DVH-P7000R
A
B
C
D
5
7
8
5
7
8
115
Check 4: Is the audio circuit operating normally?
Reproduce DVD-REF-A1(GGV1018) Title 2 Chapter (48k/16-bit/1 kHz/0dB).
This check is the same for all DVD-V compatible modules.
Checks are to be conducted using GNDAU1 (sensing pins) as a reference.
If the result is not satisfactory, check to see if there are any problems with the resin flux cored solder, parts and compo-
nents, in the vicinity of the main components (the section marked
4
in the circuit diagram circuit diagram).
NO.
Verification Rated
Rated
Reference
location
value 1
value 2
waveform
1
IC1601 pin-3 2.2V
0 .8V
Waveform 3
and over
and lower
2
IC1601 pin-2 2.2V
0 .8V
Waveform 3
and over
and lower
4
IC1601 pin-4 2.2V
0 .8V
Waveform 3
and over
and lower
Rated value1
Rated value 2
GND
Three serial output rated values
Checks are conducted with the measurement circuit below.
NO.
Verification Verification
Rated
value
Reference
location 1
location 2
waveform
4
LO
CN1701 15pin
1120
±
150mV
Waveform 4
5
RO
CN1702 12pin
1120
±
150mV
Waveform 4
Analog audio outputs (LO and RO) rated values
LO and RO output measurement circuit
Verification Verification
Rated
value
1
Rated
value
2
Reference
waveform
6
IEC958
CN1702 1pin
2.2V and over
0.8V and lower
Waveform 5
Rated value
HOST I/F
LO
Q1602.3
These resistors are inserted.
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
