Philips DVDR3545V/37 User manual

Contents
Chapter
Sec. 1: Adjustment Procedures
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
Deck Parts List
Survey of versions:
Published by FU-KC 0715 Service AV Systems Printed in The Netherlands Subject to modification
Version 1.1
/37 NTSC
DVD Recorder & Video Cassette Recorder DVDR3545V/37
cCopyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval
system or transmitted, in any form or by any means, electronic, mechanical, photocopying,
or otherwise without the prior permission of Philips.
CLASS 1 LASER PRODUCT
KLASSE 1 LASER PRODUKT
KLASS 1 LASER APPARAT
CLASSE 1 PRODUIT LASER
EN 3139 785 32571
Service Manual
Service
Service
Service
Service
Service

MAIN SECTION
DVD Recorder &
Video Cassette Recorder
TABLE OF CONTENTS
LASER BEAM SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1
IMPORTANT SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1
STANDARD NOTES FOR SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1
FUNCTION INDICATOR SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1
PREPARATION FOR SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
OPERATING CONTROLS AND FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
SIGNAL NAME ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
CABINET DISASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
ELECTRICAL ADJUSTMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
HOW TO INITIALIZE THE DVD RECORDER & VCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
FIRMWARE RENEWAL MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
BLOCK DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
WIRING DIAGRAM < VCR SECTION > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
WIRING DIAGRAM < DVD SECTION >. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-2
SYSTEM CONTROL TIMING CHARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
IC PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
LEAD IDENTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18-1
ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19-1
EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20-1
MECHANICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21-1
REVISION LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22-1
Sec. 1: Main Section
IAdjustment Procedures
ISchematic Diagrams and CBA’s
IExploded Views
IMechanical and Electrical Parts List
Manufactured under license from Dolby Laboratories.
“Dolby” and the double-D symbol are trademarks of Dolby Laboratories.

1-1-1 RL4NLSP
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
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 30 cm 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.
Location: Inside Top of DVD mechanism.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.
Drive Mechanism Assembly
Laser Beam Radiation
Laser Pickup
Turntable

1-2-1 DVDN_ISP
IMPORTANT SAFETY PRECAUTIONS
Product Safety Notice
Some electrical and mechanical parts have special
safety-related characteristics which are often not
evident 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
identified by a #on schematics and in parts lists. Use
of a substitute replacement that does not have the
same safety characteristics as the recommended
replacement part might create shock, fire, and/or other
hazards. The Product’s Safety is under review
continuously and new instructions are issued
whenever 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 important to implement the following
precautions when a set is being serviced.
Precautions during Servicing
A. Parts identified by the #symbol are critical for
safety. Replace only with part number specified.
B. 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
blocking 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) Insulators for transistors
E. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before
soldering.
F. Observe that the wires do not contact heat
producing parts (heat sinks, oxide metal film
resistors, fusible resistors, etc.).
G. Check that replaced wires do not contact sharp
edges or pointed parts.
H. When a power cord has been replaced, check that
5 - 6 kg of force in any direction will not loosen it.
I. Also check areas surrounding repaired locations.
J. Be careful that foreign objects (screws, solder
droplets, etc.) do not remain inside the set.
K. When connecting or disconnecting the internal
connectors, first, disconnect the AC plug from the
AC outlet.

1-2-2 DVDN_ISP
Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and
wires have been returned to their original positions. Afterwards, do the following tests and confirm 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
soldered terminals, and between terminals and
surrounding metallic parts. (See Fig. 1)
Table 1: Ratings for selected area
Note: This table is unofficial and for reference only. 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) and
externally exposed accessible parts (RF terminals,
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):
Insert load Z between B (earth ground, power cord 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
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
AC Line Voltage Clearance Distance (d), (d’)
120 V ≥3.2 mm (0.126 inches)
AC Line Voltage Load Z Leakage Current (i) Earth Ground (B) to:
120 V 0.15 µF CAP. & 1.5 kΩRES.
Connected in parallel i ≤0.5 mA Peak Exposed accessible parts
Chassis or Secondary Conductor
Primary Circuit
Fig. 1
d' d
AC Voltmeter
(High Impedance)
Exposed Accessible Part
BEarth Ground
Power Cord Plug Prongs
Z
Fig. 2

