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6-7

 

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

6-7E

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-D178A/RMT-D178P)
(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 +5 V Check
Test point

CN201 pin 4

Specification

5.0 ± 0.3 Vdc

SW +3.3 V Check
Test point

CN201 pin 5

Specification

3.35 ± 0.2 Vdc

SW+5 V Check
Test point

CN201 pin 6

Specification

5.0        Vdc

SW +8 V Check
Test point

CN201 pin 1

Specification

8.0 ± 0.5 Vdc

EVER +11 V Check
Test point

CN201 pin 3

Specification

11.0        Vdc

EVER –10 V 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

+0.2

–0.3

7-2

A

<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>
Check progressive video output level. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.

Mode

HLX-504 play back

Signal

Color bars 100%

Test point

COMPONENT VIDEO OUT (Y)
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 Y level is 1.0 ± 0.08 Vp-p.

<Purpose>
Check S-terminal video output. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with a S-terminal
cable.

Mode

HLX-504 play back

Signal

Color bars 100%

Test point

S VIDEO OUT (S-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 S-Y level is 1.0 ± 0.08 Vp-p.

<Purpose>
This checks whether the S-C satisfies the NTSC/PAL standard. If it is
not correct, the colors will be too dark or light.

Mode

HLX-504 play back

Signal

Color bars 100%

Test point

S VIDEO OUT (S-C) connector
(75 

Ω terminated)

Instrument

Oscilloscope

Specification

A = 286 ± 50 mVp-p (NTSC)
A = 300 ± 50 mVp-p (PAL)

Checking method:
1)

In the Video Signal menu “1” Color Bar 100% play back.

2)

Confirm that the S-C burst is “A”.

7-3

A

B

<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.

7-3E