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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 voltmeter

5)

Standard commander (RMT-D173A)

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)

7)

SACD reference disc
HLXA-509 (J-6090-090-A)

8)

Extention Cable (J-6090-107-A)

Mode

E-E

Instrument

Digital voltmeter

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.

Note
Because the heatsink installed on the power supply board is a part of
the primary side, never touch it to avoid electrical shock.

Abbreviation

US

: US model

+0.5
–1.0

+1.0
–0.5

+0.2
–0.3

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 ± 0.05 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 ± 0.05 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 ± 0.05 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 ± 0.05 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 ± 0.05 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 ± 0.05 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 ± 30 mVp-p (NTSC)
A = 300 ± 100 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”.

1.0 ± 0.05 Vp-p 

1.0 ±0.05 Vp-p 

A

1.0 ± 0.05 Vp-p 

7-3

1.0 ±0.05 Vp-p 

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 ± 0.05 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 ± 0.05 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 = 646 ± 50 mVp-p (US,Canadian)

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

A = 646 ± 50 mVp-p (US,Canadian)

Checking method:
1)

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

2)

Confirm that the R-Y level is B.

8-1

The components identified by
mark 

  or dotted line with mark

  are critical for safety.

Replace only with part number speci-
fied.

Les composants identifiés par une
marque 

  sont critiquens pour la

sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.

NOTE:
• -XX and -X mean standardized parts, so they

may have some difference from the original one.

• Items marked “*” are not stocked since they are

seldom required for routine service. Some de-
lay should be anticipated when ordering these
items.

• The mechanical parts with no reference number

in the exploded views are not supplied.

• Color Indication of Appearance Parts Example:

KNOB, BALANCE (WHITE) . . . (RED)

R

R

Parts Color Cabinet's Color

• Abbreviation

US

: US model

ns : not supplied

a

b

c

b

Loading section

not 

supplied

a

c

4

qd

qa

Front panel section

not 

supplied

not 

supplied

2

d

g

e

f

d

e

f

3

ql

1

qf

qg

qj

qk

qh

6

5

9

q;

qs

w;

qa

qa

qa

7

9

8

q;

q;