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DV-L70S
DV-L70BL
DV-L70W
6. ADJUSTMENT METHOD
6-1. HARNESS LIST FOR SERVICE PARTS
Parts Code
Price Code
QCNW-8145GEZZ
QCNW-8146GEZZ
QCNW-8147GEZZ
QCNW-8148GEZZ
QCNW-8149GEZZ
QCNW-8150GEZZ
Drawing for service jigs
Mechanism
Power
supply PWB
6-2. ADJUSTMENT PROCEDURE AND METHOD OF LCD PWB SIDE
1. 7.5V adjustment
Adjustment VR
Adjustment Point
Input Signal/Setting No input
Adjustment Method
2. Free run adjustment
Adjustment VR
Adjustment Point
Input Signal/Setting No input, external input mode
Adjustment Method
3. Screen center adjustment
Adjustment VR
Adjustment Point
Input Signal/Setting Monoscope full screen
Adjustment Method
Remarks
AQ
P.U. extension, 30-pin
AQ
Spindle extension, 13-pin
AN
Sled extension, 2-pin
AM
Power supply extension, 14-pin QCNW-1766TAZZ
AQ
Main LCD extension, 14-pin
AQ
Main LCD extension, 14-pin
Inverter junction PWB
QCNW-1766TAZZ
Inverter
QCNW-8151GEZZ
Pickup junction PWB
QPWBF5003GEZZ
Pickup
QCNW-8145GEZZ
FFC
MA
QCNW-8146GEZZ
FFC spindle
Lead wire
QCNW-8147GEZZ
Sled
PA
FFC
Power supply, 14-pole
QCNW-8148GEZZ
R1102
Put a voltmeter between 6PIN (+7.5V) and 4PIN (GND) of TP1191.
Adjust it to 7.50±0.02V.
R1104
Observe the 3PIN of TP1191 with a frequency counter.
Adjust it so as to get the HSY frequency of 15.625±0.01KHz
(64.0µS).
R1103
Visual observation of the panel
Adjust the screen so that it is located in the center.
Parts Code
Price Code
QCNW-8151GEZZ
AQ
QCNW-8152GEZZ
AQ
QCNW-8154GEZZ
AQ
BF
QPWBF5002GEZZ
BF
QPWBF5003GEZZ
BF
Inverter PWB
Panel
LCD junction PWB
QPWBF5002GEZZ
F
F
LCD junction
F
F
QCNW-8152GEZZ
C
C
LB
LA
LCD PWB
LC
LCD
QCNW-8150GEZZ
Lead wire
QCNW-8149GEZZ
AB
CN301
AA
AC
Main PWB
CN302
AD
AE
QCNW-8154GEZZ
8
Remarks
Inverter extension, 6-pin
LCD panel extension, 32-pin
Operation PWB extension, 12-pin
Inverter junction PWB
LCD junction PWB
Pickup junction PWB
Operation cabinet
HSY
15.625KHz
(64.0µS)
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