Philips FW-C50/37 Service Manual
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Philips FW-C50/37 Service Manual

Philips FW-C50/37 Service Manual

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Download this manual See also: Owner's Manual
Color Television
Service
Service
Service
ServiceManual
Contents
4. Mechanical Instructions
6. Block Diagrams and Testpoints
7. Electrical Diagrams and PWB's
OVERALL WIRING DIAGRAM
FRONT BOARD SCHEMATIC DIAGRAM
CDC KEY & STANDBY LED CIRCUIT DIAGRAMS
KARAOKE BOARD CIRCUIT DIAGRAM
TUNER BOARD - ECO5 CIRCUIT DIAGRAM
RECORDER - MTF BOARD CIRCUIT DIAGRAM
CD BOARD - 3CDC-LC CIRCUIT DIAGRAM, PART 1
CD BOARD - 3CDC-LC CIRCUIT DIAGRAM, PART 2
POWER 4-99 CIRCUIT - SUPPLY PART
POWER 4-99 CIRCUIT - L/R AMPLIFIER PART
HEADPHONE BOARD CIRCUIT DIAGRAM
AF6 BOARD CIRCUIT DIAGRAM, PART 1
AF6 BOARD CIRCUIT DIAGRAM, PART 2
AF6 BOARD - DOLBY PRO-LOGIC CIRCUIT
FRONT BOARD CBA (TOP VIEW)
FRONT BOARD CBA (BOTTOM VIEW)
CDC KEYBOARD & STANDBY LED CBAs (BOTH SIDES)
KARAOKE BOARD CBA (TOP VIEW)
KARAOKE BOARD CBA (BOTTOM VIEW)
RECORDER - MTF BOARD CBA (TOP VIEW)
RECORDER - MTF BOARD CBA (BOTTOM VIEW)
CD BOARD - 3CDC-LC CBA (TOP VIEW)
CD BOARD - 3CDC-LC CBA (BOTTOM VIEW)
POWER MODULE P4-99 CBA (TOP VIEW)
POWER MODULE P4-99 CBA (BOTTOM VIEW)
HEADPHONE BOARD CBAs (BOTH SIDES)
AF6 BOARD CBA (TOP SIDE)
AF6 BOARD CBA (BOTTOM SIDE)
8. Adjustments
9. Circuit Description
10. Spare Parts List
©
Copyright 2001 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 means, electronic, mechanical,
photographic, or otherwise without the prior permission of Philips.
Published by Philips Consumer Electronics
Contents
00
00
Diagram PWB
1
0
2
15
3
17
4
18
5
101
6
20
7
22
8
22
9
24
10
24
11
26
12
27
13
27
14
27
15
0
16
0
17
18
19
20
21
22
23
24
25
26
27
28
00
00
00
Subject to modification
Chassis
FW-C50/37
1941
2005 Nov 10

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Summary of Contents for Philips FW-C50/37

  • Page 1 10. Spare Parts List © Copyright 2001 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 means, electronic, mechanical, photographic, or otherwise without the prior permission of Philips.

  • Page 2: Safety Checks

    GENERAL SAFETY NOTES IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Philips Consumer Electronics Company** equipment. The service procedures recommended by Philips and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.

  • Page 3: Fire And Shock Hazard

    PICTURE TUBE REPLACEMENT PARTS REPLACEMENT FIRE AND SHOCK HAZARD 1. Be sure all components are positioned in such a way as to avoid the possibility of adjacent component shorts. This is especially important on those chassis which are transported to and from the service shop.

  • Page 4: Leakage Current Cold Check

    X-RADIATION 1. Be sure procedures and instructions to all your service personnel cover the subject of X-radiation. Potential sources of X-rays in TV receivers are the picture tube and the high voltage circuits. The basic precaution which must be exercised is to keep the high voltage at the factory recommended level. 2.

