Philips PHILIPS VCR-DVD service bulletins 9 free download

File name PHILIPS_VCR-DVD_service_bulletins_9.txt

PHILIPS VCR/DVD service bulletins 9 HOME PHILIPS VCR/DVD service bulletins and tips MODEL/CHASSIS: VR676 SYMPTOM: Strong distorted sound during playback of HIFI tapes. CURE: This can occur when the set is connected to the mains power under the following condition: set is in Low Power stand-by mode and there is no cassette in the set. Solution: Reset the set with a cassette present in the drive. Be sure that you return the set to your customer in normal stand-by mode and certainly not in Low power stand-by. This will help prevent the same fault happening when the customer connects the set to the mains power. This phenomena has been solved in a new version of the deck controller. The reset procedure of the audio IC 7850 has been corrected with deck software version: QTDP2-5U (codenr. 4822 209 15529 - IC7400) MODEL/CHASSIS: VR676 SYMPTOM: Sometimes switching to stereo on mono tapes CURE: Modify motherboard as described below. Use only these prescribed components !! * Remove screening plate from solder side of head-amplifier part. - Check R3082 on motherboard; if not 470E, replace by 470E (4822 051 20471). - Replace C2089 (220 pF) on motherboard by 150 pF (5322 122 33538). - Solder on top of C2089 an 1k resistor (4822 051 10102). * Solder screening plate on solder side of the head-amplifier part. MODEL/CHASSIS: VR676 SYMPTOM: How to activate tuner mode CURE: The tuner mode can be activated by pressing the stop key for more than 3 seconds until the display gives the information of the transmitter- name and the actual time. MODEL/CHASSIS: VR676 SYMPTOM: Spare part information CURE: Spare part information MOS-FET pos. 7350 changes From production week 9728, a power fet STP3NA60 with metal case and cooling block and an additional isolating plate is used in all QUEEN power supplies. Please follow the instructions that are packed with the STP3NA60 when a plastic FET is replaced by a metal-case FET. Additional codenumbers: pos. 7350 STP3NA604822 130 63794 pos. 7350/3 Screw m3x64822 502 14482 pos. 7350/2 Cooling block 4822 255 10387 pos. 0080 Isol. Plate 4822 466 11688 MODEL/CHASSIS: VR676 SYMPTOM: Overview of tuner/modulator pos. 1701 CURE: Overview of tuner/modulator pos. 1701 - 12 Volt version in5 volt version in Evolution AA sets Evolution AB sets - - 4822 210 10702(PAL B/G sets)4822 210 10786 (PAL B/G sets) = TMRG1-101A = TP916MK2 equivalent for: TP916 and TMRG1-102Aequivalent for: TMRG1-108A MODEL/CHASSIS: VR676 SYMPTOM: Correction codenumbers Remote Controls in Service CURE: Correction codenumbers Remote Controls in Service Manual Correct in the survey of Remote Controls on page 1 of the Service Manual: RT172/101 - 4822 219 10256 RT174/101 - 4822 219 10252 MODEL/CHASSIS: VR6760 SYMPTOM: Timer record fails to start CURE: Replace brake/friction pads, and turntables if the brake surface area of the turntables shows signs of wear. Brakepos. 23