Sanyo CP21MF2, Service Manual

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E
10 7
9
7
R732
R51
634
JP441
J507
J50
KDY-6
KDY-5
KDY-4
KDY-3
KDY-1
T471A
T471
FBT
T471-H4
T471-H7
T471-H12
T471-H10
T471-H1 T471-H2
L441-H2
L441-H1
T471-H11
C524
D485
R488
R424
C471
L631
R481
J509
R516
C491
KQ
R355
J501
3 1
JW4
C641
D631
C631
JP631
1AA4B10S0180A
1
D611
C611
L441
L441A
L441-H3
C435
C435B
C437
C435A
C435-H3
C435-H2
C435-H1
C441B C441A
D441
C435-H4
C441-H3
TP-B
R628
R629
C629
Q615
R621 D618 R622
Q616
R624
R623
C615
C645
Q613-H
T611-H10
T611-H7
Q613-H3
Q613-H2
Q613-H5
Q613-H4
JP641
R525
R486
R485
J634
D507
T611-H11
E
4
E
E
E
E
KE-2 KE-1
34
21
KG
T4AL250V
F601
E
E
16
10 7
1
E
E
16
9
7
1
J031
IC501
C644
IC501-H1
R518
R519
C520
C518
R512
D512
J514
R522
D683
R687
R686
Q683
R663
C662
Q661A
D634
C634
J401
D682
C517
J513
R243
C510
R510
R511
J504
J502
J506
R872
J403
R855 R857
J024
J808
R642
J687
J219
J688
R664
R664-H2 R664-H1
JW3
J503
JP683
R267
JP441
J507
J505
KDY-6
KDY-5
KDY-4
KDY-3
KDY-1
L441-H2
L441-H1
R431
C434
C433
Q431
C515
C514
C524
C432
J032
L631
J509
R516
R515
R514
IC501-H2
R355
J501
JW4
C641
J633
D631
C631
JP631
D633
C633
C643
R638
R639
D686
R637
R635
VR631
D685
C685
1AA4B10S0180A
R433
C521
R645
J645 R615
R606
R620
R609
L603
D611
Q614
Q611
L604
C611
R612-H1
R612-H2
R604-H2
R604-H1
C614
R619
C613
R607
D617
Q612
R613
C612
R603
R604
R612
R611
J604
C607-H1
C607
C607-H2
C608
D613
R618
D610
J605
L605
KG-3
KG-2
1
C628
F601A
F601B
TP-EE
C835
L441
L441A
L441-H3
R441
R435
C437
C435-H
3
D441
C441
-
C441-H3
C441-H4
J435
Q661
E
B
D605
C605
D603
R602-H2
D606
C606
J603
R602-H1 R602-H3 R602-H4
C603
D604
C604
J030
TP-B
R665
R605
R613-H1
R613-H2
C608A
R628
R629
R617
C611A
C629
C225
R643
C646
D663
J666
D662
R669
C610
J607
R613Z
R613Z-H2
R613Z-H1
Q615
R621 D618 R622
Q616
R624
R623
C615
T611
R616
J608
Q613-H1
C632
J632
C645
J655
Q613
Q613-H
T611-H14
T611-H10
T611-H2
T611-H4
T611-H7
T611A
Q613-H3
Q613-H2
Q613-H5
Q613-H4
J609
JP641
R525
D619
D616
J634
D
63
2
JP632
D694
R631
C635
D507
Q635
Q686
T611-H11
T611-H13
T611B
VERT. OUT
+B ADJ.
-14-
Service Adjustments
Following adjustments are not required to readjust when replacing the memory IC.
(1) Connect DC meter to TP-B and the ground.
(2) Tune the receiver to an active channel and synchro-
nized picture. Select NATURAL picture mode by press-
ing the PICTURE MODE button on the remote control.
(3) Adjust B-voltage to be 130 ± 1V DC by using VR631.
B-VOLTAGE SUPPLY CHECKING
(1) Receive the monochrome circular pattern.
(2) Set the brightness to normal and contrast to maximum.
(3) Adjust the focus control on the F.B.T. for the best focus
on the screen centre.
FOCUS ADJUSTMENT
MAIN BOARD
B-Voltage Supply Adjustment
Focus VR
(Upper side)
MAIN BOARD
Note: +B (+130V) Voltage Check and Grayscale Adjustment
must be completed before attempting High Voltage Check.
(1) Connect high voltage voltmeter negative lead to
ground, and c lead to anode of picture tube.
(2) Tune receiver to an active channel and confirm TV is
operating properly.
(3) Maximize the beam current by adjusting the contrast
and brightness controls to maximum. Confirm high
voltage is within 24.0 KV and 26.5 KV at maximum
beam current.
(4) Eliminate the beam current by adjusting the contrast
and brightness controls to minimum. Confirm high
voltage does not exceed 28.0 KV at zero beam current.
If reading is not within range, check horizontal circuit.
No high-voltage adjustment is provided on this chassis.
HIGH VOLTAGE CHECK
TP-B