  • Page 5: Leakage Current Hot Check

    jumper from the ac line cord. LEAKAGE CURRENT HOT CHECK 1. Do not use an isolation transformer for this test. Plug the completely reassembled receiver directly into the ac outlet. 1.5k, 1OW resistor 0.15uF. capacitor 2. Connect a paralleled by a between each exposed good earth ground metallic cabinet part and a...

  • Page 6: Picture Tube Replacement

    The use of a substitute part which does not have the same safety characteristics as the Philips recommended replacement part shown in this service manual may create shock, fire, or other hazards...

  • Page 7: Important Safety Precautions

    IMPLOSION X-RADIATION PICTURE TUBE REPLACEMENT PARTS REPLACEMENT WARNING Before removing the CRT anode cap, turn the unit OFF and short the HIGH VOLTAGE to the CRT DAG ground. SERVICE NOTE: The CRT DAG is not at chassis ground. TV-VCR COMBI SAFETY NOTES IMPORTANT SAFETY PRECAUTIONS Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold.
  • Page 8 OR BEFORE CONNECTING THE ANTENNA OR ACCESSORIES. d. X-Radiation and High Voltage Limits - Because the picture tube is the primary potential source of X-radiation in solid-state TV receivers, it is specially constructed to prohibit X-radiation emissions. For continued X-radiation protection, the replacement picture tube must be the same type as the original.

  • Page 9: Precautions During Service

    6. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a. near sharp edges, b. near thermally hot parts - be sure that leads and components do not touch thermally hot parts, c. the ac supply, d. high voltage, and e. antenna wiring. Always inspect in all areas for pinched, out of place, or frayed wiring.

  • Page 10: Safety Check After Servicing

    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.
  • Page 11 LEAKAGE CURRENT CHECKS VCR SAFETY NOTES FIRE & SHOCK HAZARD (VCR) 1. Be sure that all components are positioned in such a way to avoid possibility of shorts to adjacent components. This is especially important on those chassis which are transported to and from the repair shop.

  • Page 12: Important Notice

    Power Supply-This receiver is designed for operation on 120 Volts, 6OHz alternating current (ac) only. Never connect to a supply having a different frequency or voltage. IMPORTANT NOTICE This device employs many circuits, components, and mechanical parts designed for protection against fire, shock and RF interference.
  • Page 13 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. CAUTION : Be sure no power is applied to the chassis or circuit and observe all other safety precautions.

  • Page 33: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS Dismantling of the Cassette Cover Display Cassette Cover Removal Display Cassette Cover Dismantling of the CDC Module and Front Panel Display Main Unit Exploded View to observe pos item numbers. 1) Loosen 18 screws to remove the Cabinet Rear (pos 259) of the set :- - 5 screws each on the left side &...

  • Page 34: Service Positions

    Display Main Unit Exploded View to observe pos item numbers. • The Volume Rotary Knob (pos 140) can be removed by inserting a strong string into the slot and pulling it out in the direction indicated below. Display Volume Kob Removal Repair Hint - Power Module Re-Assembly •...
  • Page 35 Display Main Unit Exploded View to observe pos item numbers.
  • Page 58 MAIN CABINET EXPLODED VIEW...
  • Page 59 RECORDER BOARD MOUNTING DETAIL...
  • Page 60 TAPE MECHANISM EXPLODED VIEW...
  • Page 61 3CDC - LT MODULE ASM. EXPLODED VIEW...
  • Page 62 CD DRAWER BOTTOM VIEW...
  • Page 63 CD DRAWER TOP VIEW...

  • Page 64: General Information

    General Information Manual 1941 – FW-C50/37 Display FW-C50/37 Product View Safety & Warning Notices Display Warning & Safety Notice Version Variations: Type / Versions: FW-C50 Features & Board in used: Aux In Line Out Surround Out Subwoofer Out Digital Out...
  • Page 65 230-240V for /30 Mains frequency : 50/60Hz Power consumption : < 15W at Standby 75W at 1/8 rated power out Clock accuracy : < 4 seconds per day Dimension centre unit : 265 x 310 x 390mm TUNER: Tuning range : 87.5-108MHz 65.81-74MHz for /34 Grid...

