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Check line between pins(79) and (78) of IC201.

Is there luminance signal (approx. 200mVp-p)

Check V-H.SW.P. line.

Is the supply V-H. SW.P. signal fed to pin 
(81) of IC201?.

Is there luminance signal input output 
at pins (13) and (14) of IC201?.

Is there luminance signal (approx. 0.5Vp-p)
input output at pin (19) of IC201?.

Is there luminance signal (approx. 0.3Vp-p)
input output at pins (42) of IC201?.

Is there luminance signal (approx. 0.5Vp-p)
input output at pins (26) of IC201?.

Check peripheral circuit of pins (13) and (14) 
of IC201?.

Check line between pins (18) and (19) 
of IC201. 

Check line between pins (21) and (42) 
of IC201. (C208)

Check line between pins (39) and (26) 
of IC201. (C212)

Is there luminance signal (approx. 0.5Vp-p)
input output at pin (39) of IC201?.

Is there luminance signal (approx. 0.5Vp-p)
inputted at pins (23) of IC201?.

Is voltage 5V applied to the CCD section power terminal at pin (36) of IC201?.

Is voltage of 5V applied to the chroma power
terminal pin(61) of IC201?

Is there chroma signal (approx. 156mVp-p/
burst) inputted at pin (46) of IC201?.

Is there chroma signal (approx. 197mVp-p/
bust) inputted at pin (58) of IC201?.

Is there luminance signal (approx. 0.5Vp-p)
outputted at pins (52) of IC201?.

Check line between circuit of pins (24)and(23) 
of IC201. (C210).

See FLOW CHART NO.18 E-E MODE TROUBLESHOOTING..

Replace IC201.

Check peripherial circuit pin (61) of IC201 and
PC 5V line

Check line between pin (60)and pin (46)
 of IC201.(C512).

Check whether the pins (73) and (75)of IC201
oscillate 4.43MHz at PAL/SECAM mode.

Check parts around of X502.

Check line between circuit of pins (58)and 
(35) of IC201.

Is there chroma signal (approx. 197mVp-p/
burst) outputted at pin (35) of IC201?.

Is there chroma signal (approx. 300mVp-p) 
outputted at pin (55) of IC201?.

Is there chroma signal (approx. 300mVp-p/
bust) inputted at pin (54) of IC201?.

Check line between circuit of pins (55)and 
(54) of IC201.

Replace IC201

Is CCD control voltage approx. 5V applied normally to the pin (37) from pin (57) of IC201?
Is clock signal (approx. 8.86MHz/0.5Vp-p) for CCD applied normally to the pin (44) from (69) of IC201?

Is there FM signal (approx. 200mVp-p)
inputted at pin(78) of IC201?

outputted at pin(78) of IC201?

Replace IC201.

Check M 12V line.

Check peripheral circuits of T601.

Check the MH-AA harness and A/C 
head.

Is there signal (Bias + Audio sig)
 at pin (6) of T601?

Check the AUDIO MUTE (H) line 
between pin (99) of IC201 and pin
(81) of IC701.

Is "L" level applied at pin(99) of 
IC201?

Is there signal at pin (4) of IC201?

Is  the supply voltage of 12V fed to 
pin (2) of T601?

Is there signal (Bias) at pin (5) of T601?

Check the Bias oscillation circuit (T601, 
Q602,Q603) and A-ERASE CTL line.

Is there audio signal inputted at input
terminal as shown in table?

Decoder or aux signal input terminal.
Pin (8) of IC201 

Is there audio signal outputted at pin (11) 
of IC201?

Does the trap circuit operate normally?

Check line ranging from SCART input 
terminal.

Check PC 5V lines.

Is there "L" level at pin(99) of IC201?

Check AUDIO MUTE (H) line between pin 
(99) of IC201 and pin (81) of IC701.

Check the trap circuit. (Q601, Q613).

Is the supply voltage of 5V fed to pin (96) 
of IC201?

To Output Terminal

Check line between Q601, Q602 of
IC 201 and Audio Output Terminal.

Is there "L" level at pin (99) of IC201.

Is there signal at pin (11) of IC201.

Re-adjust azimuth.

Are there signal at pin(1) of 
IC601?

Is there signal at pin (100) of IC201?.

Are there MH-AA harness and the PB AMP

@

peripheral parts normal?

Clean A/C head.

Replace IC201.

Is the azimuth height of A/C head properly
adjusted?

Replace A/C head.

Replace IC201.

Check the AUDIO MUTE (H) line between 
pin (99) of IC201 and pin (81) of IC701.

Servicing precautions

When the IC710(E

2

PROM) has been replaced, make the following reprogramming.

Depending on models, the IC710(E

2

PROM) has been factory adjusted for it s memory function.

It s therefore necessary to reprogram the memory function for the model in question.
Note that the servo circuit requires readjustments for the slow and still modes.

1. Memory function reprogramming.

a. Check the power off.(Power is standby mode)
b. Make for moment short-circuit test point(TP801), located at the front side on the main PWB.

Be sure that all the display light up into the TEST mode.

c. Using the CHANNEL(+) AND (—) buttons, select the right function numbers from JP0 to JP39, which appear in the

display, referring to the E

2

PROM map.

Press the DISPLAY button to pickup the functions(ON) and the CLEAR button to discard the functions(OFF).
DISPLAY and CLEAR buttons, are located on the remote control unit.

∗

when the DISPLAY button has been pressed (ON), the memory function number starts flashing.

∗

when the CLEAR button has been pressed (OFF), the memory function number lights up.

d. Example :  "ON" and "OFF" are taken as "1" and "0" respectively.

The numbers JP0 to JP39 are divided into four groups and each group s setting is displayed in hexadecimal notation.

JP27 JP26 JP25 JP24

1

1

0

0

↓

C

JP23 JP22 JP21 JP20

0

0

0

0

↓

0

JP19 JP18 JP17 JP16

0

0

0

0

↓

0

JP15 JP14 JP13 JP12

0

1

0

0

↓

4

JP11 JP10 JP9 JP8

0

0

1

1

↓

3

JP7 JP6 JP5 JP4

0

0

0

0

↓

0

JP3 JP2 JP1 JP0

0

0

0

0

↓

0

Also recording level preset number selected from the ten keys on the remote control unit which appear in the
LCD display, referring to the E

2

PROM  map.

JP39 JP38 JP37 JP36

0

0

0

0

↓

0

JP35 JP34 JP33 JP32

0

0

0

1

↓

1

JP31 JP30 JP29 JP28

0

0

0

0

↓

0

SP     n

∗

∗

↑

selection from the 
ten keys.
(from "0" to "7")

EP     n

∗

∗

↑

selection from the 
ten keys.
(from "0" to "7")

Out lights

blank

SP     p

∗

∗

↑

selection from the 
ten keys.
(from "0" to "7")

LP     p

∗

∗

↑

selection from the 
ten keys.
(from "0" to "7")

2. Memory recording preset level reprogramming.

a. Similarly to the above step 1-a  and 1-b the same operate.
b. Using the CHANNEL (+) AND (-) buttons,  select the right function numbers continued from recording preset number

as has been  JP0~JP39, which appear in the LCD display, referring to the E

2

PROM map.

3. Example :

System

p : PAL
n : NTSC

↓

 Tape speed

→

LP or EP

n

∗

∗

        

↑

↑

                   

        

Chrominance preset number. (from "0" to "7")                    

       

Luminance preset number. (from "0" to "7")                    

3. Finally make for a moment short-circuit test point(TP801), located at the front side on the main PWB to clear the

TEST mode.

↑

↑

↑

↑