Table Of Contents - Philips VR6491 Service Manual

TABLE OF CONTENTS
CHAPTER 1
1. Specification
2. Description of controls
3. Service instructions
. Service test program
. Service position
. Manual unloading of VCR
Service of capstan rotor
. Use of variable transformer
. Measures against ESD
. Measuring conditions
. Servicing Head amp. unit
. Servicing PIP module
10. Connecting/disconnecting of plugs
11. Identification of plugs
4, Disassembly of cabinet parts and service
position 1-6 of CBA's
1. Disassembly flow chart
2. Removal of top cover
3. Removal of bottom plate
4, Removal of front cover
5. Service position of upper CBA's
6.
7.
8.
OPNOTAYNo
Removal of power supply unit
Removal of the lower CBA
Removal of the rear holder
9. Removal of the upper CBA from
the rear holder
10. Removal of the video head amplifier
11. Removal of the tape deck
12. Removal of the display/control
IR sensor CBA's
5, Electrical adjustment procedures
1. Test equipment
2. Servo section
3. Linear Audio section
4. Video section
5. Timer tuning section
6. Picture in picture section
6. Location of Test points
CS 27 430
1-9
1-10
1-10
1-11
1-11
1-12
CHAPTER 2
Overall block diagram 1
Overall block diagram 2
Luminance block diagram
Chrominance block diagram
Head amplifier block diagram
Linear audio block diagram
UHF/VHF tuner block diagram
Power supply block diagram
Cylinder servo block diagram
Capstan servo block diagram
PIP block diagram
Wiring block diagram
Audio/Video selector CBA drawing
Audio/Video selector circuit diagram (1104)
Luminance circuit diagram (IVA-1)
Chrominance circuit diagram (IVA-2)
Chrominance sub circuit diagram (IVA-3)
Head amplifier circuit diagram (IHA-4)
Luminance/Chrominance/Tuner Timer/Logic
{Servo CBA drawing (PM01)
Linear Audio circuit diagram (IAD-4)
UHF/VHF Tuner TV demodulator circuit
diagram (IFE-4)
Timer Tuning circuit diagram (ITT)
Logic circuit diagram (IDE-1)
Servo circuit diagram (IDE~2)
Driver circuit diagram (IDE-3)
PIP Analog circuit diagram(IPI-1)
Audio/Front-end/Servo (IDE-3), PIP Analog CBA
(PM-02)
PIP Digital circuit diagram (IPI-2)
PIP Digital CBA (PP-01)
Display/Control CBA (PC-01, PC-02)
Display/Control circuit diagram (IDC)
Power supply circuit diagram
CHAPTER 3
Cabinet exploded view
Tape deck exploded view (Bottom)
Tape deck exploded view (Top)
Tape deck exploded view (Cassette compartment)
Parts list
Pag.
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-14
2-15
2-16
2417
2-18
2-20
2-21
2-22
2-23
2-24
2-25
2-26
2-27
2-28
2-29
2-30
2-31
2-32
3-1
3-2
3-3
3-4
3-5