  • Page 66: Service Aids

    Output power (6ohm, 60Hz-12.5kHz, 10% THD) L & R : 2 x 45W Surround : 2 x 7W Frequency response within -3dB : 40Hz-20kHz Dynamic Bass Boost : BEAT, PUNCH, BLAST, DBB OFF 1) Digital Sound Control : Optimal, Classic, Techno, Jazz, Rock, Vocal 1) Headphone output at 32 ohm : 15mW ±...

  • Page 67: Measurement Setups

    SBC419 Test cassette CrO2 4822 397 30069 SBC420 Test cassette Fe 4822 397 30071 MTT150 Dolby level 200nWb/M 4822 397 30271 Compact Disc: SBC426/426A Test disc 5 + 5A 4822 397 30096 SBC442 Audio Burn-in Test disc 1kHz 4822 397 30155 SBC429 Audio Signals disc 4822 397 30184 Dolby Pro-logic Test Disc...
  • Page 68 Display Warning & Safety Notice...
  • Page 69 Display Chip Component Removal & Replacement...
  • Page 70 Display Tuner FM Measurement Setup...
  • Page 71 Display Tuner AM Measurement Setup...
  • Page 72 Display CD Measurement Setup...
  • Page 73 Display Recorder Measurement Setup...
  • Page 74 Display Panel Location Guide...

  • Page 75: Safety Instructions

    ADJUSTMENTS Safety Instructions: Display Safety & Warning Notices Service Aids: Service Tools: Universal Torx driver holder 4822 395 91019 Torx bit T10 150mm 4822 395 50456 Torx driver set T6 - T20 4822 395 50145 Torx driver T10 extended 4822 395 50423 Cassette: SBC419 Test cassette CrO2 4822 397 30069...
  • Page 76 Display Tuner PCB Bottom View Display Tape Module Adjustment Table - MTF Module Display Recorder PCB Bottom View Servicing the CD Drive ESD Warning - CD Drive WARNING: CHARGED CAPACITORS ON THE SERVO BOARD MAY DAMAGE THE CD DRIVE ELECTRONICS WHEN CONNECTING A NEW CDM MECHANISM. THAT'S WHY, BESIDES THE SAFETY MEASURES LIKE- •...
  • Page 77 Display Safety & Warning Notices...
  • Page 78 Display Panel/Board Location Guide...
  • Page 79 Display Service Test Program...
  • Page 80 Display Tuner Adjustment Table - EC05 Tuner...
  • Page 81 Display Tape Module Adjustment Table - MTF Module...
  • Page 82 Display Recorder PCB Bottom View...

