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21PV320
Philips 21PV320 Service Manual
197 pages
Manual
Specs
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2
Table of Contents
Table of Contents
2
Survey of Sets and Features
3
Survey of the Boards
5
Updating the Service Manual
7
Modifications in the Set
7
Technical Data
8
Safety Instructions
9
Operating Instructions
10
The Remote Control
11
Back/Front of the Set
12
Connections
14
Installation
14
Connecting the Cables
14
Automatic Clock and Date Setting (Smart Clock)
14
Allocating a Decoder
15
Manual Tv/Radio Channel Search
15
Satellite Receiver
15
Automatic TV Channel Search
15
Channel Number Allocation
16
Delete a TV Channel
16
Setting the Language/Country
16
Setting the Time and Date
16
Important Notes for Operation
17
TV Set Functions
17
Selecting a TV Programme
17
Volume Control
17
Radio Functions
18
Playback Functions
18
Playing a Cassette
18
Tape Position Indication
18
Manual Recording
19
Tracking During Playback
19
Recording Without Automatic Switch-Of
19
Selecting the Recording Speed (SP or LP)
19
Programmed Recording (Timer)
20
VPS (Video Programming System) and PDC (Programme Delivery Control)
20
Programming a Recording (With/Without 'Videoplus')
20
How to Check/Change/Clear a Timer
21
How to Read Teletext
21
Changing the TV System
21
Parental Control
21
Switching the On-Screen Display (OSD) on or off
22
Continuous Playback
22
Switch off Function (Sleep Timer)
22
Switch on Function (Wake-Up Timer)
22
List of Signal Abbreviations
23
Adjustment Procedures
29
Maintenance of the VCR and TV Parts
29
Service Position for the Recorder Part
29
Service Position for the TV Board (TVB)
29
Test Point Information
30
Removal or Installation of Flat Cables
30
Removing the Keypad Printed Board
30
Method for Manual VCR Loading/Unloading
31
Service Test Program
32
Calling up the Service Test Program
33
Service Status Menu
33
Function of the Init Switch
33
Tape Start/Tape End Detection
33
Head Drum Pulses
34
Drive Status
34
Boot Software
34
Drive Error Codes
34
Service Control Menu
35
Deleting the Eeproms
35
I2C-Bus Error
35
Display on the Second Tuner
35
Hotel Mode
36
Option Codes
36
Basic TV Settings
36
Autom. Black Current Control (ABS Loop)
36
Customer Service Mode (CSM)
37
Calling up the Customer Service Mode
37
Operation Inside the CSM
37
How to Move the Cassette Holder to the down Position
39
How to Remove the Lift Assembly
39
Variable Voltage Isolation Transformer
40
Cleaning with 91% Isopropyl Alcohol
40
High Voltage Components
40
How to Read the Disassembly/Assembly Procedures
40
Mechanical Adjustment Procedures
41
Dismantling the Cabinet Parts
41
Procedure Fore Cleaning the Head Drum
44
Tape Deck Mechanism
44
Deck Parts Replacement
44
Upper Cylinder Replacement
45
Replacing the Scanner Assy/Head Drum Motor
47
Position Adjustment of the Tension Arm
47
Brake Band Adjustment
47
Tape Tension Adjustment
47
Tape Path Adjustment (Final Adjustment)
48
Audio/Ctl Head Adjustment/Tilt Angle Adjustment
48
Height and Azimuth Adjustments
48
Control with the TRIV Signal of the Tape Path Adjustment
49
"X" Distance Adjustment
49
Left and Right Roller Unit
49
Friction Clutch Control in Playback
50
Reverse Brake Control
50
Capstan Motor Replacement
50
Disassembly/Assembly Procedures of Mechanism
51
Mechanism View
52
Pressure Roller
53
Loading Motor
53
Audio/Ctl Head
54
Right Roller Unit
54
Left Roller Unit
55
Mechanical Alignment Procedures
57
Circuit Description
58
Large Signal Part
58
Description of Different Load Operations
58
Control Range
58
Large Signal Processing (TV, LS, PT) - TVBAD
59
TV-IC Tda884X (IC7205) Controlled Using I2C Bus
59
Horizontal Deflection Stage
60
East-West Image Geometry Correction Stage
60
Vertical Deflection Stage
60
Circuit Breaker
60
Small Signal Part
61
Control Part (AIO1, AIO2, CVB) - RUBAD
61
Overview of Functions
62
Main Computer
62
Bus System
62
Keypad Evaluation
62
Control Section on the TV Board (COTV) - TVBAD
63
LED Control
63
Display Printed Board KB1D
63
Clock IC
63
Deck Electronics (DE) - RUBAD
64
Deck Interface SAA 1310
64
Head Drum Motor Driver
64
Interface to the Capstan Motor/Loading Motor Driver
64
Audio (AF, AL, AP, AMP, IO, SF, ACO) - RUBAD, TVBAD, SFD
65
Analog Interface to the AIO
65
Audio In/Out
65
Sound Processing and View Mode
65
Dolby Decoding - APDOD
66
Linear Audio Recording and Playback
66
FM Audio Recording and Playback
66
Receiver Part (TU1 TU2) - TVBAD, RUBAD
67
Hifi Audio Interface to the Linear Audio
67
Front End 1 (TV Tuner)
67
Multi-Standard Sound Demodulator
67
Single Standard Mono Intercarrier Front End to the TV
68
Dual Standard Mono QSS Front End for the BG/DK and BG/I
68
Multi-Standard Mono FM/AM QSS Front End for the TV Standards BG/I/L,L'
68
Video In/Out (IO_1, TV, VS, HPAV) - RUBAD, TVBAD
69
Video Signal Processing (VS, VSEC) - RUBAD
71
Switchover Functions on the Signal Electronics IC LA71527
71
Recording
71
Luminance
71
TV Signal Processing (TV) - TVBAD
72
Playback
72
Video Signal Processing
72
Chroma PAL
72
Chroma Signal Processing
73
RGB Signal Processing
73
TV Synchronization
73
Supply Diagrams
74
Electrical Settings
79
Measuring Instruments
79
Setting Instructions
79
Settings
80
Power Supply Unit (PS)
80
Clock Setting
80
Tuner 1 (TV)
80
Tuner 2
81
Automatic Frequency Control
81
AFC 2 Reference
81
Automatic Gain Control AGC 2
81
Servo-System (DE)
82
Luminance and Chrominance (VS, VSEC)
82
Gap Position
82
SECAM Recording Current
82
Audio Part
83
Studio Picture Control SPC
83
Erase Frequency
83
BIAS Magnetic Biasing Current
83
TV and Picture Tube Settings
84
Cut-Off
84
Focus
84
Audio Playback Level
84
Horizontal Picture Position
85
Vertical Picture Position, Picture Amplitude and Slope
85
East/West Adjustments
85
Adjusting the Whiteness
86
East/West-Width
86
East/West-Parabola
86
East/West Corner Parabola
86
Interconnection Wiring Diagram
87
Block Diagrams
89
Schematic Diagrams
99
Variant List Tuner 1 - TV Board (TVBAD)
155
Variant List Tuner 2 - Recorder Unit Board (RUBAD)
156
Component Mapping TV Board (TVBAD)
157
Waveform Photographs
158
Exploded Views
162
Set Parts List
175
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Product Information
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Philips 21PV320 Specifications
General
Screen Size
21 inches
VCR Type
VHS
Aspect Ratio
4:3
Audio Output
Mono
Display Technology
CRT
Tuner
Analog
Remote Control
Yes
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