NW-HD5H - Sony Audio Service Manual (repair manual). Page 11

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11
NW-HD5H
5-1-2. Consumption current (read state) check
This mode is used in case consumption current (read state) in the
state where the hard disk drive has booted is checked.
Checking method:
1. Enter the test mode.
2. Press the
 
[>]
 
key to display major item, and press the [
E] [e]
key to select the “POWER”.
3. Press the
 
[>]
 
key to display minor item, and press the [
E] [e]
key to select the “A RD”.
4. Press the 
u
 key, “READY?” is displayed. In this state, each
time  [SEARCH/    MENU]
z
  key is pressed, EL back light ON/
OFF switch is performed.
5. Press the 
u
  key,  “READ” is displayed and hard disk drive
becomes read state.
After 10 seconds, “FIN” is displayed automatically and read
state is completed.
6. Press the  
x
  key, return to minor item selection screen.
5-1-3. Consumption current (write state) check
This mode is used in case consumption current (write state) in the
state where the hard disk drive has booted is checked.
Checking method:
1. Enter the test mode.
2. Press the
 
[>]
 
key to display major item, and press the [
E] [e]
key to select the “POWER”.
3. Press the
 
[>]
 
key to display minor item, and press the [
E] [e]
key to select the “A WR”.
4. Press the 
 u 
 key, “READY?” is displayed. In this state, each
time  [SEARCH/    MENU]
z
  key is pressed, EL back light ON/
OFF switch is performed.
5. Press the 
 u 
 key, “WRITE” is displayed and hard disk drive
becomes write state.
After 10 seconds, “FIN” is displayed automatically and write
state is completed.
6. Press the  
x
  key, return to minor item selection screen.
5-1-4. Charge current check
This mode is used in case charge current is checked.
Checking method:
1. Enter the test mode.
2. Press the
 
[>]
 
key to display major item, and press the [
E] [e]
key to select the “POWER”.
3. Press the
 
[>]
 
key to display minor item, and press the [
E] [e]
key to select the “CHG”.
4. Press the 
 u 
, port control state is displayed. In this state, each
time  [SEARCH/    MENU]
z
  key is pressed, port control state
switch is performed.
LCD display
Port control state
CHG500
IC7001
pin <znx  SUSPEND: L
pin <znc  VBUS_LIM: H
CHG100
IC7001
pin <znx  SUSPEND: L
pin <znc  VBUS_LIM: L
SUSP
IC7001
pin <znx  SUSPEND: H
pin <znc  VBUS_LIM: L
5. Press the  
x
  key, return to minor item selection screen.
5-2. Audio
The
 
[VOL +]
 
key performs switch of HP/LINE.
While playing the audio track, it's in a repeat state. If 
  x 
 key  is
pressed, it’s stopped.
Setting method of the audio test mode:
1. The data for audio test mode is copied to hard disk drive.
2. Enter the test mode.
3. Press the
 
[>]
 
key to display major item, and press the [
E] [e]
key to select the “AUDIO”.
4. Press the
 
[>]
 
key to display minor item, and press the [
E] [e]
key to select the “TESTLD”.
    A RD
LCD display
    READY?
LCD display
    READ
LCD display
    FIN
r
    WRITE
LCD display
    FIN
r
    A WR
LCD display
    READY?
LCD display
    POWER
LCD display
    POWER
LCD display
    CHG
LCD display
    AUDIO
LCD display
    TESTLD
LCD display
    POWER
LCD display
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