  • Page 83: Training Information

    TRAINING INFORMATION Block Diagrams Overall Block Diagram Tuner Block Diagram, EC05 Tuner Tape Module Block Diagram, MTF Module CD Block Diagram, 3CDC – LC Module Circuit Descriptions: Power 4-99 Module (2 Ch. Ver.) Supply-part (pos. numbers refer to circuit diagram) General The primary circuitry depends on the version: •...
  • Page 84 Generation of +A Common full wave rectifying with bridge rectifier 6201, using 100% secondary winding of mains transformer (pin 11-15). Generation of +B1/+B2 The power supply is designed to cover both, 2-channel and 4-channel application. While for 2-channel application only one supply voltage +B1 is sufficient, 4-channel application requires an additional supply part +B2 which supplies the Center/Surround-amplifiers and the +12V-regulator (current required by 4 amplifiers would overload a single rectifier).
  • Page 85 +12V-regulator (pos. numbers refer to circuit diagram chapter 11-9) Is used to supply all motors (+12M) and all analogue circuits (+12A) in the set. +12C is provisional only. • Power on/off: Switching on/off is done via the STBY-line from the microprocessor. H=ON, L=OFF If the STBY line is high - transistor 7222 is conductive.
  • Page 86 • Super class G - operation The power amplifiers operate as so-called super class G - amplifiers: The supply pins 12 (Vcc) are not just connected to one fixed DC-supply as in conventional amplifiers. Dependent on the output power there are three different DC-voltages supplied to the power amplifiers: +C (+18V) for low output power +B (+25V) for medium output power +A (+36V for high output power...
  • Page 87 (e.g. FB206,FB208). AF6 Board (Source Select & Audio Control) Brief Introduction The AF6 Board consists of the following features : SOFAC IC SOFAC IC TEA6321 (7511) which includes functions such as source selection, loudness control, dynamic bass control, treble control, front/rear volume control and muting function. Sound features such as DBB, DSC and IS are controllable via I C Bus from the microprocessor.
  • Page 88 Overall Block Diagram...
  • Page 89 Tuner Block Diagram, EC05 Tuner...
  • Page 90 Tape Module Block Diagram, MTF Module...
  • Page 91 CD Block Diagram, 3CDC – LC Module...
  • Page 92 (pos. numbers refer to circuit diagram)
  • Page 93 Display +B2 Supply Voltage Generation...
  • Page 94 Display +C Supply Voltage Gereration...
  • Page 95 Display Simplified +C Generation...
  • Page 96 All Models (1941) - OVERALL WIRING DIAGRAM...
  • Page 97 All Models (1941) - FRONT BOARD SCHEMATIC DIAGRAM...
  • Page 98 All Models (1941) - CDC KEY & STANDBY LED CIRCUIT DIAGRAMS...

  • Page 99: Karaoke Board Circuit Diagram 4

    All Models (1941) - KARAOKE BOARD CIRCUIT DIAGRAM...

  • Page 100: Tuner Board - Eco5 Circuit Diagram 5

    All Models (1941) - TUNER BOARD - ECO5 CIRCUIT DIAGRAM...

  • Page 101: Recorder - Mtf Board Circuit Diagram 6

    All Models (1941) - RECORDER - MTF BOARD CIRCUIT DIAGRAM...

  • Page 102: Cd Board - 3Cdc-Lc Circuit Diagram, Part 1 7

    All Models (1941) - CD BOARD - 3CDC-LC CIRCUIT DIAGRAM, PART 1...

  • Page 103: Cd Board - 3Cdc-Lc Circuit Diagram, Part 2 8

    All Models (1941) - CD BOARD - 3CDC-LC CIRCUIT DIAGRAM, PART 2...

  • Page 104: Power 4-99 Circuit - Supply Part 9

    All Models (1941) - POWER 4-99 CIRCUIT - SUPPLY PART...
  • Page 105 All Models (1941) - POWER 4-99 CIRCUIT - L/R AMPLIFIER PART...
  • Page 106 All Models (1941) - HEADPHONE BOARD CIRCUIT DIAGRAM...
  • Page 107 All Models (1941) - AF6 BOARD CIRCUIT DIAGRAM, PART 1...
  • Page 108 All Models (1941) - AF6 BOARD CIRCUIT DIAGRAM, PART 2...
  • Page 109 All Models (1941) - AF6 BOARD - DOLBY PRO-LOGIC CIRCUIT...
  • Page 110 All Models (1941) - FRONT BOARD CBA (TOP VIEW)
  • Page 111 All Models (1941) - FRONT BOARD CBA (BOTTOM VIEW)

  • Page 112: Cdc Keyboard & Standby Led Cbas (Both Sides)

    All Models (1941) - CDC KEYBOARD & STANDBY LED CBAs (BOTH SIDES)

  • Page 113: Karaoke Board Cba (Top View)

    All Models (1941) - KARAOKE BOARD CBA (TOP VIEW)

  • Page 114: Karaoke Board Cba (Bottom View)

    All Models (1941) - KARAOKE BOARD CBA (BOTTOM VIEW)

