Philips DVP620VR User manual

DVD + VCR Combi ~ _DVP620VR:00/05/02
Service
Service
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VIDEO DIGITAL AUDIO DIGITAL VIDEO)
Contents Survey of versions:
Chapter /00 PAL I
/05 PAL B/G
Sec. 1: Technical Specifications 102 PAL B/G,L,L’ & SECAM B/G,L,L'
Schematic Diagrams and CBA's
Exploded Views
Mechanical and Electrical Parts Lists
Sec. 2: Standard Maintenance
Mechanism Alignment Procedures
Disassembly / Assembly of Mechanism
Deck Exploded Views
CLASS 1 LASER PRODUCT
KLASSE 1 LASER PRODUKT
©Copyright 2004 Philips Consumer Electronics B.V. Eindhove, The Netherlands KLASS 1 LASER APPARAT
All rights reserved. No part of this publication may be reproduced, stored in a retrieval CLASSE 1 PRODUIT LASER
system or transmitted, in any form or by any means, electronic, mechanical, photocopying,
or otherwise without the prior permission of Philips.
Published by FU 0420 Service AVE Subject to modification 3139 785 30560
PHILIPS
Version 1.0

MAIN SECTION
DIGITAL
VIDEO
DISC
PLAYER
&
VIDEO
CASSETTE
RECORDER
Sec. 1: Main Section
@ Adjustment Procedures
@ Schematic Diagrams and CBA’s
@ Exploded Views
@ Mechanical and Electrical Parts List
TABLE OF CONTENTS
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LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against
your skin.
The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep
your eyes at least 30cm away from the pickup lens when the diode is turned on. Do not look directly at the laser
beam.
Caution: Use of controls and adjustments, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.
Drive Mecha Assembly
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1-1-1 H9720LASER

IMPORTANT SAFETY PRECAUTIONS
Product Safety Notice
Some electrical and mechanical parts have special
safety-related characteristics which are often not evi-
dent from visual inspection, nor can the protection they
give necessarily be obtained by replacing them with
components rated for higher voltage, wattage, etc.
Parts that have special safety characteristics are iden-
tified by a A\ on schematics and in parts lists. Use of a
substitute replacement that does not have the same
safety characteristics as the recommended replace-
ment part might create shock, fire, and/or other haz-
ards. The Product’s Safety is under review
continuously and new instructions are issued when-
ever appropriate. Prior to shipment from the factory,
our products are carefully inspected to confirm with
the recognized product safety and electrical codes of
the countries in which they are to be sold. However, in
order to maintain such compliance, it is equally impor-
tant to implement the following precautions when a set
is being serviced.
Precautions during Servicing
A. Parts identified by the A\ symboi are critical for
safety. Replace only with part number specified.
In addition to safety, other parts and assemblies
are specified for conformance with regulations
applying to spurious radiation. These must also be
replaced only with specified replacements.
Examples: RF converters, RF cables, noise block-
ing capacitors, and noise blocking filters, etc.
C. Use specified internal wiring. Note especially:
1)Wires covered with PVC tubing
2)Double insulated wires
3)High voltage leads
D. Use specified insulating materials for hazardous
live parts. Note especially:
1)Insulation tape
2)PVC tubing
3)Spacers
4)|nsulators for transistors
. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before solder-
ing.
. Observe that the wires do not contact heat produc-
ing parts (heatsinks, oxide metal film resistors, fus-
ible resistors, etc.).
. Check that replaced wires do not contact sharp
edges or pointed parts.
. When a power cord has been replaced, check that
5 - 6 kg of force in any direction will not loosen it.
Also check areas surrounding repaired locations.
1-2-1
J. Use care that foreign objects (screws, solder drop-
lets, etc.) do not remain inside the set.
K. Crimp type wire connector
The power transformer uses crimp type connectors
which connect the power cord and the primary side
of the transformer. When replacing the transformer,
follow these steps carefully and precisely to prevent
shock hazards.
Replacement procedure
1)Remove the old connector by cutting the wires at a
point close to the connector.
Important: Do not re-use a connector. (Discard it.)
2)Strip about 15 mm of the insulation from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
3)Align the lengths of the wires to be connected.
Insert the wires fully into the connector.
4)Use a crimping tool to crimp the metal sleeve at its
center. Be sure to crimp fully to the complete clo-
sure of the tool.
L. When connecting or disconnecting the internal
connectors, first, disconnect the AC plug from the
AC outlet.
SFTY_06

Safety Check after Servicing
Examine the area surrounding the repaired location for .
damage or deterioration. Observe that screws, parts, | Chassis or Secondary Conductor
and wires have been returned to their original posi-
tions. Afterwards, do the following tests and confirm : Primary Circuit Terminals
the specified values to verify compliance with safety :
standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified clearance distance (d) and (d’) between sol-
dered terminals, and between terminals and surround-
ing metallic parts. (See Fig. 1)
Table 1 H Ratings for selected area BERS ESS SO eA ESS eS ECSU CHESS ERLE DSSS IES SCRUBS RASS SETI REESE
AC Line Voltage | Clearance Distance (d), (d’)
23 mm(d)
220 to 240 V = 6 miata
Note: This table is unofficial and for reference only. Oo Exposed Accessible Part
Be sure to confirm the precise values.
2. Leakage Current Test
Confirm the specified (or lower) leakage current
between B (earth ground, power cord plug prongs) AC Voltmeter
and externally exposed accessible parts (RF termi- (High Impedance)
nals, antenna terminals, video and audio input and
output terminals, microphone jacks, earphone jacks,
etc.) is lower than or equal to the specified value in the
table below.
Measuring Method (Power ON) : B & One side of
insert load Z between B (earth ground, power cord Power Cord Plug Prongs
plug prongs) and exposed accessible parts. Use an
AC voltmeter to measure across the terminals of load
Z. See Fig. 2 and the following table.
Table 2: Leakage current ratings for selected areas
; : One side of power cord plug
AC Line Voltage Leakage Current (i) prongs (B) to:
Pcireiae a i<0.7mA AC Peak RF or
parallel is2mA DC Antenna terminals
220 to 240 V
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Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
1-2-2 SFTY_06

