NW-HD5H - Sony Audio Service Manual (repair manual). Page 13

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13
NW-HD5H
5-2-4. Channel separation check
“1 kHz   0 dBs   L-ch/1 kHz   0 dBs   R-ch VOLUME: 27” audio signal
is outputted.
Checking method:
1. Enter the audio test mode.
2. Press the
 
[>]
 
key to display major item, and press the [
E] [e]
key to select the “AUDIO”.
3. Press the [>]
 
key to display minor item, and press the [
E] [e]
key to select the “SEP LR”.
4. Press the 
 u 
 key, “START” is displayed and “1 kHz   0 dBs
L-ch VOLUME: 27” audio signal is outputted. In this state,
each time [SEARCH/    MENU]
z
 key is pressed, V-SUR switch is
performed.
5. Press the  
x
  key, return to minor item selection screen.
6. Press the [
E] [e] key to select the “SEP RL”.
7. Press the 
 u 
 key, “START” is displayed and “1 kHz   0 dBs
R-ch VOLUME: 27” audio signal is outputted. In this state,
each time [SEARCH/    MENU]
z
 key is pressed, V-SUR switch is
performed.
8. Press the  
x
  key, return to minor item selection screen.
5-2-5. Maximum output check
“1 kHz   0 dBs   L-ch/R-ch   VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the audio test mode.
2. Press the
 
[>]
 
key to display major item, and press the [
E] [e]
key to select the “AUDIO”.
3. Press the
 
[>]
 
key to display minor item, and press the [
E] [e]
key to select the “MAXOUT”.
4. Press the 
 u 
 key, “START” is displayed and “1 kHz   0 dBs
L-ch/R-ch   VOLUME: 30”  audio signal is outputted. In this
state, Each time [SEARCH/    MENU]
z
  key is pressed, AVLS
ON/OFF switch is performed.
5. Press the  
x
  key, return to minor item selection screen
5-2-6. SOUND EQ check
“100 Hz/250 Hz/630 Hz/1.6 kHz/4 kHz/10 kHz   –20 dBs   L-ch/R-
ch VOLUME: 27” audio signal is outputted.
Checking method:
1. Enter the audio test mode.
2. Press the
 
[>]
 
key to display major item, and press the [
E] [e]
key to select the “AUDIO”.
3. Press the
 
[>]
 
key to display minor item, and press the [
E] [e]
key to select the “EQ 1”.
4. Press the 
 u 
 key, “START” is displayed and “100 Hz   –20 dBs
L-ch/R-ch VOLUME: 27” audio signal is outputted. In this state,
each time [SEARCH/    MENU]
z
 key is pressed, EQ LEVEL ALL3/
–3 switch is performed.
5. Press the  
x
  key, return to minor item selection screen.
6. Press the [
E] [e] key to select the “EQ 2”.
7. Press the 
 u 
 key, “START” is displayed and “250 Hz   –20 dBs
L-ch/R-ch VOLUME: 27” audio signal is outputted. In this state,
each time [SEARCH/    MENU]
z
 key is pressed, EQ LEVEL ALL3/
–3 switch is performed.
8. Press the  
x
  key, return to minor item selection screen.
9. Press the [
E] [e] key to select the “EQ 3”.
10. Press the 
 u 
 key,  “START” is displayed and “630 Hz   –20
dBs   L-ch/R-ch VOLUME: 27” audio signal is outputted. In
this state, each time [SEARCH/    MENU]
z
 key is pressed, EQ
LEVEL ALL3/–3 switch is performed.
11. Press the  
x
  key, return to minor item selection screen.
12. Press the [
E] [e] key to select the “EQ 4”.
13. Press the 
 u 
 key, “START” is displayed and “1.6 kHz   –20
dBs   L-ch/R-ch VOLUME: 27” audio signal is outputted. In
this state, each time [SEARCH/    MENU]
z
 key is pressed, EQ
LEVEL ALL3/–3 switch is performed.
    AUDIO
LCD display
    SEP LR
LCD display
    START
LCD display
    SEP RL
LCD display
    START
LCD display
    AUDIO
LCD display
    MAXOUT
LCD display
    START
LCD display
    AUDIO
LCD display
    EQ 1
LCD display
    START
LCD display
    EQ 2
LCD display
    START
LCD display
    EQ 3
LCD display
    START
LCD display
    EQ 4
LCD display
    START
LCD display
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