  • Page 115: Recorder - Mtf Board Cba (Top View)

    All Models (1941) - RECORDER - MTF BOARD CBA (TOP VIEW)

  • Page 116: Recorder - Mtf Board Cba (Bottom View)

    All Models (1941) - RECORDER - MTF BOARD CBA (BOTTOM VIEW)

  • Page 117: Cd Board - 3Cdc-Lc Cba (Top View)

    All Models (1941) - CD BOARD - 3CDC-LC CBA (TOP VIEW)

  • Page 118: Cd Board - 3Cdc-Lc Cba (Bottom View)

    All Models (1941) - CD BOARD - 3CDC-LC CBA (BOTTOM VIEW)

  • Page 119: Power Module P4-99 Cba (Top View)

    All Models (1941) - POWER MODULE P4-99 CBA (TOP VIEW)

  • Page 120: Power Module P4-99 Cba (Bottom View)

    All Models (1941) - POWER MODULE P4-99 CBA (BOTTOM VIEW)

  • Page 121: Headphone Board Cbas (Both Sides)

    All Models (1941) - HEADPHONE BOARD CBAs (BOTH SIDES)

  • Page 122: Af6 Board Cba (Top Side)

    All Models (1941) - AF6 BOARD CBA (TOP SIDE)

  • Page 123: Af6 Board Cba (Bottom Side)

    All Models (1941) - AF6 BOARD CBA (BOTTOM SIDE)
  • Page 124 FWC50C37 - Manual no. 1941 FRONT BOARD PARTS LIST 3401 10k, 1%, 0.1W... . 4822 117 10833 3402 1k, 2%, 0.25W... . 4822 051 10102 FRONT BOARD PARTS LIST 3403...
  • Page 125 FWC50C37 (continued) 3509 220 ohm, 1%, 0.1W..4822 117 11503 4459 0 ohm, Jumper 0805 ..4822 051 20008 3510 220 ohm, 1%, 0.1W..4822 117 11503 4460 0 ohm, Jumper 0805 .
  • Page 126 FWC50C37 (continued) 2109 10pF., 5%, 50V, for LW version . . . 5322 122 32448 4103 0 ohm, Jumper 0805 ..4822 051 20008 2120 27pF., 1%, 63V, for LW version . . . 4822 126 13691 4104 0 ohm, Jumper 0805 .
  • Page 127 FWC50C37 (continued) MISCELLANEOUS 3736 2.2k, 5%, 0.16W... 4822 116 52256 1707 SWITCH SLIDE, REC/PB ..4822 277 11504 3737 330k, 5%, 0.5W ... 4822 116 52272 1710 FFC-SOCKET 6Pin, SIDE ENTRY, (not on...
  • Page 128 FWC50C37 (continued) 2862 220pF., 5%, 63V... 4822 122 33575 2863 220pF., 5%, 63V... 4822 122 33575 3CDC-LC MODULE ASM. PARTS LIST 2864 22pF., 5%, 50V .
  • Page 129 FWC50C37 (continued) 3849 100k, 1%, 0.1W ... 4822 117 10837 SEMICONDUCTORS 3850 3k9, 5%, 0.1W... . 4822 051 20392 6871 Diode, BAS216.
  • Page 130 FWC50C37 (continued) 2324 4.7nF., 20%... . . 4822 126 11714 6221 Diode, BZX79-B11 ..4822 130 34488 2325 10uF., 20%, 50V... 4822 124 41579 6225 Diode, BZX79-C8V2.
  • Page 131 FWC50C37 (continued) 2550 4.7uF., 20%, 100V..4822 124 40769 3567 22k, 5%, 0.1W... . 4822 051 20223 2551 100nF, 10%, 50V... 4822 126 14585 3568 22k, 5%, 0.1W.
  • Page 132 Screw, M3 x 10 ... 0000 000 0---- Badge Philips... . 4822 454 13408 Button Set CDC ...

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