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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Good picture- no -color -- b/w only
A friend gave me his Mitsubishi 35 inch color TV CS3504R.
I get great picture on all channels, all inputs- cable, antenna, VCR but only black and white. I get no color. I have changed the tint and color controls from the menu- no change. Also, the menu IS in COLOR!?!! so I know the color part works just great. I am scratching my head. I don't know enough about TVs to figure out why I cannot get over the air color but can get internal color. ? |
#2
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Scott wrote: A friend gave me his Mitsubishi 35 inch color TV CS3504R. I get great picture on all channels, all inputs- cable, antenna, VCR but only black and white. I get no color. I have changed the tint and color controls from the menu- no change. Also, the menu IS in COLOR!?!! so I know the color part works just great. I am scratching my head. I don't know enough about TVs to figure out why I cannot get over the air color but can get internal color. ? loose connections on the xtal in the chroma decoder -Ben |
#3
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may sound obvious, but if youre using a scart lead, make sure that is in
properly at noth ends. "Scott" wrote in message om... A friend gave me his Mitsubishi 35 inch color TV CS3504R. I get great picture on all channels, all inputs- cable, antenna, VCR but only black and white. I get no color. I have changed the tint and color controls from the menu- no change. Also, the menu IS in COLOR!?!! so I know the color part works just great. I am scratching my head. I don't know enough about TVs to figure out why I cannot get over the air color but can get internal color. ? |
#4
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sory ignore me, should have read the question properly ('all inputs')
"Scott" wrote in message om... A friend gave me his Mitsubishi 35 inch color TV CS3504R. I get great picture on all channels, all inputs- cable, antenna, VCR but only black and white. I get no color. I have changed the tint and color controls from the menu- no change. Also, the menu IS in COLOR!?!! so I know the color part works just great. I am scratching my head. I don't know enough about TVs to figure out why I cannot get over the air color but can get internal color. ? |
#5
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Do you have good color on the monitor output?
Check these tips also : --------------------------------------------------------------- Text pasted from WinSTIPS 2.0 http://www.ServiceSoftware.com --------------------------------------------------------------- MITSUBISHI CS3504R Color No Chroma From Mitsubishi Check The Value Of C7224(.047uf 50v Np).Located On The Digital-Pcb At Pin 4 Of Ic7104. --------------------------------------------------------------- MITSUBISHI CS3504R Color No Chroma From Mitsubishi May Be Intermittent. Suspect Vr7100 (50k). Located On Pcb-Digital At Ic7104 Pin 4. --------------------------------------------------------------- MITSUBISHI CS3504R Color No Chroma Main Or Pip From Mitsubishi Color And Luminance Ok From Monitor Output. Confirm Chroma Into Ic7104 Pin5. If Ok Confirm Chroma Out Of Ic7104 Pin 3. If Missing Check C7198 ( Pin 6 Ic7104) For Leaky/Shorted. Located On Pcb- --------------------------------------------------------------- MITSUBISHI CS3504R Color No Chroma Main Or Pip From Mitsubishi Suspect Following Components On Pcb-Digital: C7103 1000uf 16v At Ic7100 Pin 19 --------------------------------------------------------------- MITSUBISHI CS3504R Color No Chroma Main Or Pip From Mitsubishi Suspect Defective C7119 (0.1uf/ 25v). Located On Pcb-Digital At Ic7101 Pin 9. * Note - Voltage At Pin 9 May Check Correctly, But Capacitor Is Defective. Replace. --------------------------------------------------------------- MITSUBISHI CS3504R Color No Chroma Main Or Pip From Mitsubishi Suspect Defective 3.58mhz Crystal X601. Not Free Running Osc. If Chroma Signal Low, X601 Will Drift Off Freq. Replace. Located On Pcb-Main At Ic201 Pin 25. Pt# 285p015010 --------------------------------------------------------------- MITSUBISHI CS3504R Digital No Color On Pip From Mitsubishi Color And Luminance Ok From Monitor Output. Confirm Chroma Into Ic7104 Pin 5. If Ok Confirm Chroma Out Of Ic7104 Pin 3. If Missing Check C7198 ( Pin 6 Ic7104) For Leaky/Shorted. Located On Pcb- --------------------------------------------------------------- -- ========================== Jeff Stielau Shoreline Electronics Repair 344 East Main Street Clinton,CT 06413 860-399-1861 860-664-3535 (fax) ======================== "Scott" wrote in message om... A friend gave me his Mitsubishi 35 inch color TV CS3504R. I get great picture on all channels, all inputs- cable, antenna, VCR but only black and white. I get no color. I have changed the tint and color controls from the menu- no change. Also, the menu IS in COLOR!?!! so I know the color part works just great. I am scratching my head. I don't know enough about TVs to figure out why I cannot get over the air color but can get internal color. ? |
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