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PHILIPS VCR/DVD service bulletins 9
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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. 231; 4822 466 40181 Friction pad
pos. 214; 4822 528 20428 REMARKS: It is possible that wear of the
brakes/friction pads and the allied surfaces of turntables can cause the tape to
stop at the wrong position relative to the tape leader after a fast rewind.

MODEL/CHASSIS: VR6760
SYMPTOM: Loss of the +10c supply to the signal panel P306
CURE: Check C2329 on P306 for short circuit, which as a result may have damaged
T7304 on P306, and or T7607 on P607-2a.

MODEL/CHASSIS: VR6760
SYMPTOM: Timer record fails to start
CURE: The above listed VCRs have been in service for between 4 and 5 years and
maintenance work may be required on the tape deck. It is possible that wear of
the brakes/friction pads and the allied surfaces of the turntables can cause the
tape to stop at the wrong position relative to the tape leader after a fast
rewind. If this happens the VCR may fail to enter tape transport at first button
press. In the case of a time shift recording this will cause failure to start.
In severe cases it may not be possible to enter a function after rewind to tape
begin. Remedy: Replace all of the following parts, brake/friction pads, and
turntables as listed below. Position No. 209 Counterforce brake 4822 403 52488
213 Brake arm4822 403 10257 207 Reel disc x 24822 528 10523 232 Brake rollers x
24822 528 70638 After fitting the above listed items it is important to ensure
the take up spool friction is correct using the adjustment 2.2 in the deck
service documentation, also the adjustment 2.1 for the supply spool.

MODEL/CHASSIS: VR6760
SYMPTOM: Replacement P687Code No. 4822 214 31207
CURE: Replacement P687Code No. 4822 214 31207 - Two versions of P687 were
produced. The present version has the +11a and tacho outputs reversed with
respect to the earlier version. The two versions can be identified by a surface
mount transistor which is only present on the later version. When replacing an
early version of P687 (without a transistor) for the issued version with a
transistor the only requirement is to transpose the connections of the +11a and
the tacho output.

MODEL/CHASSIS: VR6761
SYMPTOM: Intermittently dead, no functions, no display.
CURE: On checking around the power supply it was found that the mains input was
intermittently missing. This was traced to a faulty mains input socket.

MODEL/CHASSIS: VR6761
SYMPTOM: P310 Signal panel
CURE: P310 Signal panel - The above models are all fitted with the P310 signal
panel. P310 contains a unit, position no. 1006. Unfortunately this unit is no
longer available as a spare part. The circuit and board layout diagrams have
always been available in the service documentation for VR6862 and the spares
list was published in the VR6761 service manual. This tips contains all the
above information which is required for the service of 1006 to component level.

MODEL/CHASSIS: VR678
SYMPTOM: No slow reverse possible with jog/shuttle.
CURE: This is a mistake in the directions for use. The jog reverse function was
not forseen for this set. However for customers who are complaining, the jog
reverse function is implemented with a new software version QCVP5-4U (IC 7030).
This software is availabale with codenr.: 4822 209 15818. Note: In case this
version is mounted in sets with deckprocessor PTDU8-XU also the deckprocessor
has to be changed to PTDU7-XU (4822 209 14879)

MODEL/CHASSIS: VR678
SYMPTOM: Display characters hardly visable
CURE: If the set functions are OK, but the characters and information on the
display are hardly visable, check the filament supply circuit. Check zenerdiode
6070 on the display and control PCB. Replace if defective by a new one:
BZX79-B10 (4822 130 61219)

MODEL/CHASSIS: VR678
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: VR678
SYMPTOM: New control software (firmware)
CURE: 1.Slow/jog reverse via jog/shuttlenot possible 2.Sychro edit with JVC
camcorder interuption with st.by display shows 'pause' but vcr has gone to st.
by 3.No antenna ,on E2 signal without VPS, programming a timer with following
data: E2,single,19:00-20:00,vps This results in ;correct timer recording ,timer
is erased, wrong time in display (time down load has been done instead E2
instead of program number 1). 4.Only /05 ;Programming and receiving a decoder
preset decoder transmitter WITHOUT nicam sound, decoder sets pin 8 of E2 high
This results in recording of decoded video and ENCODEDaudio. 5.Nicam mono in /05
,pressing up and down. Results in audio level too low. 6.Vcr teletext has stong
moiree (pin 12 of shift register 5 is high). SOLUTION for these problems
;exchange control software QCVP5-4U pos. 7030order nr. 4822 209 158 18 . The new
version has been introduced in production from week 9806. ATTENTION: if new
software is fitted in sets with deckprocessor PTDU8-4U then also the deck
processorhas to be changed to PTDU7-xU order nr. 4822 209 148 79 to avoid a
possible risk of tapedamage !

MODEL/CHASSIS: VR678
SYMPTOM: New control software (firmware)
CURE: In the new software the automatic MESECAMdetection in playback is
de-activated. All SECAM recordings are played back in SECAM L . In case of
playing a MESECAM recording the colour system has to be changed via the menu.
Order nr. For the new software QCVP5-5U(pos 7030) is : 4822 209 158 18The new
version has been intruduced in production from week 9815. ATTENCION : if the new
software is fitted then also the deckprocessor PTDU8-4U has to be exchanged for
the PTDU7-xU order nr. 4822 209 148 79 to avoid a possible risk of tape damage.

MODEL/CHASSIS: VR6785
SYMPTOM: Horizontal lines during playback, bad synchronisation
CURE: Check capacitor C2211 on the S-VHS board. Replace this one is the
capacitance is too low. Codenr. C2211 : 4822 124 22409 (220 uF - 10V)

MODEL/CHASSIS: VR6785
SYMPTOM: No colour.
CURE: Resolder pin5 of IC7130 on panel P8..

