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6-5

Each Self Check function tests the FLD display, LED display, and key input.

Vref = 3.3V

2-3-1. FLD All ON
2-3-1-1. Operation and display
In this mode, all segments of FLD turn ON.

• Example of FLD all ON

2-3-2. Main Unit Key Code Display
2-3-2-1. Transition Keys in Self Check Mode
• Keys on the main unit except keys transited in Self Check Mode

2-3-2-2. Operation and Display
When a key on the main unit is pressed in the Self Check mode, the name of that key is displayed on the FLD. “KEY FF” is displayed when
nothing is entered.

• Key code display (at input of  H  key, key code: 0Ah)

• At input of faulty voltage

Input

IC404: Pin No. (Signal)

Voltage [V]

PIN ef (AD1)

PIN eg (AD2)

PIN eh (AD3)

PIN ej (AD4)

0 - 0.37

PLAY

OPEN/CLOSE

STOP

POWER

0.92 - 1.21

-

EXCHANGE

DISC 4

-

1.76 - 2.24

PREVIOUS

DISC SKIP

DISC 3

-

2.69 - 3.29

NEXT

-

DISC 2

-

3.61 - 4.25

DISC 5

-

DISC 1

-

6-6E

 

8G 7G  6G 5G 4G 3G 2G 1G

 

  a  a a a a a a

 

  h  h h h h h h

 

  j  j j j j j j 

 

  k  k k k k k k

 

  b  b b b b b b

 

  f  f f f f f f

 

  m  m m m m m m

 

  s  s s s s s s

 

  g  g g g g g g

 

  e  e e e e e e

 

  n  n n n n n n

 

a p  p p p p p p

 

b r  r r r r r r

 

f  c  c c c c c c

 

g d  d d d d d d

 c 

 

- 

col 

- 

col 

- 

-

 

e  Dp  Dp Dp Dp Dp Dp  -

 

d   - - - - - - 

 

-    - - - - - -

 

-    - - - - - - 

(8G)

ANODE CONNECTION

GRID ASSIGNMENT

P1

P2

P3

P4

P5

P6

P7

P8

P9

P10

P11

P12

P13

P14

P15

P16

P17

P18

P19

P20

a

f

e

c

d

b

g

Dp

col

(7G~1G)

a

f

h

g

e

r

p

n

s

c

m

d

j

k

b

8G

7G

6G

5G

4G

3G

2G

1G

7-1

This section describes procedures and instructions necessary for
adjusting electrical circuits in this unit.

Instruments required:
(1) Color monitor TV
(2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,

with delay mode

(3) Frequency counter (over 8 digits)
(4) Digital multimeter
(5) Standard commander (RMT-D176A/D186A)
(6) DVD reference disc

HLX-501 (J-6090-071-A) (dual layer) (NTSC)
HLX-503 (J-6090-069-A) (single layer) (NTSC)
HLX-504 (J-6090-088-A) (single layer) (NTSC)
HLX-505 (J-6090-089-A) (dual layer) (NTSC)

Mode

Except standby

Instrument

Digital multimeter

EVER+5V Check
Test point

CN201 pin 4

Specification

5.0        Vdc

SW+3.3V Check
Test point

CN201 pin 5

Specification

3.4 ± 0.2 Vdc

SW+5V Check
Test point

CN201 pin 6

Specification

5.0 ± 0.3 Vdc

SW+8V Check
Test point

CN201 pin 1

Specification

8.0 ± 0.5 Vdc

EVER+11V Check
Test point

CN201 pin 3

Specification

11.0        Vdc

EVER–10V Check
Test point

CN201 pin q;

Specification

–10.0        Vdc

Checking method:
(1) Confirm that each voltage satisfies the specification.

Caution!
Please do not touch any electrical parts at primary circuit to avoid
electrical shock.

+0.5

–1.0

+1.0

–0.5

+0.3

–0.2

7-2

<Purpose>
Checking Video Level the NTSC/PAL standard, and if not correct,
the brightness will be too large or small.

Mode

HLX-504 play back

Signal

Color bars 100%

Test point

LINE OUT (VIDEO) connector
(75 

Ω terminated)

Instrument

Oscilloscope

Specification

1.0 ± 0.08 Vp-p

Adjusting method:
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the Video Level is 1.0 ± 0.08 Vp-p.

<Purpose>
This checks component video output Y. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.

Mode

HLX-504 play back

Signal

Color bars

Test point

COMPONENT VIDEO OUT (Y)
connector, (75 

Ω terminated)

Instrument

Oscilloscope

Specification

1.0 ± 0.08 Vp-p

Checking method:
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the Y level is 1.0 ± 0.08 Vp-p.

<Purpose>
This checks component video output B-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance,
projector.

Mode

HLX-504 play back

Signal

Color bars

Test point

COMPONENT VIDEO OUT (P

B

)

connector (75 

Ω terminated)

Instrument

Oscilloscope

Specification

A = 700 ± 70 mVp-p

Checking method:
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the B-Y level is A.

<Purpose>
This checks component video output R-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance,
projector.

Mode

HLX-504 play back

Signal

Color bars

Test point

COMPONENT VIDEO OUT (P

R

)

connector (75 

Ω terminated)

Instrument

Oscilloscope

Specification

B = 700 ± 70 mVp-p

Checking method:
(1) In the Video Signal menu “1” Color Bar 100% play back.
(2) Confirm that the R-Y level is B.

A

B