Service manual
35
VL-Z1U
ADJUSTMENT OF VIDEO I/O CIRCUIT SYSTEM
1. Adjustment of PCO D/A-Y
Measurement point (On envelope checkup TP jig)
Address VCR ADJ 566 Mode EE mode
Adjusting method 1Disconnect the DC cable or battery from the unit.
2Connect the envelope checkup TP jig to P3303.
3Reconnect the DC cable or battery to the unit, and turn on the power. (on the shooting side)
1) Connect the AVS cable to the monitor (TO).
2) Select the adjustment mode (V-ADJ).
3) Select address "566" to call up the data.
(A 100% white signal appears.)
4) Set the "Y" signal of the envelope checkup TP jig to 1.0 ± 0.05Vp-p by changing the data value
with the FF/REW keys.
Examples · Replacement of IC705, IC4401, IC1401
2. Adjustment of PCO D/A-C
Measurement point (On envelope checkup TP jig)
Address VCR ADJ 567 Mode EE mode
Adjusting method 1Disconnect the DC cable or battery from the unit.
2Connect the envelope checkup TP jig to P3303.
3Reconnect the DC cable or battery to the unit, and turn on the power. (on the shooting side)
1) Connect the AVS cable to the monitor (TO).
2) Select the adjustment mode (V-ADJ).
3) Select address "567" to call up the data.
4) Set the "C" signal of the envelope checkup TP jig to 0.64 ± 0.05Vp-p by changing the data value
with the FF/REW keys.
Examples · Replacement of IC705, IC4401, IC1401
(Envelope checkup TP jig)
1.0 ± 0.05
0.64 ± 0.05
ADJUSTMENT OF VF CIRCUIT
SC1800
P3301
4
2
R1824
R1823
C1809
C1810
C1439
R747
L1802
C708
C1402
R707 R715 C
7
C1441 L1404
Q705
Q1402
C704
Q704
R1406
C1408
R772
R771
R718
R738
R736
C1416
R1402
R1422
C1802
R1801
C1407
C1801
C1410
R737
R729
R1800
R1405
IC1401
C1406
R1419
R1802
R1818
R1805
R763
R759
C1409
C1418
R1804
Q1800
C1437
R1413
R1806
R758
C710
R1803
C1804
R1819
R1807
R6800 R1403 C1417
R1461
Q1405
R1808 C1803
R735
R741
R6810
R1404
R1421
C1419
R6813
R1462
C1411
Q1403
R1810
R1811
R1424
Q1801
R725
C733
C6800
R6812
C6807
R6804
R6803
R1809
R6802
R1423
R1414
Q6801
R1814
C1805
R1816
R720
R755
R6805
R1820
C1412
R6807
C6801
C6802
R6817
C1806
R1817
TL6804
Q1404
C1800
TL6803
R6806
R1813
R6816
Q1802
R6808
D6800
R1827
R1812
C6812
C6811
8
00
TL7819
TL6809
C4401 L1800
R6811
TL6802
TL6801
IC6801
TL6807
C1815
R706
R710
R708
TL8803
C6810
R4401
R4402
R1815
C4402
Q1803
R6819 C6815
C705
C6813
C4405
R6820 R6818
C6816 FB4405
C6814
C7802
X701
L7800
C7800
IC703
C7806
C7804
R7828 R7831
TL7824
IC4401
R7830
R7827
R7826
R7829
C8805 L8801
C7825
IC7802
R1925
C1911
L3404
C8800
R1928
C7803 Q1913
L8800
C7805 R8802 R8801
R1927
C7808
TL903
R1926
C7809
C8804
Q1912
C34
7
C7801
TL904
R1924
R8800
C4427
IC8800
Q8800
C7807
C34
3
C978
D960
R4403
C4426
R4495
C4418
C4428
R7800
C7810
R4415
C6803
C8801
L7810
TL4440
C4417
R7812
R7811
R8804
C962
R7820 R7832
C4403
C929
D916
R8805
R7819 R7833
C8809
R7838 C7812
TL8801
C7829
C8807
C7828
C8806
D7810
Q8801
R8819
R
7839
R7834
R7810
R7837 C8808
R7840
R7824
R8807
R7836
C7830
R7825
C7822
R8820
C7827
Q905
C8814
Q7800
7
02
C8813
R8809
R8806
C8802
TL3707
TL3705
R8827
R8814
TL907
C3704
3
707
TL8802
Q8802
C8803
R8828
R3705
C3710
TL911
R8808 R8817
L907
R3717
IC3702
Q909
C939
L908
FB3701
C3705
C938
C3712
C1901
Q903
C3708
C3709
Q1901
TL910
L901
TL908
Q900
TL8806
C3702 L3702
C934
R1941
R8836
Q1905
C1904
C932
R
TL8804
R8834
FB8800
TL8805
7
01 L3701 L903 C933 L902 C93
6
R8835
TL7824(VF_G_OUT)
VF_DAC full scale
TL8804(VF_VG)
VF_WB
TL8801(VF_COM)
VF_COM
TL8805(VF_VR)
VF_WB
TL8806(VF_VB)
VF_WB
1. Setteing of parameters (Main PWB)
* Preset the following data.
(Wiring board diagram: Main Side A)
PCO D/A-C
PCO D/A-Y
Address 582 585 597 5B9 5E4 5E5 580 588 589 58D 5A2 5A4 5A7 5A8 5A9 5B5 5B7 5B8 5C9 5D3
NTSC 3D 40 00 ———00 00 00 28 00 — F1 — 40 8B 8B 7D E0 —
PAL —— 00 00 18 18 00 00 00 — 00 D0 F1 E7 E7 8B 8B 7D E0 04