MODEL/CHASSIS: VR6785
SYMPTOM: TDA8136 (4822 209 61029) no longer available
CURE: TDA8136 (4822 209 61029) no longer available Service solution: Replace
pos.7208 By L7812ACV (4822 209 72742) and insert this IC into pins 2, 4 and 6.
Make a wire connection between the + of EL. cap 2223 and the + of EL. cap 2224.
Note: The L7812ACV has to be fixed directly to the heatsink, without insulation
between the voltage regulator and the heatsink.

MODEL/CHASSIS: VR6785
SYMPTOM: Codenumber correction
CURE: Codenumber correction - Flap pos. 124 is 4822 443 62881

MODEL/CHASSIS: VR6843
SYMPTOM: The capstan motor stops rotation and STANDBY mode is activated.
CURE: Replace with new motor. Codenumber 4822 361 60461. REMARKS : This occurs
after 10 minutes of playback or recording.

MODEL/CHASSIS: VR6843
SYMPTOM: Clock runs too fast
CURE: Mount a capacitor of 10 nF parallel to R5017 on the timer panel

MODEL/CHASSIS: VR6843
SYMPTOM: Some parts of the display give weak indication
CURE: Check/replace Display tube DG50014822 130 90548

MODEL/CHASSIS: VR6843
SYMPTOM: Set switches off after a short while
CURE: Check/replace Threading motor pos 40 4822 361 20651 Dew sensor pos 124822
403 52542 Driving belt pos 374822 358 30507 IC8034822 209 72522

MODEL/CHASSIS: VR6843
SYMPTOM: Tape damage
CURE: Check/replace/clean Swivel wheel pos 52 4822 528 70504 Brake of rewind
turntable pos 654822 403 52535 Brake of wind turntable pos 824822 403 53534
Half-load bracket pos 53 moves sticky Demount, clean shaft and hole and oil anew


MODEL/CHASSIS: VR6843
SYMPTOM: Spare part information
CURE: Spare part information When replacing a capstan motor (item 101) where the
solenoid (item 120) is mounted on the side of the motor frame, order : Service
code no. 4822 361 60461. When replacing a capstan motor (item 101) where the
solenoid (item 120) is mounted on a bracket fitted directly to the chassis deck
plate, order : Service code no. 4822 361 60466.

MODEL/CHASSIS: VR6843
SYMPTOM: Service hint
CURE: Service hint In order to revise the set after many hours of use, the
following items are advised: Swivel wheel pos 52 4822 528 70504 Brake of rewind
turntable pos 654822 403 52535 Brake of wind turntable pos 824822 403 53534
Pressure roller pos 724822 528 90551

MODEL/CHASSIS: VR6848
SYMPTOM: Mechanical malfunction
CURE: Check/replace Mode switch pos 554822 276 12496

MODEL/CHASSIS: VR6860
SYMPTOM: P676 (LED TOWER) defective
CURE: In most cases it is not necessary to replace the complete LED-TOWER (4822
214 31091). Mostly the fault can be repaired by replacing one of the defective
LEDs (4822 130 32676)

MODEL/CHASSIS: VR6860
SYMPTOM: Erasing codeword (locked)
CURE: Procedure to erase the codeword: - disconnect the set from the mains
supply - press simultanuously memory and record - connect the mains power -
release both buttons - press then record to erase the codeword

MODEL/CHASSIS: VR6862
SYMPTOM: P310 Signal panel
CURE: P310 Signal panel - The above models are all fitted with the P310 signal
panel. P310 contains a unit, position no. 1006. Unfortunately this unit is no
longer available as a spare part. The circuit and board layout diagrams have
always been available in the service documentation for VR6862 and the spares
list was published in the VR6761 service manual. This tips contains all the
above information which is required for the service of 1006 to component level.

MODEL/CHASSIS: VR6870
SYMPTOM: Failure of the power supply which uses the IC type UA4006B+DP.
CURE: In a number of cases this has been located to a short circuit electrolytic
capacitor decoupling pin 7 of the IC. The recommended replacement capacitor is
code number 4822 124 20688.

MODEL/CHASSIS: VR6870
SYMPTOM: In playback mode, only HiFi sound on the right channel.
CURE: On following the audio path whilst in the play mode it was found that the
signal was missing from the output (pin 13) of IC7002 (TDA 2514A). After
checking around this IC it was found that C2010 (470 pF) was faulty.

MODEL/CHASSIS: VR6870
SYMPTOM: Correction to Service Documentation
CURE: Correction to Service Documentation - Chapter 5 page 1 lists the spares
for the power supply, P018. Item 1002 is a 2AF Wickman fuse, the code number
given, 4822 253 20023, is for a 2 amp cartridge fuse. The correct code number
for item 1002 should read 4822 253 10051.

MODEL/CHASSIS: VR6870
SYMPTOM: Power supply P018 no longer available
CURE: Power supply P018 no longer available - The PCB sub board, position number
1003, code number 4822 214 31777 is no longer available. The circuit diagram,
board layout and codes for major parts are in the VR6870 service documentation.
Analysis of defective power supplies has shown that the most common causes of
failure are the following components: C2007, C2011, C2027 and C2006. The
capacitors C2007, C2011 and C2027 are on the sub panel P1003. The other
capacitor C2006 is on the main power supply board. The most common symptoms when
any of the previously mentioned capacitors fail is the power supply emits a
chirping sound indicating it is operating in the burst mode. If this fault
occurs replace all of the previously mentioned capacitors using the following
code numbers: C2007 10