Board Selection By Defect - Sony KZ-32TS1U Training Manual

Chapter 17 - Board Selection by Defect
This table shows the boards that could cause the symptoms listed. The most likely board is designated #1, the
second likely #2, etc.
Symptom
Audio Problem
Dark Screen sound OK
Dead Set – no relays heard
Dead Set – relays click
Stby LED blinks 3 times
Stby LED blinks 4 times
Stby LED blinks 5 times
Stby LED blinks 6 times
Stby LED blinks 9 times
Video Distortion – Tuner &
composite Video
Video Distortion –
component video
Video Distortion – all inputs
Symptom
Sony Model KZ-32TS1U // KZ-41TS1U TV Diagnostic Guide
Table 17-1 Symptoms and Related Circuit Board
A BB
(Video) (Video)
1
3 2 1
See Standby indicator blinks
1-Fan,
2-A Bd.
3 2 5
2
2 1
1
1
A BB
Probable board failure
BC C
(optical
unit)
2 – ck fuses
PS1601-2
4 *See "Determining if the optical unit
is OK" for quick tests.
1 also ck for
open BiMetal
fuse under rear
fan.
4 1
1 – ck fuses
PS1601-2
2
BC C
(optical
unit)
40
G (PS) Lamp
Driver
1
G Lamp
Driver
M (Micro)
1 – Ck
lamp
cover Sw;
2- M Bd.
3
2
6
M