1-3-1 DVDN_PC_SN
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is
indicated as shown.
2. For other ICs, pin 1 and every fifth pin are
indicated as shown.
3. The 1st pin of every male connector is indicated as
shown.
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.
Pb (Lead) Free Solder
When soldering, be sure to use the Pb free solder.
Information about lead-free soldering
Philips CE is producing lead-free sets from 1.1.2005
onwards.
IDENTIFICATION
Regardless of special logo (not always
indicated)
One must treat all sets from
onwards, according to the next rule:
Serial Number gives a 9-digit. Digit 2&3 shows the
WEEK, and digit 4 shows the YEAR.
So from onwards=from 1 Jan 2005 onwards
Important note:In fact also products of year 2004
must be treated in this way as long as you avoid
mixing solder-alloys (leaded/ lead-free). So best to
always use SAC305 and the higher temperatures
belong to this.
Due to lead-free technology some rules have to be
respected by the workshop during a repair:
•Use only lead-free solder alloy Philips SAC305 with
order code 0622 149 00106. If lead-free solder-
paste is required, please contact the manufacturer
of your solder-equipment. In general use of solder-
paste within workshops should be avoided because
paste is not easy to store and to handle.
•Use only adequate solder tools applicable for lead-
free solder alloy. The solder tool must be able
•To reach at least a solder-temperature of 400°C,
•To stabilize the adjusted temperature at the solder-
tip
•To exchange solder-tips for different applications.
•Adjust your solder tool so that a temperature around
360°C - 380°C is reached and stabilized at the
solder joint. Heating-time of the solder-joint should
not exceed ~ 4 sec. Avoid temperatures above
400°C otherwise wear-out of tips will rise drastically
and flux-fluid will be destroyed. To avoid wear-out of
tips switch off un-used equipment, or reduce heat.
•Mix of lead-free solder alloy / parts with leaded
solder alloy / parts is possible but PHILIPS
recommends strongly to avoid mixed solder alloy
types (leaded and lead-free).
If one cannot avoid or does not know whether
product is lead-free, clean carefully the solder-joint
from old solder alloy and re-solder with new solder
alloy (SAC305).
•Use only original spare-parts listed in the Service-
Manuals. Not listed standard-material (commodities)
has to be purchased at external companies.
Top View
Out In
Bottom View
Input
5
10
Pin 1
Pin 1
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
1 Jan 2005
015

1-3-2 DVDN_PC_SN
•Special information for BGA-ICs:
- always use the 12nc-recognizable soldering
temperature profile of the specific BGA (for de-
soldering always use the lead-free temperature
profile, in case of doubt)
- lead free BGA-ICs will be delivered in so-called
'dry-packaging' (sealed pack including a silica gel
pack) to protect the IC against moisture. After
opening, dependent of MSL-level seen on indicator-
label in the bag, the BGA-IC possibly still has to be
baked dry. (MSL=Moisture Sensitivity Level). This
will be communicated via AYS-website.
Do not re-use BGAs at all.
•For sets produced before 1.1.2005 (except products
of 2004), containing leaded solder-alloy and
components, all needed spare-parts will be available
till the end of the service-period. For repair of such
sets nothing changes.
•On our website
www.atyourservice.ce.Philips.com you find more
information to:
•BGA-de-/soldering (+ baking instructions)
•Heating-profiles of BGAs and other ICs used in
Philips-sets
You will find this and more technical information within
the “magazine”, chapter “workshop news”.
For additional questions please contact your local
repair-helpdesk.
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
applying 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
tweezers. (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)
Fig. S-1-1

1-3-3 DVDN_PC_SN
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.
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)
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)
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
tweezers. (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.
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
tweezers. (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
Flat Pack-IC
Desoldering
Machine
CBA
Flat Pack-IC
Tweezers
Masking
Tape
Fig. S-1-2
Flat Pack-IC Desoldering Braid
Soldering Iron
Fig. S-1-3
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldering Iron
CBA
Flat Pack-IC
Tweezers
Fig. S-1-6

