Panasonic NV-HS1000, Service Manual

Page: 61 / 138

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Fig.
E11
2-5-12. S-VHS FREQUENCY RESPONSE ADJUSTMENT
TP ADJ. MODE INPUT
VR3302
SP (SELF VIDEO SWEEP
TP3021
(SP)
RECORDED) SIGNAL
PLAYBACK (P3002-10)
TAPE M. EQ. SPEC.
OSCILLO-
S-VHS
SCOPE/
BLANK VIDEO SP: -4.5+-1(dB) (55-70%)
TAPE SWEEP
GENERATOR
Note: 1. Before this adjustment, RF PEAK ADJUSTMENT
must be done.
2. Set the Video Sweep Signal as shown in Fig. E12.
3. Set the Al SW to OFF position.
4. Connect a jumper wire between PP3003-5 and
GND.
5. After this adjustment, disconnect the jumper wire .
CONDITION: BURST SIGNAL OFF
75 ohm TERMINATED
Fig. E12
Fig. E13
2-5-13. VHS PLAYBACK LEVEL ADJUSTMENT
TP ADJ. MODE INPUT
TP3021 (Y) VR302 (Y} SP (SELF
PAL COLOUR
RECORDED)
TP8021 (C} VRB04 (C} PLAYBACK BAR
TAPE M. EQ. SPEC.
BLANK OSCILLO-
Y: 2.o+-0.1 (Vp-p}
TAPE SCOPE C: 1.1 +-0.1 (Vp-p)
Note: 1. Set the S-VHS SW to OFF position.
Fig. E14
2-11