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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 776
Matsui
2190
FLAT OUT BRIGHTNESS
CHECK SUPPLY TO RGB STAGES R613 etc
14-09-04
Matsui
2190
Fluctuating HT
C808 1µ 63v
14-09-04
Matsui
2190
FLUCTUATING POWER SUPPLY
C808 1uF , 63V
14-09-04
Matsui
2190
Frame collapse.
IC401 ( TDA8175 ) , IC1401 ( DPU2543 )
14-09-04
Matsui
2190
Hiss from speaker - OSG "Mono-stereo - bil A"
IC APU2470T ( Pt No.IC1301/013240252 )
14-09-04
Matsui
2190
int sound
dry joints if panel connections to main pcb
14-09-04
Matsui
2190
Int start up from cold
Dry joints wire link after D807 cathode & L805
14-09-04
Matsui
2190
Lack of height.
24v rail low at 18v TR803 ( BD139/16 )
14-09-04
Matsui
2190
Mod to allow set to come straight on
Fit 1N4148 in posn DISU on front of PCB
14-09-04
Matsui
2190
MOD TO ALLOW YOU TO SW ON WHEN MAINS SW PRESSED
FIT DIODE IN POSITION D1511 IN4148
14-09-04
Matsui
2190
No cold start
C803 o/c
14-09-04
Matsui
2190
No sound
R312 330R overheating & TDA2030 audio o/p chip u/s
14-09-04
Matsui
2190
NO SOUND
R312 ( 330R ) or TDA2030 AUDIO IC'S
14-09-04
Matsui
2190
Stuck in standby.
R613 4.7R ( marked 813 on some sets ) behind LOPTX.
14-09-04
Matsui
2190
THE ON BUTTON HAS TO BE PRESSED IN FOR SOME TIME B
C801 , C803 , C807 , C808 ALL 100uF 63v
14-09-04
Matsui
2190
To allow sw on from on/off sw instead of hset
Fit 1N4148 or similar in posn D1511
14-09-04
Matsui
2190
Tripping
CHECK 5V AND 12V , IF LOW CHECK THE TWO 2 , 200uF CAPS
14-09-04
Matsui
2190
TRIPS , THEN MOTORBOATS IF REM BUTTON HELD DOWN
CHECK BOTH 2200mfd CAPS IN 8.5v SUPPLY
14-09-04
Matsui
2190
Trips at start up unless you persevere with holding down hset keys
St/by 5v low at 4v etc; 2 x 2200µ elects low cap
14-09-04
Matsui
2190
TRIPS IF REMOTE HELD DOWN SET EVENTUALLY COMES ON
TWO 2200uF IN 8.5v AND 5v LINES
14-09-04
Matsui
2190T
low/dist sound - phone skt o/p ok
R312 &R313
14-09-04
Matsui
2190T
No vid in p in p box
dry joints vid i/p cable between pip pcb and main pcb
14-09-04
Matsui
2196N
Dead
SMPS transformer available from Mastercare Pt no 6226.04
14-09-04
Matsui
2196N
No R/C functs
Xtal in handset dry jointed
14-09-04
Matsui
2199
Dead after LOPTx replacement
CP401 in HT feed to LOPTx
14-09-04
Matsui
2199N
Int tuning
MICRON - micro? Faulty - from Mastercare
14-09-04
Matsui
2199N
No st/by - lop stages runs in st/by
Q503 2SC4160 leaky
14-09-04
Matsui
2199N
St/by LED flashes & Motorboating sound at sw/on
C541 22µ 50v 11v supply smoother u/s
14-09-04
Matsui
2199N
Tripping
LOPTx Philips Part No 3221008 SEME HR7754 (but check label on Tx - more than 1 type)
14-09-04
Matsui
2199N
Would not sw to st/by
Q503 2SC4160 next to the chopper TX was dead short - fitted BD243C in lieu
14-09-04
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