1-3-4 DVDN_PC_SN
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 all pins of the flat pack-IC. Be sure that
none of the pins have solder bridges.
Instructions for Handling Semi-
conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by
electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1 MΩ) that is
properly 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 (1 MΩ) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on
clothing will not escape through the body grounding
band, be careful to avoid contacting semi-conductors
with your clothing.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark. Fig. S-1-7
Presolder
CBA
Flat Pack-IC
Fig. S-1-8
<Incorrect>
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ
<Correct>
CBA

1-4-1 E9H90FIS
FUNCTION INDICATOR SYMBOLS
< VCR Section >
Note:
If a mechanical malfunction occurs, the power is turned off. When the power comes on again after that by
pressing [ ] button, an error message is displayed on the TV screen for 5 seconds.
TV screen
When reel or capstan mechanism is not functioning
correctly
When tape loading mechanism is not functioning cor-
rectly
When cassette loading mechanism is not functioning
correctly
When the drum is not working properly
P-ON+5V Power safety detection
Led Mode Indicator Active
When reel or capstan mechanism is not
functioning correctly “AR” is displayed on a TV screen. (Refer to Fig. 1.)
When tape loading mechanism is not
functioning correctly “AT” is displayed on a TV screen. (Refer to Fig. 2.)
When cassette loading mechanism is not
functioning correctly “AC” is displayed on a TV screen. (Refer to Fig. 3.)
When the drum is not working properly “AD” is displayed on a TV screen. (Refer to Fig. 4.)
P-ON+5V Power safety detection “AP” is displayed on a TV screen. (Refer to Fig. 5.)
AR
SP 0:00:00
Fig. 1
AT
SP 0:00:00
Fig. 2
AC
SP 0:00:00
Fig. 3
AD
SP 0:00:00
Fig. 4
AP
SP 0:00:00
Fig. 5

1-4-2 E9H90FIS
< DVD Section >
Note: If an error occurs, a message with the error number appears on the screen.
Message Solution Error
No. Error Description Priority
Can not record on this disc. Insert the recordable disc, and ensurethediscstatussatisfies
the recording requirements.
1 An error occurs during data reading. -
2There is no reply for 15 seconds in Test
Unit Ready. -
3Cannot write the data after trying three
times. -
4 An error occurs with OPC. -
5 During recovery in a record. -
6An error occurs even if recovery has been
tried three times. -
7 An error occurs in a format. -
8 It cannot start an encode. -
9NV_PCK/RDI_PCK is not in encoded
data. -
10 Encode Pause condition continued for 10
minutes. -
11 Encode Pause condition continued in
normal REC condition for 10 minutes. -
12 Difference in the address and can not get
StreamID of RDI/VIDEO. -
13 It is a reply that “ATAPI is not readable.” -
14 Cannot write the data after recovering
SMALL VMGI. -
15 Cannot write the data after DVD-R
Reverse Track. -
16 An error occurs in Finalize Close. -
17 An error occurs in Rec Stop Close. -
18 An error occurs in PCA Full (DVD_R). -
19 Safety Stop occurs during editing. -
20 High Speed Disc. 2
21 The disc is not formatted. 5
22 Disc Error has occurred. 3
24 The disc except DVD-R/RW or finalized
DVD-R. 1
This program is not allowed to
be recorded. You cannot record copy prohibited programs. 25 During the Macrovision picture input. 11
26 During the CGMS picture input. 12
This disc is protected and not
recordable. Release the disc protect
setting in the Disc Setting
menu. 29 Disc Protected Disc. 7
Disc is full.
(No area for new recording) Insert the recordable disc with enough recording space. 30 No available recording space. 5
You cannot record on this disc
as Control Information is full. Delete unnecessary titles. 34 There is not space to record field of control information. 10
Recording Error
You cannot record on this disc as
Power Calibration Area is full.
E35 Error No.
Error message

