Read Sony TC-KE240 / TC-RE340 Service Manual online
11
SECTION 5
SERVICE MODE
Key Check & Display Check Mode
1. While pressing two buttons of
[SYNCHRO]
and
[REC MUTING ]
, press the
[POWER]
button to turn the
power ON.
2. Enter the test mode and display as figure 1.
3. Each time some button is pressed or switch position is selected,
3. Each time some button is pressed or switch position is selected,
the fluorescent indicator tube displays as following table.
Button or Switch
Display
RESET
refer to figure 2
MEMORY
refer to figure 3
SYNCHRO
all segments (refer to figure 4)
FADER
0 (refer to figure 5)
ARL
1
m
2
h *1
3
H
4
M
5
x
6
PAUSE X
7
REC MUTING W
8
REC z
9
AUTO CAL *1
A
MPX FILTER C
DOLBY NR
[C]
MPX FILTER B
DOLBY NR
[B]
OFF
no indication
C
[C]
B
[B]
*1) TC-RE340 only
W
Dolby NR
switch
dB
–20
–10
–4
0
+2
+4
+6
+8
–30
–
∞
L
R
;
figure 1
dB
–20
–10
–4
0
+2
+4
+6
+8
–30
–
∞
L
R
I
;
8
figure 2
dB
–20
–10
–4
0
+2
+4
+6
+8
–30
–
∞
L
R
;
figure 3
TAPE TYPE
dB
–20
–10
–4
0
+2
+4
+6
+8
–30
–
∞
L
R
PLAY
REC
DOLBY NR
M
AUTO
CAL
I
II
IV
B
C
88 88
;
figure 4
dB
–20
–10
–4
0
+2
+4
+6
+8
–30
–
∞
L
R
0
;
figure 5
number indication
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