Enc Out Level Adjustment; Stair Signal Level Adjustment - Panasonic DVCPRO AJ-CA901P Service Manual

Electrical Adjustment for AJ-BS900HEN & CA900HEN

7-3. ENC OUT Level Adjustment

BOARD
BS DIGITAL
TP ENC1 OUT, ENC2 OUT, ENC3 OUT,
ADJ. VR8 [SYNC 1]
VR9, VR11, VR13 [CHROMA 1- 3]
VR10, VR12, VR14 [ENC 1- 3]
INPUT
AJ-BS900H Internal Color bar signal : ON
M. EQ Oscilloscope (with 75Ω termination)
SPEC. As shown below
ENC 1 OUT Adjustment
1. Connect Oscilloscope to ENC1 OUT and then
adjust VR10 so that the signal level A is 700mV +/-
7mV.
2. Connect Oscilloscope to ENC1 OUT and then
adjust VR8 so that the sync signal level B is
300mV +/- 3mV.
3. Connect Oscilloscope to ENC1 OUT and then
adjust VR9 so that the Color signal level C is the
same level with luminance signal.
C
B
ENC 2 OUT Adjustment
4. Connect Oscilloscope to ENC2 OUT and then
adjust VR12 so that the signal level A is 700mV +/-
7mV.
5. Connect Oscilloscope to ENC2 OUT and then
adjust VR11 so that the color signal level C is the
same level with luminance signal.
ENC 3 OUT Adjustment
6. Connect Oscilloscope to ENC3 OUT and then
adjust VR14 so that the signal level A is 700mV +/-
7mV.
7. Connect Oscilloscope to ENC3 OUT and then
adjust VR13 so that the color signal level C is the
same level with luminance signal.

7-4. Stair Signal Level Adjustment

BOARD
BS DIGITAL
TP VFK1671 : A45 pin
ADJ. VR3 [STAIR BAL], VR4 [STAIR GAIN]
INPUT ------
M. EQ Oscilloscope (with 75Ω termination)
SPEC.
As shown below
1. Set MON SEL Knob on the front panel of AJ-
BS900H as shown below.
MON SEL
2. Extend BS DIGITAL Board with extension board
(VFK1671).
3. Connect Oscilloscope to A45pin on the VFK1671
and then adjust VR4 so that the signal level is
10Vp-p.
4. Connect Oscilloscope to A45pin on VFK1671 and
then adjust VR3 and VR4 so that the step duty is
5Vp-p each.
5Vp-p
5Vp-p
ELE-17
: SEQ
10Vp-p