1-4-3 E9H90FIS
If an error occurs during the timer recording, one of the following error numbers (40 to 42) or the above error
messages (error number: 1 to 39 and 43 to 46) is displayed on the recording menu after timer recording.
(Once the timer programming list with error indication is displayed, the program line(s) with error will be cleared
only after the programs are cancelled and reset to the timer standby mode.)
(In the case of the error occurs during setting the timer programming, no error messages is displayed.)
You cannot record on this disc
as Power Calibration Area is
full. Insert a new disc. 35 PCA is Full. (in REC start) 4
This disc is already finalized. Release the finalizing for this
disc. 36 It is finalized. (Video Format Disc) 6
Can not record on this disc. Repeat the same operation. 37 Access to Memory Area range outside. - 38 Sector Address is wrong. -
39 BUP writing error of chapter editing. -
You cannot record more than
49 titles on the disc.(The
maximum is 49.) Delete unnecessary titles. 43 Its recording capacity has been reached. 9
You cannot record more than
254 chapters on the disc.(The
maximum is 254.) Delete unnecessary chapter
marks. 44 The 254 chapter has been reached. 10
This program is not recordable
in +VR mode. You cannot record copy prohibited programs. 45 During the CGMS picture input. 12
The disc has a different menu
layout. (Set “Replace Disc
Menu” to ON to rewrite the
menu.)
Set “Replace Disc Menu” to
“ON” to rewrite the menu,after
that you will record to. 46 Trying to record onto the +VR formatting
disc that had been recorded by the other
recorder. 7
Message Solution Error
No. Error Description Priority
Error message is not
displayed.
- Set the timer programming
correctly.
- Set the timer programming
before the start time.
- Inserta recordable videotape
with a record tab.
40
- Some portion has not been recorded
because of program overlapping.
- Recording did not start at the start time.
- No Videotape is inserted.
Videotape ran out during recording.
-
Turn the power on and set the
clock correctly then set timer
programming again. 41 Power failed -
Insert the recordable disc. 42 No disc when recording -
Message Solution Error
No. Error Description Priority
A program with the error number is grayed out and asterisked on the timer programming list.
Error Number
Ti
JAN/01
JAN/07
E40 12:00PM
7:00PM
1:00PM
9:00PM
zMON JAN/01 1:01AM
1 / 1
mer Programming
E1
E2
E1/E2

1-5-1 E9H90PFS
PREPARATION FOR SERVICING
How to Enter the Service Mode
About Optical Sensors
Caution:
An optical sensor system is used for the Tape Start
and End Sensors on this equipment. Carefully read
and follow the instructions below. Otherwise the unit
may operate erratically.
What to do for preparation
Insert a tape into the Deck Mechanism Assembly and
press the PLAY button. The tape will be loaded into
the Deck Mechanism Assembly. Make sure the power
is on, connect TP502 (S-INH) to GND. This will stop
the function of Tape Start Sensor, Tape End Sensor
and Reel Sensors. (If these TPs are connected before
plugging in the unit, the function of the sensors will
stay valid.) See Fig. 1.
Note: Because the Tape End Sensors are inactive, do
not run a tape all the way to the start or the end of the
tape to avoid tape damage.
Q1504
Q1503
TP502
S-INH
Fig. 1

