5 Troubleshooting
PN17K*/PN17J*
5-9
5-1-16 No Video
IC101 Pin 12, 14 and 16 inputs
are right?
IC101 Pin 18, 21 and 24
outputs are right?
Check I
2
C bus and +12V line.
Yes
Yes
No
Check the signal cable connection.
No
IC103 Pin 1, 2 and 3 outputs
are right?
Check +12V, +72 V line.
Check and replace IC103.
Yes
No
Cathode DC levels are right?
Check +72V line.
Check and replace QR01, QR02,
QG01, QG02, QB01, and QB02.
Yes
No
G2 voltage is right?
Check G2 wire, CRT Socket board
and FBT.
Change CRT.
Yes
Done.
No
Check signal cable and connection.
WAVEFORMS
15
16
17
15
1.00V (IC101 #12,14,16)
CH1 P-P = 1.00V
CH1 RMS = 2.452V
16
1.00V (IC101 #18,21,24)
CH1 P-P = 1.00V
CH1 RMS = 2.792V
17
20.0V (IC103, #1, 2, 3)
CH1 P-P = 20.0V
CH1 RMS = 40.52V
Summary of Contents for PN17K Series
Page 8: ...2 Product Specifications 2 4 PN17K PN17J Memo...
Page 18: ...Memo 4 Alignment and Adjustments 4 8 PN17K PN17J...
Page 37: ...PN17K PN17J 6 1 6 Exploded View and Parts List 6 1 PN17KT JT...
Page 38: ...6 2 PN17KO JO 6 Exploded View Parts List 6 2 PN17K PN17J...
Page 39: ...6 Exploded View and Parts List 6 1 1 Front Cover CRT Ass y PN17KT JT PN17K PN17J 6 3...
Page 40: ...6 1 2 Chassis Stand Ass y PN17KT JT 6 Exploded View Parts List 6 4 PN17K PN17J...
Page 41: ...6 1 3 Rear Ass y PN17KT JT 6 Exploded View Parts List PN17K PN17J 6 5...
Page 42: ...6 2 1 Front Cover CRT Ass y PN17KO JO 6 Exploded View Parts List 6 6 PN17K PN17J...
Page 43: ...6 2 2 Chassis Stand Ass y PN17KO JO 6 Exploded View Parts List PN17K PN17J 6 7...
Page 44: ...6 2 3 Rear Ass y PN17KO JO 6 Exploded View Parts List 6 8 PN17K PN17J...
Page 60: ...Memo 8 Block Diagrams 8 2 PN17K PN17J...