Panasonic QUASAR PV-C1320 Service Manual page 47

7.3.4. STEREO/SAP SEPARATION
ADJUSTMENT (MODEL: L)
Purpose: To separate the L and R Channels of
Stereo Signal.
Symptom of The L and R Channels of Stereo Signal
Misadjustment: will not be separated properly resulting in
no stereophonic effect.
Test Point: TP9001 (Audio C.B.A.)
Adjustment: R9001, R9008 (Audio C.B.A.)
Specification: minimum level
INPUT: Antenna Input Terminal
MTS (ONLY L CH)
300 Hz±5 Hz, 3 kHz±5 Hz
14 % or 7 % Modulating
Mode: STEREO audio (TV)
Equipment: Oscilloscope, MTS/SAP Signal Generator
1. Set to TV mode, and then set to STEREO audio.
2. Connect the RF OUTPUT of the MTS/SAP Signal
Generator to the Antenna Input Terminal.
Then, set the MTS/SAP Signal Generator as follows.
MTS (ONLY L CH)
300 Hz±5 Hz
14 % or 7 % Modulating
3. Connect the Oscilloscope to TP9001 on the Audio C.B.A.
4. Adjust R9001 (SEP (L) ) on the Audio C.B.A. so that the
signal level of TP9001 is minimum.
5. Set the MTS/SAP Signal Generator as follows.
MTS (ONLY L CH)
3 kHz±5 Hz
14 % or 7 % Modulating
6. Adjust R9008 (SEP (H) ) on the Audio C.B.A. so that the
signal level of TP9001 is minimum.
Fig. E2
PVQ-1310 / PV-C1320 / PV-C1330W / VV-1300 / VV-1310W / PV-C1340 / PV-C1350W / PV-C2010 / PV-C2020 / PV-C2030W / VV-2000 / PV-C2060
7.3.5. SEPARATION ADJUSTMENT
(Model: L)
Note:
Be sure to perform this adjustment after STEREO/SAP
SEPARATION ADJUSTMENT are completed.
Purpose: To separate the L and R Channels of
Stereo Signal.
Symptom of The L and R Channels of Stereo Signal
Misadjustment: will not be separated properly resulting in
no stereophonic effect.
Test Point: TP4202 (Audio C.B.A.)
Adjustment: R9003 (Audio C.B.A.)
Specification: minimum level
INPUT: Antenna Input Terminal
MTS (ONLY L CH)
300 Hz±5 Hz
14 % or 7 % Modulating
Mode: STEREO audio (TV)
Equipment: Oscilloscope, MTS/SAP Signal Generator
1. Connect the RF OUTPUT of the MTS/SAP Signal
Generator to the Antenna Input Terminal.
2. Connect the Oscilloscope to TP4202(R CH) on the Audio
C.B.A.
3. Set to TV mode, and then set to STEREO audio.
4. Adjust R9003 on the Audio C.B.A. so that the signal level is
minimum.
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Fig. E3