remarks
6. ADJUSTMENT ................................................... 184
7. GENERAL INFORMATION ................................ 207
7.1. DIAGNOSIS .................................................. 207
7.1.1 DIAGNOSIS METHOD .............................. 207
7.1.2 DISASSEMBLY ......................................... 212
7.1.3 WIRING DIAGRAM .................................... 214
7.2 IC ................................................................... 216
7.3 EXPLANATION .............................................. 239
8. PANEL FACILITIES AND SPECIFICATIONS ......... 252
CONTENTS
Power Requirement
Type
Model
PRO-720HD PRO-620HD PRO-520HD
Remarks
KUXC/CA
AC120V
PRO-720HD
SAFTY INFORMATION, EXPLODED VIEWS AND PARTS LIST,
PRO-620HD
ARP3095
BLOCK DIAGRAM AND SCHEMATIC DIAGRAM,
PRO-520HD
PCB CONNECTION DIAGRAM, PCB PARTS LIST
184
PRO-720HD, PRO-620HD, PRO-520HD
6.1 INTRODUCTION
· IMPORTANT
When replacement of the following assemblies are required during repairs, be sure to replace the EEPROMs with the mounted ones in order to
retain the adjustment data of the unit and to facilitate adjustment after the replacement of the assemblies.
Notes:
· Even if the EEPROMs are replaced, adjustment may be necessary, depending on the part or assembly to be replaced.
For details, see page 186.
· Even if the EEPROMs are replaced, if the EEPROMs are damaged or if their data have been changed from the adjustment data, the status
before the failure will not be restored. Check the status of the unit after replacement of the EEPROMs, and readjust if necessary.
6. ADJUSTMENT
Name of Assy
EEPROM
Main Contents of Memory
SIGNAL Assy
IC2454 [24LC32(I)P]
Adjustment data, such as W/B and color data, in FACTORY mode
User data set on the MENU
DIGITAL CONV. Assy
IC1410 [24LC128P]
Convergence adjustment data
IC1656 [24LC08B(I)P]
Convergence offset data
Remote control unit
AXD1458
Monoscope
For HD Signal generator
Screwdriver
Adjustment screwdriver
Dual-trace oscilloscope
Frequency counter
Color bar generator
D. DC Voltmeter
LD Player
EDIT/
LEARN
SOURCE
INFO
RECEIVER
4
¢
MENU
INPUT
GUIDE
8
POWER
VCR REC
VOL
VOL
1
4
7
5
8
6
9
2
3
0
ANT
DISPLAY
MUTING
MENU
MODE
SUB CH
SPLIT
SELECT
SEARCH
1
2
3
4
INPUT
FAVORITE CH
TV
TV
CH
ENTER
RETURN
CH
FREEZE
17
3
¡
VOL
CH
SET/
ENTER
5
2
3
DTV/SAT
DTV/DVD TOP
SCREEN
DTV/(SAT)
TV/SAT/DVD
HDTV PROJECTION MONITOR
Î
TV
CBL
/SAT
/DTV
DVD
/LD
VCR
6.2 JIGS AND MEASURING INSTRUMENTS
185
PRO-720HD, PRO-620HD, PRO-520HD
6.3 ADJUSTMENT LOCATION AND ITEMS
Assembly Adjustment Location
DEFLECTION (SERVICE) ASSY
Adjustment Items
A
CONV. AMP ASSY
B
DIGITAL CONV. ASSY
Front View
C
Focus VR (VR1)
Focus VR
B
G
R
1
Brightness Adjustment
2
Deflection Yoke Adjustment
3
Focus Adjustment
4
Test-cross Position Check
5
Screen Size Adjustment
6
Convergence Adjustment
7
White Balance Adjustment
8
Panel Adjustment
9
Panel Adjustment for DTV
Lens assy
(For Red)
Lens assy
(For Blue)
Lens assy
(For Green)
Rubber
Cover
Holding the rubber cover firmly,
turn counterclockwise and
check that the lock has
been disengaged.
FBT
Pull straight up
Anode Cable
MEASURING METHOD
SERVICEMAN WARNING
Note :
When reconnecting the cable, proceed in the
reverse order. After reconnecting, tug on the
cable to check that it is secure.
Before removing the anode cable, turn
off the power, unplug the AC plug and
let the unit discharge for more than 1
minut.
Disconnect the FBT anode cable as shown below.
Measure at the point where the cable enters the FBT.
Caution : Take extra precaution when
measuring the voltage. High voltage are also
present in surrounding circuit boards. (CRT
assy, POWER SUPPLY assy)
CRT assy B
Deflection
Yoke (B)
Deflection
Yoke
TP-BK
TP-GK
B CRT DRIVE
assy
Centering magnet
(Turn in either direction untill cross signal becomes white.)