1-6-1 E9H90IB
OPERATING CONTROLS AND FUNCTIONS

1-6-2 E9H90IB

1-6-3 E9H90IB

1-6-4 E9H90IB

1-7-1 E9H90SNA
SIGNAL NAME ABBREVIATIONS
TDRESETSignal Name Function
-FL FIP Drive Power Supply
1V2CONT Power Regulator Control Signal
A-COM Audio Head Common
ADVV Power Supply
AE-H Audio Erase Head
AE-H/FE/H Audio Erase Head / Full Erase
Head
AFC Automatic Frequency Control
Signal
AFCC Low Path Filter Input Signal For
AFC
AFCLPF Low Path Filter Output Signal For
AFC
AFG Ground
AFT-OUT Tuner Voltage Input Signal Output
AL+12V Always +12V with AC Plug
Connected
AL+18V Always +18V with AC Plug
Connected
AL+2.8V Always +2.8V with AC Plug
Connected
AL+44V Always +44V with AC Plug
Connected
AL+4V Always +4V with AC Plug
Connected
AL+5V Always +5V with AC Plug
Connected
AL-30V Always -30V with AC Plug
Connected
AL-5V Always -5V with AC Plug
Connected
ATU-AUDIO(L) Tuner Audio Left Signal (Analog)
ATU-AUDIO(R) Tuner AudioRight Signal (Analog)
ATU-VIDEO Tuner Video Signal (Analog)
AUDIO(L)-IN Audio Left Signal Input
AUDIO(L)-OUT Audio Left Signal Output
AUDIO(R)-IN Audio Right Signal Input
AUDIO(R)-OUT Audio Right Signal Output
AUDIO+5V +5V Power Supply (Audio)
AUDIO-MUTE Audio Mute Control Signal (Mute =
“H”)
AUDIO-PB/REC Normal Audio Play Back / Record
Signal
AUDIO-SW1 Audio Input Select Signal 1
AUDIO-SW2 Audio Input Select Signal 2
AUDIO-SW3 Audio Input Select Signal 3
AVSS Ground
ADVV +5V Power Supply
BUS-CONT BUS Control Signal
C-CONT Capstan Motor Control Signal
C-F/R Capstan Motor FWD/REV Control
Signal (FWD=”L”/REV=”H”)
C-FG Capstan Motor Rotation Detection
Pulse
C-IN2 S-Video (Chrominance) Signal
C-ROTA Color Phase Rotary Changeover
Signal
C-SYNC Composite Synchronized Pulse
C-SYNC-IN Composite Synchronized Pulse
CTL Amp. Output Control Signal for Test
Point
CTL (+) Playback/Record Control Signal (+)
CTL (-) Playback/Record Control Signal (-)
CTLA CTL Amp. AC Ground
D-CONT Drum Motor Control Signal
D-PFG Drum PG/FG Input Signal
D-REC Delayed Record Signal
D-V SYNC Dummy V-sync Output
DISPLAY- CLK FL Display Driver IC Clock Control
Output Signal
DISPLAY-DATA FL Display Driver IC Data Control
Output Signal
DISPLAY-ENA FL Display Driver IC Enable Control
Output Signal
DTV-VIDEO DTV Video Signal
DTV/ANALOG DTV/ANALOG Select Signal
DTV1.05V-
CONT DTV1.05 Control Signal
DVD POWER-
SAFETY DVD Power Supply Safety Signal
DVD POWER-
SAFETY2 DVD Power Supply Safety Signal
DVD+5V +5V Power Supply (DVD)
DVD-AUDIO(L) DVD Audio Left Signal
DVD-AUDIO(R) DVD Audio Right Signal
DVD-AUDIO-
MUTE DVD Audio Mute Control Signal
DVD-LED DVD LED Control Signal
END-S Tape End Position Detect Signal
EV+10.5V +10.5V Power Supply
EV+2.4V +2.4V Power Supply
EV+2.8V +2.8V Power Supply
EV+33V +33V Power Supply
F1 Filament Power Supply 1
F2 Filament Power Supply 2
FAN Fan Motor
FAN-CONT Fan Motor Control Signal
Signal Name Function

