Marantz DV4100 User Manual download pdf (Page 67)

Test instructions mono board DVD-ASD1

GB 11ASD-1 5.

Figure 5-5

5.4.3 Audio deemphasise check

The STI5505 output pins PIO 4-0 and PIO 4-1 were used to

switch deemphasis on a previous type of DAC. This function is

not used anymore, because deemphasis is done internally in

STI5505, but the name still remains. The lines are now used for

a series of functions such as centre_on_stereo or

karaoke_bypass. The PIO 4-0 has got a pull-up to +5V and the

PIO 4-1 has not. To check these pins these commands can be

used.

Ref. # Command Name Remark Testpoint Value

18e AudioDeemp0TristateOn PIO 4-0 Tristate On------

56a AudioDeemp0On PIO 4-0 OnF630 HIGH

56b AudioDeemp0Off PIO 4-0 0 OffF630 low

18f AudioDeemp0TristateOff PIO 4-0 Tristate Off------

56c AudioDeemp1On PIO 4-1 OnF633 high

56d AudioDeemp1Off PIO 4-1 OffF633 low

5.4.4 Audio mute check

Switch on the Mute circuit by sending next command:

Check the Mute output again at testpoint F625: 4.7V

10%

Switch off the Mute circuit by sending next command

Check the Mute output at testpoint F625: -8V

10%

5.4.5 Audio I2S check

To check the audio output, connect a audio DAC to the I2S

output (DVD950 A/V board) and start-up the audio test. Look at

the audio outputs from the A/V board for both sine and pink

noise.

The audio signal (sine or pink noise) will also be present on the

digital ouput (SPDif). This can be checked by connecting an

amplifier with digital input.

Check the I2S output.

LRCLK at testpoint F641

Figure 5-6

SCLK at testpoint F637

Figure 5-7

PCM_OUT0 at testpoint F638

PCM_OUT1 at testpoint F659

PCM_OUT2 at testpoint F658

Ref. # Command Name Remark

19a AudioMuteOn AudioMuteOn

Ref. # Command Name Remark

19a AudioMuteOff AudioMuteOff

PM3394B

ch1

CH1 2.00 V~ MTB20.0ns ch1+

CL06532065_007.eps

180500

Ref. # Command

Name

Remark Audio outputs

21a AudioSineOn Audio Sine

signal Off

Audio Sine signal On

Sine, 1kHz on stereo

Press stop button

20a AudioPinkNoi

seOn

Audio

Pinknoise

Pink Noise on 6 channels

20b AudioPinkNoi

seOff

Audio

Pinknoise

Off

PM3394B

ch1

CH1 2.00 V~ MTB10.0us ch1+

CL06532065_008.eps

180500

PM3394B

ch1

CH1 2.00 V~ MTB 100ns ch1+

CL06532065_009.eps

180500

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 142 143

Comments to this Manuals

No comments

Marantz DV4100 User Manual Page 67

Comments to this Manuals

Related products and manuals for DVD players Marantz DV4100