STANDARD NOTES FOR SERVICING
Circuit Board Indications
a. The output pin of the 3 pin Regulator ICs is indi-
cated as shown.
Top View Botiom View
Input
b. For other ICs, pin 1 and every fifth pin are indicated
as shown.
5
Pin 1 ORONO LKES
OROKOMCE OLSKS
10
c. The 1st pin of every male connector is indicated as
shown.
Pint ROMO MORRO
Instructions for Connectors
1. When you connect or disconnect the FFC (Flexible
Foil Connector) cable, be sure to first disconnect
the AC cord.
2. FFC (Flexible Foil Connector) cable should be
inserted parallel into the connector, not at an angle.
* Be careful to avoid a short circuit.
Pb (Lead) Free Solder
When soldering, be sure to use the Pb free solder.
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:.
(1)Prepare the hot-air flat pack-IC desoldering
machine, then apply hot air to the Flat Pack-IC
(about 5 to 6 seconds). (Fig. S-1-1)
(2) Remove the flat pack-IC with tweezers while apply-
ing the hot air.
(3) Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Caution:
1. The Flat Pack-IC shape may differ by models. Use
an appropriate hot-air flat pack-IC desoldering
machine, whose shape matches that of the Flat
Pack-IC.
2. Do not supply hot air to the chip parts around the
flat pack-IC for over 6 seconds because damage to
the chip parts may occur. Put masking tape around
the flat pack-IC to protect other parts from damage.
(Fig. S-1-2)
NOTE_1

3. The flat pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each
pin or the solder lands under the IC when removing
it.
Hot-air
Flat Pack-iC
Desoldering
Machine
Masking
Tape
Tweezers
1-3-2
With Soldering Iron:
(1) Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
which is applied to all pins of the flat pack-IC, you
can remove it easily. (Fig. S-1-3)
Desoldering Braid
Flat Pack-IC
Soldering Iron
Fig. S-1-3
(2) Lift each lead of the flat pack-IC upward one by
one, using a sharp pin or wire to which solder will
not adhere (iron wire). When heating the pins, use
a fine tip soldering iron or a hot air desoldering
machine. (Fig. S-1-4)
Soldering Iron
(3) Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
With Iron Wire:
(1) Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
which is applied to all pins of the flat pack-IC, you
can remove it easily. (Fig. S-1-3)
(2) Affix the wire to a workbench or solid mounting
point, as shown in Fig. S-1-5.
(3) While heating the pins using a fine tip soldering
iron or hot air blower, pull up the wire as the solder
melts so as to lift the IC leads from the CBA contact
pads as shown in Fig. S-1-5
NOTE_1

(4) Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(5) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6) ;
Note:
When using a soldering iron, care must be taken
to ensure that the flat pack-IC is not being held by
glue. When the flat pack-IC is removed from the
CBA, handle it gently because it may be damaged
if force is applied.
Hot Air Blower
Mounting Point
/4—.Fine Tip
Soldering lron
Flat Pack-IC
Fig. S-1-6
1-3-3
2. Installation
(1) Using desoldering braid, remove the solder from
the foil of each pin of the flat pack-IC on the CBA so
you can install a replacement flat pack-IC more
easily.
(2) The “ @ ” mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be sure this mark matches the 1
on the PCB when positioning for installation. Then
presolder the four corners of the flat pack-IC. (See
Fig. S-1-8.)
(3) Solder ail pins of the flat pack-IC. Be sure that none
of the pins have solder bridges.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a" @" mark.
Presolder
Flat Pack-IC
NOTE_1

Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by electro-
static charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear.a grounding band (1MQ) that is prop-
erly grounded to remove any static electricity that may
be charged on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate
with proper grounding (1MQ) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on cloth-
ing will not escape through the body grounding band,
be careful to avoid contacting semi-conductors with
your clothing.
<Incorrect>
<Correct> Grounding Band
| 1MQ
CBA
ir or
Copper Plate
1-3-4
NOTE_1

FUNCTION INDICATOR SYMBOLS
Note:
lf a mechanical malfunction occurs, the power is turned off. When the power comes on again after that by
pressing [STANDBY-ON] button, an error message is displayed on the TV screen for 5 seconds.
INDICATOR ACTIVE
“EJECT R’” is displayed on a TV screen. (Refer to Fig. 1.)
When reel or capstan mechanism is not
functioning correctly
When tape loading mechanism is not func- | “EJECT T” is displayed on a TV screen. (Refer to Fig. 2.)
tioning correctly
When cassette loading mechanism is not | “EJECT C” is displayed on a TV screen. (Refer to Fig. 3.)
functioning correctly
When the drum is not working properly “EJECT D” is displayed on a TV screen. (Refer to Fig. 4.)
P-ON Power safety detection “EJECT P” is displayed on a TV screen. (Refer to Fig. 5.)
TV screen
When reel or capstan mechanism is not functioning When the drum is not working properly
correctly
EJECT R EJECT D
Fig. 1 Fig. 4
ihe tape loading mechanism is not functioning cor- _P-ON Power safety detection
EJECT T | EJECT P
Fig. 2 Fig. 5
When cassette loading mechanism is not functioning
correctly
EJECT C
Fig. 3
1-4-1 H9720FIS