TEAC CTM-685 Service manual

2000

TECHNICAL BULLETIN 26-May-

MODEL: CT-M685
PROBLEM:

No color via RF or AV inputs

File: CTM685 color tb.doc

This problem affects both RF and for AV inputs either for PAL or NTSC formats.

Instructions

Replace the capacitor C363.

Replacement Information

Position C363
Value 10 nF (0.01 uF)
Voltage 50V
Type Ceramic
Tolerance +80% -20%
Connected to Pin 14 of IC037, TDA4650
Part number 12310337090

Regards,

Alcides Berta

TEAC Australia Pty Ltd.

Page 1 of 1

TECHNICAL BULLETIN 3-Aug-2000

MODEL: CT-M685
PROBLEM:

Picture problems

File: CTM685 neg-blank-lines tb.doc

A faulty ceramic capacitor produces any of these effects on the picture:

• Negative picture

• Blank picture

• Horizontal lines

Instructions

Replace the capacitor C330.

Replacement Information

Position C330
Value 10 nF (0.01 uF)
Voltage 50V
Type Ceramic
Tolerance +80% -20%
Connected to Pin 5 of IC303, TA8628
Part number 12310337090

Regards,

Alcides Berta

TEAC Australia Pty Ltd.

Acknowledgments

Paul Everding supplied the primary information presented here based on technical observations by
John Srnka and Tony Wynne.

Page 1 of 1

TECHNICAL BULLETIN 3-Aug-2000

MODEL: CT-M685
PROBLEM:

Picture problems

File: CTM685 neg-blank-lines tb.doc

A faulty ceramic capacitor produces any of these effects on the picture:

• Negative picture

• Blank picture

• Horizontal lines

Instructions

Replace the capacitor C330.

Replacement Information

Position C330
Value 10 nF (0.01 uF)
Voltage 50V
Type Ceramic
Tolerance +80% -20%
Connected to Pin 5 of IC303, TA8628
Part number 12310337090

Regards,

Alcides Berta

TEAC Australia Pty Ltd.

Acknowledgments

Paul Everding supplied the primary information presented here based on technical observations by
John Srnka and Tony Wynne.

Page 1 of 1