1-7-2 E9H90SNA
FE-H Full Erase Head
FE-H-GND Full Erase Head Ground
GND Ground
H-A-COMP Head Amp Comparator Signal
H-A-SW Video Head Amp Switching Pulse
Hi-Fi-AUDIO(L) Hi-Fi Audio Left Head
Hi-Fi-AUDIO(R) Hi-Fi Audio Right Head
Hi-Fi-COM Hi-Fi Audio Head Common
Hi-Fi-H-SW Hi-Fi Audio Head Switching Pulse
Hi-Fi/NOMAL-IN Audio Mode Input HiFi=”L”/
Normal=”H”
Hi-Fi/NOR-IN Audio Mode Input HiFi=”L”/
Normal=”H”
IIC-BUS SCL IIC BUS Serial Clock
IIC-BUS SDA IIC BUS Serial Data
KEY-1 Key Data Input 1
KEY-2 Key Data Input 2
LD-SW Deck Mode Position Detector
Signal
LINE(L)-IN External Input Left Signal
LINE(L)-OUT External Output Left Signal
LINE(R)-IN External Input Right Signal
LINE(R)-OUT External Output Right Signal
LM-FWD/ REV Loading Motor FWD/ REV Output
N-A-IN Normal Audio Input
N-A-OUT Normal Audio Output
NORMAL-L Normal Audio Control Signal
(Normal = “L”)
OPEN/CLOSE-
SW Disk Tray Open / Close Switch
OSCI Main Clock Input 14.31818MHz
OSCO Main Clock Output 14.31818MHz
OUTPUT-
SELECT Output Select (DVD=”L”/VCR=”H”)
P-DOWN-H Power Voltage Down Detector
Signal
P-ON+1.8V +1.8V at Power On Signal
P-ON+11V +11V at Power On Signal
P-ON+2.5V +2.5V at Power On Signal
P-ON+3.3V +3.3V at Power On Signal
P-ON+5V +5V at Power On Signal
P-ON+9V +9V at Power On Signal
P-ON-L Power On Signal to Low
PB/EE-VIDEO PB/EE Video Signal
PG-DELAY Video Head Switching Pulse Signal
Adjusted Voltage
POWER-LED Power LED Control Signal
POWER-
SAFETY Power Supply Safety Signal
POWER-SW DVD Power Supply Control Signal
Signal Name Function PWR-SW DVD Power Supply Control Signal
READY/BUSY1 Ready/Busy Communication
Control Signal
REC-SAF-SW Recording Safety SW Detect (With Record tab = ”L”/ With out Record
tab = ”H”)
REG-CONT1 Power Regulator Control Signal 1
REG-CONT2 Power Regulator Control Signal 2
REMOTE Remote Signal Input
RESET Micro Controller Reset Signal
RF-SW Video Head Switching Pulse
S-CLK Communication of Clock with VCR
Micro Controller
S-DATA-IN Communication of Data to VCR
Micro Controller
S-DATA-OUT Communication of Data from VCR
Micro Controller
SDA Serial Data
SPDIF Digital Audio Interface Format
Signal
ST-S Tape Start Position Detector Signal
SXI Operation Mode Selecting Input
Signal
SYS-RESET1 System Reset Signal (Reset=”L”)
T-REEL Take Up Reel Rotation Signal
TCLK Test Clock
TDI Test Data Input
TDO Test Data Output
TIMER+5V +5V Power Supply (Timer)
TU-AUDIO(L) Tuner Audio Left Signal
TU-AUDIO(R) Tuner Audio Right Signal
TU-VIDEO Tuner Video Signal
V-ENV Video Envelope Comparator Signal
VCR POWER-
SAFETY VCR Power Supply Safety Signal
VCR-AUDIO-
MUTE VCR Audio Mute Control Signal
VCR-LED VCR LED Control Signal
VCR-VIDEO VCR Video Control Signal
VDD Always +5V with AC Plug
Connected
VDD2 Always +5V with AC Plug
Connected
VIDEO Video Signal
VIDEO(L) Video Left Head
VIDEO(R) Video Right Head
VIDEO-C S-Video (Chrominance) Signal
VIDEO-C-IN S-Video (Chrominance) Signal
Input
VIDEO-C-OUT S-Video (Chrominance) Signal
Output
Signal Name Function

1-7-3 E9H90SNA
VIDEO-COM Video Head Common Terminal
VIDEO-IN Composite Video Signal Input
VIDEO-MUTE Video Mute Control Signal
VIDEO-OUT Composite Video Signal Output
VIDEO-Pb/Cb Component Video Signal (Pb/Cb)
VIDEO-Pb/Cb-
OUT Component Video Signal (Pb/Cb) Output
VIDEO-Pr/Cr Component Video Signal (Pr/Cr)
VIDEO-Pr/Cr-
OUT Component Video Signal (Pr/Cr) Output
VIDEO-SW1 Video Input Select Signal 1
VIDEO-SW2 Video Input Select Signal 2
VIDEO-SW3 Video Input Select Signal 3
VIDEO-Y(I) S-Video (Luminance)
Signal (Interlace)
VIDEO-Y(I)-
OUT S-Video (Luminance) Signal (Interlace / Progressive) Output
VIDEO-Y(I/P) Component Video (Luminance)
Signal (Interlace / Progressive)
VIDEO-Y(I/P)-
OUT Component Video (Luminance)
Signal (Interlace / Progressive)
Output
VIDEO-Y/
CVBS-IN S-Video (Luminance) / Composite Video Signal
VRI Servo Standard Voltage Input
VRO Servo Standard Voltage Output
VSS Ground
XI Main Clock Input
XO Main Clock Output
Y-IN2 S-Video (Luminance) Signal
YCA-CS YCA IC Chip Select
YCA-SCL YCA IC Serial Clock
YCA-SDA YCA IC Serial Data
Signal Name Function