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3-22 (E)
HDCU-900 MM
1. Input Level Adjustment
Adjustment Procedure
Measuring point : TP405 (G-4)/IF-789A/789P
Adjusting point : 1RV401 (G-4)/IF-789A/789P
Specifications : A = 1.56 ±0.02 V p-p
2. Phase Adjustment
Adjustment Procedure
Measuring point : TP503 (G-1)/IF-789A/789P
Adjusting point : 1RV404 (L-3)/IF-789A/789P
Specifications : B = 0
3. Return Level Adjustment (Y)
Adjustment Procedure
1. CONFIG button/MSU → ON
Set using MSU on the touch panel as follows.
[
CCU] → [RET|SETTING] →
RET1 : 2nd Slot (DIF-RET-1)
2. Measuring point : TP37/extension board (VDA-55)
Measure level C. (about 1400 mV)
3. CONFIG button/MSU → ON
Set using MSU on the touch panel as follows.
[
CCU] → [RET|SETTING] →
RET1 : 3rd Slot (VDA-RET-1)
4. Measuring point : TP37/extension board (VDA-55)
Adjusting point : 1RV402 (H-4)/IF-789A/789P
Specifications : D = C
5. Measuring point : TP37/extension board (VDA-55)
Adjusting point : 1RV501 (G-2)/IF-789A/789P
Specifications : E = 0
6. Repeat steps 4 and 5 until the specifications are
satisfied.
[for CE]
[for UC]
A
A
B
B
[for CE]
[for UC]
B
E
C, D
3-5. SD Signal System Adjustment (HKCU-901)