Pioneer TS7 Service Manual page 54

1
QQ
[TS7 REPAIRS]
3 7 63 1515 0
↓
[Tie a wire between K7003 and the ground]
A
↓ ← (1) (from this page)
[Turn the power on]
↓
<LED(--:--) lights up>
B
C
TE
L 13942296513
[Push all the keys, one by one.]
↓
<LED(88:88) lights up>
D
E
www
(b) (to next page)
F
54
1
http://www.xiaoyu163.com
2
NG
<CN7001 Pin8,9 (5V) : 5V?>
<IC7001 Pin44(AC_POWER) Correct?>
<IC7001 Pin24(SM+5V) : 4.4V?>
<IC7001 Pin36(RESET) High?>
<IC7001 Pin41(X1)8MHz oscillation correct?>
<IC7001 Pin37(XT2)32.768kHz oscillation correct?>
<After replacing IC7001 ,OK?>
↓
(1): Redo from start
NO
<K7001: 3.3V/K7002: 5V both correct?>
<K2001 27MHz oscillation correct?>
<R2132(XRESET0) High?>
<IC7001 Pin13(SDA)Pin14(SCL) both High?>
[Enter checking around IC2001(OMEGA) or MEMORY devices]
↓
[Add solder to Resistor-Arrays around IC3002]
↓
[Add solder to IC3002] : SDRAM
↓
x ao
[Replace IC3002] : SDRAM
↓
[Replace IC3001] : FLASH ROM
. i
↓
[Replace MAIN ASSY]
TS7, BCT-1710, BCT-1720, BCT-1730
2
http://www.xiaoyu163.com
3
NO
[Enter to "Power Supply Assy" check]
YES
[Return from ((A)) "Power Supply Assy" check
<MAIN ASSY short check>
NO
YES
NO
YES
NO
YES
NO
YES
YES
NO
Q Q
3 6 7
YES
***NO WAKE-UP***
NO
<IC7001 Pin50(XSTBY) High?>
YES
NO
[Replace parts around VCXO]
(For example ; crystal resonator, IC2003.....)
YES
NO
[Replace R2132]
YES
NO
<After repalcing IC7001, OK?>
YES
u163
y
3
4
2 9 9 4
8
↓
((A)) (to page 55)
((AA)) (from page 55)
↓
↓
NG
OK
[MAIN ASSY is faulty.
Repair shorten places.]
[Replace Power Supply Assy]
[Replace D7004]
[Replace parts around IC7003]
[Replace X7001]
NO
[Replace X7002]
[Replace IC7001]
1 3 1 5 0 5 8 2 9
NO
↓
YES
[Replace parts around Q7006/
Q7011/Q7014]
NO
YES
m
co
.
4
2 8
9 9
9 4 2 8 9 9
[Replace
FRONT
ASSY]
[Enter I2C
(IIC) check]
↓
((B))
(to page 56)