G CRT DRIVE
assy
R CRT DRIVE
assy
Deflection
Yoke (G)
Deflection
Yoke (R)
CRT assy R
CRT assy G
SUB VIDEO ASSY
E
SIGNAL ASSY
F
VIDEO ASSY
D
Rear View
186
PRO-720HD, PRO-620HD, PRO-520HD
If POWER SUPPLY ASSY
Brightness Adjustment (
2)
Focus Adjustment (VR1: FOCUS VR) (
2)
Screen Size Adjustment (
2)
Convergence Adjustment (
2)
White Balance Adjustment (
2)
1
3
5
6
7
No adjustment is required
is repaired or replaced
If AV I/O ASSY
No adjustment is required
is repaired or replaced
If OTHER ASSY
No adjustment is required
is repaired or replaced
If DEFLECTION SERVICE ASSY
is repaired or replaced
Brightness Adjustment (
1)
White Balance Adjustment (Composite STD :
1, Others :2)
1
7
If R, G or B CRT DRIVE ASSY
is repaired or replaced
White Balance Adjustment (
2)
7
If SIGNAL ASSY
is repaired or replaced
Focus Adjustment (
2)
Test-cross Position Check (
2)
Screen Size Adjustment (
2)
Convergence Adjustment (
2)
3
4
5
6
If DIGITAL CONV. ASSY
is repaired or replaced
Brightness Adjustment (
1)
Deflection Yoke Adjustment (
1)
Focus Adjustment (Lens :
2, VR1 Focus VR :1)
Convergence Adjustment (
2)
White Balance Adjustment (Composite STD :
1, Others :2)
1
2
3
6
7
If CRT ASSY (R, G or B)
is repaired or replaced
Brightness Adjustment (
2)
White Balance Adjustment (Composite STD :
1, Others :2)
Panel Adjustment (
1)
Panel Adjustment for DTV (
1)
1
7
8
9
If VIDEO ASSY
is repaired or replaced
Screen Size Adjustment (
2)
Convergence Adjustment (
2)
5
6
If CONV. AMP ASSY
is repaired or replaced
Test-cross Position Check (
2)
White Balance Adjustment (
2)
4
7
If SUB VIDEO ASSY
is repaired or replaced
Focus Adjustment (Lens :
1, VR1 Focus VR :2)
Convergence Adjustment (
2)
3
6
If LENS ASSY (R, G or B)
is repaired or replaced
Convergence Adjustment (
2)
6
If MIRROR and SCREEN
is repaired or replaced
Note :
*1: Readjustment necessary
*2: Turn on the power and confirm the screen. When adjustment deviates, it is readjusted if necessory.
· When the EEPROMs are replaced, check the status of the unit.
· If any IC of the EEPROM is damaged, readjustment of all the items is necessary.
· The necessary adjustment items differ, depending on the assembly or optical part replaced. Check and readjust the adjustment items
corresponding to the replaced assembly or part, following adjustment procedures 1 to 9.
Example: When the DIGITAL CONV. Assy is replaced, perform the following:
3. Focus check/adjustment
4. Test-cross position check/adjustment 5. Screen size check/adjustment
6. Convergence check/adjustment
Assembly Adjustment Location Guide
187
PRO-720HD, PRO-620HD, PRO-520HD
Start adjusting
Selecting the mode for adjustment operations.
Select 1st FACTORY ADJ mode, then adjust.
Start
Select 1st FACTORY ADJ Mode
Start
1st FAC
Factory Adjustment Mode
Normal
picture
Cyclically
Front panel
2nd FAC-
TORY ADJ
mode
picture
1st FAC-
TORY ADJ
mode
picture
The 2nd FACTORY
ADJ mode is not used
in the adjustment.
INPUT1
position
Press the
switch with
thin rod.
" ON "
TV
POWER
Telop : Red
RANGE CHECK mode
(TV/SAT/DVD MENU)
Telop : White
(MUTING)
(MUTING)
(MUTING)
(MUTING)
(MUTING)
(MUTING)
(MUTING)
PANEL ADJ mode
(CH RETURN)
Telop : Green
ADJUSTMENT SIZE mode
(ANT)
Telop : Magenta
ADJUSTMENT MPX mode
(P IN P ON/OFF)(SPLIT)
Telop : Blue
STD OFFSET mode
(
DOWN)
Telop : White
MANUAL CONVER mode
(SET)
Telop : White
AUTO ADJ mode
(
2 LEFT)
Telop : green
TEST mode
(
3 RIGHT)
Telop : White
SIGNAL ADJ mode
(
5 UP)
Telop : White
OFFSET CONVER mode
(
÷ DOT)
Telop : Blue , Cyclically
OTHER OFFSET mode 3
(Blue)
Not used in the
adjustment.
Telop : Blue , Cyclically
COLOR TEMP mode
(Green)
Telop : Blue
OTHER OFFSET mode
(
)
1
2
2
2
3
4
5
· To enter FACTORY mode, use the
key(s) on the remote control unit or
main unit. To release FACTORY mode,
use the key(s) of the remote control unit
or the main unit, or turn the power off.
If the unit remains in FACTORY mode
without any operation for 8 minutes, it
will be automatically released.
· In FACTORY mode, data for the picture
and audio qualities are standard, and
the FLESH TONE setting is always off.
· When the unit enters FACTORY mode,
settings such as audio muting, MENU,
and SPLIT (two split-screens) are
released.
· The Convergence data which user
adjusted are within the FACTORY
mode. Clear the convergence data by
releasing the FACTORY mode after it is
further within the MANUAL CONVER
mode or OFFSET CONVER mode.
· When the unit exits FACTORY mode,
the TV/CATV mode becomes AIR
(settings of ANT and CH are those last
stored in memory).
· CONVER. OSD (cross hatch) can be
turned on and off cyclically by using the
YELLOW key only during CONVER
mode (MANUAL, AUTO, OFFSET
adjustments).
(Default: The cross hatch is on only in
CONVER. mode.)
EDIT/
LEARN
SOURCE
INFO
RECEIVER
4
¢
MENU
INPUT
GUIDE
8
POWER
VCR REC
VOL
VOL
1
4
7
5
8
6
9
2
3
0
ANT
DISPLAY
MUTING
MENU
MODE
SUB CH
SPLIT
SELECT
SEARCH
1
2
3
4
INPUT
FAVORITE CH
TV
TV
CH
ENTER
RETURN
CH
FREEZE
17
3
¡
VOL
CH
SET/
ENTER
5
2
3
DTV/SAT
DTV/DVD TOP
SCREEN
DTV/(SAT)
TV/SAT/DVD
HDTV PROJECTION MONITOR
Î
TV
CBL
/SAT
/DTV
DVD
/LD
VCR
6.4 FACTORY ADJ MODE