For any of you that may have this radio and have accidently blown the RF
transistor (Q1) via static discharge, here is the suitable replacement and
Up for auction in ebay, Restored Grundig RF 153a. 8.01x - Lect 24 - Rolling Motion, Gyroscopes, VERY NON-INTUITIVE - Duration: 49:13. Lectures by Walter Lewin. Grundig Record Boy Universal 210 - alternate - tuning cord Grundig RF112 - PCB layout Grundig RF153, RF1100, RF1101, RF2150, RF3300, RF3301, RF3311 - alignment - PCB layout. Grundig Radio Repair in Southfield on YP.com. See reviews, photos, directions, phone numbers and more for the best Television & Radio Stores in Southfield, MI.
procedure for those 'do it yourselfers'.
FET Replacement for DE1103/KA1103 ALSO ETON E5 AND GRUNDIG G5
--------------------------------- ---------------------------------
All credit should go to the VE6TVT on eHam.com review forums:
http :// www .eham,net
/reviews/detail/5071?page=2&ehamsid=99e6dd03235e966466c8dc650c0b9fa6#40622
http: / / www. eham, net / reviews/detail/5071? page = 2 & ehamsid =
99e6dd03235e966466c8dc650 c0b9fa6 # 40622
He discovered that a Philips BF861B N-Channel Junction FET is a suitable
replacement for a damaged RF preamp (Q1) circuit in the DE1103/KA1103.
I Having carelelessly my DE1103 shocked into silence on a dry winter's day,
I
had nothing to lose, and decided to try it. The swap worked for me also,
and my DE1103 performs as well as my KA1103 which was purchased as
replacement.
The steps are simple, but careful handling and a light touch are needed.
- Remove all screws in the back of the unit (includes 1 in batt compartment)
and 6 more.
- Open the case partway and disconnect the white wire and the ribbon
red/yellow wires on the white plastic connector.
Lay the front of the radio down next to the back, face down.
- Remove all screws which fasten the circuit board down, and slide it out
gently. Gently flip it up and and lay it down parallel to the top of the
case. Be careful not to damage the tiny wires that connect it to the
ferrite rod antenna.
- Flip your workboard upside down, and you'll see the RF preamp - a small
black rectangle the size of a sesame seed in the area labeled Q1, just to
the left of the antenna mount. It is attached at 3 solder points.
Grundig Radio Repairs
- Remove the old FET Q1, replace with the new one, and reassemble.
(This is very tricky unless you have the right tools and a steady hand. I
have
neither - I was just determined and very lucky. 'Next time' I will get
some proper tools first.)
Grundig Repair Near Me
Philips BF861B N-Channel Junction FETs can be found regularly on eBay --
usually in a batch of 100 for around $8 US.
Grundig Radio Repair Service
Thanks again to VE6TVT for this discovery.
Good luck, and happy listening!
Grundig Radio Repair
FET Replacement for DE1103/KA1103 ALSO ETON E5 AND GRUNDIG G5
--------------------------------- ---------------------------------
All credit should go to the VE6TVT on eHam.com review forums:
http :// www .eham,net
/reviews/detail/5071?page=2&ehamsid=99e6dd03235e966466c8dc650c0b9fa6#40622
http: / / www. eham, net / reviews/detail/5071? page = 2 & ehamsid =
99e6dd03235e966466c8dc650 c0b9fa6 # 40622
He discovered that a Philips BF861B N-Channel Junction FET is a suitable
replacement for a damaged RF preamp (Q1) circuit in the DE1103/KA1103.
I Having carelelessly my DE1103 shocked into silence on a dry winter's day,
I
had nothing to lose, and decided to try it. The swap worked for me also,
and my DE1103 performs as well as my KA1103 which was purchased as
replacement.
The steps are simple, but careful handling and a light touch are needed.
- Remove all screws in the back of the unit (includes 1 in batt compartment)
and 6 more.
- Open the case partway and disconnect the white wire and the ribbon
red/yellow wires on the white plastic connector.
Lay the front of the radio down next to the back, face down.
- Remove all screws which fasten the circuit board down, and slide it out
gently. Gently flip it up and and lay it down parallel to the top of the
case. Be careful not to damage the tiny wires that connect it to the
ferrite rod antenna.
- Flip your workboard upside down, and you'll see the RF preamp - a small
black rectangle the size of a sesame seed in the area labeled Q1, just to
the left of the antenna mount. It is attached at 3 solder points.
Grundig Radio Repairs
- Remove the old FET Q1, replace with the new one, and reassemble.
(This is very tricky unless you have the right tools and a steady hand. I
have
neither - I was just determined and very lucky. 'Next time' I will get
some proper tools first.)
Grundig Repair Near Me
Philips BF861B N-Channel Junction FETs can be found regularly on eBay --
usually in a batch of 100 for around $8 US.
Grundig Radio Repair Service
Thanks again to VE6TVT for this discovery.
Good luck, and happy listening!
Grundig Radio Repair
There’s never a convenient time for your appliance to break down but if it does we are here to help get your appliance back up and running. We have over 400 qualified engineers fitting genuine Grundig spare parts and you can be sure there’s an expert near you.
If you aren't covered by a guarantee or warranty, talk to us about our professional repair service where we will endeavour to ensure:
- Appointments available at your convenience*
- Your engineer will be fully qualified to repair your Grundig appliance
- Your engineer will only fit genuine Grundig spare parts
- Repairs are usually completed within 30-60 minutes
- Repairs are carried out in your property
Call us on:
0333 207 9920†
*Excludes weekends and all public bank holidays.
†Calls to 03 numbers cost no more than a national rate call to an 01 or 02 number. 03 numbers are included in landline and mobile plans with inclusive minutes.
