Sony Trinitron KV-32HS510 Service Manual page 9

Self-Diagnostic Screen Display
For errors with symptoms such as "power sometimes shuts off" or "screen sometimes goes out" that cannot be confirmed, it is possible to bring up past
occurrences of failure on the screen for confirmation.
To Bring Up Screen Test
In standby mode, press buttons on the Remote Commander sequentially, in rapid succession, as shown below:
Channel 5
DISPLAY
Handling of Self-Diagnostic Screen Display
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you
have completed the repairs, clear the result display to "0".
Unless the result display is cleared to "0", the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.
Clearing the Result Display
To clear the result display to "0", press buttons on the Remote Commander sequentially when the diagnostic screen is displayed, as shown below:
Channel 8 ENTER
Quitting the Self-Diagnostic Screen
To quit the entire self-diagnostic screen, turn off the power switch on the Remote Commander or the main unit.
Self-Diagnostic Circuit
IC2300
MAIN MICRO
STBY-LED
STR
48
STBY-LED
44
OCP
45 OVP
43
LOW B ERR
5V
Sound volume -
M
CLKO
29
DATO 30
AC RLY 69
Q6527
Q6530
Q6532
D6537
A
D6505
D5007
IC504
O I UNREG 7V
O
Power ON.
SELF DIAGNOSIS
2: +B OCP
0
3: +B OVP
0
4: VSTOP
0
5: AKB
6: LOWB
M
IC2801
Y/C JUNGLE
AKB
58 CRT
SCL
26
35 VDY-
VPROT
R5104
25
SDA
HPROT 34
R5125
RY6501
Q5018
P_SW(-)
1 2
4 3
D
1K-PROT2
+B OVP UNREG 11V
HV PROT
— 9 —
KV-32HS510/34DRC510/34HS510/36HS510/38DRC510
Numeral "0"
means that no fault was detected.
Numeral "1"
means a fault was detected one
time only.
1
0
R5105
B
D
2 IC5007 14
IC6505
PH6501
+B
4 1
3 2
R5013
+B
D
Q5004
D5005
+B OCP
5V
Q6522
2
1
3
+B