Sony HVR-Z7J Service Manual page 325

1. Signal Output Check
Mode
Signal
Measurement Point
Measuring Instrument
Specified value
Note 1: 0 dBs = 0.775 Vrms
Note 2: The Rch level to the Lch level must be within ±0.5dB.
Note 3: NTSC model: HVR-Z7J/Z7U/Z7N
PAL model: HVR-Z7E/Z7P/Z7C
Checking method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 0, address: 10, and set data: 01.
3) Select page: 8 (18) , address: 5C, and set data: 05.
4) Check that the sound is output from the speaker.
5) Check that the sound from the speaker is interrupted when the
LCD panel is closed.
6) Check that the sound from the speaker is interrupted when the
plug is inserted in the headphone jack, and also that the sounds
are output from the left and right sides of headphone.
7) Select page: 0, address: 10, and set data: 00.
8) Select page: 2, address: 46, and check the following bit value.
If bit value of bit 4 is 1: NTSC model
If bit value of bit 4 is 0: PAL model
9) Check that the Lch and Rch output level of A/V OUT jack is
within the specified value.
10) Select page: 0, address: 10, and set data: 01.
11) Select page: 8 (18), address: 5C, and set data: 00
12) Select page: 0, address: 10, and set data: 00
13) Select page: 0, address: 01, and set data: 00.
HVR-Z7J/Z7U/Z7N/Z7E/Z7P/Z7C
VCR mode
Test tone generation (1kHz, 0dBFS)
Audio L and R terminal of A/V OUT
jack
Audio level meter, Oscilloscope
+10 dBs ±1 dB (NTSC)
+8 dBs ±1 dB (PAL)
(Note 2)
2. INPUT1 LINE Check
Mode
Signal
Measurement Point
Measuring Instrument
Specified value
Note 1: 0 dBu = 0.775 Vrms/balance
Note 2: 0 dBs = 0.775 Vrms
Switch setting
1) INPUT1 switch ............................................................... LINE
Checking method:
1) Input 1 kHz, 0 dBu signal in the XLR terminal (INPUT1).
2) Check that the 1 kHz signal level is the specified value.
3. INPUT2 LINE Check
Mode
Signal
Measurement Point
Measuring Instrument
Specified value
Note 1: 0 dBu = 0.775 Vrms/balance
Note 2: 0 dBs = 0.775 Vrms
Switch setting
1) INPUT2 switch ............................................................... LINE
Checking method:
1) Input 1 kHz, 0 dBu signal in the XLR terminal (INPUT2).
2) Check that the 1 kHz signal level is the specified value.
6-135
CAMERA mode
1 kHz, 0 dBu signal:
XLR terminal (INPUT1)
Audio L terminal of A/V OUT jack
Audio level meter, Oscilloscope
–14 dBs ± 2 dB
CAMERA mode
1 kHz, 0 dBu signal:
XLR terminal (INPUT2)
Audio R terminal of A/V OUT jack
Audio level meter, Oscilloscope
–14 dBs ± 2 dB